基于典型区域法的城市配电网无功配置研究

Research on Reactive Allocation of Urban Distribution Network Based on Typical Region Application

目前,山东省高压配网变电站设计主要参照国家电网公司通用设计方案,但随着城市电网电缆率的提高,变电站无功补偿设计应考虑电缆充电功率的影响。本文通过对110k V、35k V变压器及10k V线路无功损耗及无功补偿理论研究,提出针对中心城区、近郊地区和郊区三类典型区域的无功配置方案。该方案可推广至城市高压配电网的同类区域,得出整个城市电网的无功配置方案。该方案对于城市高压配电网变电站无功补偿设计具有推广意义。

At present,the design of Shandong high-voltage distribution network substation mainly refers to the general design scheme of State Grid Corporation of China,however with the increase in urban power network and cable rate, the reactive compensation design of the substation should consider the impact of cable charging power.Based on the theoretical study on ll0kV and 35kV transformers,10kV line reactive loss and reactive compensation, this thesis proposes reactive allocation scheme directed against three types of typical regions of central city, semi-urban area and suburbs.The scheme may be popularized to similar regions to urban high voltage distribution network,and draw the reactive allocation scheme of the entire urban power network. Besides,the scheme has promoting significance for reactive compensation design of urban high voltage distribution network substation.