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SOC (State of Charge) detection method and system for vanadium redox battery

A technology of an all-vanadium redox flow battery and a detection method, which is applied in the directions of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of high cost, large measurement error, complicated operation, etc., and achieves convenient operation, small error, and accurate detection. Effect

Active Publication Date: 2015-02-11
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method and system for SOC detection of an all-vanadium redox flow battery to solve the problems of complex operation, high cost and large measurement error in the prior art

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  • SOC (State of Charge) detection method and system for vanadium redox battery
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  • SOC (State of Charge) detection method and system for vanadium redox battery

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] figure 1 It is a schematic structural diagram of an SOC detection system of an all-vanadium redox flow battery according to an embodiment of the present invention. As shown in the figure, the SOC detection system of the all-vanadium redox flow battery in this embodiment includes: positive electrode potential detection sensor, negative electrode potential detection sensor, positive electrode differential amplifier, negative electrode differential amplifi...

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Abstract

The invention discloses an SOC (State of Charge) detection method and system for a vanadium redox battery. The method comprises the following steps: measuring the positive potential of positive electrolyte and the negative potential of negative electrolyte of the vanadium redox battery; acquiring the positive potential and the negative potential, filtering and amplifying the positive potential and the negative potential, and converting the filtered and amplified positive potential and negative potential into a positive potential digital signal and a negative potential digital signal respectively; processing the positive potential digital signal and the negative potential digital signal to generate a positive SOC value and a negative SOC value respectively; displaying the positive SOC value and the negative SOC value. The SOC detection method and system for the vanadium redox battery in the embodiment of the invention are reasonable in design, are convenient in operation, are accurate in detection and are small in errors; guidance can be provided for the maintenance and management work of long-time-running vanadium electric pile electrolyte, and safe and stable running of an electric pile is ensured.

Description

technical field [0001] The invention relates to the technical field of state of charge (SOC, state of charge) detection of an all-vanadium redox flow battery, in particular to a SOC detection method and system for detecting the state of charge of an electrolyte of an all-vanadium redox flow battery. Background technique [0002] Fossil energy is depleting day by day, and the development of new and sustainable energy is getting more and more attention. Among them, the use of renewable energy such as wind energy and solar energy is one of the important ways for human beings to obtain energy from nature in the future, and it has also become the focus of the development of countries all over the world. However, due to the instability of wind energy and solar energy, the power generated by these energy sources is unstable and has a greater impact on the power grid. Therefore, it is necessary to find a large-scale energy storage device to balance the power grid to regulate power f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
Inventor 张秀丽吴涛王应高李永立王娜郝承磊马茜
Owner STATE GRID CORP OF CHINA
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