Abstract
This paper presents a machine learning regression algorithm based on speed estimation for sensorless control of an induction motor. Long short-term memory (LSTM) based on deep learning method is used to design the induction motor speed observer. The proposed LSTM observer utilizes only the measured stator currents and voltages. It estimates the motor speed in the presence of inherent dynamics and sensor noises. Although LSTM is one of the common deep learning methods, its implementation on speed estimation for induction motor has not been tackled in the literature. The estimation performance of proposed LSTM observer (LSTMO) is investigated using four common metrics: root relative squared error, mean absolute error, mean squared error and root mean squared error. Performance of the proposed method is well guaranteed for different operating speeds. The designed observer is compared with the traditional sliding mode observer in order to prove the validity. It can be deduced from experimental results that the proposed method estimates the actual speed value successfully. LSTMO tracks the speed accurately regardless of any changes in reference speed. It is shown that there is no chattering effect on the estimated speed as compared with SMO.
Similar content being viewed by others
References
Demirtas M, Ilten E, Calgan H (2019) Pareto-based multi-objective optimization for fractional order PIλ speed control of induction motor by using Elman neural network. Arab J Sci Eng 44:2165–2175
Ilten E, Demirtas M (2019) Fractional order super-twisting sliding mode observer for sensorless control of induction motor. COMPEL Int J Comput Math Electr Electron Eng 38:878–892
Bahloul M, Chrifi-Alaoui L, Drid S, Souissi M, Chaabane M (2018) Robust sensorless vector control of an induction machine using multiobjective adaptive fuzzy luenberger observer. ISA Trans 74:144–154
Sun X, Chen L, Yang Z, Zhu H (2012) Speed-sensorless vector control of a bearingless induction motor with artificial neural network inverse speed observer. IEEE/ASME Trans Mechatron 18:1357–1366
Purwahyudi B (2011) RNN based rotor flux and speed estimation of induction motor. Int J Power Electron Drive Syst 1:58
Zhang Y, Yin Z, Zhang Y, Liu J, Tong X (2019) A novel sliding mode observer with optimized constant rate reaching law for sensorless control of induction motor. IEEE Trans Ind Electron 67:5867–5878
Ammar A, Kheldoun A, Metidji B, Ameid T, Azzoug Y (2020) Feedback linearization based sensorless direct torque control using stator flux MRAS-sliding mode observer for induction motor drive. ISA Trans 98:382–392
An Q, Zhang J, An Q, Liu X, Shamekov A, Bi K (2019) Frequency-adaptive complex-coefficient filter-based enhanced sliding mode observer for sensorless control of permanent magnet synchronous motor drives. IEEE Trans Ind Appl 56:335–343
El Daoudi S, Lazrak L, Lafkih MA (2020) Upgraded sensorless direct torque control using MRAS-sliding mode observer for asynchronous motor. In: 2020 IEEE 6th international conference on optimization and applications. IEEE, pp 1–5
Zhao Z, Ruan Z, Meng D, Xue Y, Gu C (2019) Sliding mode observer based sensorless model predictive current control for induction motor. In: 2019 IEEE 2nd international conference on power energy applications. IEEE, pp 84–88
Gadoue SM, Giaouris D, Finch JW (2009) Sensorless control of induction motor drives at very low and zero speeds using neural network flux observers. IEEE Trans Ind Electron 56:3029–3039
Brandstetter P, Kuchar M (2017) Sensorless control of variable speed induction motor drive using RBF neural network. J Appl Log 24:97–108
Abdel-Nasser M, Mahmoud K (2019) Accurate photovoltaic power forecasting models using deep LSTM-RNN. Neural Comput Appl 31:2727–2740
Souza RM, Nascimento EGS, Miranda UA, Silva WJD, Lepikson HA (2021) Deep learning for diagnosis and classification of faults in industrial rotating machinery. Comput Ind Eng 153:107060
Song Z, Yang J, Mei X, Tao T, Xu M (2021) Deep reinforcement learning for permanent magnet synchronous motor speed control systems. Neural Comput Appl 33:5409–5418
