基波电压线性输出的两相SVPWM算法  

Algorithm of the Two Phase SVPWM in the Overmodulation Region of Fundamental Voltage Amplitude linear Output Control

作　　者：荆建立[1] 

机构地区：[1]中山火炬职业技术学院电子工程系

出　　处：《变频器世界》2008年第10期57-58,75,共3页The World of Inverters

摘　　要：本文提出了一种基于基波电压幅值线性输出控制的两相SVPWM过调制算法,该算法不需要存储数据.能够使逆变器平滑的从线性调制工作状态过渡到方波工作状态,非常适合数字化应用。文中分析了应用该算法以后,逆变器输出相电压的谐波畸变(THD)情况,以及主要谐波成分百分含量的变化情况,并和传统两相SVPWM控制算法进行了技术指标对比。分析及仿真证明,该算法具有输出基波电压增益线形和实现简单的优点,非常适合电机实际应用。Based on fundamental voltage amplitude linear output control,a digital overmodulation control strategy for the two phase SVPWM inverters is presented inthis paper. this strategy is very suitable for practical digital implementation,because it can manage the transition from the linear control range to squaaare-wave operation smoothly.The harmonic components and the total harmonic distortion （THD） of the output voltage were analyzed and compared with the classical two phase SVPWM strategy.Analyses and simulation results verify that this stategy is very useful for the motor with the linear gain and simple application.

关 键 词：过调制 空间矢量脉宽调制 两相电机 电压型逆变器 

分 类 号：TM935[电气工程—电力电子与电力传动]