用于电动汽车驱动的软开关逆变器

Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI:10.1109/APEC.1995.469080

Shaotang Chen, T. Lipo

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引用次数: 15

摘要

提出了一种新型软开关逆变器，它在电动汽车驱动等电池供电应用中具有特殊的潜力。该拓扑结构来源于被动箝位准谐振链路(PCQRL)电路。通过在两个谐振电感之间引入磁耦合，可以将辅助开关从两个减少到一个，并且谐振直流链路只需要一个磁芯。分析了这种新型的带耦合电感的PCQRL拓扑结构，揭示了其各种软开关特性。与传统的被动箝位连续谐振直流链路逆变器相比，这种新型软开关逆变器可以将电压应力从2pu以上降低到1.1-1.3 pu，并且还可以提供软开关PWM操作。通过仿真和实验验证了分析的正确性。

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Soft-switched inverter for electric vehicle drives

A new type of soft-switched inverter which has particular potential for battery powered applications such as electric vehicle drives is proposed. The topology is derived from the passively clamped quasi resonant link (PCQRL) circuit. By introducing magnetic coupling between the two resonant inductors, the auxiliary switches can be reduced from two to one and only a single magnetic core is required for the resonant DC link. An analysis of this novel PCQRL topology with coupled inductors is presented to reveal the various soft switching characteristics. In comparison with the conventional passively clamped continuously resonant DC link inverter, this novel soft switched inverter can reduce voltage stresses from more than 2 p.u. to 1.1-1.3 p.u. It can also provide soft-switched PWM operation. Simulation and experiment are performed to backup the analysis.<>

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来源期刊

Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95

CiteScore

3.20

自引率

0.00%

发文量