Research on the Control Strategy of Unbalanced Three-phase Three-wire Micro-grid

被引：0
|
作者：
Li, Changyun [1 ]
Duan, Yubing
Zang, Jiayi [1 ]
Zhang, Wei [1 ]
机构：
[1] Shandong Polytech Univ, Dept Elect Engn, Jinan, Shandong, Peoples R China
来源：
2012 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC) | 2012年
关键词：
micro-grid; three-phase unbalanced condition; VSC; adaptive discrete variable structure SMC;
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：
The three-phase unbalanced conditions of microgrid will affect the control performance, so it is required to study the control of asymmetric systems. In this paper, based on three-phase unbalanced micro-grid system, connected with three-phase three-wire voltage source converter (VSC), the effect of asymmetric conditions on the VSC current control was studied. With the application of adaptive discrete variable structure sliding mode control (SMC) method, the micro-source VSC model of the alpha-beta domain was established, and a new strategy of micro-source VSC inner current decoupling control was put forward to. This method can eliminate the micro-power three-phase current conditions of asymmetric coupling effect on the output current control, and it helps to improve the micro-power VSC current tracking performance. Simulation results verified the validity of this method.
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页数：4
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