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

    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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