CN103149537B - The method of battery pile is protected in a kind of vanadium cell test process - Google Patents
The method of battery pile is protected in a kind of vanadium cell test process Download PDFInfo
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Abstract
本发明涉及钒电池领域，具体为一种钒电池测试过程中保护电池堆的方法。由于钒电池管理系统和充放电测试仪之间是独立工作的关系，而现有充放电测试仪的软硬件已固定，软硬件升级存在高成本的问题，该解决方案为在钒电池堆和充放电测试仪之间加一个接触器，该接触器由电池管理系统控制通断。正常充电过程下，该接触器一直处于闭合状态；当钒电池管理系统检测到钒电池侧或电气部分出现故障而停止钒电池侧的循环泵运行，而此时充放电测试仪并没有停止对电池的充电，那么钒电池管理系统可以通过检测对电池的充电电流，只要充电电流在限定时间内持续不等于0，则电池管理系统自动断开钒电池与充放电测试仪之间的电路，起到保护钒电池堆的功能。
The invention relates to the field of vanadium batteries, in particular to a method for protecting battery stacks during testing of vanadium batteries. Due to the independent working relationship between the vanadium battery management system and the charge and discharge tester, and the software and hardware of the existing charge and discharge tester have been fixed, there is a problem of high cost in upgrading the software and hardware. A contactor is added between the discharge testers, and the contactor is turned on and off by the battery management system. During the normal charging process, the contactor is always in the closed state; when the vanadium battery management system detects a failure on the vanadium battery side or the electrical part, it stops the circulation pump on the vanadium battery side, but at this time the charge and discharge tester does not stop testing the battery. charging, then the vanadium battery management system can detect the charging current of the battery, as long as the charging current is not equal to 0 within the limited time, the battery management system will automatically disconnect the circuit between the vanadium battery and the charge and discharge tester, and play a role Protect the function of the vanadium battery stack.
Description
技术领域technical field
本发明涉及钒电池领域，具体为一种钒电池测试过程中保护电池堆的方法，适用于钒电池测试过程中的保护功能解决方案。The invention relates to the field of vanadium batteries, in particular to a method for protecting a battery stack during the testing process of the vanadium battery, which is suitable for a protection function solution during the testing process of the vanadium battery.
背景技术Background technique
现有钒电池充放电测试系统包括钒电池堆、钒电池管理系统和充放电测试仪。钒电池管理系统负责循环泵启停控制和钒电池电解液的流量、温度、压力、液位等的监测和报警，该系统可以通过上位机软件或控制柜触摸屏来监测控制。充放电测试仪负责对电池堆的充放电控制，其参数设置和控制由上位机实现。钒电池管理系统和充放电测试仪电气上互相独立。这样存在的问题就是，当钒电池管理系统监测到钒电池侧或钒电池管理系统控制柜电气部分存在故障时，会停止钒电池侧的循环泵运行；倘若此时充放电测试仪依旧对钒电池充电，便只是对电池堆内的那部分剩余液体充电，会将钒电池堆烧坏，后果比较严重。而充放电测试仪的硬件已固定，如果增加电池管理系统和充放电测试仪之间的硬件连接，软硬件均需修改，成本较高，且需要一定周期。The existing vanadium battery charge and discharge test system includes a vanadium battery stack, a vanadium battery management system and a charge and discharge tester. The vanadium battery management system is responsible for the start-stop control of the circulating pump and the monitoring and alarming of the flow, temperature, pressure, liquid level, etc. of the vanadium battery electrolyte. The system can be monitored and controlled through the host computer software or the touch screen of the control cabinet. The charge and discharge tester is responsible for the charge and discharge control of the battery stack, and its parameter setting and control are realized by the host computer. The vanadium battery management system and the charge and discharge tester are electrically independent of each other. The problem that exists in this way is that when the vanadium battery management system detects that there is a fault on the vanadium battery side or the electrical part of the control cabinet of the vanadium battery management system, it will stop the circulation pump on the vanadium battery side; Charging is just charging the remaining liquid in the battery stack, which will burn out the vanadium battery stack, and the consequences are more serious. However, the hardware of the charge-discharge tester has been fixed. If the hardware connection between the battery management system and the charge-discharge tester is added, both the software and hardware need to be modified, which is costly and requires a certain cycle.
