Title

A Dynamic Hybrid Var Compensator and a Two-Level Collaborative Optimization Compensation Method

Authors

Authors

Z. K. Shuai; A. Luo; Z. J. Shen; W. J. Zhu; Z. P. Lv;C. P. Wu

Comments

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Abbreviated Journal Title

IEEE Trans. Power Electron.

Keywords

Collaborative optimization method; distribution static compensator; dynamic var compensator; expert judgment; low cost; thyristor switched; capacitor (TSC); CONVERTER-BASED STATCOM; DISTRIBUTION-SYSTEMS; POWER-SYSTEM; SVC; CONTROLLERS; FACTS; DC; Engineering, Electrical & Electronic

Abstract

In this paper, a dynamic hybrid var compensator (HVC) for distribution grid is proposed. The system is based on a combination of a small-capacity distribution static compensator (DSTATCOM) and multigroup large-capacity thyristor switched capacitor (TSC). The DSTATCOM is the continuous subsystem of HVC, and the TSCs are the discrete subsystem of HVC. A new hybrid control method based on expert decision has been proposed to make sure that the HVC has good performance. A two-level collaborative optimization arithmetic, which is used to decide the optimal capacity of each HVC, has been proposed in this paper. A dynamic energy-saving system based on HVCs has been developed for a melt factory in southern China; application results show that compared to traditional reactive power compensation systems, the proposed system can effectively correct power factor, support supply voltage, mitigate voltage flicker, and obtain good effect for energy saving with low cost.

Journal Title

Ieee Transactions on Power Electronics

Volume

24

Issue/Number

9

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

2091

Last Page

2100

WOS Identifier

WOS:000269551600002

ISSN

0885-8993

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