1.School of Automation Science and Electrical Engineering Beihang University Beijing 100191 China;
2.State Grid Beijing Changping Electric Power Supply Corporation Beijing 100031 China
With the rapid development of distributed photovoltaic energy storage system,the ability of tracking power reference is summarized systematically in source side and grid side.Firstly,this paper proposes a nonlinear affine model of the non-isolated bi-directional DC-DC converter in energy storage system,establishes the voltage tracking parameter transformation model,and gets the nonlinear state space descriptions on large signal modeling method.Then based on the state-feedback linearization conditions,the virtual output from the nonlinear state space descriptions to the state space descriptions after non-linear transformation is established.The controller can be designed by the analysis of the impact,which are the system parameters of second-order classical control system and the calculation of state-feedback coefficient in the state space.Finally,the results of the numerical simulation and experiment reveal that the control methods in this paper has the rapid and accurate ability of tracking power reference.It is has strong robustness under the conditions of DC-link voltage fluctuation,the load disturbance,and the inaccurate system parameters.The effectiveness of proposed method was verified by simulation and experiment results.
[1] 张新昌.微电网运行控制解决方案及应用[J].电力系统保护与控制,2014,42(10):141-146.
Zhang Xinchang.Solution and application of micro-grid operation control[J].Power System Protection and Control,2014,42(10):141-146.
[2] 李题印,韩永强,胡晓琴,等.分布式发电接入电网的静态电压稳定特性及影响分析[J].电力系统保护与控制,2014,42(12):8-13.
Li Tiyin,Han Yongqiang,Hu Xiaoqin,et al.Optimization of distributed energy system and benefit analysis of energy saving and emission reduction[J].Power System Protection and Control,2014,42(12):8-13.
[3] 钱科军,袁越,石晓丹,等.分布式发电的环境效益分析[J].中国电机工程学报,2008,28(29):11-15.
Qian Kejun,Yuan Yue,Shi Xiaodan,et al.Environmental benefits analysis of distributed generation[J].Proceedings of the CSEE,2008,28(29):11-15.
[4] 王成山,武震,李鹏.微电网关键技术研究[J].电工技术学报,2014,29(2):1-12.
Wang Chengshan,Wu Zhen,Li Peng.Research on key technologies of microgrid[J].Transactions of China Electrotechnical Society,2014,29(2):1-12.
[5] 刘舒,李正力,王翼,等.含分布式发电的微电网中储能装置容量优化配置[J].电力系统保护与控制,2016,44(3):78-84.
Liu Shu,Li Zhengli,Wang Yi,et al.Optimal capacity allocation of energy storage in micro-grid with distributed generation[J].Power System Protection and Control,2016,44(3):78-84.
[6] 沈鑫,曹敏.分布式电源并网对配电网的影响研究[J].电工技术学报,2015,30(增刊1):346-351.
Shen Xin,Cao Min.Research on the influence of distributed power grid for distribution network[J].Transactions of China Electrotechnical Society,2015,30(S1):346-351.
[7] 朱剑锋.双向DC-DC变换器的建模及多项式控制器设计[J].辽宁工程技术大学:自然科学版,2016,35(3):318-325.
Zhu Jianfeng.Bidirectional DC-DC converter modeling and polynomial controller design[J].Journal of Liaoning Technical University:Natural Science,2016,35(3):318-325.
[8] Kavya G,Vachana K M D S,Sumathi A,et al.Matlab/Simulink based closed loop operation of semi-dual active bridge DC-DC converter[C]//International Conference on Science,Engineering and Management Research (ICSEMR),Chennai,India,2014:1-5.
[9] 胡斌,杨中平,黄先进,等.用于超级电容储能系统的三电平双向直流变换器及其控制[J].电工技术学报,2015,30(8):83-89.
Hu Bin,Yang Zhongping,Huang Xianjin,et al.Three-level bi-directional DC-DC converter and its control strategy[J].Transactions of China Electrotechnical Society,2015,30(8):83-89.
