摘要 针对传统的补偿控制策略存在相位失真、有功功率消耗大的问题,提出一种优化补偿控制策略.该策略通过注入动态电压恢复器(dynamic voltage restorer,DVR)有功功率的大小来优化直流侧电压的调节量,并对优化补偿策略的补偿特性进行系统分析;针对逆变单元输出受到非线性和冲击性负载扰动的问题,建立了一种混合级联H桥多电平逆变拓扑,分析其结构及工作原理,完成了多电平DVR数字系统的设计,包括软硬件的设计.在Chroma6590可编程交流电源上模拟电网电压,并在该系统上进行并网补偿试验.仿真与试验结果表明,所设计的DVR系统补偿效果很好,能够实现装置输出有功功率最小并延长补偿时间,有效减少输出谐波.
Abstract：To solve the problems of phase distortion and high active power consumption of traditional compensation control strategy, an optimization compensation control strategy was proposed. The dynamic voltage restorer (DVR) active power size was introduced to optimize the regulation amount of DC side voltage, and the systematic analysis on the compensation characteristics of compensation strategy was conducted. To solve the problems of nonlinear and impact load disturbance of invert output unit, a hybrid cascaded Hbridge multilevel invert topology was established, and the structure and working principle were analyzed. The multilevel DVR digital system including hardware and software was designed. On the Chroma6590 programmable AC power supply, the grid voltage was simulated, and the grid compensation experiment was conducted in the system.The results of simulation and experiment show that the designed DVR compensation effect is very good and can realize the minimum device output active power and prolong time compensation with effectively reduced output harmonic.
黄永红, 杜立, 高敏, 周杰. 基于优化补偿控制的动态电压恢复器数字系统设计[J]. 江苏大学学报（自然科学版）, 2017, 38(5): 555-562.
HUANG Yong-Hong, DU Li, GAO Min, ZHOU Jie. Design and implementation of dynamic voltage restorer digital system based on optimal compensation control[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2017, 38(5): 555-562.
2017, Vol. 38 
