Design of a Double-Sided LCLC-Compensated Capacitive Power Transfer System With Predesigned Coupler Plate Voltage Stresses
| Autor: | Xi Chen, Xiaohui Qu, Chunting Chris Mi, Jing Lian |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Materials science
020209 energy 020208 electrical & electronic engineering Energy Engineering and Power Technology High voltage 02 engineering and technology AC power Electromagnetic interference Power (physics) Control theory EMI 0202 electrical engineering electronic engineering information engineering Constant current Electrical and Electronic Engineering Voltage Electronic circuit |
| Zdroj: | IEEE Journal of Emerging and Selected Topics in Power Electronics. 10:128-137 |
| ISSN: | 2168-6785 2168-6777 |
| DOI: | 10.1109/jestpe.2020.3030657 |
| Popis: | A high-performance capacitive power transfer (CPT) system is expected to achieve the load-independent constant output, near-zero reactive power, and soft switching of power switches simultaneously, resulting in a reduced power stage, simple control circuitry, and minimum component ratings. However, a well-compensated CPT system still suffers very high voltage stresses among not only the main coupled plates but also the leakage coupled plates due to the small coupling and edge emission, which increase the risk of air breakdown and deteriorate the electromagnetic interference (EMI) issue. To solve this problem, the voltage stresses among such coupler plates should be predesigned at an acceptable level. This paper systematically analyzes characteristics of a double-sided LCLC compensated CPT converter, which is proved to have enough design freedom providing predesigned voltage stresses for two kinds of coupled plates. Also, three operating frequencies with load-independent constant current (CC) output and input zerophase angle (ZPA) are found. Without reactive power in the circuit, a parameter design method is proposed for the doublesided LCLC compensated CPT converter at each frequency to satisfy the desired CC output and the predesigned voltage limitations. In this way, the breakdown and EMI issues can be well mitigated by the intended design and this method can also be extended to other CPT circuits. Finally, a CPT prototype is built to verify the theoretical analysis with the predesigned voltage stresses among the coupler plates. |
| Databáze: | OpenAIRE |
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