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Power information acquisition device, method and power detection method of vanadium liquid flow energy storage system

A power information and collection device technology, applied in the field of flow batteries, can solve the problems of judging the ion concentration, the difficulty of visually distinguishing the color of the electrolyte, and the inability to judge the power contained in the vanadium fluid energy storage device in real time, etc., to achieve the expansion of data Space, precise power detection, and the effect of improving accuracy

Active Publication Date: 2019-11-26
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Since individual vanadium fluids show different colors in different valence states, according to the working process of all-vanadium liquid flow energy storage technology, it should be possible to distinguish the positive electrolyte and the negative electrolyte from the color identification, but the electrolyte Not completely pure vanadium ions, which contain acidic liquids such as sulfuric acid, which makes it difficult to visually distinguish the color of the electrolyte in the actual system, which makes it impossible to judge the ion concentration from these electrolytes in real time, and thus cannot judge in real time The electricity contained in the vanadium fluid energy storage device

Method used

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  • Power information acquisition device, method and power detection method of vanadium liquid flow energy storage system
  • Power information acquisition device, method and power detection method of vanadium liquid flow energy storage system
  • Power information acquisition device, method and power detection method of vanadium liquid flow energy storage system

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Embodiment 1

[0071] Figure 5 An embodiment of the power information collection device of the present invention is shown. The power information collection device in this embodiment includes a sub-device, and the inlet and outlet of the power information collection device are respectively connected to the inlet and outlet of the cuvette in the sub-device. When in use, the switch part turns on the light source, and the electrolyte flows into the power information collection device, flows through the cuvette, and then flows out from the outlet of the device. When the electrolyte flows through the cuvette, the light emitted by the light source passes through the electrolyte and the cuvette, and shines on the color sensor on the other side of the cuvette. The color sensor generates color data and transmits it to the communication part. The component generates the voltage and current data supplied to the light source and calculates the output power, and transmits the above data as light source ...

Embodiment 2

[0075] Figure 6 Another embodiment of the power information collection device of the present invention is shown. The power information collection device in this embodiment includes a plurality of sub-devices, which are divided into a plurality of groups A, B, C... connected in series, and each group includes a plurality of sub-devices connected in parallel, such as A1, A2, A3 Wait. The number of neutron devices in each group can be different, and the number of branches of the electrolyte from converging to splitting can be the same or different each time. Different groups of sub-assemblies have different light source intensities and / or different cuvette thicknesses, for example A1 and B1 have the same light source intensity but the cuvette thicknesses are set to different values, or A1 and B1 have different light source intensities , and the thickness of the cuvette is the same value; while the sub-devices in the same group have the same light source intensity and cuvette t...

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Abstract

This application discloses a power information collection device, method and power detection method for an all-vanadium liquid flow energy storage system. The device includes one or more sub-devices, which include a housing and a cuvette located in the housing, a light source, a color sensor, a switch component and a communication component. The electrolyte flows in from an inlet located at one end of the cuvette and from a cuvette located at the cuvette. The outlet at the other end of the cuvette flows out; the light source is located on one side of the cuvette, illuminating the electrolyte in the cuvette; the color sensor is located on the other side of the cuvette, collecting the electrolyte and cuvette after light to generate color data; the switch component controls the turning on and off of the light source; the communication component is connected to the color sensor, collects the generated data and sends it to the control system. This application can monitor the ion concentration in the electrolyte in real time by collecting the color parameters of the liquid under specific illumination, thereby collecting the power information of the system in real time.

Description

technical field [0001] This application relates to the field of liquid flow batteries, in particular, to the collection and detection of power information of an all-vanadium liquid flow energy storage system. Background technique [0002] Vanadium Redox Flow Battery (VRB) is a redox battery with vanadium as the active material in a circulating liquid state. It was proposed by Marria Kacos of the University of New South Wales in Australia in 1985. After more than 30 years of research and development , the vanadium battery technology is approaching maturity, and the high-power vanadium battery energy storage system has been put into practical use, which is currently the most mature flow battery technology. Such as figure 1 As shown, the all-vanadium redox flow battery is mainly composed of an electrode 10, a diaphragm 11, an electrolyte storage tank 12, a pump 13, etc., and 14 is a load or a charging power source. When 14 is a load, it is in a discharge state. Next, the posi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/387G01R31/388G01N21/25
CPCG01N21/25G01R31/36
Inventor 会国涛王迎春
Owner NORTHEASTERN UNIV LIAONING