基于SSSC的特征结构分析法判别电压稳定性  

Eigenvalue Structure Analysis Methods for Voltage Stability of Power System with SSSC Devices

作　　者：秦砺寒[1] 宁琳[2] 吴杰康[3] 郭壮志[3] 盛文阁[4] 

机构地区：[1]华北电力科学研究院有限责任公司,北京100045 [2]北京超高压公司,北京100045 [3]广西大学广西壮族自治区,南宁530004 [4]合肥供电公司,安徽合肥230001

出　　处：《电气开关》2009年第3期15-19,22,共6页Electric Switchgear

基　　金：国家自然科学基金项目(50767001);国家863高技术基金项目(2007AA04Z100);广西自然科学基金项目(桂科自0640028);广西高校百名中青年学科带头人资助计划项目(RC20060808002);广西壮族自治区研究生教育创新计划项目(20070808M32)

摘　　要：详细推导了系统中加入SSSC模型后的潮流方程。利用特征结构分析法,深入分析了在负荷平均增长和最灵敏节点负荷增长两种情况下,SSSC对电力系统电压稳定性的影响。确定系统最薄弱节点和负荷增长最快节点的方式。论证了在系统最薄弱节点和负荷增长最灵敏节点线路中加入SSSC后能对提高系统的电压水平和电压稳定性起到良好的改善作用。对IEEE14节点系统进行了仿真计算,验证了所构建的SSSC混合模型的可行性、有效性和适用性。This paper uses a power injection model of SSSC for power flow genvalue structure analysis （ESA） method, the effect of SSSC and its model under some conditions, such as proportionally loading at all nodes, or loading and voltage stability analysis. Based on ei- on power system voltage stability is studied only at the most sensitive node to the voltage. This paper takes IEEE14 -bus system for example,the influence of the minimum eigenvalues is analyzed while the loads are increased in average, then the weak region and the weakest bus in the power system are determined. Calculation example shows that it will be effective for the improvement of system voltage level and voltage stability as well as the improvement of the weakest bus while the SSSC is located at the determined weakest bus.

关 键 词：电力系统电压稳定性 SSSC混合模型 特征结构法 

分 类 号：TM712[电气工程—电力系统及自动化]