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Comparison and selection of high-voltage large-capacity D-STATCOM main circuit

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3 Author(s)
Zhen-yu Yang ; Substation Operation Center, Changzhou Power Supply Company, 213003, China ; Sheng Xu ; Xing-tao Xu

In view of analysis and comparison of present high-voltage large-capacity D-STATCOM circuit structure, especially advantages and disadvantages of Δ-cascaded structure and Y-cascaded structure, then it proposes and describes a Y-cascaded structure, the link of which is composed of two back-to-back H converters. Current compensation algorithm based on coordinate αβ conversion, fault links bypass tolerance, and its correlative CPS-SPWM are proposed respectively, the experimental results of 1.14kV/100kVA prototype testify the validity and the effectivity of the proposed structure and algorithm.

Published in:

CICED 2010 Proceedings

Date of Conference:

13-16 Sept. 2010