摘要
为了解决传统三电平SVPWM算法涉及较多的三角函数,运算量过大的问题,在原有的三电平SVPWM矢量分解算法基础上,介绍了一种基于第1大扇区内第1小扇区的三电平SVPWM算法。该算法将参考矢量旋转到第1大扇区,随后将其转化到两电平第1小扇区,通过计算第1小扇区的相关矢量作用时间即可求出三电平任意区域内相关矢量的作用时间,简化了计算量。最后在Simulink中建立了该算法的异步电机开环仿真模型,仿真结果表明该算法是正确的,电机在该算法控制下运行稳定。
The traditional three -level SVPWM algorithm contain lots of trigonometric function, calculation is too large, in order to solve this problem,based on the former three -level SVPWM vector decomposition algorithm , introduced a three -level algorithm which based the first big sector＇s first small sector. This algorithm revolve the reference vector to the first big sector, then transform it into two -level＇s first small sector,calculate the first small sector＇s reference duration,then any region＇s reference vector duration in three-level can be calculated, so reduce the amount of calculation. Lastly , build this algorithm＇s and traditional algorithm＇s asynchronous motor open loop simulation model in Simulink, simulation result indicate this algorithm is correct, motor under this algorithm is steady.
出处
《煤矿机械》
北大核心
2014年第2期59-61,共3页
Coal Mine Machinery
关键词
第1大扇区
第1小扇区
异步电机
开环
first big sector
first small sector
asynchronous motor
open loop