Cipollini F, Oneto L, Coraddu A, Savio S (2019) Unsupervised deep learning for induction motor bearings monitoring. Data Enabled Discov Appl 3:1–13
Qi X (2018) Rotor resistance and excitation inductance estimation of an induction motor using deep-Q-learning algorithm. Eng Appl Artif Intell 72:67–79
Shao S, Yan R, Lu Y, Wang P, Gao RX (2019) DCNN-based multi-signal induction motor fault diagnosis. IEEE Trans Instrum Meas 69:2658–2669
Mejia J, Avelar-Sosa L, Mederos B, Ramírez ES, Roman JDD (2021) Prediction of time series using an analysis filter bank of LSTM units. Comput Ind Eng 157:107371
Livieris IE, Pintelas E, Pintelas P (2020) A CNN–LSTM model for gold price time-series forecasting. Neural Comput Appl 32:17351–17360
Yang F, Zhang S, Li W, Miao Q (2020) State-of-charge estimation of lithium-ion batteries using LSTM and UKF. Energy 201:117664
Günel K, Ekti AR (2019) Exploiting machine learning applications for smart grids. In: 2019 16th international multi-conference systems and signals devices. IEEE, pp 679–685
Aydogmus O, Boztas G (2019) Deep learning-based approach for speed estimation of a PMa-SynRM. In: 2019 11th international conference on electrical and electronics engineering. IEEE, pp 172–176
Acikgoz H, Korkmaz D (2021) Long short-term memory network-based speed estimation model of an asynchronous motor. In: 2021 12th international symposium on advanced topics in electrical engineering. IEEE, pp 1–6
Kerboua A, Metatla A, Kelaiaia R, Batouche M (2018) Real-time safety monitoring in the induction motor using deep hierarchic long short-term memory. Int J Adv Manuf Technol 99:2245–2255
Yan Z, Utkin V (2002) Sliding mode observers for electric machines-an overview. In: IEEE 2002 28th annual conference of the IEEE industrial electronics society. IECON 02, vol 3. IEEE, pp 1842–1847
Wang J, Li J, Wang X, Wang J, Huang M (2021) Air quality prediction using CT-LSTM. Neural Comput Appl 33:4779–4792
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Appendices
Appendix 1
LSTM training configurations (ADAM) | |
---|---|
Gradient decay factor | 0.9000 |
Squared gradient decay factor | 0.9990 |
Epsilon | 1.0000e-08 |
Initial learn rate | 1.0000e-03 |
Learn rate schedule | ‘piecewise’ |
Learn rate drop factor | 1 |
Learn rate drop period | 5 |
L2 regularization | 1.0000e−4 |
Gradient threshold method | ‘l2norm’ |
Gradient threshold | Inf |
Max epochs | 20,000 |
Mini batch size | 64 |
Verbose | 1 |
Verbose frequency | 50 |
Validation data | [] |
Validation frequency | 50 |
Validation patience | Inf |
Shuffle | ‘once’ |
Checkpoint path | ‘’ |
Execution environment | ‘auto’ |
Worker load | [] |
Output Fcn | [] |
Plots | ‘training-progress’ |
Sequence length | ‘longest’ |
Sequence padding value | 0 |
Sequence padding direction | ‘right’ |
Dispatch In background | 0 |
Reset input normalization | 1 |
Batch normalization statistics | ‘population’ |
Appendix 2
Training | Testing | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Runs | Metrics | LSTMORRSE | LSTMOMAE | LSTMOMSE | LSTMORMSE | Runs | Metrics | LSTMORRSE | LSTMOMAE | LSTMOMSE | LSTMORMSE |
1 | RRSE | 9.418848038 | 3.526246071 | 17.49655724 | 3.246854782 | 1 | RRSE | 2.668583632 | 13.68160915 | 10.0595665 | 0.017718811 |
MAE | 0.006260031 | 0.004349939 | 0.010593898 | 0.004778219 | MAE | 0.007071496 | 0.012227926 | 0.010117421 | 0.007035259 | ||
MSE | 5.51E-05 | 3.03E-05 | 0.000148169 | 4.83E-05 | MSE | 0.000180098 | 0.000262202 | 0.00019763 | 0.000136089 | ||
RMSE | 0.007421944 | 0.005507178 | 0.012172464 | 0.00695064 | RMSE | 0.013420048 | 0.016192665 | 0.014058078 | 0.011665709 | ||
2 | RRSE | 9.149031639 | 3.324883938 | 18.5030098 | 3.176984072 | 2 | RRSE | 5.580521107 | 10.32260132 | 7.826035023 | 0.658511817 |
MAE | 0.006378506 | 0.004222007 | 0.011313778 | 0.005228935 | MAE | 0.007056737 | 0.009973672 | 0.008047258 | 0.007427121 | ||
MSE | 5.78E-05 | 2.65E-05 | 0.000167483 | 5.67E-05 | MSE | 0.000165052 | 0.000178353 | 0.000155643 | 0.000132479 | ||
RMSE | 0.00760504 | 0.005152079 | 0.012941515 | 0.007526683 | RMSE | 0.012847264 | 0.013354871 | 0.012475694 | 0.011509959 | ||
