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

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    基于雙回路協(xié)調(diào)控制的飛輪儲能系統(tǒng)自抗擾技術(shù)研究

    來源:電工電氣發(fā)布時(shí)間:2022-05-28 10:28 瀏覽次數(shù):534

    基于雙回路協(xié)調(diào)控制的飛輪儲能系統(tǒng)自抗擾技術(shù)研究

    鄭博文,高春輝,楊朋威,陳肖璐,劉春暉,任正,陳更,許才,王純
    (國網(wǎng)內(nèi)蒙古東部電力有限公司電力科學(xué)研究院,內(nèi)蒙古 呼和浩特 010010)
     
        摘 要:飛輪儲能對環(huán)境的要求和影響非常低,充放電深度和健康狀態(tài)預(yù)測相對簡單,且方便實(shí)現(xiàn)模塊化應(yīng)用?;诒晨勘畴p PWM 變頻器和永磁同步電機(jī)的數(shù)學(xué)模型,在 MATLAB/Simulink 中搭建了飛輪儲能系統(tǒng)單機(jī)并網(wǎng)仿真模型,通過分析復(fù)雜工況下的仿真結(jié)果,發(fā)現(xiàn)了系統(tǒng)抗擾動(dòng)能力差、直流母線電壓波動(dòng)較大的問題,經(jīng)理論分析,提出了一種背靠背變頻器的優(yōu)化雙回路前饋協(xié)調(diào)控制策略,該方法在傳統(tǒng)網(wǎng)側(cè)變換器電流內(nèi)環(huán)控制結(jié)構(gòu)中附加了電容電流控制環(huán),同時(shí)引用負(fù)載電流估算值和電網(wǎng)電壓作為前饋項(xiàng),通過仿真分析,驗(yàn)證了該控制策略的有效性,能夠?qū)崿F(xiàn)兩側(cè)變換器的一體化協(xié)調(diào)控制,整體提高了飛輪儲能系統(tǒng)的自抗擾能力和動(dòng)態(tài)性能。
        關(guān)鍵詞: 背靠背變頻器;飛輪儲能系統(tǒng);矢量控制;前饋控制;負(fù)載擾動(dòng);脈寬調(diào)制技術(shù)
        中圖分類號:TM919    文獻(xiàn)標(biāo)識碼:A     文章編號:1007-3175(2022)05-0008-07
     
    Research on Auto Disturbance Rejection Technology of Flywheel Energy Storage
    System Based on Dual-Loop Coordinated Control Strategy
     
    ZHENG Bo-wen, GAO Chun-hui, YANG Peng-wei, CHEN Xiao-lu, LIU Chun-hui, REN Zheng, CHEN Geng, XU Cai, WANG Chun
    (State Grid East Inner Mongolia Electric Power Research Institute, Hohhot 010010, China)
     
        Abstract: The flywheel energy storage has little need for the circumstance, and it has a low impact on the environment. In addition, the charging depth of the flywheel energy storage is simple, and the prediction of the health condition is basic.This paper constructed a single-machine grid-connected simulation model of the flywheel energy storage system in MATLAB/Simulink based on the mathematical model of a back-to-back dual PWM inverter and permanent magnet synchronous motor. By analyzing the simulation results under complex working conditions, this research found that the system has a low ability of anti-disturbance and severe problems with DC bus voltage fluctuations.This paper proposed an optimized dual-loop feedforward coordinated control strategy for back-to-back inverters by theoretical analysis. This method added a capacitor current control loop to the structure of the inner current control of the traditional grid-side converter. Moreover,it used the estimated value of the load current and the grid voltage as feedforward terms. It verifies the effectiveness of the control strategy through simulation analysis. In addition, this research proves it could realize the integrated control of the converters on both sides. All in all,it improves the self-disturbance immunity and dynamic performance of the whole flywheel energy storage system.
        Key words: back-to-back inverter; flywheel energy storage system; vector control; feedforward control; load disturbance; pulse-width modulation
     
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