Method, device and equipment for controlling service life extension of UPS (uninterrupted power supply) storage battery and method for medium

Abstract

The invention relates to a UPS storage battery life prolonging control method, device and equipment and a medium. The method comprises the following steps: a management strategy based on storage battery polarization caused by long-term floating charging of a storage battery and based on intermittent charging, greatly reducing the polarization time of the storage battery; a storage battery monomer charging device based on the performance of the storage battery monomer; the invention discloses a storage battery intelligent capacity checking charge and discharge management device based on real performance of a storage battery. The method is based on a storage battery repairing catalyst, storage battery repairing equipment and the like after performance degradation of the storage battery. In a UPS system, by adopting the storage battery life extension control method, device, equipment and medium provided by the invention, the storage battery life extension control method, device, equipment and medium can be intuitively proved through the performance data of the UPS storage battery. Compared with the charging and discharging capacities of the storage battery pack by adopting the method and the UPS without adopting the method, and the data of each monomer in the storage battery pack are compared, so that the problems of prolonging the service life of the UPS storage battery and intelligently operating and maintaining the UPS storage battery can be solved, and positive economic benefits and social values are brought.

Description

Technical Field

[0001] The present invention relates to the technical field of UPS battery life extension in a computer room, and in particular to a UPS battery life extension control method, device, equipment and medium method. Background Art

[0002] With the rapid development of social economy and the advancement of science and technology, information network technology, digital technology, multimedia technology and artificial intelligence are all heavily dependent on the network and data.

[0003] Network operation relies on uninterrupted power supply, and data storage also requires power supply. UPS is currently the most commonly used means of power supply guarantee in computer rooms.

[0004] Whether UPS can output power uninterruptedly depends on the performance of UPS batteries. At present, UPS batteries normally use lead-acid batteries as backup power sources. The life of UPS batteries is seriously affected by the use of traditional technology. In computer rooms with high safety requirements, many UPS batteries are replaced regularly, and even lead-acid batteries are replaced every two years.

[0005] Replacing the lead-acid battery of UPS requires a lot of manpower and physical effort; in addition, the scrapping of lead-acid batteries also increases the environmental pressure on society.

[0006] A UPS battery life extension control method, device, equipment and medium method are proposed under this situation. Summary of the invention

[0007] In order to improve the reliability of UPS uninterruptible power supply, extend the life of UPS batteries, and reduce the cost and environmental factors caused by the scrapping of UPS batteries, the present invention proposes a UPS battery life extension control method, device, equipment and medium. The technical solution of the present invention is implemented as follows:

[0008] A UPS battery life extension control method, device, equipment and medium method, comprising the steps of:

[0009] S1, UPS batteries use intermittent charging instead of traditional long-term floating charging, which greatly shortens the battery life caused by battery polarization due to online floating charging.

[0010] S2 adopts UPS battery single-cell charging technology, which allows each battery cell to be independently charged, thus maximizing the charging and discharging capacity of the battery pack. Battery single-cell charging allows the battery cells to be fully charged for a long time, suppressing the formation rate of lead sulfate crystals.

[0011] S3, the deteriorated UPS battery is repaired by adding a repair liquid that catalyzes the crystallization and decomposition of lead sulfate to restore and improve the charge and discharge capacity of the UPS battery pack.

[0012] S4, adding an online core capacity charging and discharging device for UPS batteries can realize online core capacity charging and discharging of UPS battery packs. Periodic core capacity charging and discharging can suppress the crystallization rate of non-steady-state lead sulfate in the battery to form steady-state lead sulfate.

[0013] Furthermore, UPS batteries use intermittent charging to replace the traditional long-term floating charging method, first solving the battery polarization problem caused by long-term floating charging of batteries. In the field of traditional technology, UPS batteries apply a fixed battery floating charging voltage to the battery pack under normal conditions. When the UPS battery is first put into operation, this voltage can be evenly distributed to each cell in the battery pack. As time goes by and the electrochemical characteristics of the lead-acid battery itself, different voltages will gradually form on the battery cells. The voltages of different battery cells will gradually increase, forming individual or part of the battery cells. The voltage is too high, and naturally there are individual or part of the battery cells. The voltage is too low. The battery cell voltage is too high or too low, which is the direct cause of battery cell damage; intermittent charging subverts the traditional long-term floating charging mode of lead-acid batteries, allowing UPS batteries to be in a static state most of the time, greatly reducing the polarization factors of long-term floating charging of batteries. Intermittent charging ensures that the battery pack is in a fully charged static state, inhibiting the speed of lead sulfate crystallization.

[0014] Furthermore, the use of UPS battery cell recharging technology is also a key technical means to ensure the life extension of UPS batteries; the UPS battery pack adopts battery cell series connection to obtain the voltage level required by the UPS backup power supply. The electrochemical characteristics of each battery cell change over time, and will present different physical and chemical characteristics. These characteristics will cause the voltage of each battery cell in the battery pack to be discrete. Relying on the traditional series charging method, it cannot be guaranteed that each battery cell can be fully charged. Based on the working characteristics of the UPS battery, it is in a backup power state for a long time. The energy of the battery cell can be improved by recharging a tiny battery cell. The present invention adopts a one-to-one battery cell recharging technology, which can simultaneously recharge all cells in the battery pack as needed, thereby improving the performance of the entire battery pack.

