【摘要】 伴随跨区互联电网发展,电力系统规模不断扩大,动态稳定水平成为大系统运行中愈来愈受关注的稳定问题。基于从2007年到2009年华中电网WAMS(广域测量系统)记录,分析了华中电网功率振荡特别是川渝-河南模式振荡特点变化,从中得出系统动态特性发展变化的分析结论,并用调度运行部门广泛使用的计算程序——电力系统分析综合程序(PSASP6.26)对分析结论进行了验证,对于利用WAMS把握电网运行特性和规律具有一定促进作用。更多还原

【Abstract】 With the development of power system,the scale of power system has been more and more huge. At the same time,dynamic stability becomes one of the most important stability problems. The paper draws some dynamic stability changes obtained by the WAMS’ record. And the paper uses PSASP to simulate and prove the change.更多还原