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Research on Inhibition of Voltage Sag Based on STATCOM
Pages: 37-42
Year: Issue:  20
Journal: Electrical Measurement & Instrumentation

Keyword:  voltage sagimproved fault point methoddistributed allocationeconomic evaluation;
Abstract: With the increase of power-sensitive equipment and requirement on power quality,the voltage sag prob-lem has become an important part of power system research. While traditional methods apply STATCOM to the inhibi-tion of voltage sag,this paper proposes a new perspective. First,based on the improved fault point method and com-bined with the compensation principle of STATCOM,the grid voltage sag frequency of each bus is evaluated. Then the impact of STATCOM on the inhibition of grid voltage sag of other buses is analyzed,and the STATCOM distributed configuration is proposed. Finally,based on economic assessment of voltage sag of sensitive loads,the concept of opti-mal allocation for STATCOMs in distribution network is presented. The proposed theory is verified by standard IEEE-30 bus test system.
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