| 数字控制高频变换器的新颖PWM方法 |
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| 引用本文： | 彭力,林新春,康勇,陈坚.数字控制高频变换器的新颖PWM方法[J].中国电机工程学报,2001,21(10):47-51. |
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| 作者姓名： | 彭力 林新春 康勇 陈坚 |
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| 作者单位： | 华中理工大学电气工程学院 |
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| 摘 要： | 数字化PWM调制在高频应用中存在精度受限制的问题。该文提出一种新的PWM技术－双调制PWM，结合高频和低频的优势，解决了数字化PWM中高频与精度之间的矛盾，使数字化PWM可用于高频，高精度电能变换器之中，理论分析，仿真和实验结果均论证了这一方法的优越性。
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| 关 键 词： | 高频变换器 数字控制 PWM 控制电路 |
| 文章编号： | 0258-8013(2001)10-0047-05 |
| 修稿时间： | 2000年4月10日 |
A NOVEL PWM TECHNIQUE IN HIGH-FREQUENCY CONVERTER CONTROLLED BY DIGITAL SYSTEM |
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| PENG Li,LIN Xin-chun,KANG Yong,CHEN Jian.A NOVEL PWM TECHNIQUE IN HIGH-FREQUENCY CONVERTER CONTROLLED BY DIGITAL SYSTEM[J].Proceedings of the CSEE,2001,21(10):47-51. |
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| Authors: | PENG Li LIN Xin-chun KANG Yong CHEN Jian |
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| Abstract: | One problem with high-frequency PWM converter controlled by digital system is resolution limitation imposed by the hardware timer. In this paper, a novel PWM technique-double PWM(DPWM) is described. DPWM includes advantages of low and high switching frequency conversion, resolves the contradiction between high-frequency and precision in digital control circuits. Theoretic analysis, simulation and experimental results are included to show the performance of DPWM for high-frequency high-precision digitally controlled converter applications. |
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| Keywords: | PWM technique high-frequency digital control high-precision |
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