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《Automation of Electric Power Systems》 2006-02
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Functions and Algorithms in Real-time Active Power Dispatching System Applied to Henan Grid

ZHOU Jie-ying , ZHANG Bo-ming , SHANG Jin-cheng , HE Nan-qiang , YAO Jia , FAN Dou , CHENG Man , WANG Dan , LI Yu-zhou , LIU Ming-song Tsinghua University, Beijing 100084, China Henan Electric Power Company, Zhengzhou 450052, China  
Real-time active power dispatching system is designed for on-line monitoring and automatic adjusting of generation and transmission flow. In order to coordinate security and economy, the functions in the system are divided into two modules: spot balancing trading module and real-time security management module. The former module matches generation with demand periodically subject to security constraints, while the later module deals with exceptional network events, such as congestion and generation outages. In spot balancing trading module, the incremental power flow model is adopted for its robustness. A new load-balanced sensitivity is used to improve original sensitivity, which makes the incremental power flow independent of the location of the slack bus. The merit-order-based method is used to solve the spot balancing trading model, which not only ensures economy and security, but also makes power market fair and transparent. This model is modified slightly to fit into congestion management, and then solved by synchronous conjugated adjustment method. The operation practice of the system applied in Henan power grid shows that the models and the algorithms are effective and practical.
【CateGory Index】: TM734
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