基于混合储能的直流母线电压有限时间无源控制方法
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摘要
为提高直流微网中母线电压稳定速度,增强抗干扰性,结合有限时间控制理论和无源控制理论,提出一种新的基于混合储能直流母线电压有限时间无源控制方法。针对无源控制中渐近收敛问题,运用有限时间控制理论,引入最终吸引子,改进渐近收敛性能为有限时间收敛;基于混合储能系统数学模型,设计混合储能系统的有限时间无源控制器;以独立光伏发电系统为例,搭建系统仿真平台,同时为了对比控制性能,给出混合储能系统的无源控制器。仿真结果表明,所提出的方法使直流母线电压在光照强度、负荷变化的情况下具有更快的收敛性能和更强的抗干扰性。
For increasing the DC bus voltage convergence performance and enhancing its anti-interference,a new finitetime passivity-based control(FT-PBC)method for DC bus voltage based on hybrid energy storage system(HESS)is proposed. For the problem of asymptotic convergence in passivity-based control(PBC),the performance of asymptotic convergence was transformed into finite-time convergence by using the theory of finite-time control and introducing terminal attractors;The FT-PBC controller of HESS is designed based on the mathematical model of HESS;The simulation of stand-alone photovoltaic(PV)system are accomplished and the PBC controller of HESS is designed for comparing and evaluating the proposed method. The results demonstrate that the DC bus voltage with FT-PBC controller has the faster and stronger performance in convergence and anti-interference for load resistance and solar irradiance changes.
For increasing the DC bus voltage convergence performance and enhancing its anti-interference,a new finitetime passivity-based control(FT-PBC)method for DC bus voltage based on hybrid energy storage system(HESS)is proposed. For the problem of asymptotic convergence in passivity-based control(PBC),the performance of asymptotic convergence was transformed into finite-time convergence by using the theory of finite-time control and introducing terminal attractors;The FT-PBC controller of HESS is designed based on the mathematical model of HESS;The simulation of stand-alone photovoltaic(PV)system are accomplished and the PBC controller of HESS is designed for comparing and evaluating the proposed method. The results demonstrate that the DC bus voltage with FT-PBC controller has the faster and stronger performance in convergence and anti-interference for load resistance and solar irradiance changes.
引文
[1]张国驹,唐西胜,齐智平.超级电容器与蓄电池混合储能系统在微网中的应用[J].电力系统自动化,2010,34(12):85-89.[1]Zhang Guoju,Tang Xisheng,Qi Zhiping.Application of hybrid energy storage system of super-capacitors and battery in a micro-grid[J].Automatic of Electric Power System,2010,34(12):85-89.
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[11]Lin Chuan-Kai,Wang Sheng-De.Fuzzy system identification using an adaptive learning rule with terminal attractors[J].Fuzzy Sets and Systems,1999,101(3):343-352.
[12]Bhat S P,Bernstein D S.Finite-time stability of continuous autonomous systems[J].SIAM Journal on Control and Optimization,2000,38(3):751-766.
[13]Bhat S P,Bernstein D S.Continuous finite-time stabilization of the translational and rotational double integrators[J].IEEE Transactions on Automatic Control,2002,43(5):678-682.
[14]Hong Yiguang,Jiang Zhong-Ping.Finite-Time stabilization of nonlinear systems with parametric and dynamic uncertainties[J].IEEE Transactions on Automatic Control,2006,51(12):1950-1952.
[15]Song Ting-Ting,Chung Shu-hung.Boundary control of boost converters using state-energy plane[J].IEEETransactions on Power Electronics,2008,23(2):551-563.
[16]高为炳.变结构控制理论基础[M].北京:中国科学技术出版社,1990.[16]Gao Weibing.Theoretical basis of variable structure control[M].Beijing:China Science and Technology Press,1990.
[17]符江升.基于超级电容储能的光伏发电系统技术研究[D].成都:西南交通大学,2009.[17]Fu Jiangsheng.Research of photovoltaic power generation system based on the super-capacitor energy storage[D].Chengdu:Southwest Jiaotong University,2009.
[2]Etxeberria A,Vechiu I,Cambilong H,et al.Comparison of sliding mode and PI control of a hybrid energy storage system in a microgrid application[J].Energy Procedia,2011,12:966-974.
[3]Kraa O,Ghodbane H,Saadi R,et al.Energy management of fuel cell/supercapacitor hybrid source based on linear and sliding mode control[J].Energy Procedia,2015,74:1258-1264.
[4]Hilairet M,Ghanes M,Béthoux O,et al.A passivitybased controller for coordination of converters in a fuel cell system[J].Control Engineering Practice,2013,21(8):1097-1109.
[5]李斌,宝海龙,郭立.光储微电网孤岛系统的储能控制策略[J].电力自动化设备,2014,34(3):8-15.[5]Li Bin,Bao Hailong,Guo Li.Strategy of energy storage control for islanded microgrid with photovoltaic and energy storage systems[J].Electric Power Automation Equipment,2014,34(3):8-15.
[6]Bhat S P,Bernstein D S.Continuous finite-time stabilization of the translational and rotational double integrators[J].IEEE Transactions on Automatic Control,2002,43(5):678-682.
[7]李世华,丁世宏,都海波,等.非光滑控制理论与应用[M].北京:科学出版社,2013.[7]Li Shihua,Ding Shihong,Dou Haibo,et al.Nonsmooth control theory and application[M].Beijing:Science Press,2013.
[8]Komurcugil H.Adaptive terminal sliding-mode control strategy for DC-DC buck converters[J].ISATransactions,2012,51(6):673-681.
[9]张小华,刘慧贤,丁世宏,等.基于扰动观测器和有限时间控制的永磁同步电机调速系统[J].控制与决策,2009,24(7):1028-1032.[9]Zhang Xiaohua,Liu Huixian,Ding Shihong,et al.PMSM speed-adjusting system based on disturbance observer and finite-time control[J].Control and Decision,2009,24(7):1028-1032.
[10]王久和.无源控制理论及其应用[M].北京:电子工业出版社,2010.[10]Wang Jiuhe.Passivity-based control theory and its application[M].Beijing:Publishing House of Electronics Industry,2010.
[11]Lin Chuan-Kai,Wang Sheng-De.Fuzzy system identification using an adaptive learning rule with terminal attractors[J].Fuzzy Sets and Systems,1999,101(3):343-352.
[12]Bhat S P,Bernstein D S.Finite-time stability of continuous autonomous systems[J].SIAM Journal on Control and Optimization,2000,38(3):751-766.
[13]Bhat S P,Bernstein D S.Continuous finite-time stabilization of the translational and rotational double integrators[J].IEEE Transactions on Automatic Control,2002,43(5):678-682.
[14]Hong Yiguang,Jiang Zhong-Ping.Finite-Time stabilization of nonlinear systems with parametric and dynamic uncertainties[J].IEEE Transactions on Automatic Control,2006,51(12):1950-1952.
[15]Song Ting-Ting,Chung Shu-hung.Boundary control of boost converters using state-energy plane[J].IEEETransactions on Power Electronics,2008,23(2):551-563.
[16]高为炳.变结构控制理论基础[M].北京:中国科学技术出版社,1990.[16]Gao Weibing.Theoretical basis of variable structure control[M].Beijing:China Science and Technology Press,1990.
[17]符江升.基于超级电容储能的光伏发电系统技术研究[D].成都:西南交通大学,2009.[17]Fu Jiangsheng.Research of photovoltaic power generation system based on the super-capacitor energy storage[D].Chengdu:Southwest Jiaotong University,2009.
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