本文選題：熱電轉(zhuǎn)換　切入點(diǎn)：汽車(chē)尾氣熱電發(fā)電　出處：《中國(guó)機(jī)械工程》2016年19期 　論文類(lèi)型：期刊論文

【摘要】：基于建立的汽車(chē)尾氣熱電發(fā)電實(shí)驗(yàn)系統(tǒng),采用最小二乘法對(duì)熱電輸出功率與電壓的數(shù)據(jù)進(jìn)行了擬合,并針對(duì)已有開(kāi)路電壓比例系數(shù)法、干擾觀測(cè)法等MPPT算法在熱電發(fā)電系統(tǒng)中應(yīng)用存在的不足,提出了基于二分梯度法的新型MPPT算法,并給出詳細(xì)算法實(shí)現(xiàn)步驟。實(shí)驗(yàn)結(jié)果表明,采用二分梯度法的MPPT算法相比傳統(tǒng)算法在跟蹤精度和速度上有較大提升,其最大功率點(diǎn)跟蹤精度達(dá)到98.7%,跟蹤速度為120ms。
[Abstract]:Based on the experimental system of automobile exhaust thermoelectric power generation, the data of output power and voltage are fitted by least square method, and the ratio coefficient method of open circuit voltage is used to solve the problem. In this paper, a new MPPT algorithm based on dichotomous gradient method is proposed, and the implementation steps of the algorithm are given. The experimental results show that, Compared with the traditional MPPT algorithm, the tracking accuracy and speed of the MPPT algorithm with bipartite gradient method are greatly improved. The maximum power point tracking accuracy is 98.7 and the tracking speed is 120ms.
【作者單位】： 武漢理工大學(xué);太陽(yáng)能高效利用湖北省協(xié)同創(chuàng)新中心;湖北工業(yè)大學(xué);
【分類(lèi)號(hào)】：U464.134.4;TM617
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本文編號(hào)：1645349