反激变压器开关矩阵均衡电路及滑动窗口均衡策略研究

Research on Flyback Transformer Equalization Circuit and Sliding Window Equalization Strategy

摘要: 传统均衡电路存在均衡速度慢，均衡方式单一，均衡效率低等问题，为此设计了反激变压器开关矩阵均衡电路。该电路通过控制不同开关的打开与闭合，实现了电池组内电池对电池，电池组对电池，电池对电池组多种均衡方式，提高了均衡电路的灵活性。依据该均衡电路设计了滑动窗口均衡策略，具有良好的性能。实验结果表明，在相同的初始条件下，滑动窗口均衡策略相较于传统设计，在保证均衡效率的前提下，均衡速度提高了38%，均衡时间缩短了28%。

Abstract: Traditional equalization circuit has the problems of slow equalization speed, single equalization mode and low equalization efficiency, so a flyback transformer switch matrix equalization circuit is designed. By controlling the opening and closing of different switches, the circuit realizes a variety of equalization modes of cell to cell, cell to string, string to cell, and improves the flexibility of the equalization circuit. The sliding window equalization strategy is designed according to the equalization circuit, which has good performance. The experimental results show that under the same initial conditions, compared with the traditional design, the sliding window balancing strategy can improve the equalization speed by 38% and shorten the equalization time by 28% while ensuring the balancing efficiency.