电力系统自动化2017，Vol.41Issue(15)：51-57,7.DOI:10.7500/AEPS20161116008
计及负荷特性的配电网多时间尺度电压控制及协调修正
Multi-time Scale Voltage Control and Coordinated Correction for Distribution Networks Considering Load Characteristics
王志强 1郭晨阳 1刘文霞 1李春晖 2王佳伟2
作者信息
- 1. 华北电力大学电气与电子工程学院, 北京市 102206
- 2. 国网山西省电力公司经济技术研究院, 山西省太原市 030002
- 折叠
摘要
Abstract
A voltage coordinated control method for distribution networks considering load characteristics and photovoltaic (PV) reactive power cost is proposed in the market environment where huge amounts of PV power of the third party is connected to the distribution network.The method includes the day-ahead optimization and the day-here optimization.For the day-ahead optimization,the objective function is optimizing the loss and cost of the on-load tap changer (OLTC) and the shunt capacitor,moreover,optimizing the OLTC tap and shunt capacitors action plan in the next 24 h.For the day-here optimization,a cost model of PV reactive output is developed.The objective is optimizing the optimal loss and the PV reactive power cost.The influence of the prediction error will be eliminated by adjusting the PV reactive power output.And the correction of day-ahead optimization is added.Furthermore,in order to achieve a better effect in the areas with more industrial and commercial loads,the load static voltage characteristics are taken into consideration in the reactive output optimization.In addition,a power flow calculation model in consideration of load characteristics is developed to improve the optimization performance.The results of actual simulation show that the coordinated control method can better eliminate the influence of prediction error,while stabilizing the voltage fluctuation and reducing the cost of control.关键词
多时间尺度/负荷特性/光伏无功成本/电压控制/协调修正Key words
multi-time scale/load characteristic/photovoltaic reactive power cost/voltage control/coordinated correction引用本文复制引用
王志强,郭晨阳,刘文霞,李春晖,王佳伟..计及负荷特性的配电网多时间尺度电压控制及协调修正[J].电力系统自动化,2017,41(15):51-57,7.
