Broadband Equivalent Modeling and Common-Mode Voltage Conduction Analysis of Electrochemical Energy Storage System

Electrochemical energy storage system play an important role in the reform of the national energy system and the construction of the energy Internet. Whether small or large capacity battery storage converters, the characteristics of their power electronics can generate high frequency common mode vol...

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Bibliographic Details
Published in:IEEE access 2023, Vol.11, p.44167-44175
Main Authors: Zhao, Bo, Hu, Juan, Hui, Dong, Qu, Zhanzhan, Liu, Lei, Gao, Chaofei
Format: Article
Language:English
Subjects:
Analytical models
Batteries
Broadband
broadband equivalent circuit
common mode voltage
Electric potential
Electrochemical energy storage system
Energy Internet
Energy storage
Equivalent circuits
Integrated circuit modeling
Interference
Inverters
Parasitic capacitance
Parasitics (electronics)
Power harmonic filters
Voltage
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Summary:Electrochemical energy storage system play an important role in the reform of the national energy system and the construction of the energy Internet. Whether small or large capacity battery storage converters, the characteristics of their power electronics can generate high frequency common mode voltage that can be potentially harmful to battery storage system. This paper systematically investigates the common-mode interference (CMI) of electrochemical energy storage system. The mechanism of common-mode interference is revealed, a broadband equivalent circuit model of common-mode voltage in electrochemical energy storage system is established, the effect of parasitic capacitance of the battery on common-mode voltage is simulated and analyzed, and the broadband equivalent circuit model is verified based on laboratory data.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2023.3270327