All-vanadium redox flow cell management system
An all-vanadium redox flow battery and management system technology, applied in the field of smart grid applications, can solve problems such as single function
Inactive Publication Date: 2016-11-23
湖南德沃普电气股份有限公司
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Problems solved by technology
Most of the traditional battery management systems only have monitoring functions, including data acquisition and charge and discharge control functions, and some of them include relatively simple SOC estimation, with a single function
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[0012] Real-time monitoring of physical parameters of large-capacity all-vanadium redox flow batteries, battery status evaluation, online diagnosis and early warning are realized through the battery management system of the energy storage power station. BMS collects analog parameters of vanadium battery through external sensors and hardware circuits, processed by AI module, and transmitted to logic processing module for judgment and touch screen data display through communication, and finally transmits BMS parameters to EMS through communication transmission to realize energy management. The data acquisition function mainly collects battery voltage, battery temperature, and battery current, and calculates battery internal resistance based on these parameters, and estimates battery SoC.
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The invention discloses an all-vanadium redox flow cell management system. The all-vanadium redox flow cell management system is characterized by comprising steps of displaying, real-time cell parameters and curves are displayed through a touch screen; calculation, a state of charge SOC, a charging and discharging capacity KAH and charging and discharging energy KWH are calculated; recording, fault files are recorded, displayed and stored; setting, cell protection parameter values are set through the touch screen; detection, an end voltage, charging and discharging currents, an open circuit voltage, a protection current, positive liquid temperature, negative liquid temperature, heap temperature and environment temperature are detected; fault alarm, buzzing is generated according to voltage, current and temperature threshold requirements during cell charging and discharging if the parameters are close to or surpass expected thresholds, so a user is warmed to eliminate fault alarm factors. According to the all-vanadium redox flow cell management system, charging and discharging of a large-capacity all-vanadium redox flow cell are monitored, balance control is carried out, functions of data acquisition, charging and discharging control, multiple optional SOC estimation algorithms, alarm and protection, data display and processing and communication are included, and combined function modules can be selected on the basis of specific applications.
Description
technical field [0001] The invention relates to the application field of smart grids, in particular to an all-vanadium redox flow battery management system. Background technique [0002] Battery energy storage systems are widely used in all aspects of the smart grid from power generation to power consumption. The battery management system is an important part of the battery energy storage system, so it is of great significance to prolong the service life of the battery and reduce the operating cost. The battery management system is mainly focused on electric vehicles, and BMS in energy storage power stations is rarely involved. The operating environment of energy storage power stations and electric vehicles is different, so energy storage power stations have special requirements for batteries, with large capacity and high efficiency. Therefore, the requirements of the energy storage power station for the battery management system are different from those of the electric ve...
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Inventor 魏达李鑫刘平平
Owner 湖南德沃普电气股份有限公司
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