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

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    基于模擬退火算法的模型預(yù)測控制策略

    來源:電工電氣發(fā)布時(shí)間:2023-10-17 16:17 瀏覽次數(shù):254

    基于模擬退火算法的模型預(yù)測控制策略

    譚學(xué)武1,鄧木生2,彭思程1,程諄2
    (1 湖南工業(yè)大學(xué) 電氣與信息工程學(xué)院,湖南 株洲 412007;
    2 湖南鐵道職業(yè)技術(shù)學(xué)院 智能制造學(xué)院,湖南 株洲 412001)
     
        摘 要:傳統(tǒng)的模型預(yù)測控制 (MPC) 存在權(quán)重因子無法準(zhǔn)確設(shè)計(jì)、開關(guān)狀態(tài)循環(huán)預(yù)測以及響應(yīng)速度慢的問題。提出了一種基于模擬退火 (SA) 算法的模型預(yù)測控制策略 (SA-MPC),通過建立預(yù)測模型和構(gòu)造目標(biāo)函數(shù),采用 SA 后臺直接全局尋優(yōu),實(shí)現(xiàn)環(huán)流控制和 SM 電容電壓均壓控制。所提策略無需整定權(quán)重因子,無需循環(huán)試湊開關(guān)狀態(tài),提升了響應(yīng)速度和精度,有效抑制了相間環(huán)流和降低了子模塊電壓波動幅度。通過搭建模塊化多電平換流器 (MMC) 系統(tǒng)模型,仿真驗(yàn)證了所提策略的可行性與有效性。
        關(guān)鍵詞: 模塊化多電平換流器;模擬退火算法;模型預(yù)測控制;環(huán)流抑制;SM 電容均壓
        中圖分類號:TM743     文獻(xiàn)標(biāo)識碼:A     文章編號:1007-3175(2023)09-0014-06
     
    Model Predictive Control Strategy Based on the
    Simulated Annealing Algorithm
     
    TAN Xue-wu1, DENG Mu-sheng2, PENG Si-cheng1, CHENG Zhun2
    (1 College of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China;
    2 School of Intelligent Manufacturing of Rail Transit Equipment, Hunan Railway Professional Technology College, Zhuzhou 412001,China)
     
        Abstract: The traditional Model Predictive Control (MPC) has problems of inaccurately designed weight factors, circularly predicted switching states and slow response speed, so the paper proposes a Model Predictive Control strategy based on the Simulated Annealing Algorithm (SA-MPC). It first establishes a predictive model and constructs an objective function, and then adopts SA in the background to directly achieve global optimization, realizing circulating current control and SM capacitor voltage equalization control. This proposed strategy has no need to set weight factors and cyclically try to find the switching state, so it increases the response speed and accuracy, effectively suppressing the interphase circulating current and reducing the sub-module voltage fluctuation amplitude. Finally, the Modular Multilevel Converter (MMC) system simulation model is built to verify the feasibility and effectiveness of the proposed strategy.
        Key words: modular multilevel converter; simulated annealing algorithm; model predictive control; circulating current suppression; SM capacitor voltage equalization
     
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