FPGA-Based Frequency Tracking Strategy with High-Accuracy for Wireless Power Transmission Systems
Aiming at the problem of the unavoidable phase-tracking error of the wireless power transfer (WPT) system caused by dead time, MOSFET drive and other factors, this paper proposes a frequency-tracking method with high accuracy based on a Field-Programmable Gate Array (FPGA) to track the current and v...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-02-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/13/4/2316 |
| _version_ | 1827758803016220672 |
|---|---|
| author | Xin Zhang Zhiqi Chu Yuehua Geng Xuetong Pan Rongmei Han Ming Xue |
| author_facet | Xin Zhang Zhiqi Chu Yuehua Geng Xuetong Pan Rongmei Han Ming Xue |
| author_sort | Xin Zhang |
| collection | DOAJ |
| description | Aiming at the problem of the unavoidable phase-tracking error of the wireless power transfer (WPT) system caused by dead time, MOSFET drive and other factors, this paper proposes a frequency-tracking method with high accuracy based on a Field-Programmable Gate Array (FPGA) to track the current and voltage phase differences on the transmitting side. Compared with fixed-phase systems, the proposed method accurately controls the phase difference between voltage and current. It detects the phase difference in real time and adjusts the phase compensation angle dynamically to ensure that the system always operates under the optimal zero-voltage switching (ZVS) state, which reduces system loss. Experiments under operating conditions of varying transmission distances and load resistance values are carried out on a prototype. The experimental results show that the proposed method achieves a desired phase difference of 11.5° under the conditions of varying transmission distances and load resistance values, which meets the expectation of a phase difference between 10.5° and 13° to achieve ZVS. Within the range of over-coupling conditions, the output power and transmission efficiency of the WPT system are more significantly improved than those of the fixed-frequency system, which verifies the feasibility of the proposed method. |
| first_indexed | 2024-03-11T09:12:37Z |
| format | Article |
| id | doaj.art-0ef17c4add8642c0a5d04d866ed34a90 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:12:37Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-0ef17c4add8642c0a5d04d866ed34a902023-11-16T18:54:00ZengMDPI AGApplied Sciences2076-34172023-02-01134231610.3390/app13042316FPGA-Based Frequency Tracking Strategy with High-Accuracy for Wireless Power Transmission SystemsXin Zhang0Zhiqi Chu1Yuehua Geng2Xuetong Pan3Rongmei Han4Ming Xue5Tianjin Key Laboratory of Electrical Equipment Intelligent Control, Tiangong University, Tianjin 300384, ChinaTianjin Key Laboratory of Electrical Equipment Intelligent Control, Tiangong University, Tianjin 300384, ChinaState Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300401, ChinaTianjin Key Laboratory of Electrical Equipment Intelligent Control, Tiangong University, Tianjin 300384, ChinaTianjin Key Laboratory of Electrical Equipment Intelligent Control, Tiangong University, Tianjin 300384, ChinaTianjin Key Laboratory of Electrical Equipment Intelligent Control, Tiangong University, Tianjin 300384, ChinaAiming at the problem of the unavoidable phase-tracking error of the wireless power transfer (WPT) system caused by dead time, MOSFET drive and other factors, this paper proposes a frequency-tracking method with high accuracy based on a Field-Programmable Gate Array (FPGA) to track the current and voltage phase differences on the transmitting side. Compared with fixed-phase systems, the proposed method accurately controls the phase difference between voltage and current. It detects the phase difference in real time and adjusts the phase compensation angle dynamically to ensure that the system always operates under the optimal zero-voltage switching (ZVS) state, which reduces system loss. Experiments under operating conditions of varying transmission distances and load resistance values are carried out on a prototype. The experimental results show that the proposed method achieves a desired phase difference of 11.5° under the conditions of varying transmission distances and load resistance values, which meets the expectation of a phase difference between 10.5° and 13° to achieve ZVS. Within the range of over-coupling conditions, the output power and transmission efficiency of the WPT system are more significantly improved than those of the fixed-frequency system, which verifies the feasibility of the proposed method.https://www.mdpi.com/2076-3417/13/4/2316wireless power transferfrequency trackingphase difference controlzero voltage switching |
| spellingShingle | Xin Zhang Zhiqi Chu Yuehua Geng Xuetong Pan Rongmei Han Ming Xue FPGA-Based Frequency Tracking Strategy with High-Accuracy for Wireless Power Transmission Systems Applied Sciences wireless power transfer frequency tracking phase difference control zero voltage switching |
| title | FPGA-Based Frequency Tracking Strategy with High-Accuracy for Wireless Power Transmission Systems |
| title_full | FPGA-Based Frequency Tracking Strategy with High-Accuracy for Wireless Power Transmission Systems |
| title_fullStr | FPGA-Based Frequency Tracking Strategy with High-Accuracy for Wireless Power Transmission Systems |
| title_full_unstemmed | FPGA-Based Frequency Tracking Strategy with High-Accuracy for Wireless Power Transmission Systems |
| title_short | FPGA-Based Frequency Tracking Strategy with High-Accuracy for Wireless Power Transmission Systems |
| title_sort | fpga based frequency tracking strategy with high accuracy for wireless power transmission systems |
| topic | wireless power transfer frequency tracking phase difference control zero voltage switching |
| url | https://www.mdpi.com/2076-3417/13/4/2316 |
| work_keys_str_mv | AT xinzhang fpgabasedfrequencytrackingstrategywithhighaccuracyforwirelesspowertransmissionsystems AT zhiqichu fpgabasedfrequencytrackingstrategywithhighaccuracyforwirelesspowertransmissionsystems AT yuehuageng fpgabasedfrequencytrackingstrategywithhighaccuracyforwirelesspowertransmissionsystems AT xuetongpan fpgabasedfrequencytrackingstrategywithhighaccuracyforwirelesspowertransmissionsystems AT rongmeihan fpgabasedfrequencytrackingstrategywithhighaccuracyforwirelesspowertransmissionsystems AT mingxue fpgabasedfrequencytrackingstrategywithhighaccuracyforwirelesspowertransmissionsystems |