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为了提高矿井提升机储能系统放电效率,针对提升机微网电压幅值波动的问题,采用动态调整直流母线给定电压的方法,设计了2个模糊逻辑控制器,在线调整直流母线给定电压,并作为双闭环控制系统的给定电压,与传统控制系统相结合,作用于直流-直流变换器。仿真与实验结果表明,这种控制策略能够有效地降低电网能量消耗,提高提升机回收能量利用率。
In order to improve the discharging efficiency of mine hoist energy storage system, aiming at the fluctuation of voltage amplitude of hoist microgrid, two fuzzy logic controllers are designed by dynamically adjusting the given voltage of DC bus. The DC bus voltage is adjusted online , And as a double closed-loop control system for a given voltage, combined with the traditional control system, acting on the DC - DC converter. Simulation and experimental results show that this control strategy can effectively reduce the power consumption of the power grid and improve the energy recovery efficiency of the hoist.