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A Low-Cost Voltage Equalizer Based on Wireless Power Transfer and a Voltage Multiplier
- Source :
- IEEE Transactions on Industrial Electronics. 65:5487-5496
- Publication Year :
- 2018
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2018.
-
Abstract
- This paper develops a novel voltage equalizer by combining wireless power transfer (WPT) and a voltage multiplier (VM) for series-connected energy storage cells. The physical isolation achieved by WPT can offer several unique benefits that traditional equalizers can hardly provide. In this paper, the characteristics of a multiple-output VM are analytically discussed and used to develop an equivalent one-output VM model. Based on this model, parameters of the WPT system are properly designed. The proposed design methodology can achieve a single-switch voltage equalizer without feedback control, which dramatically decreases the circuit complexity and cost. Moreover, this methodology can naturally ensure a robust system under small coil misalignment. In the experiment, the proposed system is built to balance four series-connected ultracapacitor modules. The system efficiency is 72.8% at a load power level of 10 W.
- Subjects :
- Supercapacitor
Voltage doubler
Computer science
020208 electrical & electronic engineering
Voltage divider
020302 automobile design & engineering
02 engineering and technology
Voltage regulator
Voltage optimisation
Energy storage
0203 mechanical engineering
Control and Systems Engineering
Dropout voltage
Electromagnetic coil
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
Voltage multiplier
CPU core voltage
Voltage droop
Voltage regulation
Wireless power transfer
Electrical and Electronic Engineering
Voltage
Subjects
Details
- ISSN :
- 15579948 and 02780046
- Volume :
- 65
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Industrial Electronics
- Accession number :
- edsair.doi...........dbb121b8410bbce33ee2dd6b6ae13338