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Dual feedback active damping method for grid-connected LCL filter resonance | IEEE Conference Publication | IEEE Xplore

Dual feedback active damping method for grid-connected LCL filter resonance


Abstract:

This paper proposes a new active damping method for LCL filter resonance. The proposed method employs a dual feedback loop of the capacitor voltage and the grid current. ...Show More

Abstract:

This paper proposes a new active damping method for LCL filter resonance. The proposed method employs a dual feedback loop of the capacitor voltage and the grid current. Based on the proposed method, non-minimum phase behavior can be avoided over a wide range of resonant frequencies. Co-design procedures for both the active damping loops along with the fundamental current regulator are introduced. The proposed method is derived in continuous time domain as well as discussed in discrete form for digital implementation. The performance of the proposed method is verified numerically at different values of resonant frequency. Moreover, simulation work is presented to confirm the numerical results.
Date of Conference: 09-12 November 2015
Date Added to IEEE Xplore: 28 January 2016
ISBN Information:
Conference Location: Yokohama, Japan

References

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