[0015] Furthermore, the deteriorated UPS battery is repaired by adding a repair fluid that catalyzes the decomposition of lead sulfate crystals, thereby restoring and improving the charge and discharge capacity of the UPS battery pack. The present invention particularly emphasizes the overall repair of the UPS battery pack, rather than repairing only the deteriorated battery cells when a certain battery cell is deteriorated, and is considered based on the overall performance of the UPS battery pack. By adding a battery repair fluid of a corresponding capacity to the cells of the entire battery group according to the battery capacity, it can be simultaneously ensured that the electrochemical characteristics of any battery cell in the battery pack are uniformly treated. The added battery repair fluid contains nanomaterials that catalyze the decomposition of lead sulfate crystals, which can catalyze the decomposition of lead sulfate crystals, restore the substances of the battery's electrochemical reaction, and restore the overall performance of the battery.

[0016] Furthermore, the invention proposes to add the UPS battery online core capacity charging and discharging device, which can realize the online core capacity charging and discharging of the UPS battery group. The periodic core capacity charging and discharging can suppress the crystallization speed of the non-steady-state lead sulfate in the battery to form a steady-state lead sulfate crystallization. Its role is complementary to the battery life extension and other measures to extend the battery life.

[0017] First, the UPS battery online capacity control device has a built-in module for intermittent battery charging, which allows the battery pack to rest and charge regularly. The energy for charging the battery pack can be obtained from the UPS battery online capacity control device without the need for the UPS DC bus, ensuring the safety of the UPS itself.

[0018] Secondly, through the UPS battery online capacity verification device, the battery pack performance data after the battery pack is discharged can be obtained through the capacity verification device. The data includes the capacity of the battery pack, the battery cell voltage, the battery pack cell temperature, the battery cell internal resistance and other data. These data provide a basis for the battery cell replenishment. The central controller can issue a battery cell replenishment command based on these data. Moreover, the UPS battery online capacity verification device can certify the overall discharge capacity of the battery pack after the battery cell replenishment.

[0019] Furthermore, the overall repair of UPS batteries also relies on the UPS battery online capacity verification device. After the battery repair fluid is added to the battery cell, a certain voltage needs to be applied to the battery cell. This energy is the external electromotive force required to catalyze the crystallization of lead sulfate. The charging and discharging of the battery pack can achieve the energy required for battery repair and verify the effect of battery repair.

[0020] A computer program in a central controller of a UPS battery life extension control device can adjust control parameters and upgrade programs according to the effect of battery life extension. The central controller is the core control component of the present invention, and all commands, data releases and storage are related to the central controller. UPS battery packs have a large number of battery cells, and all data and operations rely on CPU program control.

[0021] The central controller enables the present invention to have local and remote control capabilities, and also enables the present invention to be executed and authenticated in an intelligent manner. The actual technical data of the central controller can form corresponding reports, forming a closed-loop data for UPS battery life extension.

[0022] The beneficial effect of the present invention is that, compared with the prior art, the present invention can solve the problem of extending the life of UPS batteries, and the functions and performance of extending the life of UPS batteries can be visualized and digitized. On the basis of ensuring the extension of the life of UPS batteries, the UPS battery performance is fully technically guaranteed. Moreover, based on the UPS battery capacity data, an early warning mechanism for UPS batteries is formed to ensure efficient and safe power supply of UPS, better serve the society, and generate huge social and economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 UPS battery life extension test flow chart of the present invention;

[0024] Figure 2 UPS battery core capacity discharge flow chart of the present invention;

[0025] Figure 3 UPS battery repair flow chart of the present invention;

[0026] Figure 4 UPS battery single unit charging flow chart of the present invention;

[0027] Figure 5 Schematic diagram of the 380V UPS battery life extension system of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Below, we briefly describe the four flow charts of the present invention:

[0030] See also Figure 1This process is only a comparative process for verifying the battery life extension, that is, a process for comparing the life extension technology using battery packs of the same brand and put into operation at the same time. In the comparison process, the cycle for comparing battery performance can be 1 month, 1 quarter, or of course, half a year. In actual testing and comparison, the time for test comparison is relatively slow because the characteristics of the lead-acid battery itself change relatively slowly, so it is unnecessary to compare too frequently. For batteries that have been working for a certain number of years and whose performance declines rapidly, a more frequent test comparison cycle can be used.

[0031] Figure 2 UPS battery core capacity discharge flow chart. Battery core capacity discharge itself needs to follow the principles of ensuring UPS safety and core capacity discharge safety. This part will not be described in detail.

