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Double modulation control scheme for a DC/DC converter applied to a battery charger

机译:用于电池充电器的DC / DC转换器的双调制控制方案

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摘要

In this study, a novel control scheme for controlling a self-oscillating half-bridge series resonant converter for DC source and secondary battery interface is proposed. This new control scheme is used to control and regulate the DC output current of the converter. The proposed control scheme has the advantages of not only wide power regulation range, but also ease of output current control. In addition, it can achieve a stable and efficient zero-voltage-switching (ZVS) in a whole load range. The control principles of the proposed method are described in detail and its validity is verified through simulated and experimental results based on a 24 V 125 Ah battery charger. The maximum charging efficiency of the proposed topology during the overall charging period exceeds 90%.
机译:在这项研究中,提出了一种用于控制直流源和二次电池接口的自激半桥串联谐振变换器的新型控制方案。这种新的控制方案用于控制和调节转换器的直流输出电流。所提出的控制方案不仅具有宽的功率调节范围,而且易于输出电流控制。此外,它可以在整个负载范围内实现稳定高效的零电压开关(ZVS)。详细描述了该方法的控制原理,并通过基于24 V 125 Ah电池充电器的仿真和实验结果验证了其有效性。在整个充电期间,拟议拓扑的最大充电效率超过90%。

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