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High Resolution Converter for Battery Impedance Spectroscopy

Dam, Shimul Kumar and John, Vinod High Resolution Converter for Battery Impedance Spectroscopy. In: 2016 IEEE INTERNATIONAL CONFERENCE ON POWER ELECTRONICS, DRIVES AND ENERGY SYSTEMS (PEDES) , DEC 14-17, 2016, Trivandrum, INDIA.

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Official URL: http://doi.org/10.1109/PEDES.2016.7914335

Abstract

Monitoring the condition of battery is beneficial for many applications. Internal impedance of the battery can be used to monitor battery health. The power converter for interfacing the battery bank, can be used to measure battery impedance instead of using any dedicated commercial equipment, thus reducing system cost significantly. However, the power converter has some additional requirements in terms of control and power circuit, to be able to measure battery impedance. This work analyzes the power circuit requirements and describes possible methods to meet them. These additional measures are necessary when power level is medium or high. Advantages and disadvantages of each method are discussed. Among the suggested methods, the in-built PLL of FPGA is used to enhance PWM resolution along with an interleaved converter circuit approach is used to successfully measure battery impedance with a 3 kW converter.

Item Type: Conference Proceedings
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Additional Information: Copy right for this article belongs to the IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), Trivandrum, INDIA, DEC 14-17, 2016
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 23 Sep 2017 04:59
Last Modified: 23 Sep 2017 04:59
URI: http://eprints.iisc.ernet.in/id/eprint/57887

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