电气传动2012，Vol.42Issue(11)：65-70,6.
基于FPGA的模块化多电平变换器控制策略研究
Control Strategy for Modular Multilevel Converter Based on FPGA
摘要
Abstract
Modular multilevel converter (MMC) which is mainly used in high voltage field is a new topolog-ical structure. The topological structure of MMC and its principle was introduced. Taking five levels converter as an example, the space vector PWM(SVPWM) was used based on reference voltage decomposition for modulation. By choosing redundancy vector, the switching frequency drops by a third. Through dynamic selection of the bridge arm's subsystem, the balance control of DC capacitor voltage is achieved. Aiming at the problem that FPGA is difficult to realize trigonometric calculation, a new method of sector selection was put forward. Finally, simulation and experiments were respectively conducted in Matlab/Simulink and Xilinx FPGA XC3S400 model, and both theoretical analysis and experimental results show the superiority of this control strategy.关键词
模块化多电平变换器/参考电压分解SVPWM/电容电压平衡/5电平/现场可编程门阵列Key words
modular multilevel converter(MMC)/ reference voltage decomposition SVPWM/ capacitor voltage balancing control/ five levels/ field programmable gate array (FPGA)分类
信息技术与安全科学引用本文复制引用
李小强,戴鹏,朱荣伍,伍小杰..基于FPGA的模块化多电平变换器控制策略研究[J].电气传动,2012,42(11):65-70,6.基金项目
江苏省"青蓝工程" （）
徐州市科技项目(XJ11B008) （XJ11B008）
