三相四桥臂逆变器的设计与控制  

Design and control of three-phase four-leg inverter

作　　者：赵振民[1] 张宁[1] 宋海明[1] 

机构地区：[1]黑龙江科技大学电气与控制工程学院,哈尔滨150022

出　　处：《黑龙江科技大学学报》2015年第2期219-223,共5页Journal of Heilongjiang University of Science And Technology

摘　　要：为了解决不平衡负载影响电能质量的问题,在传统的三桥臂逆变器的基础上采用三相四桥臂逆变器。该逆变器可以在不平衡负荷的情况下,能够有效地抑制不平衡负载电流对电压的扰动,保证输出的三相电压近似对称。为了验证该逆变器控制策略,硬件拓扑结构以及三维空间矢量调制算法的可行性,进行MATLAB仿真。结果表明,三相四桥臂逆变器能够解决在不平衡负载下输出三相对称电压的问题,其功能和三维空间矢量调制策略可行。This paper introduces a three-phase four-leg inverter designed specifically for addressing the influence of unbalanced load on electric energy quality. This inverter, developed from a traditional three-leg inverter, works better for effectively suppressing the disturbance of unbalanced load current on voltage despite the presence of unbalanced load, thus ensuring the approximate symmetry in three-phase output voltage. The inverter proves feasible when validated by MATLAB simulation of the inverter control strategy, hardware topology structure and 3 D-SVPWM. The results verify that the inverter is a solution to the symmetry in three-phase output voltage in the presence of unbalanced load.

关 键 词：不平衡负载 三相四桥臂逆变器 三维空间矢量调制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]