3 | RRSE | 9.39336586 | 3.290128946 | 19.59127998 | 3.127569437 | 3 | RRSE | 6.922595501 | 7.627953053 | 12.81419659 | 2.412278414 |
MAE | 0.006350711 | 0.004242572 | 0.01181056 | 0.005086933 | MAE | 0.00718584 | 0.008176859 | 0.011219737 | 0.006660185 | ||
MSE | 5.73971E-05 | 3.0552E-05 | 0.000179937 | 5.09104E-05 | MSE | 0.000168162 | 0.000153822 | 0.000224967 | 0.000126699 | ||
RMSE | 0.007576089 | 0.005527387 | 0.013414076 | 0.00713515 | RMSE | 0.01296771 | 0.012402512 | 0.014998907 | 0.011256046 | ||
4 | RRSE | 1.306487322 | 20.99702835 | 1.50126946 | 5.446084023 | 4 | RRSE | 6.630444527 | 7.587314606 | 11.55204391 | 2.09450841 |
MAE | 0.003635295 | 0.012531962 | 0.005000455 | 0.005549603 | MAE | 0.006991637 | 0.007991162 | 0.010374757 | 0.007069815 | ||
MSE | 2.00E-05 | 0.00016857 | 4.65E-05 | 5.44E-05 | MSE | 0.000164314 | 0.00014906 | 0.000205795 | 0.0001333 | ||
RMSE | 0.004470969 | 0.012983467 | 0.006821549 | 0.00737336 | RMSE | 0.012818511 | 0.012208994 | 0.014345541 | 0.011545583 | ||
5 | RRSE | 3.04867053 | 17.50133324 | 3.858956099 | 3.503109932 | 5 | RRSE | 7.307052612 | 6.952277184 | 10.96157265 | 2.71931839 |
MAE | 0.003962351 | 0.01045765 | 0.005059151 | 0.005358941 | MAE | 0.007134117 | 0.007527955 | 0.010137635 | 0.007265371 | ||
MSE | 2.59E-05 | 0.000125065 | 4.98E-05 | 5.21E-05 | MSE | 0.000164486 | 0.000133014 | 0.00020216 | 0.000155114 | ||
RMSE | 0.005086054 | 0.011183232 | 0.007057874 | 0.007220299 | RMSE | 0.012825198 | 0.011533155 | 0.014218311 | 0.012454473 | ||
6 | RRSE | 4.306676388 | 15.37772083 | 6.632499218 | 2.285447359 | 6 | RRSE | 7.482122898 | 6.440505028 | 11.28944683 | 3.063552141 |
MAE | 0.004474522 | 0.009267899 | 0.005748326 | 0.005145377 | MAE | 0.007331906 | 0.007166887 | 0.010321706 | 0.007350747 | ||
MSE | 3.09E-05 | 0.000102578 | 5.74E-05 | 5.18E-05 | MSE | 0.000172519 | 0.000132214 | 0.000204912 | 0.000157098 | ||
RMSE | 0.005559922 | 0.010128069 | 0.007577162 | 0.007196878 | RMSE | 0.013134649 | 0.011498431 | 0.014314743 | 0.012533883 | ||
7 | RRSE | 5.286098003 | 13.52388287 | 8.251178741 | 1.121043921 | 7 | RRSE | 7.246935844 | 4.619747162 | 12.89699554 | 3.810185432 |
MAE | 0.004487365 | 0.008280195 | 0.006391491 | 0.004864099 | MAE | 0.007125809 | 0.006744046 | 0.011263018 | 0.006657805 | ||
MSE | 3.24E-05 | 8.51E-05 | 7.35E-05 | 4.48E-05 | MSE | 0.000162235 | 0.000126699 | 0.000233945 | 0.000150451 | ||
RMSE | 0.005691004 | 0.009225348 | 0.008575831 | 0.006691532 | RMSE | 0.012737154 | 0.011256078 | 0.015295245 | 0.012265846 | ||
8 | RRSE | 6.705172062 | 10.57586956 | 11.5995779 | 0.30301404 | 8 | RRSE | 7.543101788 | 3.805944681 | 13.91415882 | 4.528122425 |
MAE | 0.005004418 | 0.006831058 | 0.007624794 | 0.004667386 | MAE | 0.007346611 | 0.006808578 | 0.011829331 | 0.006614024 | ||
MSE | 3.79E-05 | 6.20E-05 | 8.73E-05 | 4.60E-05 | MSE | 0.000169251 | 0.000129216 | 0.000244983 | 0.000152715 | ||
RMSE | 0.0061569 | 0.007876472 | 0.0093429 | 0.006783974 | RMSE | 0.013009667 | 0.01136733 | 0.015651928 | 0.012357794 | ||
9 | RRSE | 7.161473274 | 9.925579071 | 12.65333652 | 0.68126756 | 9 | RRSE | 6.629994392 | 4.343562603 | 16.27892303 | 4.894608021 |
MAE | 0.005405077 | 0.006369478 | 0.008168098 | 0.004881911 | MAE | 0.00724201 | 0.007542234 | 0.013223928 | 0.006704318 | ||
MSE | 5.36E-05 | 5.66E-05 | 0.000102979 | 4.39E-05 | MSE | 0.000173858 | 0.000190672 | 0.000281014 | 0.000154519 | ||
RMSE | 0.007321612 | 0.007520807 | 0.010147859 | 0.006624342 | RMSE | 0.013185541 | 0.013808408 | 0.016763484 | 0.012430552 | ||
10 | RRSE | 7.730611324 | 8.111246109 | 13.72068405 | 1.340061426 | 10 | RRSE | 8.399152756 | 2.521861792 | 15.76922607 | 4.48237133 |
MAE | 0.005301708 | 0.005846383 | 0.008881926 | 0.004472319 | MAE | 0.008260184 | 0.006941829 | 0.01321882 | 0.007105742 | ||
MSE | 4.11E-05 | 5.14E-05 | 0.000116789 | 4.18E-05 | MSE | 0.000179354 | 0.000141171 | 0.000282715 | 0.000141207 | ||
RMSE | 0.006411572 | 0.007166377 | 0.010806899 | 0.00646449 | RMSE | 0.013392327 | 0.011881541 | 0.016814124 | 0.011883047 | ||
