The paper compares the power system transmission limit, which obtained by Eurostag time-domain simulation and BPA power-flow calculation, and analyzes the results to research the influential factors of transmission limit.

• 用电力系统中长期动态仿真软件Eurostag进行时域仿真，将时域仿真确定的系统功率传输极限与BPA潮流计算的功率传输极限进行比较，分析两种方法获得的功率极限结果，比较、分析、研究影响功率极限的因素。