| 具有谐波抑制及单位功率因数的AC/DC稳压电源 |
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| 引用本文： | 孙频东.具有谐波抑制及单位功率因数的AC/DC稳压电源[J].南京师范大学学报,2004,4(2):26-29. |
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| 作者姓名： | 孙频东 |
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| 作者单位： | 南京师范大学电气与电子工程学院 江苏南京210042 |
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| 摘 要： | 在交流变压器副边的桥式整流电路后，去除滤波电容．用脉宽调制(PWM)加电流闭环的方法，实现电源从交流到直流的转换，使交流侧电流的谐波分量得到有效抑制，使电流波形具有良好的正弦特性，同时也使电源的功率因数近似为1，使电源的性能得到有效提高-在对电路进行分析的基础上，用仿真的方法进行验证，得到和理论分析一致的结果．由此，设计了单片机控制系统，通过对主电路中ICBT门极信号的控制，实现预定的控制策略．
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| 关 键 词： | 谐波抑制 功率因数 开关电源 脉宽调制 |
| 文章编号： | 1672-1292(2004)02-0026-04 |
| 修稿时间： | 2003年9月3日 |
The Design of AC-to-DC Regulated Converters with Unity Power Factor & Harmonic Reduction |
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| SUN Pindong.The Design of AC-to-DC Regulated Converters with Unity Power Factor & Harmonic Reduction[J].Journal of Nanjing Nor Univ: Eng and Technol,2004,4(2):26-29. |
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| Authors: | SUN Pindong |
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| Abstract: | The filter capacitor C connected in the DC side of diodes bridge rectifier was removed. By using pulse width modulation (PWM) method and current loop, energy conversion from AC to DC was realized, performance of the power supply was upgraded, the harmonic currents was restrained, the current in the AC side was made to be of good sinusoidal shape and the converter of unify power factor was insured. After theoretical analysis of the operating principle, simulations was carried out to verify the theoretical result. A microcomputer based control system, which was used to trigger the gates of IGBT and realize the strategy of control, was also provided. |
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| Keywords: | harmonic reduction power factor switching power supply PWM |
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