High-voltage protection function module in energy storage battery management system and control method thereof
A management system, energy storage battery technology, applied in the arrangement of multiple synchronous batteries, battery circuit devices, emergency protection circuit devices, etc., can solve the problems of software failure, leakage, uncontrollable system, etc. effect of probability
Inactive Publication Date: 2020-04-10
ALPHA ESS CO LTD
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[0003] Purpose of the invention: The present invention provides a control method conforming to the IEC61508 standard in order to solve the hazards such as fire, explosion, and leakage caused by battery overcharge and high voltage in the prior art, and decomposes the high-voltage monitoring of the battery pack into collection, transmission, processing, and protection. In each link, solve the problem of uncontrollable system due to software failure or hardware failure of the high-voltage fault diagnosis control module, and provide risk reduction measures in the event of a failure
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[0030] Such as figure 1 Said, a high-voltage protection function module in an energy storage battery management system, the energy storage battery is connected to a PSC system to realize charging, and the PSC system can be connected to grid-connected, photovoltaic, diesel engine, wind power and other power supply systems for charging; energy storage There are positive and negative power lines between the battery and the PSC system. The energy storage battery is at least provided with a battery pack and a management system. The management system communicates with the PSC system through the CAN bus. The control module in the management system is controlled by the MCU Module 3 is used for control. The management system is also provided with a high-voltage protection function module. The positive and negative power lines between the energy storage battery and the PSC system are respectively provided with a positive relay 7 and a negative relay 8. The high-voltage protection functio...
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The invention discloses a high-voltage protection function module in an energy storage battery management system. An energy storage battery is connected with a PSC system for charging; positive and negative power lines are arranged between the energy storage battery and the PSC system; the energy storage battery is at least provided with a battery pack and a BMS; the BMS communicates with the PSCthrough a CAN bus; a control function in the BMS is realized by an MCU module; a high-voltage protection function module is arranged in the BMS; relays are respectively arranged on the external positive and negative power lines of the energy storage battery; the high-voltage protection function module collects the voltage of each battery cell in the battery pack and transmits the collected information to the MCU module for processing through an isolation communication module, and the high-voltage protection function module controls the charging power of the energy storage battery and whether apower line between the high-voltage protection function module and the PSC system is on or off; and therefore, the management system can give an early warning in time and intervene in functional safety measures when potential safety hazard symptoms occur in sub-links, the probability of dangerous accidents is effectively reduced, and the overall condition is enabled to run in a safe and controllable safety state.
Description
technical field [0001] The invention relates to an energy storage battery management system, in particular to a high-voltage protection function module and a control method in the energy storage battery management system. Background technique [0002] With the increasing environmental and resource problems around the world, the power system dominated by new energy has attracted much attention, and energy storage technology has a good prospect in realizing the application of new energy. The high proportion of new energy development has driven down the cost of energy storage. Electrochemical energy storage has been rolled out in various links such as generation, transmission, distribution, and use. The cumulative installed capacity of electrochemical energy storage projects that have been invested has steadily increased. According to the CNESA Global Energy Storage Project Database According to incomplete statistics, as of the end of 2018, the cumulative installed capacity of ...
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Login to View More IPC IPC(8): H02H7/18H02J7/00
CPCH02H7/18H02J7/0014
Inventor 马慧娇孙丽艳袁宏亮王珺张新艳林栋
Owner ALPHA ESS CO LTD