基于MPC的光储直流微电网母线电压平抑研究

罗朝旭; 禹康; 曹云洲; 程易楠

doi:10.19912/j.0254-0096.tynxb.2025-0288

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (7) : 632-640. DOI: 10.19912/j.0254-0096.tynxb.2025-0288

基于MPC的光储直流微电网母线电压平抑研究

罗朝旭, 禹康, 曹云洲, 程易楠

作者信息 +

RESEARCH ON BUS VOLTAGE STABILIZATION OF PHOTOVOLTAIC STORAGE DC MICROGRID BASED ON MPC

Luo Zhaoxu, Yu Kang, Cao Yunzhou, Cheng Yinan

Author information +

文章历史 +

摘要

针对光伏输出随机波动导致直流母线电压产生较大波动的问题,提出一种基于模型预测控制（MPC）的ESS控制方案,用来平抑直流微电网母线电压。该方法可根据母线电压变化准确生成ESS输出功率参考,同时使用带遗忘因子的递推最小二乘法进行参数在线辨识,对模型参数滚动优化,从而减少光伏波动的影响。同时考虑ESS的SOC作为额外的约束条件,利用李雅普诺夫方法得到目标函数中权重系数的选取原则,从而很好地实现母线电压波动范围与ESS健康度之间的权衡。该方法的突出优点为ESS输出功率参考指令可根据本地测量数据直接计算生成,无需与外界通信,降低了系统成本并提高可靠性。仿真和实验结果验证了该方法的正确性和有效性。

Abstract

A model predictive control （MPC） based ESS control scheme is proposed to stabilize the DC microgrid bus voltage fluctuations caused by random fluctuations in photovoltaic output. This method can accurately generate ESS output power reference based on changes in bus voltage, and use recursive least squares method with forgetting factor for online parameter identification and rolling optimization of model parameters to reduce the impact of photovoltaic fluctuations. At the same time, considering the SOC of ESS as an additional constraint condition, the principles for selecting weight coefficients in the objective function are obtained using the Lyapunov method, thus achieving a good balance between the fluctuation range of bus voltage and the health of ESS. The outstanding advantage of this method is that the ESS output power reference instruction can be directly calculated and generated based on local measurement data, without the need for external communication, reducing system costs and improving reliability. The simulation and experimental results have verified the correctness and effectiveness of the method.

导出引用

罗朝旭, 禹康, 曹云洲, 程易楠. 基于MPC的光储直流微电网母线电压平抑研究[J]. 太阳能学报. 2026, 47(7): 632-640 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0288

Luo Zhaoxu, Yu Kang, Cao Yunzhou, Cheng Yinan. RESEARCH ON BUS VOLTAGE STABILIZATION OF PHOTOVOLTAIC STORAGE DC MICROGRID BASED ON MPC[J]. Acta Energiae Solaris Sinica. 2026, 47(7): 632-640 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0288

中图分类号： TM464

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