Algorithm for power flow of electric traction network based on equivalent circuit of AT-fed system

作者：He Zhengyou^*; Fang Lei; Guo Dong; Yang Jianwei

来源：Journal of Southwest Jiaotong University, 2008, 43(1): 1-7.

• Leakage impedance
• Power flow
• Traction network

An improved algorithm based on equivalent circuit of autotransformer-fed (AT-fed) systems was proposed to calculate power flows of electric traction networks. In the proposed algorithm, locomotives are treated as a constant power model, and the leakage impedance of ATs is considered. Power flows when there are multiple trains are calculated by the principle of superposition and iteration. The influence of leakage impedance ATs on the performances of electric traction networks can be simulated with the proposed algorithm. Results of simulation show that the algorithm converges after about 5 iterations for single train, and about 10 iterations for 4 trains; it can solve the power flow problem of AT-fed efficiently regardless of the number and positions of trains; and it is more accurate than the commonly used algorithms based on equivalent circuit of AT-fed system.

• 出版日期2008
• 单位西南交通大学