| Boost前置功率因数补偿电路的调制脉宽分析 |
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| 引用本文： | 于长云,张桦,王哲明,孙济洲.Boost前置功率因数补偿电路的调制脉宽分析[J].天津大学学报(自然科学与工程技术版),2002,35(2):253-256. |
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| 作者姓名： | 于长云 张桦 王哲明 孙济洲 |
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| 作者单位： | [1]天津理工学院计算科学与工程系，天津300191 [2]天津大学电子信息工程学院，天津300072 |
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| 基金项目： | 天津市自然科学基金资助项目 (0 0 360 0 1 1 1 ) |
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| 摘 要： | 针对Boost前置电路调整功率因数时控制调制脉冲宽度问题，分析了功率因数条件，推导出Boost电路的调整脉冲宽度函数，指出该函数恰与Boost电路稳态工作条件近似，并讨论了电路理想条件、输出电压纹波、纹波电流和过零点畸变等相关问题。
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| 关 键 词： | Boost前置电路 功率因数补偿 脉宽调制 纹波电流 过零点畸变 电网 |
| 文章编号： | 0493-2137(2002)02-0253-04 |
| 修稿时间： | 2001年10月9日 |
Pulse Width Analysis in Boost PFC Pre-Regulators |
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| YU Chang yun ,ZHANG Hua ,WANG Zhe ming ,SUN Ji zhou.Pulse Width Analysis in Boost PFC Pre-Regulators[J].Journal of Tianjin University(Science and Technology),2002,35(2):253-256. |
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| Authors: | YU Chang yun ZHANG Hua WANG Zhe ming SUN Ji zhou |
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| Institution: | YU Chang yun 1,ZHANG Hua 1,WANG Zhe ming 1,SUN Ji zhou 2 |
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| Abstract: | The PFC technology will be of great practical value in power industry.Boost pre regulators have been widely used to correct power factor in variety of power supplies,which key technology is the control method of PWM.This article analyses the power factor correction condition,derives the relationship adjusted pulse width (duty cycle),indicates that relationship is similar to the steady state condition of boost circuits,and then discusses some relative problems,including the based assumptions,output voltage ripple waveform,ripple current and zero cross distortion. |
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| Keywords: | Boost pre regulator power factor correction (PFC) pulse width modulation (PWM) ripple current zero cross distortion |
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