谐振极软开关变频器矢量控制的研究

The study of technology of vector control with RPZVT

逆变器开关频率的高低是影响交流电机调速系统精度的重要因素,而软开关技术则是提高开关频率、解决开关损耗问题最好的方法.本文提出了一种谐振极零电压过渡软开关逆变器基于转子磁通定向矢量控制系统的新方案,给出了详细的设计思路和原则.通过仿真试验了此软开关技术逆变器在矢量控制技术应用中的可行性.

The switch of frequency inverter is the important factor to affect the AC machine precision of velocity modulation system AC motor.The soft-switch technology is a good method to increase the operation frequency and decrease the loss of switch.A scheme of rotor-flux-oriented vector control system with a RPZVT inverter is proposed and the design strategy and principles are introduced.The feasibility of vector control with soft-switch technique is verified by computer simulation.