11 | RRSE | 8.246351242 | 7.128528118 | 14.67404652 | 2.161147118 | 11 | RRSE | 8.564740181 | 2.460358858 | 14.69442654 | 4.974498272 |
MAE | 0.005568364 | 0.005312016 | 0.009154497 | 0.004745898 | MAE | 0.008203689 | 0.006491726 | 0.012558551 | 0.007406249 | ||
MSE | 4.67E-05 | 4.20E-05 | 0.000119662 | 4.33E-05 | MSE | 0.000179176 | 0.000118808 | 0.000266613 | 0.000159853 | ||
RMSE | 0.00683275 | 0.006477964 | 0.010938994 | 0.006580677 | RMSE | 0.013385655 | 0.0108999 | 0.016328281 | 0.012643311 | ||
12 | RRSE | 8.01764679 | 7.367462635 | 13.81046486 | 1.822310686 | 12 | RRSE | 7.992843628 | 3.103095293 | 17.28656578 | 5.937756062 |
MAE | 0.00563979 | 0.005385101 | 0.008747359 | 0.004925379 | MAE | 0.007859158 | 0.006905321 | 0.013597504 | 0.007215901 | ||
MSE | 4.72E-05 | 4.41E-05 | 0.000109174 | 5.06E-05 | MSE | 0.000179588 | 0.000128628 | 0.000292011 | 0.000166077 | ||
RMSE | 0.006867181 | 0.006640861 | 0.010448653 | 0.007109851 | RMSE | 0.013401036 | 0.011341426 | 0.01708832 | 0.012887081 | ||
13 | RRSE | 8.04128933 | 6.333078384 | 14.07639599 | 2.18533349 | 13 | RRSE | 9.172445297 | 1.139784575 | 16.91308212 | 5.492619991 |
MAE | 0.005637942 | 0.005151529 | 0.008829397 | 0.004801015 | MAE | 0.008500945 | 0.00705429 | 0.014018349 | 0.007201904 | ||
MSE | 4.65E-05 | 4.00E-05 | 0.000115587 | 4.85E-05 | MSE | 0.000187962 | 0.000136562 | 0.000306731 | 0.000135102 | ||
RMSE | 0.006820661 | 0.00632637 | 0.010751128 | 0.006966119 | RMSE | 0.013709915 | 0.011685953 | 0.01751373 | 0.011623331 | ||
14 | RRSE | 8.396392822 | 5.321415901 | 13.93141174 | 2.552544355 | 14 | RRSE | 8.368747711 | 1.923480272 | 19.48267174 | 6.174377918 |
MAE | 0.005794688 | 0.004741536 | 0.008701168 | 0.004685224 | MAE | 0.008357272 | 0.006711199 | 0.015602195 | 0.007307443 | ||
MSE | 4.82E-05 | 3.50E-05 | 0.000106328 | 4.88E-05 | MSE | 0.000196764 | 0.000145363 | 0.000348578 | 0.000143308 | ||
RMSE | 0.006945137 | 0.005918995 | 0.01031155 | 0.006985215 | RMSE | 0.014027272 | 0.012056658 | 0.018670231 | 0.011971114 | ||
15 | RRSE | 9.787680626 | 3.385415077 | 15.2611208 | 3.927855015 | 15 | RRSE | 9.889588356 | 1.128131509 | 18.83555984 | 6.182326794 |
MAE | 0.006162158 | 0.004430962 | 0.009431798 | 0.004787944 | MAE | 0.008918705 | 0.007161868 | 0.014807743 | 0.007991103 | ||
MSE | 5.47E-05 | 3.22E-05 | 0.000127544 | 4.82E-05 | MSE | 0.000200284 | 0.000165147 | 0.000331715 | 0.000169912 | ||
RMSE | 0.007398812 | 0.005670188 | 0.01129352 | 0.006939294 | RMSE | 0.01415218 | 0.012850969 | 0.018213047 | 0.013035043 | ||
16 | RRSE | 9.092707634 | 3.223680735 | 14.40806007 | 3.484260082 | 16 | RRSE | 6.326579571 | 6.522587776 | 6.347493172 | 2.398679256 |
MAE | 0.00600011 | 0.004416592 | 0.009048891 | 0.004757599 | MAE | 0.006652007 | 0.007400653 | 0.00741112 | 0.007136225 | ||
MSE | 5.17E-05 | 3.17E-05 | 0.000120915 | 4.57E-05 | MSE | 0.000172418 | 0.000143762 | 0.000159777 | 0.000132709 | ||
RMSE | 0.007191082 | 0.005631145 | 0.010996114 | 0.006759215 | RMSE | 0.013130791 | 0.011990085 | 0.012640292 | 0.011519928 | ||
17 | RRSE | 9.177042007 | 2.960017443 | 14.49669743 | 3.630592823 | 17 | RRSE | 7.975327492 | 3.953770399 | 10.1101017 | 3.556468725 |
MAE | 0.006081981 | 0.004323687 | 0.009015884 | 0.00476124 | MAE | 0.00788285 | 0.006161991 | 0.009607174 | 0.007641668 | ||
MSE | 5.23E-05 | 3.05E-05 | 0.000115905 | 5.02E-05 | MSE | 0.000175428 | 0.000114669 | 0.00019217 | 0.000165876 | ||
RMSE | 0.007234795 | 0.005518392 | 0.010765895 | 0.007084363 | RMSE | 0.013244913 | 0.010708384 | 0.013862554 | 0.012879279 | ||
18 | RRSE | 10.35882568 | 2.431340456 | 18.7802639 | 4.28304863 | 18 | RRSE | 8.080028534 | 3.792222738 | 10.40210152 | 3.636235476 |
MAE | 0.006523961 | 0.004284566 | 0.011312958 | 0.005037513 | MAE | 0.00788418 | 0.006277016 | 0.009809324 | 0.007533209 | ||
MSE | 5.91E-05 | 3.03E-05 | 0.000166722 | 4.79E-05 | MSE | 0.000174075 | 0.000114196 | 0.000187731 | 0.0001597 | ||
RMSE | 0.007687051 | 0.005503376 | 0.012912076 | 0.006919891 | RMSE | 0.013193735 | 0.010686262 | 0.013701498 | 0.012637227 | ||
19 | RRSE | 9.391844749 | 3.055666208 | 18.41030502 | 3.468268871 | 19 | RRSE | 8.450791359 | 3.210067749 | 12.01174068 | 3.708900928 |
