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《Automation of Electric Power Systems》 2003-08
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DESIGN FOR GLOBAL OPTIMAL VOLTAGE CONTROL SYSTEM BASED ON SOFT IDENTIFICATION OF SECONDARY CONTROL ZONES

Sun Hongbin 1, Zhang Boming 1, Guo Qinglai 1, Yang Zhixin 2, Wang Xiaoying 2, Li Haifeng 2 (1. Tsinghua University, Beijing 100084, China) (2. Jiangsu Electrical Power Dispatching Center, Nanjing 210024, China)  
The voltage quality of power grid becomes more and more serious in China. It's urgent to develop global optimal voltage control system for energy control centers. In this paper, adopting the successful experiences of several power companies in Europe (such as EDF, RWE and etc), the design is done for practical global optimal voltage control system, which is based on energy management system and more fit for implementation in China. In the paper, a new idea of three hierarchical control structure based on soft identification of secondary control zones is presented. In the new structure, no hard secondary controller is needed, and both the secondary and tertiary controllers are implemented by software in the same control center. With different time constants and control zone division, the voltage control is decoupled, and the multi-objectives about economy, quality and security are coordinated here. Some important problems about implementation are discussed. Such new control structure will be applied to the power system of Jiangsu Province in China. This project is supported by National Key Basic Research Special Fund of China (No. G1998020322) and National Natural Science Foundation of China (No. 50107005).
【Fund】: 国家重点基础研究专项经费资助项目 (G19980 2 0 3 2 2 );; 国家自然科学基金资助项目 (5 0 10 70 0 5 )
【CateGory Index】: TM761
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