发明内容Contents of the invention
为了弥补现有钒电池管理系统和充放电测试仪对电池充放电控制的一致性，本发明的目的在于提供一种钒电池测试过程中保护电池堆的方法，保证钒电池堆的本身性能不受损坏。In order to make up for the consistency of the existing vanadium battery management system and charge and discharge tester on the control of battery charge and discharge, the purpose of the present invention is to provide a method for protecting the battery stack during the testing process of the vanadium battery, so as to ensure that the performance of the vanadium battery stack itself is not affected. damage.
本发明解决技术问题采用如下技术方案：The present invention solves technical problem and adopts following technical scheme:
一种钒电池测试过程中保护电池堆的方法，包括如下步骤：A method for protecting a battery stack during a vanadium battery test process, comprising the steps of:
（1）在制作工艺上，在原钒电池充放电测试系统中添加一个接触器，该接触器的主触点连接在钒电池堆和充放电测试仪之间，其辅助触点开闭情况由钒电池管理系统检测，其线圈的得失电由钒电池管理系统控制；(1) In the production process, a contactor is added to the original vanadium battery charge and discharge test system. The main contact of the contactor is connected between the vanadium battery stack and the charge and discharge tester. The opening and closing of the auxiliary contact is determined by the vanadium battery. The battery management system detects that the power gain and loss of the coil is controlled by the vanadium battery management system;
（2）在控制方法上，钒电池管理系统负责将循环泵启动运行后，自动将钒电池堆和充放电测试仪之间的接触器闭合；除非循环泵停止而充放电测试仪未停止对电池充电时，由钒电池管理系统自动将接触器断开，其他情况该接触器一直保持闭合状态；(2) In terms of control method, the vanadium battery management system is responsible for automatically closing the contactor between the vanadium battery stack and the charge and discharge tester after the circulation pump is started; unless the circulation pump stops and the charge and discharge tester does not stop the battery When charging, the vanadium battery management system automatically disconnects the contactor, and the contactor remains closed in other cases;
从而，在钒电池充电过程中，电池侧循环泵已停止运行时，防止充放电测试仪依旧对钒电池进行充电。Therefore, during the charging process of the vanadium battery, when the circulation pump on the battery side has stopped running, the charge and discharge tester is prevented from still charging the vanadium battery.
所述的钒电池测试过程中保护电池堆的方法，针对钒电池管理系统检测到钒电池侧或钒电池管理系统控制柜电气部分存在故障而停止钒电池侧的循环泵运行，而由于钒电池管理系统和充放电测试仪互相独立工作，倘若此时充放电测试仪依旧对钒电池充电会损坏钒电池堆，所以在充放电测试仪和钒电池之间加一个接触器，当出现上述情况时，该接触器由电池管理系统控制断开。The method for protecting the battery stack during the vanadium battery test process is aimed at stopping the operation of the circulation pump on the vanadium battery side when the vanadium battery management system detects that there is a fault on the vanadium battery side or the electrical part of the control cabinet of the vanadium battery management system. The system and the charge and discharge tester work independently of each other. If the charge and discharge tester is still charging the vanadium battery at this time, it will damage the vanadium battery stack. Therefore, add a contactor between the charge and discharge tester and the vanadium battery. When the above situation occurs, The contactor is controlled to be disconnected by the battery management system.
