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根据矿用电动轮卡车在下坡和减速时产生大量电能的运行特点提出储能方案,并着重对能量变换器的稳定性进行研究。根据矿用电动轮卡车储能系统能量双向流动的特点,引入半桥式DC/DC变换器。在对半桥式DC/DC变换器工作原理分析的基础上,推导出相应的传递函数,并对控制方法进行研究,建立统一的数学模型进行仿真分析和优化,从而实现半桥式DC/DC变换器的双向稳定控制。
The energy storage scheme is put forward according to the operating characteristics of mine electric wheel truck generating a large amount of electric power during downhill and deceleration, and the stability of the energy converter is mainly studied. According to the characteristics of bidirectional flow of energy in the energy storage system of a mine electric wheel truck, a half-bridge DC / DC converter is introduced. Based on the analysis of the working principle of the half-bridge DC / DC converter, the corresponding transfer function is deduced, and the control method is studied. A unified mathematical model is established for simulation analysis and optimization so that the half-bridge DC / DC converter Two-way converter stability control.