An Improved Method of Dead Time Compensation in the Zero-Crossing Current Region with Low-Frequency Operation

摘要：

In a voltage -fed PWM inverter, the relation between the reference voltage and actual output voltage is nonlinear due to the dead time effect and the voltage drop of power devices. The distortion of voltage invokes serious problems such as current waveform distortion and deterioration of the systems. More seriously, the current waveform is clamped to be a wide platform around the zero crossing point in the low-frequency region. In this paper, an improved method which reduces the distortion of voltage and current is presented. The method is based on SVPWM strategy and it can be implemented with software without any extra hardware. Simulation results are presented to demonstrate the validity of the proposed method.

作者: Qingyi WANG Hui LUO Xing DEN Shuyun WAN

作者单位: Huazhong University of Science and Technology, China

会议类型: 国际会议

会议名称: 2nd IEEE Conference on Industrial Electronics and Applications(ICIEA 2007)(第二届IEEE工业电子与应用国际会议)

会议地点: 哈尔滨

会议语种:英文

在线出版日期: 2007-05-23（万方平台首次上网日期，不代表论文的发表时间）