Abstract
This article proposes a fast and accurate real-time estimation method for developing a dynamic battery circuit model on the primary side of a series-series (SS) compensated wireless power transfer (WPT) system. By detecting the current of the transmitter resonator only, the charging voltage, charging current, state-of-charge, the equivalent resistance of the Lithium-ion battery, and the mutual inductance in the WPT system can be accurately estimated in real time. The battery equivalent circuit can be transferred to the primary side. The constant-current and constant-voltage charging of the Li-ion battery can, therefore, be realized with primary-side control. The proposal has been successfully implemented and verified in a hardware setup with a Lithium-ion battery load. It provides a new tool to transfer the battery model to the primary side for future optimal primary-side control of SS-compensated WPT systems. © 1982-2012 IEEE.
| Original language | English |
|---|---|
| Pages (from-to) | 7966-7974 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 71 |
| Issue number | 7 |
| Online published | 19 Sept 2023 |
| DOIs | |
| Publication status | Published - Jul 2024 |
| Externally published | Yes |
Funding
This work was supported in part by the A∗Star MTC Individual Research under Grant M21K2c0108, and in part by the EEE Emerging Research Programme under Grant 03INS001708C140.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Research Keywords
- Primary-side control
- real-time estimation
- state-of-charge (SOC) estimation
- wireless power transfer (WPT)
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