Abstract
This paper compares the methods of undertaking on-line electrochemical impedance spectroscopy that have been published in the literature. This paper describes the different published methodologies and sorts these into categories. This paper looks at the theoretical analysis of the circuits and control techniques and follows up with simulation and/or experimental studies of these methods. This paper focuses on battery systems.
Highlights
A key challenge in a battery energy storage system [1] is understanding the availability and reliability of the system from the perspective of the end customer
The quantity of published literature in reputable journals around Electrochemical Impedance Spectroscopy (EIS) indicates that these measurements are a valuable tool in determining the impedance and the subsequent states of the battery
EIS is a method of data measurement which looks at the electrical and electrochemical characteristics of some material or electrical components such as a battery
Summary
A key challenge in a battery energy storage system [1] is understanding the availability and reliability of the system from the perspective of the end customer. These measurement methods have been in use for over twenty years [25] and are well established. These include the battery balancing circuitry, the protection devices and the power electronic converter.
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