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| Power System Static Security Analysis With Time Process-Oriented Method |
| Yu Jiaxi1, Guo Zhizhong2, Bai Xuefeng2, Liu Ruiye2 |
| 1.Hainan Power Grid Company Haikou 570203 China 2. Harbin Institute of Technology Harbin 150001 China |
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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.
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Received: 26 December 2007
Published: 04 March 2014
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| Fund:This work was supported by research fund for the doctoral program of higher education (RFDP) (20060213042). |
| About author:: Yu Jiaxi male, was born in 1980, engineer, his research interests focus on power system security analysis and control. Guo Zhizhong male, was born in 1961, professor, his research interests include power system security analysis, power markets, optical current transformer, etc |
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2010, Vol. 25 
