| DC/DC变换器滤波电容老化预测方法 |
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| 引用本文： | 吕志立,王荣杰,周海峰.DC/DC变换器滤波电容老化预测方法[J].电子测量与仪器学报,2016,30(7):1068-1075. |
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| 作者姓名： | 吕志立 王荣杰 周海峰 |
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| 作者单位： | 集美大学轮机工程学院厦门361021,1. 集美大学轮机工程学院厦门361021; 2. 福建省船舶与海洋工程重点实验室厦门361021,1. 集美大学轮机工程学院厦门361021; 2. 福建省船舶与海洋工程重点实验室厦门361021 |
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| 基金项目： | 国家自然科学基金(51309116)、福建省自然科学基金(2016J01736)、福建省教育厅杰青项目(JA14169)、人工智能四川省重点实验室开放课题 (2014RYJ03)、福建省大学生创新创业训练计划(201610390067)、集美大学大学生创新创业训练计划(xj201610390062 )资助项目 |
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| 摘 要： | 针对DC/DC变换器的滤波电容器老化的预测,首先推导DC/DC变换器滤波电容器的等效模型,然后推导DC/DC变换器的等效串联电阻等效电路,进而提出一种预测滤波电容器老化的方法,将负载电压依次通过带通滤波器、均方根模块和低通滤波器处理,最后根据输出的响应规律分析电容器老化情况。Buck变换器、Boost变换器和Buck-Boost变换器的仿真结果都表明该预测方法不仅能预测DC/DC变换器滤波电容器老化的情况,还能估算出电容老化导致故障产生时的临界状态,表明该预测方法具有可行性。
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| 关 键 词： | DC/DC变换器 电容器等效模型 滤波电容老化 预测 Buck 变换器 |
Prediction of filter capacitor aging of DC/DC converter |
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| Lv Zhili,Wang Rongjie and Zhou Haifeng.Prediction of filter capacitor aging of DC/DC converter[J].Journal of Electronic Measurement and Instrument,2016,30(7):1068-1075. |
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| Authors: | Lv Zhili Wang Rongjie and Zhou Haifeng |
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| Affiliation: | School of Marine Engineering, Jimei University, Xiamen 361021, China,1. School of Marine Engineering, Jimei University, Xiamen 361021, China;
2. Fujian Provincial Key Laboratory of Naval Architecture and Ocean Engineering, Xiamen 361021, China and 1. School of Marine Engineering, Jimei University, Xiamen 361021, China;
2. Fujian Provincial Key Laboratory of Naval Architecture and Ocean Engineering, Xiamen 361021, China |
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| Abstract: | Aiming at the prediction analysis of filter capacitor aging of DC/DC converter, the filter capacitor equivalent model of DC/DC converter is firstly derived, then the equivalent series resistance equivalent circuit of DC/DC converter is also derived, and finally a method to predict the aging of the filter capacitor is proposed. Load voltage will pass through the band pass filter, the RMS module and the low pass filter, and the situation of capacitor aging is analyzed according to the response. The simulation results of Buck converter, Boost converter and Buck Boost converter show that the proposed method can predict the situation of capacitor aging, and estimate the critical state of capacitor aging, which indicates that the prediction method is feasible. |
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| Keywords: | DC/DC converter equivalent model of capacitor filter capacitor aging prediction Buck converter |
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