Abstract：The traditional static security analysis based on the data of one time section can not adapt to the continuous state changing of power system appropriately. To improve the deficiency, a time process-oriented static security analysis method is presented in the paper. Firstly, the basic idea of time process-oriented method is explained. Secondly, with the abundant measurements and load forecasting information, the characteristic vector of each time section is extracted. Then the load curve is partitioned into several time sub-processes by the improved K-means clustering algorithm considering the successive time series of power load. Thirdly, the indices extracting the maximum and minimum characteristic sections of every time sub-process are defined. Then the representativeness of the characteristic sections is verified. While ensuring the static security, the time process-oriented method can improve the utilization rate of transmission lines to some extent. Finally, the calculation and analysis of IEEE 30-bus system shows the effectiveness of the method proposed in the paper.
余加喜, 郭志忠, 白雪峰, 刘瑞叶. 基于面向时间过程的静态安全分析[J]. 电工技术学报, 2010, 25(10): 142-149.
Yu Jiaxi, Guo Zhizhong, Bai Xuefeng, Liu Ruiye. Power System Static Security Analysis With Time Process-Oriented Method. Transactions of China Electrotechnical Society, 2010, 25(10): 142-149.
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