静态电压稳定分析在南方电网应用研究  

Study on the Application of Static Voltage Stability Analysis in China Southern Power Grid

作　　者：陈刚 李鹏 门锟 梅勇 王德付 邓秋荃 赵勇 江轶 

机构地区：[1]南方电网科学研究院,广州510080 [2]南方电网电力调度控制中心,广州510000 [3]广西电网电力调度控制中心,南宁530023 [4]北京清软创新科技有限公司,北京100031

出　　处：《南方电网技术》2013年第2期16-20,共5页Southern Power System Technology

摘　　要：对南方电网提出静态电压稳定分析三种应用方式,即地区电网静态电压稳定分析、交流断面靜稳极限功率计算和低压减载校核计算,并用时域仿真验证校核对了计算结果。第一种方式是最基本应用方式,采用连续潮流方法可得到P-V曲线,从而得到各区域负荷有功功率裕度以及静态电压稳定储备系数,利用模态分析可给出电压薄弱厂站母线。在第二种应用方式中,通过增减交流断面两侧的发电出力,并考虑断面可能的"N-1""N-2"故障,可以从静态电压稳定计算得到断面的极限功率。对于第三种方式,以玉林地区"N–2"故障为例进行了低压减载策略校核计算,可求取最小切负荷量。Three kinds of applications are presented for China Southern Power Grid （CSG） in this paper, i.e. analysis of static voltage in local grid, calculation of AC interface maximum transfer power and strategy-checking calculation of undervoltage load shedding, and for these applications the calculation results are verified by time-domain simulation. The first kind is a main application, and in the analysis the P-V curves can be traced by using continuation power flow method, and thus the regional load active power margin and static voltage stability reserve factor can be obtained and the voltage weak buses are detected with modal analysis. In the second kind of application, by regulating the power generation in two sides of the interface and considering N-1/N-2 contingencies on interface, the limit power of the interface can be calculated. As to the third kind, taking the Yulin network with N-2 contingency as an example, the strategy checking calculation of undervoltage load shedding is carried out, resulting in the maximum shedding load.

关 键 词：静态电压稳定评估 连续潮流法 P-V曲线 区域有功功率裕度 静态极限功率 模态分析. 

分 类 号：TM712[电气工程—电力系统及自动化]