Analysis of a new soft switching PWM inverter
Analysis of a new soft switching PWM inverter
- Author(s): Ding Luo and Yan Yanguang
- DOI: 10.1049/cp:19960967
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- Author(s): Ding Luo and Yan Yanguang Source: 6th International Conference on Power Electronics and Variable Speed Drives, 1996 p. 513 – 518
- Conference: 6th International Conference on Power Electronics and Variable Speed Drives
- DOI: 10.1049/cp:19960967
- ISBN: 0 85296 665 2
- Location: Nottingham, UK
- Conference date: 23-25 Sept. 1996
- Format: PDF
The resonant DC link inverter is a zero voltage switching inverter. This paper proposes a new cascade resonant DC link inverter that consists of two power converter units, a rugged resonant DC link and an inverter bridge. A detailed analysis of the soft switching process in the rugged resonant DC link and the realization of pulse width modulation (PWM) control strategy in the inverter bridge are presented. The operation modes, the input and output features and the interface between the two power converter units are also discussed. The relation between characteristics and parameters of the circuit is deduced, which provides a theoretical basis for the circuit design. The analysis results show that the rugged resonant DC link can be open-loop controlled and that control of the rugged resonant DC link is independent of that of the inverter bridge, which makes inverter control easy and realizable. The inverter circuit is simulated with the electronics simulation software PSPICE. The simulation results of the circuit verify circuit analyses.
Inspec keywords: resonant power convertors; DC-AC power convertors; switching circuits; SPICE; PWM invertors; power engineering computing; bridge circuits; circuit analysis computing; software packages
Subjects: Power engineering computing; Computer-aided circuit analysis and design; Power convertors and power supplies to apparatus; Power electronics, supply and supervisory circuits; Electronic engineering computing
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