| 改进单周期控制有源前端变换器的研究 |
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| 引用本文： | 刘松斌,王明彦.改进单周期控制有源前端变换器的研究[J].低压电器,2008(9):43-46. |
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| 作者姓名： | 刘松斌 王明彦 |
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| 作者单位： | 哈尔滨工业大学,电气工程及其自动化学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 基于单周期控制(OCC)有源前端(AFE)变换器具有抗电源扰动能力强、动态响应快、鲁棒性强、恒频控制等优点,但在轻载时变换器的功率因数变差,提出了改进OCC策略,采用前馈补偿控制改善轻载时对功率因数的影响,进一步研究采用独立的锯齿波电路完全消除轻载时对功率因数的影响,建立改进OCC AFE变换器的数学模型.理论和仿真实验证明该控制策略的有效性和实用性.
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| 关 键 词： | 有源前端变换器 功率因数校正 改进单周期控制 |
| 文章编号： | 1001-5531(2008)09-0043-04 |
| 修稿时间： | 2007年10月9日 |
Research of Active Front End Converter Based on Modified one-Cycle Control |
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| LIU Songbin,WANG Mingyan.Research of Active Front End Converter Based on Modified one-Cycle Control[J].Low Voltage Apparatus,2008(9):43-46. |
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| Authors: | LIU Songbin WANG Mingyan |
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| Abstract: | Based on one-cycle control (OCC) having such merits as anti-perturbation of source, fast dynamic response, robustness, constant frequency, but when converter works in light load its power factor becomes very poor. The modified OCC was proposed, adopting feed-forward compensation control improves influence of power factor at light load, further study adopting independence saw tooth wave completely eliminate influence of power factor at light load. Modified OCC active front end converter mathematical model was established. Theory and simulation experiment prove that the control approach is validity and practicability. |
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| Keywords: | active front end (AFE) converter power factor correction (PFC) modified one-cycle control |
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