Tracking control of DC micro-grid based on the sampled H∞control with the quantisation error  

作　　者：Zhicen Lai Zhenhua Li Gang Bao Xia Zhao 

机构地区：[1]School of Electrical Engineering and New Energy,China Three Gorges University,Yichang,People’s Republic of China [2]Hubei Key Laboratory of Cascaded Hydropower Stations Operation and Control,China Three Gorges University,Yichang,People’s Republic of China

出　　处：《Journal of Control and Decision》2019年第2期122-144,共23页控制与决策学报（英文）

基　　金：The work was supported by the Natural Science Foundation of China[grant numbers 61673188,61603212,61761130081 and 61876097];the Foundation for Innovative Research Groups of Hubei Province of China[grant number 2017CFA005];the Fundamental Research Funds for the Central Universities of HUST[grant number 2018KFYXKJC051];the Research Funds for Hubei Key Laboratory of Applied Mathematics(Hubei University).

摘　　要：This paper investigates stability problem of DC micro-grid under disturbance.Tracking control based on the sampled H∞controller is designed for solving such problem.First,it sets up the model of the DC micro-grid with the energy storage unit.Next,it presents the model for the closed-loop control system and the design method for the sampled state feedback controller.Then,it gives the sampled H∞performance analysis by considering the sampled quantisation error as an external disturbance term of the system.It derives one sufficient condition for stabilisation of the DC micro-grid based on linear matrix inequalities and Lyapunov theory.Finally,simulations verify the validity of our results.

关 键 词：DC micro-grid stability the sampled H∞control the quantisation error LMI 

分 类 号：O17[理学—数学]