A Maximum Efficiency Point Tracking Control Scheme Based on Different Cross Coupling of Dual-Receiver Inductive Power Transfer System

Ruikun Mai, Linsen Ma, Yeran Liu, Pengfei Yue, Guangzhong Cao and Zhengyou He
Additional contact information
Ruikun Mai: State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China
Linsen Ma: State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China
Yeran Liu: State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China
Pengfei Yue: State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China
Guangzhong Cao: Shenzhen Key Laboratory of Electromagnetic Control, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
Zhengyou He: State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China

Energies, 2017, vol. 10, issue 2, 1-17

Abstract: One of the most promising inductive power transfer applications is the wireless power supply for locomotives which may cancel the need for pantographs. In order to meet the dynamic and high power demands of wireless power supplies for locomotives, a relatively long transmitter track and multiple receivers are usually adopted. However, during the dynamic charging, the mutual inductances between the transmitter and receivers vary and the load of the locomotives also changes randomly, which dramatically affects the system efficiency. A maximum efficiency point tracking control scheme is proposed to improve the system efficiency against the variation of the load and the mutual inductances between the transmitter and receivers while considering the cross coupling between receivers. Firstly, a detailed theoretical analysis on dual receivers is carried out. Then a control scheme with three control loops is proposed to regulate the receiver currents to be the same, to regulate the output voltage and to search for the maximum efficiency point. Finally, a 2 kW prototype is established to validate the performance of the proposed method. The overall system efficiency (DC-DC efficiency) reaches 90.6% at rated power and is improved by 5.8% with the proposed method under light load compared with the traditional constant output voltage control method.

Keywords: inductive power transfer; system efficiency improvement; maximum efficiency point tracking (MEPT); multiple-receiver (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/10/2/217/pdf (application/pdf)
https://www.mdpi.com/1996-1073/10/2/217/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:10:y:2017:i:2:p:217-:d:90208

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().