Variable Step Integration Method on Power System Transient Simulation with Multiple Switching Events
Zhao Shuai1, Jia Hongjie1, Li Jianshe2, Su Yinshen2, Li Peng1, Kong Xiangyu1, Yao Dequan1
1. Key Laboratory of Smart Grid of Ministry of Education Tianjin University Tianjin 300072 China; 2. CSG Power Dispatching and Control Center Guangzhou 510623 China
Abstract：Numerical oscillation problem and multiple switching events in power system electromagnetic transient simulation with power electronic devices are discussed in this paper. And then a variable step integration method considering multiple switching events is proposed, based on backward Euler method. In this method, linear interpolation is to change the switch state, and the variable step backward Euler method is used to the numerical integration. There are several advantages of the proposed algorithm, including effective treatment to multiple switches, significant inhibition to numerical oscillation, and favorable adaptability to step size. The effectiveness and efficiency of the algorithm are studied on typical power electronic rectifier circuit and simplified high voltage direct current transmission system, and the validity is also proved compared with the simulations by PSCAD.
赵, 帅, 贾宏杰, 李建设, 苏寅生, 李, 鹏, 孔祥玉, 姚德全. 一种考虑多重开关动作的变步长电磁暂态仿真算法[J]. 电工技术学报, 2016, 31(12): 177-183.
Zhao Shuai, Jia Hongjie, Li Jianshe, Su Yinshen, Li Peng, Kong Xiangyu, Yao Dequan. Variable Step Integration Method on Power System Transient Simulation with Multiple Switching Events. Transactions of China Electrotechnical Society, 2016, 31(12): 177-183.
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