强联系电网失步解列判据的分析与选择
付慧敏;顾丹珍;崔勇;郭强
【期刊名称】《华东电力》 【年(卷),期】2012(040)012
【摘要】在通过多回联络通道形成强联系的大规模电网中,当系统发生失步振荡时,振荡中心不一定是落在一条联络线路上,而是落在一个失步断面上。在对基于本地量判据ucosφ失步解列判据和视在阻抗角失步解列判据研究分析的基础上,对两种判据的比较,选择基于系统失步断面的失步解列判据,更能适应强联系电网稳定运行的要求,算例仿真验证了所选择判据的正确性。%The strong large-scale grid is constituted through multi-back contact channels.In case of the system out-of-step oscillation,the oscillation center may fail to fall on the same contact line,but on a mis-step cross section.On the basis of comparative analysis of out-of-step splitting criterion and apparent impedance angle criterion,the out-of-step splitting criterion based on the system out-of-step sections is selected in order to meet better the stable operation requirements of strong grid.The correctness of the selected criterion has been verified in simulation. 【总页数】5页(2156-2160)
【关键词】失步振荡;视在阻抗角判据;失步解列判据;电压;功率 【作者】付慧敏;顾丹珍;崔勇;郭强
【作者单位】上海电力学院,上海200090;上海电力学院,上海200090;华东电力试验研究院有限公司,上海200437;上海电力学院,上海200090
强联系电网失步解列判据的分析与选择
