| 三相无电解电容LED电源 |
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| 引用本文： | 方炜,盛超,刘晓东,刘宿城,戴泉.三相无电解电容LED电源[J].电源学报,2015,13(2):27-32. |
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| 作者姓名： | 方炜 盛超 刘晓东 刘宿城 戴泉 |
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| 作者单位： | 安徽工业大学电气与信息工程学院自动化系,安徽工业大学电气与信息工程学院,安徽工业大学电气与信息工程学院,安徽工业大学电气与信息工程学院,马鞍山马钢第四刚轧总厂设备保障部 |
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| 基金项目： | 国家自然科学基金项目(51207001)；安徽省自然科学基金项目(1308085ME66) |
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| 摘 要： | LED作为第4代光源具有其他光源所无法比拟的优势:高效,节能,长寿命等,但传统的LED电源驱动中因普遍使用电解电容,大大缩短了整体LED照明的寿命。为提高LED电源的寿命,针对路灯等大功率照明应用提出了一种三相无电解电容的LED驱动电源的设计方案。三相交流电作为输入,利用三相电之间的相位差,通过驱动电路并行向LED供电,使LED获得恒定的电流从而得到恒定光通量。根据叠加定理,给出了详细的理论推导和证明,并使用Matlab/simulink软件对于所提出的方法进行了仿真,仿真结果验证了该设计方案在无电解电容的情况下能够有效地驱动LED输出恒定光通量。
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| 关 键 词： | LED电源 电解电容 恒流源 功率因数矫正器 |
| 收稿时间： | 2014/12/15 0:00:00 |
| 修稿时间： | 2015/3/18 0:00:00 |
Three-phase LED Power Supply Without Electrolytic Capacitor |
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| FANG Wei,SHENG Chao,LIU Xiaodong,LIU Sucheng and DAI Quan.Three-phase LED Power Supply Without Electrolytic Capacitor[J].Journal of power supply,2015,13(2):27-32. |
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| Authors: | FANG Wei SHENG Chao LIU Xiaodong LIU Sucheng and DAI Quan |
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| Affiliation: | School of Electrical & Information Engineering of Anhui University of Technology,School of Electrical & Information Engineering of Anhui University of Technology,School of Electrical & Information Engineering of Anhui University of Technology,School of Electrical & Information Engineering of Anhui University of Technology, |
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| Abstract: | As the fourth generation light source, LED owns the advantages compared with other light sources:high efficiency, energy saving and long life. For the traditional LED power driven supply, the widespread use of electrolytic capacitors greatly reduces the life of LED lighting. To improve the life of the power supply of LED, the paper proposes a three-phase LED which drives the design without electrolytic capacitor in street lamps and other large power lighting applications. The three-phase electricity is the input. Using the phase difference among three phases power, LED is parallel powered by three-phase alternating current with the driving circuit. Therefore, LED can obtain constant flux. According to the superposition theory, the detailed theoretical derivations and proofs are given and the designed scheme is simulated by Matlab/Simulink software. Simulation results prove the designed strategy can effectively drive LED without electrolytic capacitor. |
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| Keywords: | LED source electrolytic capacitors Constant current source Power factor correction |
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