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- Title
Suppression Strategy of Starting Current Impulse in the Front Stage Rectifier of Electric Vehicle WPT System.
- Authors
Li, Guangye; Lv, Shouming; Yang, Renming
- Abstract
The three-phase voltage type Pulse Width Modulation (PWM) rectifier is widely used in the front-end power factor of electric vehicle wireless charging systems due to its simple control structure and easy implementation. The system often adopts a double closed-loop PI control method based on voltage and current, which inevitably leads to a significant starting current surge and poses significant risks to the safe operation of the equipment. On the basis of establishing a mathematical model for PWM rectifiers, this article analyzes in detail the causes of starting over-current and designs a starting strategy with a voltage outer proportional and integral separated active current directly given. Simulation experiments show that this method can reduce the starting over-current of PWM rectifiers and the excessive DC voltage surge towards normal operation during the starting process.
- Subjects
ELECTRIC current rectifiers; ELECTRIC power factor; PULSE width modulation; WIRELESS power transmission; ELECTRIC vehicles
- Publication
World Electric Vehicle Journal, 2024, Vol 15, Issue 4, p124
- ISSN
2032-6653
- Publication type
Article
- DOI
10.3390/wevj15040124