基于相量测量的等效电流量测变换状态估计的研究  

Research on the Estimation of Conversion State of Equivalent Current Test based on Phasor Measurement

作　　者：杨武[1] 苏琳[1] 

机构地区：[1]西南交通大学电气工程学院,成都610031

出　　处：《电子质量》2006年第3期7-11,共5页Electronics Quality

摘　　要：针对同步相量测量单元(PMU)测量的特点,分析了引入PMU测量值对电力系统状态估计的影响,引入PMU量测信息的状态估计模型。在该等效电流量测变换状态估计模型的基础上引入旋转变换,不需对电压的相角和幅值及有功和无功的量测权重作出任何假设,即可实现方程的实、虚部严格解耦。同时,该方法可以充分利用PMU的信息,包括支路电流相量量测,并且所需的存储量较小、计算速度较快和计算精度高,具有较好的工程应用前景。Aimed at the features of PMU, the authors of this essay analyze the influence of PMU on the estimation of power system state and the relevant state estimation pattern by adopting PMU. The equation can be decoupled strictly by adopting rotating conversion based on the estimation of conversion state of equivalent current test without hypothesis on the phase angle and magnitude of voltage and the other functions of test factors. Furthermore, this method can make full use of PMU information , include phasor measurement of branch current, and require smaller memory space, calculate fast with hiah accuracy. So it has a DrosDective future in engineering application.

关 键 词：电力系统 状态估计 相量测量单元 等效电流量测变换算法 旋转变换 

分 类 号：TM933.1[电气工程—电力电子与电力传动]