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一种基于准谐振LC变换器和升压变换器的零电流开关与零电压差电池均衡器

A Cell-to-Cell Battery Equalizer With Zero-Current Switching and Zero-Voltage Gap Based on Quasi-Resonant LC Converter and Boost Converter

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中文摘要

针对传统电池均衡器体积大、成本高及开关损耗大等问题,本文提出了一种基于准谐振LC变换器(QRLCC)和Boost变换器的直接电池均衡方案。该方案通过准谐振技术实现了零电流开关(ZCS),有效降低了开关损耗,并消除了电池间的零电压差(ZVG),提升了均衡效率与系统功率密度。

English Abstract

In conventional equalizers, the facts of bulky size and high cost are widespread. Particularly, the zero-switching loss and zero-voltage gap (ZVG) between cells are difficult to implement due to the high-frequency hard switching and the voltage drop across power devices. To overcome these difficulties, a direct cell-to-cell battery equalizer based on quasi-resonant LC converter (QRLCC) and boost d...
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SunView 深度解读

该技术对阳光电源PowerTitan和PowerStack等储能系统具有重要参考价值。在大型储能系统中,电池组的一致性直接影响系统寿命与可用容量,高效的均衡电路能显著降低BMS的复杂度和热管理压力。该方案采用的准谐振技术有助于提升均衡模块的功率密度,减小体积,符合阳光电源储能产品向高集成度、高效率演进的趋势。建议研发团队评估该拓扑在模块化储能单元中的应用潜力,以优化电池组的主动均衡策略,进一步提升系统全生命周期的经济性。