Simulation of Self-excitation for Power System Based on Precise Integration Algorithm
Xiaopeng Huang · Proceedings of the Chinese Society of Universities for Electric Power System and its Automation · 2008
Precise integration algorithm is a method which can be used to solve differential equations precisely.Using this method,traditional difference scheme is abandoned.Based on the model for self-excitation of synchronous generator and the idea of precise integration algorithm,a concise format of precise integration for fast simulation of the self-excitation is presented in this paper with the saturation characteristic of magnetic circuit of generators taken into consideration.The transient simulation of self-excitation shows that precise integration algorithm has high computing precision and robustness compared with the implicit trapezoid method,furthermore,the simulation speed can be accelerated by increasing the simulation step.