Decentralized coordinated control for large power system based on transient stability assessment

作者：Dou, Chun-Xia^*; Yang, Jinzhao; Li, Xiaogang; Gui, Ting; Bi, Yefei

来源：International Journal of Electrical Power & Energy Systems, 2013, 46: 153-162.

DOI：10.1016/j.ijepes.2012.10.035

• Power system
• Decentralized coordinated control
• Transient stability assessment
• Modified equal area criterion
• H-infinity robust control

For the purpose of enhancing transient stability of large power systems, this paper focuses on an issue of decentralized coordinated control. A modified equal area criterion (MEAC) is firstly proposed as the transient stability judgment criterion of multi-machine power systems. Then, a hierarchical decentralized coordinated excitation control is designed, which consists of both upper level coordinated control and lower level decentralized control. Based on the transient stability assessment, the coordinated controller determines whether to send coordinated control signal to lower level decentralized controllers. Moreover, the decentralized coordinated controller is designed by using Ho robust control method so as to deal with the uncertainties of system. Finally, simulation studies test effectiveness of the proposed control.

• 出版日期2013-3
• 单位中国科学院电工研究所; 燕山大学