The invention discloses a hybrid power locomotive and an energy balance control method and a system thereof. The rotating speed of a power pack is calculated according to the power needing to be exerted by the power pack, the power pack is made to operate at the rotating speed, the power of the power pack is brought into full play, and the efficiency under the power is improved; when the actual output voltage of the power pack is higher than a target voltage value, redundant energy is stored in the energy storage element, energy waste is avoided while it is guaranteed that the power of the power pack is brought into full play; and when the actual output voltage of the power pack is lower than the target voltage value, the energy storage element releases energy to provide energy for a load,and overload of the power pack is avoided; according to the control method, the energy utilization rate is maximized through self-adaptive matching of the rotating speed and the power, dynamic balance control over the actual output voltage of the power pack is achieved through charging and discharging control over the energy storage element, and energy waste and power pack overload are avoided.
本发明公开了一种混合动力机车及其能量平衡控制方法与系统,通过动力包所需发挥功率计算动力包的转速,并使动力包以该转速运行,使动力包的功率得到充分发挥,提高了在该功率下的效率;当动力包实际输出电压高于电压目标值时,将多余的能量存储在储能元件中,在保证动力包功率充分发挥的同时避免了能源浪费,当动力包实际输出电压低于电压目标值时,储能元件释放能量为负载提供能量,避免了动力包过载;该控制方法通过转速与功率的自适应匹配,使能源利用率最大化,通过对储能元件的充放电控制,实现了动力包实际输出电压的动态平衡控制,避免了能源的浪费和动力包过载。
Hybrid power locomotive and energy balance control method and system thereof
混合动力机车及其能量平衡控制方法与系统
2020-09-25
Patent
Electronic Resource
Chinese
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