摘要
现实电网中PMU的配置不能使系统完全可观,提出了基于SCADA/PMU混合量测的系统电压实时监测方法。通过PQ分解法推导了节点间的电压变化关联形式,利用通过虚拟量测技术形成的混合量测系统修正Jacobi矩阵,确定关联方程参数,以PMU节点群为基准预估全网节点电压。仿真实验结果表明,该方法有效地解决了目前电网PMU配置不足情况下各点电压实时观测以及动态过程的监视。
A hybrid SCADA/PMU system for real-time voltage monitoring is proposed for PMU configuration in real power grid can not make the system visible.Firstly,the voltage of different buses is derived by PQ decomposition.Then Jacobi matrix is modified though the hybrid measurement system formed by virtual measurement technology.Finally,parameters in the variation functions are calculated,in which it means all the buses in the system can be estimated with the PMU-node cluster.Simulation results reveal that the proposed method is effective to solve the real-time and dynamic process monitoring of voltage in the current power system.
出处
《华东电力》
北大核心
2011年第2期226-230,共5页
East China Electric Power
基金
国家自然科学基金项目(50977059)~~
