工業(yè)變頻能量回饋技術(shù)進(jìn)展
周侃恒,吳清,夏春明
華東理工大學(xué) 機(jī)械與動(dòng)力工程學(xué)院,上海 200237
摘 要: 介紹了目前工業(yè)變頻電氣傳動(dòng)系統(tǒng)下電機(jī)制動(dòng)過程中常用的工業(yè)變頻能量回饋技術(shù),包括通用變頻器能量回饋PWM 技術(shù)、公共直流母線技術(shù)、超級(jí)電容技術(shù)以及雙脈寬調(diào)制PWM 變頻器能量回饋技術(shù),對(duì)各種技術(shù)的原理、節(jié)能效果、應(yīng)用情況進(jìn)行了說明和比較。結(jié)果表明變頻器能量回饋技術(shù)能有效節(jié)能,在工業(yè)變頻電氣傳動(dòng)系統(tǒng)中應(yīng)用廣泛,是變頻調(diào)速發(fā)展的新趨勢(shì)。
關(guān)鍵詞: 變頻器;能量回饋;交流異步電機(jī)
中圖分類號(hào):TM344.6 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2013)09-0007-06
Energy Feedback Technologies Progress of Industrial Frequency Conversion
ZHOU Kan-heng, WU Qing, XIA Chun-ming
Mechanical and Power Engineering Institute, East China University of Science and Technology, Shanghai 200237, China
Abstract: Introduction was made to industrial frequency conversion energy feedback technologies in common use in the process of motor braking under the system of industrial variable frequency electric drive at present. This paper discussed the principle, energysaving effect and applications of various energy feedback technologies, including universal PWM inverter energy feedback technology,common DC bus technology, super-capacitor technology and dual-PWM inverter energy feedback technology. The esult shows that the inverter energy feedback technology more widely applied in industrial variable frequency electric drive systems is the new development trend of the variable frequency speed control.
Key words: frequency converter; energy feedback; AC asynchronous motor
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