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首页> 外文会议>2017 Intl Conf on Advanced Control Circuits Systems amp; 2017 Intl Conf on New Paradigms in Electronics amp; Information Technology >Ultra sparse matrix rectifier for battery charging application
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Ultra sparse matrix rectifier for battery charging application

机译：超稀疏矩阵整流器，用于电池充电应用

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摘要

Charging batteries with constant-current/constant-voltage (CCCV) scheme prolongs the battery life and improve the charging efficiency. In battery charging applications, using ultra-sparse matrix rectifier (USMR) has many advantages over the bridge rectifier circuits as it has minimum number of switches, it possesses sinusoidal input currents with controllable displacement angle by proper switching strategy. So, a unity power factor can be achieved. This paper presents the use of USMR in battery charging applications using of space vector modulation (SVM) to provide sinusoidal input currents for USMR. Also controlling of output current or voltage facilitates charging control during charging scheme to preserve the battery life. The three modes of CCCV charging scheme are trickle mode, constant current mode, and constant voltage mode. The output dc voltage of the rectifier is controlled by controlling the modulation index m for the rectifier, hence the output dc current is consequently controlled. The input side LC low-pass power filter is designed to filter out the harmonics in the input currents due to switching frequency. This type of charger is candidated for high power high charging voltage systems to improve the charging efficiency. The simulation results show that the proposed control scheme achieves sinusoidal input current with a unity power factor. Also, the total harmonic distortion in the input line current decreases as the charging current increases.
机译：使用恒流/恒压（CCCV）方案对电池充电可延长电池寿命并提高充电效率。在电池充电应用中，与桥式整流器电路相比，使用超稀疏矩阵整流器（USMR）具有许多优势，因为它具有最少的开关数量，通过适当的开关策略具有可控制位移角的正弦输入电流。因此，可以实现单位功率因数。本文介绍USMR在使用空间矢量调制（SVM）为USMR提供正弦输入电流的电池充电应用中的使用。同样，输出电流或电压的控制有助于在充电方案期间进行充电控制，以保持电池寿命。 CCCV充电方案的三种模式为trick流模式，恒定电流模式和恒定电压模式。通过控制整流器的调制指数m来控制整流器的输出dc电压，因此输出dc电流被控制。输入侧LC低通功率滤波器设计用于滤除由于开关频率引起的输入电流中的谐波。这种类型的充电器可用于大功率高充电电压系统，以提高充电效率。仿真结果表明，所提出的控制方案以功率因数为单位实现了正弦输入电流。而且，输入线电流中的总谐波失真会随着充电电流的增加而减小。

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