基于空心杯电机的SPWM与SVPWM研究  

Analysis of SPWM and SVPWM Based on Coreless Motor

作　　者：董大为[1] 杨墨[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072

出　　处：《电机与控制应用》2010年第4期21-25,共5页Electric machines & control application

基　　金：上海大学创新基金项目(SHUCX092198)

摘　　要：正弦脉宽调制(SPWM)与空间矢量脉宽调制(SVPWM)都是目前常用的调制模式,被广泛应用于各种交流电机的调速系统中。空心杯电机,由于其便捷的控制特性,作为高性能的传动机构,代表了交流电机的发展方向之一。理论分析两种调制方法的特点,并通过分析试验条件,提出在开环变频的条件下对两种调制方法进行比较。基于英飞凌XC164CM完成了软、硬件试验平台的建立,通过对空心杯电机进行变频调速来比较两种调制方法。试验结果表明,采用SVPWM可以提高电源的利用效率,有效减小电机的脉振;在稳态时,对于同一种调制方式的线性调制比越大,相电流的幅值越大。As the usual modulation mode,SPWM and SVPWM is widely used in the speed control system of the AC motor.For the smart control performance and smooth running performance,coreless motor has been a development trend of AC motor.Analyzing of traits of SPWM and SVPWM and the experiment condition,used a open loop control system to compare the two modes.With Infineon XC164CM,the two methods using a coreless motor was test.The results showed that SVPWM has a better performance on the use of the power supply and made the motor have a lower torque bouncing.When using the same PWM mode,the larger linear modulation ratio is the higher amplitude of phase current.

关 键 词：空心杯电机 变频调速 线性调制比 

分 类 号：TM301.2[电气工程—电机]