Tertiary Control of Voltage Unbalance Compensation for Optimal Power Quality in Islanded Microgrids

被引:100
作者
Meng, Lexuan [1 ]
Tang, Fen [2 ]
Savaghebi, Mehdi [1 ]
Vasquez, Juan C. [1 ]
Guerrero, Josep M. [1 ]
机构
[1] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark
[2] Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China
关键词
Microgrid; multi-power-quality-level; tertiary control; voltage unbalance compensation; EVOLUTIONARY ALGORITHMS; CONTROL SCHEME; GENERATION; UNIVERSAL; FILTER;
D O I
10.1109/TEC.2014.2363687
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
In multibus islanded microgrids, the power quality requirements for different areas and buses can be different. This paper proposes a hierarchical control to realize optimal unbalance compensation for satisfying the power quality requirements in different areas. Primary and secondary controllers are applied to realize unbalance compensation for critical bus, and at the same time, to make distributed generators (DGs) equally share the compensation efforts. Tertiary control, which inherently is an optimization method, is implemented to adjust the compensating effort of each DG considering the voltage unbalance limits in local buses and DG terminals. This method realizes multipower-quality-level control in a multibus islanded system by optimally utilizing DGs as distributed compensators and saves the investment for additional compensation equipment. Hardware-in-the-loop results demonstrate the effectiveness of the method.
引用
收藏
页码:802 / 815
页数:14
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