A transformer-less static synchronous compensator employing a multi-level inverter

被引：30

作者：

Hochgraf, C

Lasseter, RH

机构：

[1] Electrical and Computer Engineering, Department University of Wisconsin-Madison, Madison

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1997年 / 12卷 / 02期

关键词：

D O I：

10.1109/61.584408

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper examines the application of a high voltage multi-level inverter in a 13.8 kV distribution system Static Synchronous Compensator SSC. Equations are developed for the component MVA of the multi-level inverter. Trend in component MVA as a function of the number of inverter voltage levels and the modulation strategy are identified. Control of the dc bus capacitor voltages during phase voltage imbalance is identified as a problem. A method is described whereby the multi-level inverter's dc bus capacitor voltages are actively controlled without using additional power components. The operation of the capacitor voltage control loop is demonstrated through EMTP simulations of an SSC responding to single phase and three phase load variations in a model distribution system.

引用

页码：881 / 887

页数：7

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