童乐天, 彭晗, 岳乔治, 辛晴, 童乔凌. 一种利用IGBT器件寄生电感能量的暂态调节方法[J]. 中国电机工程学报, 2025, 45(8): 3160-3171. DOI: 10.13334/j.0258-8013.pcsee.240251
引用本文: 童乐天, 彭晗, 岳乔治, 辛晴, 童乔凌. 一种利用IGBT器件寄生电感能量的暂态调节方法[J]. 中国电机工程学报, 2025, 45(8): 3160-3171. DOI: 10.13334/j.0258-8013.pcsee.240251
TONG Letian, PENG Han, YUE Qiaozhi, XIN Qing, TONG Qiaoling. Switching Transient Regulation Using Energy of Parasitic Inductance of IGBT[J]. Proceedings of the CSEE, 2025, 45(8): 3160-3171. DOI: 10.13334/j.0258-8013.pcsee.240251
Citation: TONG Letian, PENG Han, YUE Qiaozhi, XIN Qing, TONG Qiaoling. Switching Transient Regulation Using Energy of Parasitic Inductance of IGBT[J]. Proceedings of the CSEE, 2025, 45(8): 3160-3171. DOI: 10.13334/j.0258-8013.pcsee.240251

一种利用IGBT器件寄生电感能量的暂态调节方法

Switching Transient Regulation Using Energy of Parasitic Inductance of IGBT

  • 摘要: 功率器件由于受芯片封装及电路设计的影响,存在许多寄生电感。寄生电感可能会引起门极信号振荡或者功率器件电气应力增加等问题,因此降低寄生电感是实际应用中的重要设计指标,但寄生电感不能完全被消除。因而利用功率器件中寄生电感,实现开关暂态的调控,是一种更加有效和实际的方法。文中采用分布式参数耦合提取方法,构建一个较全面的器件内部与封装的寄生电感模型,通过瞬时能量积分方法分析寄生电感上能量的交互。进一步地,提出通过能量转移支路,实现寄生电感上能量转移,并配合dvce/dt所产生位移电流的分流,实现功率器件的电压电流变化率的分别调控。所提出的技术可实现开关损耗和电气应力同时优化,无需采用高成本器件。使用该驱动于IGBT器件IKW75N60T,在400 V/60 A的双脉冲测试下,可实现电流过冲和电压过冲分别减小12.0%和14.5%,开通损耗和关断损耗分别降低4.16%和7.6%。

     

    Abstract: Due to the inherent parasitic inductances in power devices caused by chip packaging and circuit design, issues such as gate signal oscillations and increased electrical stresses frequently occur. While complete elimination of parasitic inductance remains impractical, effective utilization of the energy stored in these inductances offers a more viable approach to controlling power device switching transients. This paper presents a comprehensive parasitic inductance model for power devices and packaging using a distributed parameter coupling extraction method. The energy interactions within parasitic inductors are analyzed through an instantaneous energy integration approach. Novel energy transfer branches are proposed to facilitate both energy transfer across parasitic inductors and the shunting of displacement currents induced by dvce/dt enabling independent control of voltage and current slopes. This technique achieves simultaneous optimization of switching losses and electrical stresses without requiring high-cost components. Experimental validation is conducted using IGBT device IKW75N60T in a double-pulse test setup, demonstrating significant performance improvements: 12.0% reduction in current overshoot, 14.5% reduction in voltage overshoot, along with 4.16% and 7.6% reductions in turn-on and turn-off losses respectively. The proposed method provides an effective solution for managing switching transients while maintaining cost efficiency in power electronic systems.

     

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