[10]王久和.基于EL模型的 Boost 型 DC /DC 变换器无源控制器[J].北京信息科技大学学报,2012,27(5):17-20.
Wang Jiuhe.Passivity based controller of Boost type DC-DC converter based on EL model[J].Journal of Beijing Information Science and Technology University,2012,27(5):17-20.
[11]邓卫华,张波,邱东元,等.电流连续型Boost变换器状态反馈精确线性化与非线性PID控制研究[J].中国电机工程学报,2004,24(8):45-50.
Deng Weihua,Zhang Bo,Qiu Dongyuan,et al.The research of state variable feedback linearization method on the CCM boost converter and nonlinear PID control law[J].Proceedings of the CSEE,2004,24(8):45-50.
[12]武伟,谢少军,张曌,等.基于MMC 双向 DC-DC 变换器的超级电容储能系统控制策略分析与设计[J].中国电机工程学报,2014,34(27):4568-4575.
Wu Wei,Xie Shaojun,Zhang Zhao,et al.Analysis and design of control strategy for MMC-BDC based ultra-capacitors energy storage systems[J].Proceedings of the CSEE,2014,34(27):4568-4575.
[13]Mahmud M A,Pota H R,Hossain M J.Full-order nonlinear observer-based excitation controller design for interconnected power systems via exact linearization approach[J].Electrical Power and Energy Systems,2012,41:54-62.
[14]Mahmud M A,Pota H R,Aldeen M,et al.Partial feedback linearizing excitation controller for multimachine power systems to improve transient stability[J].IEEE Transactions on Power Systems,2014,29(2):561-571.
[15]帅定新,谢运祥,王晓刚.Boost变换器状态反馈的精确线性化控制[J].华南理工大学学报:自然科学版,2009,37(2):134-139.
Shuai Dingxin,Xie Yunxiang,Wang Xiaogang.Exact linearization control of state feedback for Boost converter[J].Journal of South China University of Technology:Natural Science Edition,2009,37(2):134-139.
[16]Yan Liu,Dirk Sffker.Robust control approach for input-output linearizable nonlinear systems using high-gain disturbance observer[J].International Journal of Robust Nonlinear Control,2014,24:326-339.
[17]帅定新,谢运祥,王晓刚,等.Boost 变换器非线性电流控制方法[J].中国电机工程学报,2009,29(15):15-21.
Shuai Dingxin,Xie Yunxiang,Wang Xiaogang,et al.Nonlinear current control method for Boost converter[J].Proceedings of the CSEE,2009,29(15):15-21.
[18]乐江源,谢运祥,洪庆祖,等.Boost变换器精确反馈线性化滑模变结构控制[J].中国电机工程学报,2011,31(30):16-23.
Le Jiangyuan,Xie Yunxiang,Hong Qingzu,et al.Sliding mode control of Boost converter based on exact feedback linearization[J].Proceedings of the CSEE,2011,31(30):16-23.
[19]方炜,刘晓东,刘宿城,等.基于分段仿射模型的DC-DC变换器预测控制研究[J].电子科技大学学报,2015,44(3):381-386.
Fang Wei,Liu Qingdong,Liu Sucheng,et al.Predictive control of DC-DC converter based on PWA model[J].Journal of University of Electronic Science and Technology of China,2015,44(3):381-386.
[20]Sira-Ramirez H,Perez-Moreno R A,Ortega R,et al.Passivity based controllers for the stabilization of DC-to-DC power converters[J].Automatica,1997,33(4):499-513.
[21]Krener A J.On the equivalence of control systems and the linearization of nonlinear systems[J].SIAM Journal on Control,1973,11(4):670-676.
[22]Su Renjing.On the linear equivalents of nonlinear systems[J].Systems and Control Letters,1982,2(1):48-52.
[23]程代展.非线性系统的微分几何理论[M].北京:科学出版社,1982.
2016, Vol. 31 
