Island direct current delivery AGC model prediction control method considering energy storage SOC recovery

The invention provides an island direct current delivery AGC model prediction control method considering energy storage SOC recovery. The method comprises the steps of building an island power grid state space model, predicting an output value of ACE through an obtained system dynamic state equation matrix, building a rolling optimization target function, dynamically adjusting the weight accordingto an ACE prediction result, and carrying out the rolling optimization, meanwhile, conducting feedback verification by means of prediction errors, thereby improving prediction accuracy, and finally,when the ACE predicted value is small, recovering the energy storage state of charge, and when the ACE predicted value is relatively large, controlling the frequency modulation unit to output so as toenable the AGC model with the minimum ACE to predict the control target. 本发明提出一种计及储能SOC恢复的孤岛直流外送AGC模型预测控制方法，构建孤岛电网状态空间模型，利用所获得系统动态状态方程矩阵预测ACE的输出值，建立滚动优化目标函数，根据ACE预测结果动态调节权重进行滚动优化，同时借助预测误差进行反馈校验，提升预测准确度。最终实现当ACE预测值较小时恢复储能荷电状态；当