基于动态模式切换的分布式电源电压无功控制方案  

A DG Reactive Power Control Scheme Basing on Dynamic Mode Switching

作　　者：邹京希 曹敏 李维 刘浩文 刘东[2] Zou Jingxi;Cao Min;Li Wei;Liu Haowen;Liu Dong(Yunnan power grid co.Ltd electric power research institute,Kunming 650217,Yunna,China;Shanghai Jiaotong University,Shanghai,201100,China)

机构地区：[1]云南电网有限责任公司电力科学研究院,昆明650217 [2]上海交通大学电子信息与电气工程学院,上海闵行200240

出　　处：《云南电力技术》2020年第2期2-7,共6页Yunnan Electric Power

摘　　要：本文介绍了一种基于动态模式切换的分布式电源电压无功协调控制方案。该方案以电压和无功功率为判断条件,确定各个设备在不同状态下采用的具体控制模式;各个设备所起到的作用也将随系统状态改变而动态变化。该方法具有以下三种优势:1)最大化DG的无功功率储备;2)在正常操作条件下提供电压调节;3)最小化系统中的实际功率损耗。为验证其有效性,本文以12节点系统为算例在三种场景下对该协调控制方法进行测试。研究结果表明该方法可在保障实际功率损耗最小化和无功功率储备的最大化的前提下,实现电压状况的明显改善。A DG voltage reactive power coordination control scheme based on dynamic mode switching is introduced.The specific control mode and the role played by each device will change dynamically with the change of system state.Voltage and reactive power are constraints that are used to determine the control mode of each device.The main purpose of the method proposed in this paper is 1)to maximize the reactive power reserve of DG,2)to provide voltage regulation under normal operating conditions,and 3)to minimize the actual power loss in the system.In this paper,the method has tested in three cases using the study case of the 12-node system.The results show that this method can retain the improvement of voltage condition,the minimization of actual power loss and the maximization of reactive power reserve.

关 键 词：分布式发电 模式动态切换 电压无功优化 协调控制 

分 类 号：TM74[电气工程—电力系统及自动化]