基于一阶灵敏度的有源配电网无功补偿改进方案  

Improved reactive power compensation scheme based on the first-order sensitivity for active distribution network

作　　者：王亚梅 张存山[1] 彭克[1] 赵学深[1] WANG Yamei;Zhang Cunshan;Peng Ke;ZHAO Xueshen(School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo)

机构地区：[1]山东理工大学电气与电子工程学院,山东淄博255049

出　　处：《山东理工大学学报（自然科学版）》2018年第2期12-16,20,共6页Journal of Shandong University of Technology:Natural Science Edition

摘　　要：有源配电网的无功补偿对于提高系统的电压质量有着至关重要的作用.提出了基于一阶灵敏度的无功补偿改进方案.根据网损/无功灵敏度法确定出初始无功补偿节点集,综合考虑网损/无功灵敏度法、补偿容量、节点分布情况以及电压幅值确定出无功补偿节点.通过分布式电源与储能装置的协调运行实现有源配电网的无功补偿,达到提高电压幅值、稳定电压水平的效果.最后在改进的IEEE33节点系统上进行计算分析,验证了本文方法的正确性与有效性.Reactive power compensation is important for improving the voltage quality of active distribution network.An improved reactive power compensation scheme is proposed based on the first order sensitivity.Firstly,the initial reactive power compensation node set is determined according to the network loss/reactive power sensitivity method.Then the reactive power compensation node is identified in terms of the network loss/reactive power sensitivity method,the compensation capacity,the node distribution and the voltage amplitude.The reactive power compensation is accomplished through the coordinated operation of distributed generation and energy storage device,which can improve the voltage amplitude and stablize the voltage level.Finally,the correctness and effectiveness of the proposed method is verified by the analysis and calculation on the improved IEEE33system.

关 键 词：有源配电网 分布式电源 无功补偿 网损/无功灵敏度 

分 类 号：TM7[电气工程—电力系统及自动化]