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基于遺傳算法的輸變電設(shè)備數(shù)據(jù)補(bǔ)全*
電子技術(shù)應(yīng)用
龍玉江,衛(wèi)薇,舒彧
(貴州電網(wǎng)有限責(zé)任公司信息中心,貴州 貴陽(yáng) 550003)
摘要: 在數(shù)字孿生技術(shù)的發(fā)展下,我國(guó)電網(wǎng)行業(yè)也在由原來(lái)的物理電網(wǎng)逐步向數(shù)字電網(wǎng)發(fā)展。輸變電設(shè)備作為電網(wǎng)中的電能輸送和傳輸?shù)臉屑~設(shè)備,其運(yùn)行的可靠性直接關(guān)系到電網(wǎng)的安全穩(wěn)定運(yùn)行。因此,及時(shí)掌握輸變電設(shè)備當(dāng)前的運(yùn)行狀態(tài)以及未來(lái)一段時(shí)間的運(yùn)行趨勢(shì),實(shí)現(xiàn)對(duì)設(shè)備運(yùn)行狀態(tài)的準(zhǔn)確評(píng)估,對(duì)于保證設(shè)備安全可靠運(yùn)行具有重要意義。然而,在目前的實(shí)際應(yīng)用過(guò)程中,受限于傳感裝置穩(wěn)定性差、現(xiàn)場(chǎng)運(yùn)行環(huán)境惡劣、電磁環(huán)境復(fù)雜等原因,輸變電設(shè)備的狀態(tài)量數(shù)據(jù)會(huì)出現(xiàn)數(shù)據(jù)缺失造成獲得的數(shù)據(jù)質(zhì)量較差,這會(huì)直接影響設(shè)備狀態(tài)評(píng)估模型的準(zhǔn)確性。提出一種基于遺傳算法的輸變電設(shè)備缺失數(shù)據(jù)補(bǔ)全方法,首先對(duì)變換域隨機(jī)賦值,然后通過(guò)實(shí)現(xiàn)稀疏域中系數(shù)向量最小化達(dá)到缺失點(diǎn)恢復(fù)的效果。實(shí)驗(yàn)證明,該算法能夠準(zhǔn)確地恢復(fù)缺失數(shù)據(jù)。
中圖分類號(hào):TM744 文獻(xiàn)標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.233729
中文引用格式: 龍玉江,衛(wèi)薇,舒彧. 基于遺傳算法的輸變電設(shè)備數(shù)據(jù)補(bǔ)全[J]. 電子技術(shù)應(yīng)用,2023,49(9):74-79.
英文引用格式: Long Yujiang,Wei Wei,Shu Yu. Data completion of power transmission and transformation equipment based on genetic algorithm[J]. Application of Electronic Technique,2023,49(9):74-79.
Data completion of power transmission and transformation equipment based on genetic algorithm
Long Yujiang,Wei Wei,Shu Yu
(Guizhou Power Grid Co., Ltd. Information Center,Guiyang 550003,China)
Abstract: With the development of digital twin technology, the power grid industry in China is also gradually developing from the original physical power grid to the digital power grid. Power transmission and transformation equipment, as the pivot equipment of electric energy transmission and transmission in the power grid, the reliability of its operation is directly related to the safe and stable operation of the power grid. Therefore, it is of great significance to grasp the current operating status of the power transmission and transformation equipment and the operating trend of the future period of time, and to achieve an accurate evaluation of the equipment operating status, to ensure the safe and reliable operation of the equipment. However, in the current practical application process, limited by the poor stability of the sensing device, the harsh on-site operating environment, and the complex electromagnetic environment, the state quantity data of the power transmission and transformation equipment will be missing data, resulting in poor data quality. This directly affects the accuracy of the equipment condition assessment model. In this paper, a genetic algorithm-based method for missing data completion of power transmission and transformation equipment is proposed. The method first randomly assigns values to the transform domain, and then achieves the effect of missing point recovery by minimizing the coefficient vector in the sparse domain. Experiments show that the algorithm can recover missing data accurately.
Key words : digital twin;digital power grid;state assessment of power transmission and transformation equipment;data completion;genetic algorithm

0 引言

近些年來(lái),大數(shù)據(jù)、物聯(lián)網(wǎng)以及云計(jì)算等數(shù)字技術(shù)的出現(xiàn),促進(jìn)了第四次工業(yè)革命的更進(jìn)一步發(fā)展,同時(shí)也更好地提高了信息數(shù)據(jù)的收集、儲(chǔ)存以及共享的效率,使生產(chǎn)方式以及經(jīng)濟(jì)形態(tài)發(fā)生了整體上的變化,在這樣的背景下,數(shù)字經(jīng)濟(jì)也成為了我國(guó)實(shí)現(xiàn)高質(zhì)量發(fā)展的最主要?jiǎng)恿χ籟1]。

為滿足和適應(yīng)社會(huì)化、個(gè)性化、服務(wù)化、智能化、綠色化等制造發(fā)展的需求和趨勢(shì),世界各國(guó)相繼提出了各自國(guó)家層面的制造發(fā)展戰(zhàn)略,這些制造發(fā)展戰(zhàn)略的共同目標(biāo)之一就是要實(shí)現(xiàn)制造的物理世界和信息世界的互聯(lián)互通和智能化操作,進(jìn)而實(shí)現(xiàn)智能制造[2]。而運(yùn)用數(shù)字孿生技術(shù)對(duì)輸變電系統(tǒng)建立相應(yīng)的數(shù)字化模型,通過(guò)多維虛擬模型和融合數(shù)據(jù)雙驅(qū)動(dòng),將物理對(duì)象的數(shù)據(jù)和虛擬模型進(jìn)行動(dòng)態(tài)的交互,實(shí)現(xiàn)對(duì)物理對(duì)象的監(jiān)控、仿真、預(yù)測(cè)等實(shí)際功能,并在一定程度上做到物理對(duì)象和虛擬模型的共生。



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作者信息:

龍玉江,衛(wèi)薇,舒彧

(貴州電網(wǎng)有限責(zé)任公司信息中心,貴州 貴陽(yáng) 550003)



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