| 四桥臂逆变器SPWM和SVPWM的归一化研究 |
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| 引用本文： | 王晓刚,谢运祥,黄少辉,帅定新. 四桥臂逆变器SPWM和SVPWM的归一化研究[J]. 电机与控制学报, 2010, 14(1) |
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| 作者姓名： | 王晓刚 谢运祥 黄少辉 帅定新 |
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| 作者单位： | 1. 华南理工大学电力学院,广东,广州,510640;广州大学机械与电气工程学院,广东,广州,510006
2. 华南理工大学电力学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金(50007001) |
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| 摘 要： | 针对四桥臂逆变器常规空间矢量脉宽调制(SVPWM)需进行坐标变换的问题,对四桥臂逆变器的SVPWM和正弦脉宽调制(SPWM)两种调制技术进行了分析,给出了一种快速数字化三维(3D)SVPWM算法,无需坐标变换,节约了计算时间;证明了常规3D-SPWM改进后,与3D-SVP-WM完全等效,两者是归一化的,而且本质上均为逆变器最优跟踪控制方程的解,可获得最大直流电压利用率。SVPWM比SPWM算法更简单,是工程应用的首选。给出了详细的仿真结果,在一台四桥臂样机上验证了结论的正确性。
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| 关 键 词： | 逆变器 四桥臂 脉宽调制 归一化 数字化 |
Unification of SPWM and SVPWM in four-leg inverter |
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| WANG Xiao-gang,XIE Yun-xiang,HUANG Shao-hui,SHUAI Ding-xin. Unification of SPWM and SVPWM in four-leg inverter[J]. Electric Machines and Control, 2010, 14(1) |
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| Authors: | WANG Xiao-gang XIE Yun-xiang HUANG Shao-hui SHUAI Ding-xin |
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| Affiliation: | 1.College of Electric Power;South China University of Technology;Guangzhou 510640;China;2.College of Mechanical and Electrical Engineering;Guangzhou University;Guangzhou 510006;China |
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| Abstract: | Coordinate transformation is necessary in conventional space vector pulse width modulation(SVPWM) scheme of the fou-leg inverter.The SVPWM and sinusoidal pulse width modulation(SPWM) techniques used in four-leg inverter were analyzed in detail.A fast digital three-dimensional(3D) SVPWM algorithm which eliminates coordinate transformation and saves calculating time was proposed.Conventional 3D-SPWM with improvement was equivalent to 3D-SVPWM absolutely was proved;they were two unified PWM methods.In nature,t... |
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| Keywords: | inverter four-leg pulse width modulation unification digitalization |
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