

摘" 要:隨著電力系統(tǒng)的發(fā)展和智能化程度的提高,電力電子變換器的功率因素優(yōu)化已成為提高電力系統(tǒng)能效和穩(wěn)定運行的重要手段。功率因素低會導(dǎo)致電能的浪費和電網(wǎng)的穩(wěn)定性下降,因此需要對功率因素進(jìn)行優(yōu)化。基于功率因素的電力電子變換器可以通過多種方法來實現(xiàn)功率因素的優(yōu)化。然而,目前關(guān)于功率因素優(yōu)化的研究仍在不斷深入,需要更加深入地研究和實踐。該文將重點探討功率因素的定義及計算方法,探討常用的提高功率因素實現(xiàn)電力電子變換器優(yōu)化的方法,并討論功率因素優(yōu)化在未來電力系統(tǒng)中的應(yīng)用前景。
關(guān)鍵詞:功率因素;電力電子;變換器;優(yōu)化策略;應(yīng)用前景
中圖分類號:TM46" " " "文獻(xiàn)標(biāo)志碼:A" " " " " 文章編號:2095-2945(2023)28-0153-04
Abstract: With the development of power system and the improvement of intelligence, the power factor optimization of power electronic converter has become an important means to improve the energy efficiency and stable operation of power system. The low power factor will lead to the waste of electric energy and the decline of power grid stability, so it is necessary to optimize the power factor. Power electronic converters based on power factors can optimize power factors through a variety of methods. However, at present, the research on power factor optimization is still in-depth, which needs more in-depth research and practice. This paper focuses on the definition and calculation methods of power factors, discusses the common methods of improving power factors to realize the optimization of power electronic converter, and discusses the application prospect of power factor optimization in the future power system.
Keywords: power factor; power electronics; converter; optimization strategy; application prospect
電力電子變換器是現(xiàn)代電力系統(tǒng)中不可或缺的組成部分。它們能夠?qū)㈦娏π盘栟D(zhuǎn)換為所需的形式和電壓級別,如將直流電轉(zhuǎn)換為交流電,或?qū)⒌碗妷盒盘栟D(zhuǎn)換為高電壓信號。電力電子變換器在各個領(lǐng)域都得到了廣泛應(yīng)用,如工業(yè)自動化、風(fēng)力發(fā)電、太陽能發(fā)電等。然而,電力電子變換器的使用也會帶來一些問題,如電網(wǎng)污染、電力損耗和振蕩等。因此,為了提高電力電子變換器的效率和性能,研究功率因素優(yōu)化變得至關(guān)重要。功率因素是電力電子變換器的一個重要性能指標(biāo),反映了變換器輸入電流和輸入電壓之間的相位差。功率因素越高,變換器輸入電流的效率就越高,電網(wǎng)損耗也越小。因此,優(yōu)化功率因素可以提高電力電子變換器的效率和性能,降低電網(wǎng)損耗,減少電網(wǎng)污染。……