Research on Harmonic Suppression for Micro Grid-Side Inverter Based on Synthesis Harmonic Impedance

Xiang Ming Wang; Wen Ting Zhao

doi:10.4028/www.scientific.net/AMM.427-429.1036

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Research on Harmonic Suppression for Micro Grid-Side Inverter Based on Synthesis Harmonic Impedance
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WNN Model Based on Particle Swarm Optimization for Fault Diagnosis in Analog Circuit
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Research and Application Cases Analysis on the Key Technology in the Control Platform of the Internet of Things
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Research on Harmonic Suppression for Micro Grid-Side Inverter Based on Synthesis Harmonic Impedance

Abstract:

There exists harmonic interference problem when micro grid-side inverter connecting to grid with nonlinear load. The harmonic impedance loop is added in the voltage output loop to suppress harmonic in grid-side inverter. Using instantaneous reactive power theory to extract the main frequency harmonics, a new harmonic impedance is synthesized in the voltage control loop. The voltage control loop mainly presents the performance of resistive impedance and suppresses the harmonic interference while the inverter grid-connected. The Matlab/simulink simulation shows the method can effectively suppress the harmonic of grid.