高压输电网供电均衡性实时监测仿真研究

摘要

对高压输电网供电均衡性的监测,能够有效提高输电网供电稳定性.对输电网供电均衡性的实时监测,需要建立隶属度函数,获取异构数据监测的最优方案,完成高压输电网供电均衡性的实时监测.传统方法首先批量处理输电网线路状态监测数据流,判定线路差异化数据,但忽略了获取监测最优方案,导致监测精度偏低.提出小波包时间熵的高压输电网供电均衡性实时监测方法.对采集的高压输电网线路数据进行归一化处理,分析小波包时间熵不同运行状态的表征机理,提取线路运行状态的特征量,采用隶属度函数挖掘模型进行求解,获取异构数据实时监测的最优方案,组建监测模型.实验结果表明,所提方法能够正确辨别高压输电网线路运行状态,且数据实时处理效率高.%This paper focuses on a real-time monitoring method for supply electricity equilibrium of HV transmission network based on time entropy of wavelet packet.First of all,this method normalized route data of HV transmission network,and then analyzed characterization mechanism of time entropy of wavelet packet under different running states and extracted feature quantities of route running state.At last,this method used mining model of membership degree function to solve it,thus obtained optimal scheme for real-time monitoring of heterogeneous data and built monitoring model.The simulation results demonstrate that the method in this paper can correctly distinguish route running state of HV transmission network and has high treatment efficiency for real-time data.