Suzhou Electric Appliance Research Institute
期刊號(hào): CN32-1800/TM| ISSN1007-3175

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獨(dú)立型光儲(chǔ)直流微電網(wǎng)協(xié)調(diào)控制策略

來源:電工電氣發(fā)布時(shí)間:2022-11-26 11:26 瀏覽次數(shù):287

獨(dú)立型光儲(chǔ)直流微電網(wǎng)協(xié)調(diào)控制策略

張超1,2,馬幼捷1,2,何曉宇1,2,韓文凱1
(1 天津理工大學(xué) 電氣工程與自動(dòng)化學(xué)院,天津 300384;
2 天津理工大學(xué) 天津市復(fù)雜系統(tǒng)控制理論與應(yīng)用重點(diǎn)實(shí)驗(yàn)室,天津 300384)
 
    摘 要:針對(duì)獨(dú)立型直流微電網(wǎng)中光伏微源輸出功率的波動(dòng)性以及負(fù)荷變化的不確定性,提出了一種基于自抗擾的混合儲(chǔ)能系統(tǒng)控制策略,通過利用擴(kuò)張狀態(tài)觀測(cè)器以及非線性誤差反饋控制律對(duì)系統(tǒng)擾動(dòng)進(jìn)行實(shí)時(shí)估計(jì)并產(chǎn)生反向補(bǔ)償信號(hào),以實(shí)現(xiàn)對(duì)系統(tǒng)擾動(dòng)的直接整體削減。在 MATLAB/Simulink 中搭建了含光伏微源、混合儲(chǔ)能系統(tǒng)的獨(dú)立型光儲(chǔ)直流微電網(wǎng)模型,建立了兩種運(yùn)行模型下系統(tǒng)協(xié)調(diào)控制策略,通過仿真分析驗(yàn)證了所提控制策略對(duì)于提高系統(tǒng)的動(dòng)態(tài)響應(yīng)速度和抗干擾能力的有效性和可行性。
    關(guān)鍵詞: 直流微電網(wǎng);自抗擾控制;混合儲(chǔ)能;協(xié)調(diào)控制
    中圖分類號(hào):TM615 ;TM912     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1007-3175(2022)11-0011-06
 
Coordinated Control Strategy of Independent Optical Storage DC Microgrid
 
ZHANG Chao1,2, MA You-jie1,2, HE Xiao-yu1,2, HAN Wen-kai1
(1 School of Electrical Engineering and Automation, Tianjin University of Technology, Tianjin 300384, China;
2 Tianjin Key Laboratory of Control Theory and Application for Complex Systems, Tianjin University of Technology, Tianjin 300384, China)
 
    Abstract: The photovoltaic microsources of independent DC microgrid has volatile output power and uncertain load variation, so the paper proposes a control strategy of hybrid energy storage system based on auto disturbance rejection. It uses extended state observer and nonlinear state error feedback to estimate system disturbances in real time and generate reverse compensation signal to realize the direct overall reduction of system disturbance. In the paper, the authors establish an independent optical storage DC microgrid containing photovoltaic microsources and hybrid energy storage system in MATLAB/Simulink, build the system coordination control strategy suitable for two operation models, and verify the effectiveness and feasibility of the proposed control strategy to increase the dynamic response speed and anti-disturbance capability by simulation analysis.
    Key words: DC microgrid; auto disturbance rejection control; hybrid energy storage; coordinated control
 
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