Carrier Phase Shift Method of SPWM for Concurrent Wired and Wireless Power Transfer Systems

Date

2022-01-01

Author

Ayaz, Enes
Altun, Ogün
Keysan, Ozan

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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This paper presents an approach for concurrent power transfer to wired and wireless systems using just a single inverter. The approach utilizes a novel carrier phase-shift (CPS) method that independently controls the inverter output voltages at the fundamental and switching frequencies. This proposed method can be a cost-effective solution to wireless power transfer (WPT) systems used in contactless slip rings (CSR), which transfer power to auxiliary loads such as sensors, radars, and IoT devices. There are two separate converters in conventional CSR systems: one is for the motor drive, and the other is for the WPT system. It is proposed that the switching harmonics of the motor drive can also be utilized to excite the WPT system while the low-frequency component can still be used to drive the motor. In order to control these independently, the CPS method is introduced. The proposed method is investigated analytically for sinusoidal-PWM (SPWM). Then, an experimental setup consisting of a 3-phase 3-wire GaN-based inverter and a 3-phase motor is built. Experimental results show that the WPT and motor systems are operated concurrently, and their powers are controlled independently by the proposed method.

Subject Keywords

Amplitude modulation, carrier phase shift, concurrent power transfer, dual-band power transfer, Harmonic analysis, inductive power transfer, Inverters, motor drive, Pulse width modulation, Resonant frequency, Switches, Switching frequency, Wireless power transfer

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85140718402&origin=inward
https://hdl.handle.net/11511/101748

Journal

IEEE Transactions on Industrial Electronics

DOI

https://doi.org/10.1109/tie.2022.3213908

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

E. Ayaz, O. Altun, and O. Keysan, “Carrier Phase Shift Method of SPWM for Concurrent Wired and Wireless Power Transfer Systems,” IEEE Transactions on Industrial Electronics, pp. 0–0, 2022, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85140718402&origin=inward.