摘要
介绍了双PWM变频器在负载测试台中的应用,变频器调速系统通过负载系统的变频器有源逆变方式把电动机制动时产生的再生能量回馈电网,而回馈的电能又可以运用到驱动侧系统中,减少了测试台总体对电网电能的需求,具有高效节能的优点,另一方面也可以实现电动机的精密制动,提高电动机的动态性能。
The dual PWM converter in the load test in the application of inverter speed control system was introduced,through the load system of inverter active inverter the motor braking produced renewable energy feedback power grid, and the feedback electric energy can be applied to the drive side system, reduce the testing rig for the power demand, with the advantages of high efficiency and energy saving, but also can realize the precise braking motor, improve motor dynamic performance.
出处
《电气传动》
北大核心
2013年第7期27-30,共4页
Electric Drive
关键词
双PWM变频器
能量回馈
高效节能
double PWM frequency converter
energy feedback
high efficiency and energy saving
