Enhancement of continuous operation performance of HVDC with self-commutated converter

被引：7

作者：

Gibo, N ^{[1
]}

Takenaka, K

Takasaki, M

Hayashi, T

Konishi, H

Tanaka, S

Ito, H

机构：

[1] Hitachi Ltd, Tokyo, Japan

[2] Hitachi NE Ltd, Tokyo, Japan

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2000年 / 15卷 / 02期

关键词：

self-commutated converter; continuous operation performance; HVDC;

D O I：

10.1109/59.867140

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 describes a converter control scheme to enhance continuous operation performance of HVDC system with voltage source type self commutated (SC) converter. The continuous operation of SC converter can be achieved by suppressing converter overcurrents and AC overvoltages in the case of AC line faults including phase failure. Development of a new control scheme has been accomplished by experimental using an AC/DC Power System Simulator in CRIEPI and the EMTP (Electro Magnetic Transients Program) analysis. At first, we show that converter overcurrents and AC overvoltages are caused by lack of control information to static limitter and insufficient control performance to negative-sequence current of SC converter. Next, an adequate converter control scheme is proposed which is composed of ACR's (Automatic Current Regulator) adjustable dynamic limitter to the suppress converter overcurrents, and the limit logic of SC converter to suppress AC overvoltages during phase failure.

引用

页码：552 / 558

页数：7