Dynamic voltage-sharing among series-connected IGBTs during turning-on process
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所属单位：自动化学院
发表刊物：Electron. Lett.
摘要：An active clamping circuit for voltage sharing among series-connected insulated gate bipolar translators (IGBTs) during turning-on process is proposed at first, which detects the C-E voltage of the leading IGBT and generates gate pumping current to slow down the turning-on speed, and thus reduces the voltage difference between the IGBTs. Then, a turn-on edge regulation algorithm for the driving signal is proposed, which further reduces the voltage spike and turn-on power loss, and optimises the regulation speed. A time detection circuit is introduced to detect the pulse signal indicating the working time of the active clamping circuit for driving signal regulation. The turn-on edge regulation for each IGBT is determined by the feature that the rising edge of the detected pulse signal coincides with the corresponding IGBT turn-on edge delay. The experimental results prove the feasibility and effectiveness of the proposed method. © 2019 The Institution of Engineering and Technology.
ISSN号：0013-5194
是否译文：否
发表时间：2019-06-13
合写作者：Zhu, Jianxin,Ding, Shun,胡海兵
通讯作者：邢岩