Structure and parameters design of output LC filter in D-STATCOM

This paper proposes a novel and practical method to design the parameters of LC filter in distribution STATCOM. The filter parameters are mainly determined by four factors: the resonant frequency, the harmonic distortion rate, inductance fundamental voltage drop, and the reactive power compensation...

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Bibliographic Details
Main Authors: Cunping Wang, Xianggen Yin, Minghao Wen, Jian Liu, Qing Xiong, Bin Zhang
Format: Conference Proceeding
Language:English
Subjects:
Automatic voltage control
harmonic distortion rate
Indexes
inductance fundamental voltage drop
MATLAB
output LC filter
power loss
reactive power compensation ability
STATCOM
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Summary:This paper proposes a novel and practical method to design the parameters of LC filter in distribution STATCOM. The filter parameters are mainly determined by four factors: the resonant frequency, the harmonic distortion rate, inductance fundamental voltage drop, and the reactive power compensation ability. The proposed method in this paper is that selecting larger filter inductance and capacitance on condition that the inductance fundamental voltage drop does not exceed about 20% of the system voltage and that the fundamental current flowing through the capacitance is not more than about 5% of the STATCOM rated output current in order to get a better filtering effect. In addition, this paper points out that connecting a small inductance in parallel with the damping resistance will not only greatly reduce the power loss, but also be good for the filtering effect. Simulation results show that the designed filter structure and parameters have good effects.
DOI:10.1109/POWERCON.2010.5666674