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

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    計(jì)及電價(jià)優(yōu)化的電動(dòng)汽車(chē)與風(fēng)電協(xié)同優(yōu)化策略

    來(lái)源:電工電氣發(fā)布時(shí)間:2023-07-01 10:01 瀏覽次數(shù):345

    計(jì)及電價(jià)優(yōu)化的電動(dòng)汽車(chē)與風(fēng)電協(xié)同優(yōu)化策略

    潘韋如1,魏哲2,孫琪3,黃文龍3,王曉東3
    (1 魯東大學(xué) 蔚山船舶與海洋學(xué)院,山東 煙臺(tái) 264025;
    2 國(guó)網(wǎng)山東省電力公司超高壓公司,山東 濟(jì)南 250118;
    3 國(guó)網(wǎng)山東省電力公司淄博供電分公司,山東 淄博 255000)
     
        摘 要:針對(duì)風(fēng)電出力間歇性和大量電動(dòng)汽車(chē)隨機(jī)接入配電網(wǎng)的充放電行為會(huì)造成配電網(wǎng)功率波動(dòng)等問(wèn)題,提出了基于動(dòng)態(tài)分時(shí)電價(jià)的電動(dòng)汽車(chē)與風(fēng)電協(xié)同優(yōu)化調(diào)度策略。建立了動(dòng)力電池?fù)p耗和風(fēng)電出力模型,完善了用戶(hù)和電網(wǎng)兩側(cè)的需求;考慮電網(wǎng)穩(wěn)定性以及不同時(shí)段內(nèi)電動(dòng)汽車(chē)用戶(hù)進(jìn)行充放電的成本與收益,構(gòu)建了以用戶(hù)充電成本、配電網(wǎng)綜合負(fù)荷波動(dòng)以及網(wǎng)損成本最小為目標(biāo)的數(shù)學(xué)模型。為解決多變量、多目標(biāo)約束的優(yōu)化問(wèn)題,采取最大模糊滿(mǎn)意度法將多目標(biāo)問(wèn)題進(jìn)行歸一化處理;利用改進(jìn)的正余弦優(yōu)化算法,將充、放電功率和充、放電電價(jià)等作為變量進(jìn)行尋優(yōu)。IEEE 33 節(jié)點(diǎn)算例多場(chǎng)景仿真結(jié)果表明,所提策略可以隨電動(dòng)汽車(chē)入網(wǎng)信息的變化動(dòng)態(tài)調(diào)整電價(jià),增強(qiáng)風(fēng)電消納能力,同時(shí)在減小峰谷差、減少充電成本和降低網(wǎng)損等方面效果明顯。
        關(guān)鍵詞: 電動(dòng)汽車(chē);風(fēng)電協(xié)同優(yōu)化調(diào)度;動(dòng)態(tài)電價(jià);正余弦優(yōu)化算法
        中圖分類(lèi)號(hào):TM715 ;U469.72     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1007-3175(2023)06-0014-08
     
    Collaborative Optimal Strategy of Electric Vehicles and Wind Power with the
    Consideration of Electricity Price Optimization
     
    PAN Wei-ru1, WEI Zhe2, SUN Qi3, HUANG Wen-long3, WANG Xiao-dong3
    (1 Ulsan Ship and Ocean College, Ludong University, Yantai 264025, China;
    2 State Grid Shandong Electric Extrahigh Voltage Company, Jinan 250118, China;
    3 State Grid Shandong Electric Power Company Zibo Power Supply Branch Company, Zibo 255000, China)
     
        Abstract: In order to solve the problems of intermittent wind power output and distribution network power fluctuation caused by a large number of electric vehicles randomly accessing to the distribution network to charge and discharge, the paper proposes a collaborative optimal scheduling strategy of electric vehicles and wind power based on dynamic time-of-use price. First, models of power battery loss and wind power output are established to improve the needs of both users and power grids. Second, with the consideration of power grid stability and costs and benefits of electric vehicle users’ charging and discharging in different periods, a mathematical model is built to realize the goal of minimizing the user charging costs,the comprehensive load fluctuation of the distribution network and the network loss costs. Third, to optimize the multivariable and multi-objective constraints, the maximum fuzzy satisfaction method is adopted to normalize the multi-objective problem; then, the improved sine cosine optimization algorithm is adopted to optimize the charging and discharging power and price which are used as variables. According to the multi-scenario simulation results of IEEE 33 node example, this strategy is able to dynamically adjust the electricity price with the change of electric vehicle network access, enhance the wind power consumption, and have better effects on reducing peak valley difference, charging cost and network loss.
        Key words: electric vehicles; wind power collaborative optimal scheduling; dynamic price; sine cosine optimization algorithm
     
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