光伏超级电容储能系统充放电的哈密顿控制
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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.
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.
引文
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[2]程志江,李永东,谢永流,等.带超级电容的光伏发电微网系统混合储能控制策略[J].电网技术,2015,39(10):2739-2745.
[3]Ou Y Q,Wen J Z,Wang L G,et al.A Novel Control Strategy of Super Capacitor-Battery Energy Storage System[C]∥International Conference on Electric Utility Deregulation and Restructuring and Power Technologies.Changsha,China:IEEE,2016:2089-2093.
[4]Liu J G,Zheng Z Q.Distributed Cooperative Current-Sharing Control of Coupled Parallel Charging Systems with Super-Capacitor Loads[C]∥International Conference on Control Conference.Dalian,China:IEEE,2017.
[5]林少伯,韩民晓,赵国鹏,等.基于随机预测误差的分布式光伏配网储能系统容量配置方法[J].中国电机工程学报,2013,33(4):25-33,5.
[6]Gao J,Yan G.A Novel Power Management Circuit Using a Super-Capacitor Array for Wireless Powered Capsule Robot[J].IEEE/ASME Transactions on Mechatronics,2017,22(3):1444-1455.
[7]李轩,李永丽,常晓勇.基于精确线性化理论的超级电容储能系统的非线性控制算法[J].电工技术学报,2016,31(21):12-20.
[8]刘斌,粟梅,贺建军,等.混合动力汽车DC/DC辅助电源轨迹规划及双积分滑模控制[J].电网技术,2014,38(4):918-924.
[9]邓哲,周峰武,金灵辉,等.基于超级电容储能与自适应功率预测模型的电梯制动能量回收系统并网功率优化控制[J].电工技术学报,2013,28(9):205-213.
[10]吴振威,蒋小平,马会萌,等.用于混合储能平抑光伏波动的小波包-模糊控制[J].中国电机工程学报,2014,34(3):317-324.
[11]Ortega R,Loría A,Ing P J N D,et al.Passivity-Based Control of Euler-Lagrange Systems[J].Communications&Control Engineering,1998,26(3):75-92.
[12]于海生,赵克友,郭雷,等.基于端口受控哈密顿方法的PMSM最大转矩/电流控制[J].中国电机工程学报,2006,26(8):82-87.
[13]Yu H S,Yu J P,Liu J,et al.Nonlinear Control of Induction Motors Based on State Error PCH and Energy-Shaping Principle[J].Nonlinear Dynamics,2013,72(1/2):49-59.
[14]Ortega R,Schaft A V D,Maschke B,et al.Interconnection and Damping Assignment Passivity-Based Control of Port-Controlled Hamiltonian Systems[J].Automatica,2002,38(4):585-596.
[15]Ortega R,Van d S A J,Mareels I,et al.Putting Energy Back in Control[J].Control Systems IEEE,2001,21(2):18-33.
[16]斯洛坦.应用非线性控制[M].北京:机械工业出版社,2006.
[17]王勇,于海生.基于端口受控哈密顿方法的Buck-Boost变换器控制[J].青岛大学学报:工程技术版,2007,22(3):32-37.
[18]和贝,张建成,钟云.基于双并联Boost-Buck电路的光伏发电系统电压稳定控制[J].电力自动化设备,2010,30(7):100-103.