摘要
暂态稳定分析在电力系统规划和运行分析中占有重要位置,其目的在于确定系统在给定的大扰动下发电机能否继续保持同步运行。暂态稳定分析最实用的方法是时域仿真方法。在理论分析的基础上,采用二阶R-K算法求解算例,对功角δ进行数值计算,画出时域波形,讨论极限切除角和极限切除时间。最后用等面积法则证明了时域仿真的正确性,并从切除时间角度讨论了几种短路类型对暂态稳定的影响程度。
Transient stability analysis occupies an impor- tant position in the power system planning and operation analy- sis, which aims to determine whether the system can continue to maintain synchronous operation under the large disturbance. Time-domain simulation method is the most practical method of transient stability analysis. Based on the theoretical analysis, second order R-K algorithm is adopted to solve the calculation example and numerical calculation is done for the power angle 8. The time-domain waveform is drawn in this paper. Then the critical cleating time and the critical clearing angle are dis- cussed. At last, the equal area criterion is adopted to prove the correctness of the time-domain simulation. In addition, the severity of several short-circuit type is discussed.
出处
《电力学报》
2013年第1期17-21,27,共6页
Journal of Electric Power
关键词
暂态稳定
R—K算法
等面积法则
极限切除时间
transient stability
R-K algorithm
equal area criterion
critical clearing time
