三电平3D-SVPWM与CBPWM的一致性研究  

Unity Studies Between Three-level 3D-SVPWM and CBPWM

作　　者：李兰芳 王映品[2] 徐晓刚 谢运祥[2] 曾志武[2] 张晓宇[2] LI Lanfang WANG Yingpin XU Xiaogang XIE Yunxiang ZENG Zhiwu ZHANG Xiaoyu(Electric Power Research Institute, Guangdong Power Grid Co. Ltd, Guangzhou 510080, China School of Electric Power, South China University of Technology, Guangzhou 510641, China)

机构地区：[1]广东电网有限责任公司电力科学研究院,广州510080 [2]华南理工大学电力学院,广州510641

出　　处：《微电机》2017年第6期51-55,91,共6页Micromotors

基　　金：中国南方电网有限责任公司科技项目(GDKJXM00000015)

摘　　要：空间矢量调制法与载波调制法常用于电机控制与电力电子装置控制。空间矢量调制法在多电平时计算复杂,而载波调制法简单易懂。论文以三电平三相四线有源滤波装置为研究对象,通过建立数学模型,分别计算三维空间矢量(3D-SVPWM)与载波调制的开关作用时间。通过对比发现,三电平3D-SVPWM的开关时间与同相层叠载波调制的开关时间一致,通过仿真实验分析验证推理的正确性。结果表明可以用同相层叠载波调制法代替采用邻近开关矢量拟合的三电平3D-SVPWM调制。Space vector pulse width modulation -SVPWM and carrier-based modulation are commonly ap- plied in motor control and electronics devices. The calculation of SVPWM is complex in multi-level convert- er, while CBPWM still in simple. The paper toke three level 3-phase 4-wire active power filter device as re- search object, built up mathematical model, and calculated switching times in 3 D-SVPWM and CBPWM re- spectively. After comparisons, found that the switching times in 3D-SVPWM are the same with in CBPWM. Simulation and experimental results validate the correctness of the deduction. So that can apply in phase stack CBPWM to replace nearest three space vector pulse width modulation.

关 键 词：三维空间矢量 载波调制 三电平三相四线有源滤波器 开关时间 

分 类 号：TM464[电气工程—电器]