| 引用本文: | 蔡逢煌,王 武,陈浩龙.倍压Boost-APFC变换器的改进型单周期控制[J].电力自动化设备,2015,35(10): |
| CAI Fenghuang,WANG Wu,CHEN Haolong.Improved single-cycle control of double-voltage Boost-APFC converter[J].Electric Power Automation Equipment,2015,35(10): |
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| 摘要: |
| 阐述了单相倍压Boost有源功率因数校正（Boost-APFC）变换器拓扑的工作原理以及传统单周期控制算法的特点。基于电感电流混合导通模式的工作条件，并针对电感电流连续模式下的单周期算法在电流断续模式下的失效，提出了改进型单周期控制算法。该算法针对电感电流断续模式下存在的电感电流采样误差，引入电流修正系数对采样电流进行修正。同时，对单周期算法中的稳态部分进行改进，使其能够适用于电感电流混合导通的情况。改进型单周期控制算法能够使倍压Boost-APFC电路从轻载到满载的全功率范围获得较高的功率因数。基于PSIM仿真软件平台对控制算法进行了仿真，试制了4.8 kW的实验平台和控制板。仿真和样机实验结果均表明理论分析的正确性。 |
| 关键词: 有源功率因数校正 变换器 改进型单周期控制 倍压Boost 数字控制 |
| DOI： |
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| 基金项目:福建省自然科学基金资助项目（2013J01178） |
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| Improved single-cycle control of double-voltage Boost-APFC converter |
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CAI Fenghuang, WANG Wu, CHEN Haolong
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College of Electrical Engineering and Automation，Fuzhou University，Fuzhou 350116，China
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| Abstract: |
| The operating principle of single-phase double-voltage Boost-APFC （Boost Active Power Factor Correction） converter and the characteristics of traditional single-cycle control algorithm are described. As the traditional single-cycle control algorithm can be applied only in the continuous inductive current mode，an improved single-cycle control algorithm is proposed based on the operating conditions of hybrid inductive current modes，which applies a current correction coefficient to modify the sampling current for correcting the error of inductive current sampling in the discontinuous inductive current mode. The steady-state part of the traditional single-cycle control algorithm is improved to adapt for the hybrid inductance current modes，which achieves a whole-range higher power factor of the double-voltage Boost-APFC converter. Results of the simulation based on PSIM and the experiment based on a 4.8 kW prototype show the validity of theoretical analysis. |
| Key words: active power factor correction electric converters improved single-cycle control double-voltage Boost digital control |
