摘要：针对直流微电网光储系统中的光伏电池的随机性、不确定性问题，通过无源控制（Passivity Based Contrrol， PBC）方法与滑模控制（Sliding Mode Control， SMC）结合构成PBC-SMC控制的复合控制器，在此基础上设计储能变换器，提出电流内环采用PBC控制方案使得系统满足能量耗散定律自动收敛，为补偿电流精度电压外环采用SMC控制的双闭环控制方案。通过光照突变、负载突变以及二者同时突变的情况下仿真对比了PBC控制器和PBC-SMC控制器的性能，验证PBC-SMC复合控制的有效性，确保光伏-储能直流微网系统具有优良的稳态性能和动态性能。
英文摘要:
Abstract: For the characters of PV of strong randomness and uncertainty, the status of energy storage equipment is becoming more and more important in the DC microgrid. Therefore, this article adopts passive based control (PBC) method to control the energy storage converter, and then adds SMC controller to form a PBC-SMC controller to perform voltage and current double closed-loop control. Analyze the performance of PBC controller and PBC-SMC controller through simulation and verify the effectiveness of PBC-SMC compound control. Under the conditions of sudden light changes, sudden load changes, and both sudden changes, simulations verify that the independent photovoltaic-energy storage system has excellent steady-state performance and dynamic performance under the PBC-SMC compound control method.