摘要
为实现光伏超级电容储能系统的恒压充电和为负载恒压供电的控制目标,采用端口受控哈密顿(port controlled hamiltonian,PCH)控制方法,对超级电容充、放电过程进行控制。根据能量成形、互联配置及阻尼注入的原理,分别建立了超级电容充、放电电路的PCH模型,给出了超级电容充、放电时系统期望的能量函数、互联矩阵及阻尼矩阵,确立了系统的平衡点,求取了系统的控制器,并通过Simulink对超级电容充放电过程进行仿真实验。仿真结果表明,本文采用的PCH控制方法既实现了对超级电容的恒压充电,又实现了超级电容对负载的恒压放电,而且超级电容恒压放电系统有较强的抗负载扰动能力。该研究为超级电容的充放电控制提供了新思路和新方法。
In order to realize the constant voltage charging of the PV super-capacitor energy storage system and the control target of the constant voltage power supply,the port controlled Hamiltonian（PCH）control method is used to control the super capacitor charging and discharging process.According to the principle of energy shaping and interconnection and damping assignment,the PCH model of super capacitor charging and discharging circuit is established.The desired energy function,the interconnection matrix and the damping matrix of the super capacitor charge and discharge are given,and the equilibrium of the system has been determined,and the controller of the system is calculated,and the simulation is made for SC discharge process through simulink.The simulation results show that the PCH control method can realize the constant voltage charging of the super capacitor and the constant voltage discharge of the super capacitor to the load,and the super capacitor constant voltage discharge system has strong robustness.The research provides a new idea and method for super-capacitor charging and discharging control.
作者
李方辉
于海生
LI Fanghui;YU Haisheng(College of Automation Engineering,Qingdao University,Qingdao 266071,China)
出处
《青岛大学学报（工程技术版）》
CAS
2018年第2期12-16,共5页
Journal of Qingdao University(Engineering & Technology Edition)
基金
国家自然基金资助项目(61573203
61573204)
关键词
光伏系统
超级电容
PCH控制
能量成形
互联配置
阻尼注入
PV system
super capacitor
PCH controlled
energy forming
interconnection configuration
damping injection
作者简介
李方辉（1994-）,男,山东济南人,硕士研究生,主要研究方向为超级电容储能控制.;通讯作者：于海生（1963-）,男,博士,教授,博士生导师,主要研究方向为电能变换与电机系统的非线性控制.Email：yhsh_qd@qdu.edu.cn