MAE | 0.006257656 | 0.004298432 | 0.011184405 | 0.00491498 | MAE | 0.007938721 | 0.006489959 | 0.01096543 | 0.007347065 | ||
MSE | 5.55E-05 | 2.82E-05 | 0.000162764 | 5.18E-05 | MSE | 0.000176986 | 0.000153514 | 0.000227903 | 0.000149616 | ||
RMSE | 0.007447345 | 0.005306832 | 0.012757903 | 0.007194906 | RMSE | 0.013303599 | 0.012390064 | 0.015096473 | 0.012231751 | ||
20 | RRSE | 9.791671753 | 1.946482897 | 17.99656677 | 3.912195444 | 20 | RRSE | 8.685555458 | 2.690992594 | 12.47299862 | 4.039010525 |
MAE | 0.006417119 | 0.003980397 | 0.010874598 | 0.004969217 | MAE | 0.00829056 | 0.006095721 | 0.011194387 | 0.007367417 | ||
MSE | 5.73E-05 | 2.72E-05 | 0.000154625 | 5.11E-05 | MSE | 0.00018472 | 0.000126111 | 0.000222807 | 0.00014258 | ||
RMSE | 0.007569712 | 0.005210802 | 0.01243483 | 0.00714579 | RMSE | 0.013591187 | 0.011229934 | 0.014926734 | 0.011940689 | ||
21 | RRSE | 1.151005626 | 20.93393326 | 1.61465919 | 5.179502964 | 21 | RRSE | 7.993913174 | 1.405203223 | 19.3386631 | 7.281675816 |
MAE | 0.003587903 | 0.012515613 | 0.005088875 | 0.005359588 | MAE | 0.007644069 | 0.007409093 | 0.015308117 | 0.007373263 | ||
MSE | 1.96E-05 | 0.000170084 | 4.76E-05 | 4.89E-05 | MSE | 0.000202084 | 0.000159089 | 0.000352705 | 0.000152411 | ||
RMSE | 0.004426551 | 0.013041624 | 0.006895991 | 0.006993357 | RMSE | 0.014215617 | 0.012613068 | 0.018780429 | 0.012345501 | ||
22 | RRSE | 4.721087933 | 14.08647251 | 6.070676804 | 1.577996492 | 22 | RRSE | 8.472633362 | 0.225629628 | 20.53218079 | 7.597074986 |
MAE | 0.004394084 | 0.008656065 | 0.005749199 | 0.004748845 | MAE | 0.007918749 | 0.007607555 | 0.016108934 | 0.007331847 | ||
MSE | 3.86E-05 | 9.37E-05 | 6.28E-05 | 4.27E-05 | MSE | 0.000188463 | 0.0001879 | 0.000367236 | 0.000162931 | ||
RMSE | 0.006209368 | 0.009679062 | 0.007927103 | 0.006535403 | RMSE | 0.013728196 | 0.013707652 | 0.019163411 | 0.012764459 | ||
23 | RRSE | 5.285715103 | 11.88545322 | 8.465101242 | 0.688143492 | 23 | RRSE | 8.188530922 | 0.563410342 | 19.73656082 | 7.096270084 |
MAE | 0.00438732 | 0.007356174 | 0.00627473 | 0.004475981 | MAE | 0.007690742 | 0.007577449 | 0.015667846 | 0.006979452 | ||
MSE | 2.97E-05 | 6.99E-05 | 6.57E-05 | 3.89E-05 | MSE | 0.000183972 | 0.000159939 | 0.000348788 | 0.000139854 | ||
RMSE | 0.005447874 | 0.00835795 | 0.008106377 | 0.006234538 | RMSE | 0.013563617 | 0.012646681 | 0.018675879 | 0.011825983 | ||
24 | RRSE | 5.591560364 | 10.78257179 | 7.95010519 | 0.100517347 | 24 | RRSE | 8.479554176 | 0.3343952 | 19.55312538 | 7.812271118 |
MAE | 0.004569247 | 0.006905103 | 0.006298932 | 0.004612876 | MAE | 0.00785411 | 0.00737749 | 0.015416115 | 0.007326439 | ||
MSE | 3.42E-05 | 6.40E-05 | 6.87E-05 | 4.36E-05 | MSE | 0.000185844 | 0.000145844 | 0.000342492 | 0.000164227 | ||
RMSE | 0.005849355 | 0.008000671 | 0.00828966 | 0.006605408 | RMSE | 0.013632474 | 0.012076573 | 0.018506553 | 0.01281512 | ||
25 | RRSE | 6.128604889 | 9.206692696 | 11.60713482 | 0.241750702 | 25 | RRSE | 8.478050232 | 0.189988986 | 20.16418266 | 7.571714401 |
MAE | 0.004802908 | 0.006051816 | 0.00768233 | 0.00450154 | MAE | 0.007806574 | 0.007595241 | 0.015954887 | 0.007335765 | ||
MSE | 3.47E-05 | 5.40E-05 | 8.91E-05 | 4.06E-05 | MSE | 0.000188637 | 0.000160383 | 0.000360854 | 0.000143826 | ||
RMSE | 0.005889174 | 0.007350211 | 0.00944042 | 0.006371219 | RMSE | 0.013734516 | 0.012664231 | 0.018996162 | 0.01199274 | ||
26 | RRSE | 6.608845234 | 8.158085823 | 10.97660351 | 0.910784304 | 26 | RRSE | 8.011313438 | 0.675485849 | 19.97354317 | 7.072063446 |
MAE | 0.0048871 | 0.005741586 | 0.007257248 | 0.004320623 | MAE | 0.007612485 | 0.007474384 | 0.015624346 | 0.007152535 | ||
MSE | 3.47E-05 | 4.81E-05 | 8.52E-05 | 4.25E-05 | MSE | 0.000185275 | 0.000162225 | 0.000354367 | 0.000143339 | ||
RMSE | 0.005892995 | 0.006938844 | 0.009232687 | 0.006516813 | RMSE | 0.013611582 | 0.012736746 | 0.018824633 | 0.011972437 | ||
27 | RRSE | 6.861320019 | 7.324820995 | 11.7957716 | 1.249208212 | 27 | RRSE | 7.363449574 | 1.936250687 | 18.89953041 | 6.708554745 |
