| SPWM差值二次逼近算法 |
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| 引用本文： | 谭寿云.SPWM差值二次逼近算法[J].机车电传动,1997(4):16-19,27. |
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| 作者姓名： | 谭寿云 |
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| 作者单位： | 株洲电力机车研究所 |
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| 基金项目： | “八五”国家重点科技攻关项目 |
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| 摘 要： | 在大功率逆变器的实时控制中，如何快速准确地计算出ＳＰＷＭ交点是一个关键问题。文中介绍了ＳＰＷＭ差值二次逼近算法的原理，推导了各种ＳＰＷＭ调试方式下的计算公式，并分析了算法误差及谐波分析，给出了ＳＰＷＭ同步调试方式下该算法实现的程序框图。该算法在４０００ｋＷ交直交电力机车油冷变流机组地面试验系统中得到验证，并取得了良好效果。
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| 关 键 词： | 逆变器 SPWM 差值 二次逼近算法 电力机车 |
SPWM differential second approximation arithmetic |
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| Zhuzhou Electric Locomotive Research Institute.SPWM differential second approximation arithmetic[J].Electric Drive For Locomotive,1997(4):16-19,27. |
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| Authors: | Zhuzhou Electric Locomotive Research Institute |
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| Institution: | Zhuzhou 412001 |
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| Abstract: | How to calculate SPWM cross point rapidly and accurately is a key problem in the real time controller of high power inverter. This paper introduces the theory of SPWM differential second approximation arithmetic,the formula,the error and harmonics of serial modulation.The block diagram of program under synchronous modulation are given.This arithmetic has been applied in AC 4000 AC DC AC drive electric locomotive inverter controller,and has got good results. |
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| Keywords: | inverter real time control SPWM differential second approximation arithmetic error analysis test result |
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