适应波动性负荷接入的D-STATCOM滞回运行策略  

D-STATCOM Hysteretic Operation Strategy Adapting to Fluctuant Load Accessing

作　　者：刘轩[1] 张勇军[1] 周俊煌 LIU Xuan;ZHANG Yongjun;ZHOU Junhuang(School of Electric Power , South China University of Technology , Guangzhou , Guangdong 510640 , China)

机构地区：[1]华南理工大学电力学院,广东广州510640

出　　处：《广东电力》2018年第4期108-114,共7页Guangdong Electric Power

基　　金：国家自然科学基金项目(51377060)

摘　　要：为了使D-STATCOM能适用于含波动性负荷接入的配电网,基于变动值的指标,建立了含D-STATCOM及波动性负荷的配电网运行模型,研究关口无功功率与负荷、D-STATCOM目标电压的关系,在电压调差率控制的基础上提出了D-STATCOM的目标无功功率-电压滞回运行策略,并给出不同运行模式的切换条件。最后基于实际的负荷数据对所提策略的运行效果进行了验证,结果表明,在配电网运行量随机变化时,D-STATCOM滞回运行策略能有效减少无功功率与电压的波动,提高D-STATCOM的无功裕度,降低配电网网损,保证配电网的安全经济运行。In order to make D-STATCOM suitable for the power distribution network containing fluctuant load,this paper builds an operation model for the power distribution network containing D-STATCOM and fluctuant load and studies relations between gate reactive power,load and D-STATCOM target voltage.Meanwhile,on the basis of voltage regulation rate control,it proposes the D-STATCOM target reactive power-voltage hysteretic operation strategy and provides corresponding switching conditions of different operation modes.Finally,it verifies effect of the proposed strategy according to actual load data.The results indicate as power distribution network operation varies randomly,the D-STATCOM hysteretic operation strategy can effectively reduce fluctuation of reactive power and voltage,improve reactive D-STATCOM margin,reduce network loss and ensure safe and economic operation of the power distribution network.

关 键 词：配电网 电压波动 D-STATCOM 无功功率-电压 滞回运行 

分 类 号：TM712[电气工程—电力系统及自动化]