MAE | 0.005151983 | 0.005319409 | 0.007621985 | 0.004468231 | MAE | 0.007156076 | 0.007303722 | 0.01484952 | 0.007077089 | ||
MSE | 3.86E-05 | 4.07E-05 | 8.60E-05 | 4.14E-05 | MSE | 0.000186322 | 0.000163241 | 0.000330344 | 0.000140859 | ||
RMSE | 0.006212273 | 0.006383425 | 0.009272109 | 0.006433568 | RMSE | 0.013649969 | 0.01277659 | 0.018175358 | 0.011868417 | ||
28 | RRSE | 1.832819104 | 15.83655167 | 1.937633395 | 3.438581228 | 28 | RRSE | 7.875720024 | 1.502499938 | 19.51660728 | 7.346045017 |
MAE | 0.003238135 | 0.009563868 | 0.004983363 | 0.004544165 | MAE | 0.00752382 | 0.007286938 | 0.015171056 | 0.007363629 | ||
MSE | 1.69E-05 | 0.000107957 | 4.59E-05 | 3.66E-05 | MSE | 0.000185235 | 0.000152857 | 0.00033945 | 0.000164746 | ||
RMSE | 0.004113377 | 0.010390242 | 0.006775156 | 0.006046682 | RMSE | 0.013610103 | 0.012363521 | 0.01842417 | 0.012835339 | ||
29 | RRSE | 4.576643467 | 10.6365633 | 4.561273098 | 0.605561078 | 29 | RRSE | 7.811802387 | 1.443646312 | 20.17746735 | 6.97763586 |
MAE | 0.003889236 | 0.006661592 | 0.005336394 | 0.004231307 | MAE | 0.007355128 | 0.007327405 | 0.015786301 | 0.007033275 | ||
MSE | 2.37E-05 | 5.72E-05 | 5.18E-05 | 3.93E-05 | MSE | 0.000185986 | 0.000158743 | 0.000357127 | 0.000139749 | ||
RMSE | 0.004867573 | 0.00756449 | 0.007197705 | 0.006271651 | RMSE | 0.01363767 | 0.012599338 | 0.018897794 | 0.011821568 | ||
30 | RRSE | 6.382016659 | 8.093851089 | 6.727919102 | 0.788435638 | 30 | RRSE | 7.714351177 | 1.679606795 | 18.38054085 | 7.332436085 |
MAE | 0.004423352 | 0.006003464 | 0.005904355 | 0.004270176 | MAE | 0.007328041 | 0.007183528 | 0.01456661 | 0.007315627 | ||
MSE | 3.05E-05 | 6.71E-05 | 6.22E-05 | 3.60E-05 | MSE | 0.000186598 | 0.000142306 | 0.000318098 | 0.000163966 | ||
RMSE | 0.005522259 | 0.00819318 | 0.007884932 | 0.006000633 | RMSE | 0.013660084 | 0.011929211 | 0.017835295 | 0.012804924 | ||
31 | RRSE | 6.276622295 | 6.276304722 | 7.292142868 | 1.405661106 | 31 | RRSE | 8.191814423 | 1.085845709 | 19.35712051 | 7.4741745 |
MAE | 0.004670341 | 0.004952581 | 0.005844653 | 0.004297324 | MAE | 0.007819866 | 0.007054044 | 0.015345143 | 0.007461767 | ||
MSE | 3.33E-05 | 3.78E-05 | 6.05E-05 | 4.30E-05 | MSE | 0.00018647 | 0.000133681 | 0.000337538 | 0.000169426 | ||
RMSE | 0.005770518 | 0.006144757 | 0.007780995 | 0.006558882 | RMSE | 0.013655415 | 0.01156204 | 0.018372212 | 0.013016392 | ||
32 | RRSE | 6.714302063 | 5.087916374 | 9.897346497 | 1.620143533 | 32 | RRSE | 7.729020119 | 1.191905379 | 20.40231323 | 6.876341343 |
MAE | 0.00465186 | 0.004559014 | 0.006775913 | 0.004132907 | MAE | 0.007682878 | 0.007166218 | 0.015977206 | 0.007051782 | ||
MSE | 3.32E-05 | 3.37E-05 | 7.53E-05 | 3.33E-05 | MSE | 0.000185591 | 0.000163839 | 0.000354442 | 0.000142478 | ||
RMSE | 0.005763428 | 0.005808932 | 0.008676073 | 0.005774904 | RMSE | 0.013623194 | 0.012799968 | 0.018826623 | 0.0119364 | ||
33 | RRSE | 7.406809807 | 3.814402819 | 10.1796999 | 2.496333361 | 33 | RRSE | 7.835498333 | 1.422548771 | 19.65023232 | 7.421327591 |
MAE | 0.00512172 | 0.004324336 | 0.006888068 | 0.004312552 | MAE | 0.007526658 | 0.007397214 | 0.015524383 | 0.00724483 | ||
MSE | 3.83E-05 | 3.10E-05 | 8.16E-05 | 3.83E-05 | MSE | 0.000197118 | 0.000150653 | 0.000347086 | 0.000146072 | ||
RMSE | 0.006190902 | 0.005565836 | 0.009033924 | 0.006186175 | RMSE | 0.014039864 | 0.012274075 | 0.018630248 | 0.012086023 | ||
34 | RRSE | 7.399498463 | 3.353266239 | 10.45517349 | 2.380333185 | 34 | RRSE | 7.812380791 | 1.569856167 | 19.31220245 | 7.450750351 |
MAE | 0.005109637 | 0.004311424 | 0.007086303 | 0.0044443 | MAE | 0.007335482 | 0.007233674 | 0.015125544 | 0.007228965 | ||
MSE | 3.90E-05 | 3.12E-05 | 8.50E-05 | 3.93E-05 | MSE | 0.000176977 | 0.000145313 | 0.000334656 | 0.000165314 | ||
RMSE | 0.006241206 | 0.005583348 | 0.009217535 | 0.006271425 | RMSE | 0.013303279 | 0.012054599 | 0.01829361 | 0.012857459 | ||
35 | RRSE | 8.238182068 | 2.257633924 | 12.91383839 | 3.009449959 | 35 | RRSE | 8.139739037 | 1.791327 | 21.93042183 | 7.602011681 |
MAE | 0.005366476 | 0.003734543 | 0.008134623 | 0.004271665 | MAE | 0.007451959 | 0.007794598 | 0.016633315 | 0.007348958 | ||