所述的钒电池测试过程中保护电池堆的方法，当钒电池管理系统监测到钒电池侧或钒电池管理系统控制柜电气部分存在故障时，会停止钒电池侧的循环泵运行；此时充放电测试仪依旧对钒电池充电，由钒电池管理系统监测充放电测试仪对钒电池堆的充电电流，如果该电流在限定的时间内一直不为0，且循环泵已停止运行的条件下，则由钒电池管理系统控制接触器主触点断开，将充放电测试仪和钒电池堆的电路断开。In the method for protecting the battery stack during the vanadium battery test process, when the vanadium battery management system detects that there is a fault in the vanadium battery side or the electrical part of the control cabinet of the vanadium battery management system, it will stop the circulation pump on the vanadium battery side; The discharge tester still charges the vanadium battery, and the vanadium battery management system monitors the charging current of the charge-discharge tester to the vanadium battery stack. If the current is not 0 within the limited time and the circulation pump has stopped running, The main contact of the contactor is controlled by the vanadium battery management system to disconnect, and the circuit of the charge and discharge tester and the vanadium battery stack is disconnected.
所述的钒电池测试过程中保护电池堆的方法，该接触器一方面起到在所述特殊情况下保护钒电池堆的功能，另一方面保证了正常情况下避免其频繁通断。In the method for protecting the battery stack during the testing process of the vanadium battery, the contactor can protect the vanadium battery stack under the special conditions on the one hand, and on the other hand, can avoid its frequent on-off under normal conditions.
与已有技术相比，本发明有益效果体现在：Compared with the prior art, the beneficial effects of the present invention are reflected in:
1、工艺方法简单、方便。在钒电池充电过程中，在电池侧循环泵已停止运行时，防止充放电测试仪依旧对钒电池进行充电的解决方案是：在硬件上只需在充放电测试仪和钒电池堆之间添加一个可靠的中间衔接装置（接触器）；软件上只需钒电池管理系统在循环泵停止运行而充放电测试仪并未停止对钒电池充电时断开接触器，正常情况下均保证接触器的闭合状态。1. The process method is simple and convenient. During the charging process of the vanadium battery, when the circulation pump on the battery side has stopped, the solution to prevent the charge and discharge tester from still charging the vanadium battery is: on the hardware, only need to add between the charge and discharge tester and the vanadium battery stack A reliable intermediate connection device (contactor); the software only needs the vanadium battery management system to disconnect the contactor when the circulation pump stops running but the charge and discharge tester does not stop charging the vanadium battery, and the contactor is guaranteed under normal circumstances. closed state.
2、本发明一方面起到了特殊情况下保护钒电池堆的功能，另一方面保证了正常情况下避免其频繁通断。2. On the one hand, the present invention has the function of protecting the vanadium battery stack under special circumstances, and on the other hand, it can avoid its frequent on-off under normal conditions.
附图说明Description of drawings
图1为本发明钒电池充放电测试系统的系统图。Fig. 1 is a system diagram of the vanadium battery charging and discharging testing system of the present invention.
具体实施方式Detailed ways
针对钒电池管理系统检测到钒电池侧或钒电池管理系统控制柜电气部分存在故障而停止钒电池侧的循环泵运行，而由于钒电池管理系统和充放电测试仪互相独立工作，倘若此时充放电测试仪依旧对钒电池充电会损坏钒电池堆的问题。所以，在充放电测试仪和钒电池之间加一个接触器，当出现上述情况时，该接触器由电池管理系统控制断开。The vanadium battery management system detects that there is a fault on the vanadium battery side or the electrical part of the vanadium battery management system control cabinet and stops the circulation pump on the vanadium battery side. Since the vanadium battery management system and the charge and discharge tester work independently, if the charge The discharge tester still has the problem that charging the vanadium battery will damage the vanadium battery stack. Therefore, add a contactor between the charge and discharge tester and the vanadium battery. When the above situation occurs, the contactor will be disconnected by the battery management system.
