Energy storage control system and method based on retired power battery pack
A power battery pack and energy storage control technology, applied in the direction of electrical components, circuit devices, emergency power supply arrangement, etc., can solve the problems of wasting resources, costing more, destroying the superior performance of the battery pack, etc., and achieving a simple structure and low cost Effect
Pending Publication Date: 2019-12-03
安徽嘉奇能源科技有限公司
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Problems solved by technology
[0006] The battery component assembly used in electric vehicles is in the form of a battery pack. The battery pack is composed of several battery modules and the corresponding battery management system (BMS), control appliances and control circuits. The disassembly of the battery pack It is the decomposition process of these components that requires a certain amount of manpower and material resources, which will inevitably increase the cost of cascade utilization;
[0007] (2) Destroying the superior performance of the original battery pack
To regain these properties will inevitably cost more
[0010] (3) Other resources are wasted
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[0032] The specific implementation manner of the present invention will be described in further detail below by describing the best embodiment with reference to the accompanying drawings.
[0033] In addition to the battery module, there are corresponding control components in the original battery pack, mainly including the battery management system (BMS) and electrical components (fast charge relay, slow charge relay, pre-charge relay, total negative relay, total positive relay, sensors, pre-charge Charging resistance, etc.), the action of these electrical components requires conditions, and even interlocks with each other. Only when the conditions are met can the action form a current loop. The data of all battery modules can be read out from the original battery pack and these relays can be effectively controlled. This makes it possible to realize the patent of the present invention. The purpose of the present invention is to use a control technology without dismantling th...
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The invention discloses an energy storage control system and method based on a retired power battery pack. The system comprises the retired battery pack PACK, a bidirectional converter PCS, a bridge device BC and a human-computer interaction module HMI, wherein a BMS communication interface of the battery pack is connected with a communication interface of the bridge device, a charging and discharging interface of the battery pack is connected with a DC interface of the bidirectional converter PCS, an AC interface of the bidirectional converter PCS is connected with an AC bus AC-BUS, and the bridge device is connected with the bidirectional converter PCS and a human-computer interaction interface. The system is advantaged in that energy storage control is realized based on the non-disassembled battery pack, the BMS in the battery pack is utilized to monitor a state of the battery pack, the bidirectional AC / DC is utilized to realize charging and discharging with an external AC bus so asto realize energy storage control, the whole system is simple in structure and low in cost, the charging and discharging electric energy can be counted through an arranged AC / DC electric energy meter, and energy storage efficiency of the battery can be known; and thearranged AC circuit breaker and knife fuse switch can play a role in maintenance isolation and overcurrent protection.
Description
technical field [0001] The invention relates to the field of recycling of decommissioned battery packs, in particular to an energy storage control system and method based on decommissioned power battery packs. Background technique [0002] After being used for a certain period of time or cycled for a certain number of times, the power battery for new energy electric vehicles will have obvious decline in capacity or power characteristics, which cannot meet the requirements of the vehicle and needs to be retired from the vehicle. However, the decommissioned power battery still has a huge residual value, and its capacity and power can still meet the needs of other energy storage occasions that do not require high power, such as UPS, communication base stations, data centers, electric bicycles, and wind power generation energy storage and other applications. Reusing the decommissioned batteries on electric vehicles to other occasions, this kind of power battery reuse is called ...
Claims
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IPC IPC(8): H02J3/32H02J9/06
CPCH02J3/32H02J9/061
Inventor 林武史新民秦小州高峰蒋丽丽
Owner 安徽嘉奇能源科技有限公司