Newton method with variable step size for power system transient stability simulation

作者：Wu, Hong Bin^*; Ding, Ming

来源：Proceedings of the CSEE, 2010, 30(7): 36-41.

• Critical clearing time
• Fault durations
• Local truncation errors
• Power system transient stability
• Simulation speed
• Time-domain simulations
• Variable step size
• Very dishonest newton methods

A very dishonest Newton method (VDHN) with variable step size for power system transient stability simulation was presented. According to the saliency of generation, it simplified the voltage calculation during the iteration. The Jacobian matrices were kept constant over several time steps to speed up the calculations. With the local truncation error theory, the variable step size technology was applied to the VDHN method. For improving the simulation speed and precision more, the modified strategies for the variable step size were also provided. With two power systems, it verified the validity and practicability of the VDHN algorithm with the simulation speed, the critical clearing time, the variable step size and voltage value. The simulation results indicate that the proposed VDHN method with variable step size can improve the simulation speed, which is relevant to the fault duration.

• 出版日期2010
• 单位合肥工业大学