| 空间电压矢量控制算法的改进与仿真 |
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| 引用本文： | 吕高,赵巧娥,章伟明.空间电压矢量控制算法的改进与仿真[J].火力与指挥控制,2016(8):165-168. |
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| 作者姓名： | 吕高 赵巧娥 章伟明 |
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| 作者单位： | 山西大学,太原,030013 |
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| 基金项目： | 山西省科技基础条件平台建设基金 |
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| 摘 要： | 首先详细分析了空间电压矢量调制(SVPWM)的工作原理,在3/2坐标变换的基础上,提出来用Uβ值的正负和合成电压矢量与Uα轴夹角的余弦值来判断扇区的新算法,最后以异步电机为控制对象,在MATLAB仿真软件上对控制电路和主电路进行仿真验算,仿真结果表明算法准确,电机转速平稳,波动小。
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| 关 键 词： | SVPWM 扇区判断 MATLAB |
Improvement and Simulation of Space Voltage Vector Control Algorithm |
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| Abstract: | This paper makes a detailed analysis of the working principle of voltage space vector pulse width modulation (SVPWM),on the base of 3 / 2 transformation ,a new algorithm of sector selected is used,that is value of the positive and negative of Uβ and cos? between voltage vector and Uα,finally asynchronous motor is used as the control object,the control circuit and main circuit simulation is verificated in the MATLAB simulation software . The simulation results show that algorithm is accurate,motor speed is stable,fluctuation is small. |
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| Keywords: | SVPWM sector judgment MATLAB |
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