Voltage acquisition monitoring device and method for all-vanadium redox flow battery

Abstract

The invention provides a voltage acquisition monitoring device and method of an all-vanadium redox flow battery, the voltage acquisition monitoring device comprises a microcontroller, multipath analogswitches and an upper computer, the input ends of the multipath analog switches are connected with single batteries in the all-vanadium redox flow battery in a one-to-one correspondence manner, and the output ends of the multipath analog switches are connected with the microcontroller; the multipath analog switches comprise a first multipath analog switch and a second multipath analog switch, themicrocontroller controls the first multipath analog switch and the second multipath analog switch so as to enable the first multi-channel analog switch and the second multipath analog switch which are correspondingly arranged to form a circuit channel with a battery to be tested, and the battery voltage of the battery to be tested is collected through the microcontroller; the upper computer is connected with the microcontroller, and the battery voltage is monitored through the upper computer; and the voltage acquisition monitoring method is simple and reliable in measurement circuit and highin measurement value precision.

Description

technical field [0001] The invention belongs to the field of electrochemical energy storage, and relates to a voltage collection and monitoring device and method for an all-vanadium redox flow battery. Background technique [0002] All-vanadium redox flow battery is a new type of electrochemical energy storage system, which has the advantages of large power, large capacity, high energy conversion efficiency, long service life, high safety, green environmental protection, 100% deep discharge and easy monitoring of charging and discharging status And other significant advantages, it has become one of the first choices for large-scale renewable energy storage. It has broad application prospects in large-scale energy storage systems supporting photovoltaic power generation and wind power generation, smart grid peak regulation, communication base stations, and distributed power sources. [0003] At present, in order to increase the power of all-vanadium redox flow batteries, all...

AI Technical Summary

Problems solved by technology

However, since multiple single cells are connected in series, when the voltage of a single or multiple single cells is abnormal, it will cause abnormalities in the all-vanadium redox flow battery and affect the performance of the all-vanadium redox flow battery.

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