当钒电池管理系统监测到钒电池侧或钒电池管理系统控制柜电气部分存在故障时，会停止钒电池侧的循环泵运行；此时充放电测试仪依旧对钒电池充电，由钒电池管理系统监测充放电测试仪对钒电池堆的充电电流，如果该电流在限定的时间内一直不为0，且循环泵已停止运行的条件下，则由钒电池管理系统控制接触器主触点断开，将充放电测试仪和钒电池堆的电路断开。When the vanadium battery management system detects a failure on the vanadium battery side or the electrical part of the vanadium battery management system control cabinet, it will stop the circulation pump on the vanadium battery side; at this time, the charge and discharge tester is still charging the vanadium battery, and the vanadium battery management system Monitor the charging current of the vanadium battery stack by the charge and discharge tester. If the current is not 0 within a limited time and the circulation pump has stopped running, the vanadium battery management system will control the main contact of the contactor to disconnect , disconnect the charge and discharge tester and the circuit of the vanadium battery stack.
如图1所示，本发明钒电池测试过程中保护电池堆的方法，具体步骤如下：As shown in Figure 1, the method for protecting the battery stack in the vanadium battery testing process of the present invention, the specific steps are as follows:
1、加工工艺。硬件上只需在充放电测试仪和钒电池堆之间添加一个接触器。1. Processing technology. The hardware only needs to add a contactor between the charge and discharge tester and the vanadium battery stack.
2、软件实现方法。软件上只需钒电池管理系统在循环泵停止运行而充放电测试仪并未停止对钒电池充放电时断开接触器，正常情况下均保证接触器的闭合状态。2. Software implementation method. In the software, it is only necessary for the vanadium battery management system to disconnect the contactor when the circulating pump stops running but the charge and discharge tester does not stop charging and discharging the vanadium battery. Under normal circumstances, the contactor is guaranteed to be closed.
结果表明，本发明是在钒电池充电过程中，电池侧循环泵已停止运行时防止充放电测试仪依旧对钒电池进行充电的解决方案。由于钒电池管理系统和充放电测试仪之间是独立工作的关系，而现有充放电测试仪的软硬件已固定，软硬件升级存在高成本的问题，该解决方案为在钒电池堆和充放电测试仪之间加一个接触器，该接触器由电池管理系统控制通断。正常充电过程下，该接触器一直处于闭合状态；当钒电池管理系统检测到钒电池侧或电气部分出现故障而停止钒电池侧的循环泵运行，而此时充放电测试仪并没有停止对电池的充电，那么钒电池管理系统可以通过检测对电池的充电电流，只要充电电流在限定时间内持续不等于0，则电池管理系统自动断开钒电池与充放电测试仪之间的电路。该解决方案保护了钒电池，对于钒电池的充电系统来说是一种必须。The results show that the present invention is a solution to prevent the charge and discharge tester from still charging the vanadium battery when the circulation pump on the battery side has stopped running during the charging process of the vanadium battery. Due to the independent working relationship between the vanadium battery management system and the charge and discharge tester, and the software and hardware of the existing charge and discharge tester have been fixed, there is a problem of high cost in upgrading the software and hardware. A contactor is added between the discharge testers, and the contactor is turned on and off by the battery management system. During the normal charging process, the contactor is always in the closed state; when the vanadium battery management system detects a failure on the vanadium battery side or the electrical part, it stops the circulation pump on the vanadium battery side, but at this time the charge and discharge tester does not stop testing the battery. charging, then the vanadium battery management system can detect the charging current of the battery, as long as the charging current is not equal to 0 within the limited time, the battery management system will automatically disconnect the circuit between the vanadium battery and the charge and discharge tester. This solution protects the vanadium battery and is a must for charging systems for vanadium batteries.
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|---|---|---|---|---|
| US6154012A (en) * | 1999-10-13 | 2000-11-28 | Xicor, Inc. | Gas gauge implementation |
| CN1755385A (en) * | 2004-09-29 | 2006-04-05 | 三美电机株式会社 | Overcharge/overdischarge detection apparatus, overcharge/overdischarge detection circuit, and semiconductor apparatus |
| CN201113411Y (en) * | 2007-09-21 | 2008-09-10 | 深圳市比克电池有限公司 | battery protection device |
| CN102759712A (en) * | 2011-04-29 | 2012-10-31 | 比亚迪股份有限公司 | Battery testing device and testing method thereof |
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