| .三电平整流器中点电位平衡的研究[J].电气自动化,2011,(4): |
| 三电平整流器中点电位平衡的研究 |
| Study of Neutral Point Voltage Balance for Three-level Rectifier |
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| DOI： |
| 中文关键词: PWM整流器 双闭环控制 中点电位控制 60°坐标系 |
| 英文关键词: |
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| 摘要点击次数: 2507 |
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| 中文摘要: |
| 介绍了一种新的中点电压平衡控制策略,得出SVPWM简化算法(传统的三电平SVPWM算法很复杂,涉及很多的三角函数和查表)。在d,q坐标系下建立三电平中点箝位电压型整流器高频数学模型,采用电压外环和电流内环的双闭环控制实现了三电平整流器的高性能特性。最后在MATLAB仿真环境中建立仿真模型,对60°坐标系SVPWM算法进行仿真,结果验证了该算法具有保持中点电位平衡和抗大负载扰动的优点。 |
| 英文摘要: |
| The traditional three level SVPWM algorithm is very complex,relating to many trigonometric function computing and look-up table.In this paper,the predigested SVPWM algorithm is elicited by using a new neutral balanced control strategy.The high-frequency mathematical model of three level neutral-point-clamped voltage source rectifier was established in the d,q frames,using the dual closed loop control of voltage outer loop and current inner loop,the three level rectifier high-performance features were achiev... |
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