Abstract
A quasi-continuous-time approach to the design of a digital PID control for DC/AC inverters with LC filter that use semiconductor switches producing PWM output voltage is presented. It is shown that an appropriately chosen continuous-time model of the digital controller with the PWM converter behaves like the actual discrete-time system, which allows for a simple controller design. SIMULINK models are used to validate this approach for a nonlinear rectifier load. The outcomes are compared with a real inverter experiment.
Supported by the Polish National Centre for Research and Development, grant TANGO3/427467/NCBR/2019, and Polish Ministry of Science and Higher Education, grant no. 02/010/BK-19/0143.
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Błachuta, M., Rymarski, Z., Bieda, R., Bernacki, K., Grygiel, R. (2020). Continuous-Time Approach to Discrete-Time PID Control for UPS Inverters - A Case Study. In: Nguyen, N., Jearanaitanakij, K., Selamat, A., Trawiński, B., Chittayasothorn, S. (eds) Intelligent Information and Database Systems. ACIIDS 2020. Lecture Notes in Computer Science(), vol 12033. Springer, Cham. https://doi.org/10.1007/978-3-030-41964-6_15
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