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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wei Gu Wangqiang Niu Jianxin Chu Jianhua Wang |
| Copyright Year | 2010 |
| Description | Author affiliation: Key Laboratory of Marine Technology and Control Engineering, Ministry of Communications, PRC, Shanghai Maritime University, 200135, China (Wei Gu; Wangqiang Niu; Jianxin Chu; Jianhua Wang) |
| Abstract | Inductively coupled power transfer (ICPT) systems are types of contactless energy transmission systems developed recently, which have been used for the in-line battery charging of autonomous underwater vehicles (AUV), for power supply of oil rigs and submarine mining operations, and for power supply of moving plat track vehicles in a container wharf. In an ICPT system, a primary capacitance is usually used to minimize the VA rating of power supply, and a secondary capacitance is adopted to maximize the power transfer. The changes of the secondary capacitance because of environmental temperature or other factors will alter the resonant frequency of the secondary side, and thus the power transfer capability is varied. In this study, the power transfer capability of ICPT systems is investigated in detail when the secondary capacitance changes. A dynamic compensation mechanism, named the resonant frequency control, is suggested to keep the system operation frequency to follow the secondary resonant frequency when the secondary capacitance varies. The performance of three frequency control methods, that is the resonant frequency control, the traditional variable frequency control, and the fixed frequency control, are compared when the secondary capacitance varies. Theoretical analysis and numerical simulations show that the power transfer capability of ICPT systems is an intricate function of the operational frequency, and thus resonant operations of the secondary side do not always guarantee maximizing the power transfer. A suitable control mechanism, such as the resonant frequency control, the variable frequency control, or the fixed frequency control, should be designed carefully according to the practical engineering requirement when the secondary capacitance varies. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 706668 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424452217 |
| DOI | 10.1109/OCEANSSYD.2010.5603621 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-05-24 |
| Publisher Place | Australia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Capacitance Resonant frequency Frequency control Power supplies Impedance Batteries Load modeling drops of secondary capacitance Inductively coupled power transfer systems resonant frequency control variable frequency control dynamic compensation |
| Content Type | Text |
| Resource Type | Article |
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