摘要
针对传统变频调速系统算法复杂的问题,提出了SPWM变频调速系统。文章中构造了变频调速异步电动机的数学模型,电动机的快速跟踪通过闭环系统的方式进行,这样能很好的减小初始波动和响应时间。文章通过Matlab在分别改变负载、频率时对开、闭环系统进行了仿真测试,测试结果表明,变频和变负载时该系统在转速和转矩稳定度很高,具有很高的实用价值。
Frequency control system for the traditional problem of complexity of the algorithm is proposed SPWM frequency control system. Article inverter constructed a mathematical model of asynchronous motor, the motor fast track way through the closed loop system, which can be a good initial fluctuations and reduce the response time. Articles were changed through Matlab in load off frequency, the closed-loop system simulation test, the test results show that the variable frequency and variable loads the sys- tem stability in high speed and torque, with high practical value.
出处
《自动化与仪器仪表》
2013年第5期90-91,93,共3页
Automation & Instrumentation
