Research on Harmonic Suppression Technology of new energy 
microgrid based on hybrid fi lter

Rui Dai

doi:10.18686/modern-management-forum.v7i4.7982

Research on Harmonic Suppression Technology of new energy microgrid based on hybrid fi lter

Rui Dai

Abstract

Harmonic pollution and overshoot caused by the use of nonlinear load in microgrid. In order to solve this problem, the
causes are analyzed and the suppression strategy is proposed. The method based on super-twisting sliding mode control algorithm combined
with active and passive filter is adopted. The traditional PI controller is replaced by super-twisting sliding mode control. Through the
SIMULINK simulation software in MATLAB, the voltage, FFT and THD waveforms of the method of combining super-twisting sliding
mode control algorithm with active plus passive fi lter and the method of combining PI controller with active plus passive fi lter are compared
and analyzed. The simulation results show that the method of combining the super-twisting sliding mode control algorithm with the active
and passive fi lter reduces the harmonics in the microgrid, improves the robustness, and is not easy to cause overshoot in the control process,
which ensures the continuity and stability of the microgrid grid connection.

Keywords

Microgrid; Harmonic suppression; Sliding mode control

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DOI: http://dx.doi.org/10.18686/modern-management-forum.v7i4.7982

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