Nonlinear control for VSC based HVDC system

被引：0
|
作者：
Chen, Hairong [1 ]
Xu, Zheng [1 ]
Zhang, Fan [1 ]
机构：
[1] Zhejiang Univ, Dept Elect Engn, Hangzhou 310027, Peoples R China
来源：
2006 POWER ENGINEERING SOCIETY GENERAL MEETING, VOLS 1-9 | 2006年
基金：
中国国家自然科学基金;
关键词：
voltage source converter (VSC); HVDC; exact linearization via feedback; nonlinear control; phase lock loop (PLL); PSCAD/EMTDC;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Voltage source converter (VSC) based HVDC is a multivariable, strongly coupled nonlinear system. It is quite difficult to establish the precise mathematic model of the VSC. This paper adopts the theory of the nonlinear transformation and the feedback linearization of nonlinear system, establishes the nonlinear mathematic model of the VSC in d-q synchronous reference frame. The decoupled control strategy with state variable feedback linearization, which is combined with the optical control theory, is proposed in this paper. And with this strategy the active and reactive power can be controlled independently. Simulation results realized by PSCAD/EMTDC show that the designed control system has better control performance.
引用
收藏
页码：1494 / +
页数：2
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