MSE | 4.18E-05 | 2.54E-05 | 9.80E-05 | 3.49E-05 | MSE | 0.000188724 | 0.000167315 | 0.000383303 | 0.000146047 | ||
RMSE | 0.006462176 | 0.005035311 | 0.009901814 | 0.005905249 | RMSE | 0.013737672 | 0.01293503 | 0.019578135 | 0.012085009 | ||
36 | RRSE | 8.604465485 | 1.274289727 | 12.1039772 | 3.788179874 | 36 | RRSE | 7.931909561 | 1.235551 | 18.92589378 | 7.692430019 |
MAE | 0.005501057 | 0.004173941 | 0.007757239 | 0.004335421 | MAE | 0.00765868 | 0.007249773 | 0.014952833 | 0.007526848 | ||
MSE | 4.31E-05 | 3.01E-05 | 9.71E-05 | 3.87E-05 | MSE | 0.0001586 | 0.000121556 | 0.000328603 | 0.000148128 | ||
RMSE | 0.006565338 | 0.005484293 | 0.009853259 | 0.006219626 | RMSE | 0.012593656 | 0.01102524 | 0.018127402 | 0.012170776 | ||
37 | RRSE | 9.111460686 | 1.011760473 | 14.76052475 | 4.005013466 | 37 | RRSE | 7.910579681 | 1.526494384 | 19.22528458 | 7.427342892 |
MAE | 0.005772948 | 0.00405997 | 0.009111213 | 0.004466235 | MAE | 0.007403136 | 0.007380349 | 0.015017303 | 0.007202365 | ||
MSE | 4.59E-05 | 2.78E-05 | 0.00011862 | 3.76E-05 | MSE | 0.000189521 | 0.000150182 | 0.000339669 | 0.000149624 | ||
RMSE | 0.006778528 | 0.005273215 | 0.010891263 | 0.00613579 | RMSE | 0.013766674 | 0.012254872 | 0.018430114 | 0.012232099 | ||
38 | RRSE | 9.252702713 | 1.21647346 | 14.64553928 | 4.036224842 | 38 | RRSE | 7.486089706 | 1.818207145 | 19.62262917 | 7.877697468 |
MAE | 0.006009937 | 0.004259036 | 0.009099979 | 0.004589162 | MAE | 0.007133023 | 0.007035055 | 0.01519981 | 0.007992134 | ||
MSE | 5.01E-05 | 3.16E-05 | 0.000122099 | 4.25E-05 | MSE | 0.000197008 | 0.00015039 | 0.000346896 | 0.000163652 | ||
RMSE | 0.007079761 | 0.005621814 | 0.01104984 | 0.006516162 | RMSE | 0.014035956 | 0.012263369 | 0.018625151 | 0.012792641 | ||
39 | RRSE | 8.706567764 | 1.158379793 | 14.28929806 | 3.659450054 | 39 | RRSE | 7.781282425 | 2.251657009 | 18.4135437 | 7.317749023 |
MAE | 0.005840024 | 0.003902864 | 0.008861193 | 0.00455858 | MAE | 0.007202005 | 0.008148436 | 0.014493564 | 0.007183693 | ||
MSE | 4.92E-05 | 2.69E-05 | 0.000113961 | 3.91E-05 | MSE | 0.00018974 | 0.0001652 | 0.000327626 | 0.000143165 | ||
RMSE | 0.007015065 | 0.00519067 | 0.01067527 | 0.006252967 | RMSE | 0.013774601 | 0.012853005 | 0.018100448 | 0.011965175 | ||
40 | RRSE | 9.25455761 | 0.267809063 | 15.61623859 | 4.121153355 | 40 | RRSE | 7.029219151 | 2.792447329 | 19.35932732 | 6.570281506 |
MAE | 0.006009383 | 0.003940254 | 0.009588476 | 0.004630211 | MAE | 0.006883624 | 0.007529828 | 0.015036232 | 0.00724387 | ||
MSE | 4.98E-05 | 2.80E-05 | 0.000129308 | 4.15E-05 | MSE | 0.000188094 | 0.000167881 | 0.000337763 | 0.000143063 | ||
RMSE | 0.007057134 | 0.005291339 | 0.011371358 | 0.006445138 | RMSE | 0.013714748 | 0.012956879 | 0.018378334 | 0.011960912 | ||
41 | RRSE | 10.11128521 | 1.136354804 | 17.86570549 | 4.975209236 | 41 | RRSE | 8.175927162 | 1.923269987 | 20.2292614 | 8.05198288 |
MAE | 0.006325124 | 0.004159327 | 0.010795362 | 0.004738116 | MAE | 0.007492046 | 0.007333628 | 0.01567021 | 0.007663357 | ||
MSE | 5.36E-05 | 3.05E-05 | 0.000155025 | 4.25E-05 | MSE | 0.000190717 | 0.000147727 | 0.000349662 | 0.000175051 | ||
RMSE | 0.007323223 | 0.005524328 | 0.01245092 | 0.006517296 | RMSE | 0.013810023 | 0.012154279 | 0.018699246 | 0.013230701 | ||
42 | RRSE | 10.23351765 | 0.32144013 | 18.88076782 | 5.131510735 | 42 | RRSE | 7.640318394 | 1.992036819 | 19.28205872 | 7.438173771 |
MAE | 0.006641489 | 0.004071428 | 0.011272075 | 0.004806296 | MAE | 0.00732991 | 0.007462173 | 0.015077786 | 0.007454067 | ||
MSE | 5.93E-05 | 2.89E-05 | 0.000161025 | 4.40E-05 | MSE | 0.000188626 | 0.000152298 | 0.000340758 | 0.0001669 | ||
RMSE | 0.007701404 | 0.00538042 | 0.012689564 | 0.006636936 | RMSE | 0.013734116 | 0.012340907 | 0.01845964 | 0.012918961 | ||
43 | RRSE | 9.837866783 | 0.256581545 | 18.66327858 | 4.766049862 | 43 | RRSE | 7.735900879 | 2.022973061 | 20.55413055 | 7.258568287 |
MAE | 0.00621024 | 0.00409312 | 0.011020721 | 0.00455153 | MAE | 0.007292325 | 0.007459333 | 0.015947167 | 0.007314213 | ||
