Bus-type lithium battery pack balance system prediction control method

The invention provides a bus-type lithium battery pack balance system prediction control method, which comprises steps: 1, a state space model for the lithium battery pack balance system is built; 2, an outer loop controller adopts the prediction control method, the balance speed and the balance efficiency are considered at the same time, and the power of a single battery in the battery pack is predicted and controlled; and 3, an inner loop controller adopts a PI controller form to realize that power of the battery changes according to a scheduled track through controlling the balance current of the single battery and the energy bus voltage. 本发明提出了种总线式锂电池组均衡系统预测控制方法，包括：步骤1，建立锂电池组均衡系统的状态空间模型；步骤2，外环控制器采用预测控制方法，同时考虑均衡速度和均衡效率，对电池组中单体电池的电量进行预测控制；步骤3，内环控制器采用PI控制器的形式通过控制单体电池的均衡电流和能量总线电压实现电池的电量按照预定的轨迹变化。