用于间谐波补偿D-STATCOM直流电压分析控制  

Direct Current Voltage Analysis and Control of D-STATCOM for Interharmonics Compensation

作　　者：范程 张茂松[1,2] 王群京 李国丽[1,3] FAN Cheng;ZHANG Mao-song;WANG Qun-jing;LI Guo-li(Anhui University,Hefei 230601,China)

机构地区：[1]安徽大学,电气工程与自动化学院,安徽合肥230601 [2]安徽大学,工业节电与电能质量控制协同创新中心,安徽合肥230601 [3]教育部电能质量工程研究中心(安徽大学),安徽合肥230601

出　　处：《电力电子技术》2020年第7期29-32,共4页Power Electronics

基　　金：国家重点研发计划(2016YFB0900405,2018YFB0104605)。

摘　　要：这里通过所建立的单个H桥逆变单元等效模型对配电网静止同步补偿器(D-STATCOM)直流侧电压进行分析,推导出直流电压交流分量中高次谐波分量和低次谐波分量的幅值表达式;通过给定指令电流,实现了DSTATCOM的间谐波补偿和直流电压的总和控制;基于相内各H桥逆变单元之间的有功能量交换确保了各个模块直流电压的均衡,以此提出了直流电压总和控制与直流电压均衡控制相结合的控制策略。最后,通过仿真和实验结果验证了所提控制方法的有效性。The direct current voltage of distribution static synchronous compensator(D-STATCOM)is analyzed by the established equivalent model of H-bridge inverter unit,and the amplitude expression of higher harmonic component and lower harmonic component of direct current voltage alternating current component is derived.Interharmonics compensation of STATCOM and the sum control of direct current voltage are realized by the given instruction current.Active energy exchange between H-bridge inverter unit ensures the direct current voltage balance of each module.Therefore,a control strategy combining direct current voltage sum control and direct current voltage balance control is proposed.Finally,the simulation and experimental results verify the effectiveness of the proposed control method.

关 键 词：配电网静止同步补偿器 间谐波补偿 直流电压分析 

分 类 号：TN715.2[电子电信—电路与系统]