MSE | 5.32E-05 | 2.96E-05 | 0.000157153 | 4.16E-05 | MSE | 0.000191644 | 0.000164718 | 0.000364617 | 0.00014681 | ||
RMSE | 0.007290758 | 0.005438351 | 0.012536085 | 0.006450916 | RMSE | 0.013843538 | 0.012834235 | 0.019094948 | 0.012116535 | ||
44 | RRSE | 10.21303368 | 0.800672352 | 18.11089516 | 5.121080399 | 44 | RRSE | 7.844963551 | 1.902891994 | 20.23511314 | 7.552832127 |
MAE | 0.006374944 | 0.004135238 | 0.010895703 | 0.004766957 | MAE | 0.007345116 | 0.007310798 | 0.015747491 | 0.007340153 | ||
MSE | 5.56E-05 | 2.83E-05 | 0.000153706 | 4.77E-05 | MSE | 0.000189333 | 0.000147766 | 0.000360335 | 0.000149164 | ||
RMSE | 0.007457202 | 0.005316389 | 0.012397833 | 0.006907908 | RMSE | 0.013759839 | 0.012155887 | 0.018982487 | 0.012213256 | ||
45 | RRSE | 10.45437813 | 0.651390254 | 19.24680138 | 5.191915035 | 45 | RRSE | 8.155870438 | 1.507307529 | 22.59509087 | 7.66785717 |
MAE | 0.006592077 | 0.003863183 | 0.011521724 | 0.004941925 | MAE | 0.007575543 | 0.007452206 | 0.017352792 | 0.007620564 | ||
MSE | 5.81E-05 | 2.68E-05 | 0.000168328 | 4.53E-05 | MSE | 0.000188691 | 0.000170676 | 0.000405739 | 0.000154215 | ||
RMSE | 0.007621816 | 0.005178796 | 0.012974112 | 0.006730032 | RMSE | 0.013736469 | 0.01306429 | 0.020142958 | 0.012418327 | ||
46 | RRSE | 10.61807728 | 1.233188391 | 19.46906662 | 5.218859673 | 46 | RRSE | 7.501655579 | 2.184672356 | 21.69430161 | 6.992140293 |
MAE | 0.006685753 | 0.003987074 | 0.011659158 | 0.005082067 | MAE | 0.007213502 | 0.007383095 | 0.016747108 | 0.007192067 | ||
MSE | 5.99E-05 | 2.96E-05 | 0.000176384 | 4.58E-05 | MSE | 0.000186151 | 0.000156935 | 0.000390109 | 0.000141276 | ||
RMSE | 0.007738289 | 0.005438189 | 0.013280966 | 0.006768197 | RMSE | 0.013643734 | 0.012527368 | 0.019751189 | 0.01188594 | ||
47 | RRSE | 9.759709358 | 0.827094018 | 16.87990952 | 4.776286602 | 47 | RRSE | 7.559007168 | 2.398530483 | 20.96367645 | 7.329694271 |
MAE | 0.006323101 | 0.004230344 | 0.010144193 | 0.004519139 | MAE | 0.007169228 | 0.007043203 | 0.01611859 | 0.007584359 | ||
MSE | 5.43E-05 | 3.37E-05 | 0.000139485 | 4.03E-05 | MSE | 0.000165541 | 0.000124824 | 0.000355144 | 0.000141277 | ||
RMSE | 0.007367926 | 0.005805864 | 0.011810397 | 0.006344758 | RMSE | 0.012866286 | 0.01117248 | 0.018845253 | 0.011885989 | ||
48 | RRSE | 10.06562519 | 1.142641068 | 17.21339226 | 5.197535992 | 48 | RRSE | 8.001426697 | 1.666833878 | 21.05992889 | 7.729929924 |
MAE | 0.006451075 | 0.004057381 | 0.010296236 | 0.004906729 | MAE | 0.007475972 | 0.007163189 | 0.01631864 | 0.007709148 | ||
MSE | 5.75E-05 | 3.09E-05 | 0.000145904 | 4.70E-05 | MSE | 0.000189832 | 0.000145353 | 0.000376599 | 0.000173954 | ||
RMSE | 0.00758173 | 0.00555834 | 0.012079089 | 0.006859277 | RMSE | 0.01377795 | 0.012056232 | 0.019406157 | 0.013189157 | ||
49 | RRSE | 9.89395237 | 1.163902521 | 19.32448006 | 4.780901432 | 49 | RRSE | 7.424761772 | 2.185619831 | 20.06874275 | 7.429775238 |
MAE | 0.006421661 | 0.003922783 | 0.011622668 | 0.004716931 | MAE | 0.006954729 | 0.007167548 | 0.01556653 | 0.007249736 | ||
MSE | 5.52E-05 | 2.94E-05 | 0.000170134 | 4.13E-05 | MSE | 0.000141296 | 0.000115186 | 0.000351289 | 0.000135532 | ||
RMSE | 0.007431708 | 0.00541775 | 0.013043545 | 0.006426529 | RMSE | 0.011886783 | 0.010732458 | 0.018742692 | 0.011641831 | ||
50 | RRSE | 10.33056927 | 1.113586426 | 19.15169334 | 5.128182888 | 50 | RRSE | 7.693232059 | 1.633349657 | 20.70928001 | 7.254265308 |
MAE | 0.006474213 | 0.003927531 | 0.011500327 | 0.004832438 | MAE | 0.007279074 | 0.007565951 | 0.016206015 | 0.007194425 | ||
MSE | 5.80E-05 | 2.80E-05 | 0.000168874 | 4.67E-05 | MSE | 0.000186376 | 0.000190344 | 0.000366936 | 0.000156744 | ||
RMSE | 0.007617989 | 0.005293685 | 0.01299517 | 0.006831192 | RMSE | 0.013651974 | 0.013796519 | 0.01915556 | 0.012519758 |
Rights and permissions
About this article
Cite this article
Ilten, E., Calgan, H. & Demirtas, M. Design of induction motor speed observer based on long short-term memory. Neural Comput & Applic 34, 18703–18723 (2022). https://doi.org/10.1007/s00521-022-07458-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00521-022-07458-0