摘要
针对传统变频器网侧功率因数低,能量不可逆等缺点,介绍了一种新型的双PWM变频器.它是在通用变频器的基础上,引进可逆PWM整流器来取代不控整流,并采用空间矢量控制策略,实现了单位功率因数运行,直流输出稳定,动态性能好,几乎不产生谐波,且能量可以双向传输.实验结果证明了这种理论的正确性和可行性.
A new dual - PWM converter is introduced because of traditional converter has some drawbacks, such as low ac - side power factor, un - reversible power flow etc. On the base of general converter, by introducing uncontrolled rectifier with PWM rectifier and employing space vector control strategy, dual - PWM converter can actively eliminate ac - side harmonic pollution of inverter, raise ac - side power factor, and work well with steady output voltage and bi - directional power flow. The experiment results are proved correct and feasible.
出处
《河南理工大学学报（自然科学版）》
CAS
2007年第5期540-544,共5页
Journal of Henan Polytechnic University（Natural Science）
基金
河南省自然科学基金资助项目(2006510005)
河南理工大学青年基金资助项目(Q2006-48)