[0032] Figure 3 UPS battery repair flow chart, this process itself is the process of repairing the entire battery group. In the figure, the relationship between adding battery repair fluid and battery capacity is clearly emphasized, and the process of applying external electromotive force to catalyze the decomposition of lead sulfate after the battery is added with the repair fluid is emphasized. As we all know, the physical structure and chemical properties of the lead-acid battery itself may lead to large differences in the addition and penetration time of the battery repair and the degree of lead sulfate crystallization of the battery itself, and the charging and discharging time required for battery repair will be different. It must be a neutral repair fluid with a pH value of 7, otherwise, the electrolyte, electrolyte density, and other chemical reaction substances of the battery itself may be affected; in addition, the repair fluid proposed in the present invention is only a material that catalyzes the decomposition of lead sulfate crystals, and only needs to be added once. In the actual repair process, the charging and discharging of this battery repair is completed by the battery core capacity charging and discharging device, and no excessive explanation is needed. It should be emphasized that the added battery repair fluid only needs to be added once.

[0033] Figure 4 UPS battery cell recharging flow chart, this is a flow chart for recharging battery cells. Obviously, only some or some of the battery cells in the battery pack need to be recharged. When the undercharged battery cells are recharged, the charging and discharging capacity of the battery cells is improved, and the overall charging and discharging capacity of the battery pack is improved. The performance evaluation mechanism of the battery pack follows the "barrel principle". The capacity of the battery cell with the lowest capacity is the capacity of the battery pack. Through the recharging operation, the overall performance of the battery pack can be improved.

[0034] Below, we describe the principles and implementation methods of the above key technical points through specific working principles.

[0035] Figure 5 This is a schematic diagram of the 380V UPS battery life extension system. Figure 5K1 and K2 are programmable switches. When K1 and K2 are open, the battery pack is disconnected from the UPS bus. At this time, the battery pack 1 and battery pack 2 can be charged and discharged at the same time. When K1 and K2 are closed, the battery pack returns to the normal working state. Figure 1 When the battery life extension comparison process is carried out, K1 can be opened, K2 can be closed, and battery group 1 and battery group 2 can be subjected to life extension comparison test.

[0036] In the figure, even if K1 and K2 are both open, Figure 5 It can be found in the figure that both battery group 1 and battery group 2 can provide uninterrupted power to the UPS DC bus through D1 and D2.

[0037] from Figure 5 It can be found that the core capacity charging and discharging of the battery pack adopts the method of switching the battery pack, and the inverter grid-connected method is used to realize the discharge of the battery pack. When the energy of the battery pack is discharged, the electric energy is released to the mains to realize the discharge recovery of the battery electric energy. When charging the battery, the mains can be converted into direct current to realize the charging of the battery pack. Both battery pack 1 and battery pack 2 can be switched for charging and discharging tests.

[0038] When K1 is turned on, battery pack 1 enters a static state. If K1 is turned on for a long time, the battery pack will remain static because no floating charge voltage is applied to battery pack 1. However, all battery packs have self-discharge. If the battery pack is in a static state for a long time, the self-discharge of the battery will cause the battery pack to gradually lose power, resulting in the stimulation of sulfation, and ultimately causing the battery pack to fail. To avoid this situation, the central controller regularly outputs intermittent charging commands, allowing the battery pack to be regularly charged through the battery pack capacity control device to offset the problem caused by battery self-discharge.

[0039] We further describe this process through the chemical reaction equation of the lead-acid battery:

[0040] Charging process:

[0041] Cathode: PbSO4+2e - = Pb +SO4 2-

[0042] anode: PbSO4 -2e - +2H2O= PbO2 +4H + +SO4 2-

[0043] From the above figure, we can see that the battery charging process requires external electromotive force and the provision of electrons to allow the chemical reaction of battery charging to proceed. Figure 5It can be found that since the switch K1 is disconnected, the battery pack 1 does not provide charging electromotive force to the battery, so the battery is in a static state. When the battery pack is in a static state, the battery pack does not have the battery polarization phenomenon caused by the external application of fixed electromotive force.

[0044] Discharge process:

[0045] negative electrode: Pb -2e - +SO4 2- = PbS 4

[0046] Positive electrode: PbO2+2e - +SO4 2- +4H + =PbSO4+2H2O

[0047] The discharge process of the battery is the process of losing electrons, mainly due to external load. Figure 5 D1 is a unidirectional diode, which supports the battery energy to be output from the positive electrode, so the battery can discharge and output energy to the outside without being affected by K1.

[0048] Figure 5 When we carry out battery repair, the battery core capacity charging and discharging device can charge and discharge the battery pack under the command of the central controller, which can provide electromotive force for catalyzing the crystallization of lead sulfate and catalyzing the decomposition of lead sulfate. The effect of battery repair is proved by core capacity discharge.

[0049] Figure 5 In the figure, the marked single cell module is actually a single cell module connected to each battery cell. This single cell module has the function of replenishing power for the battery cell based on the voltage, internal resistance and temperature collection of the battery cell.

[0050] In actual use, our battery charging current is set at 100mA. Theoretically, 2.4AH can be charged to the battery every day. Due to the particularity of UPS operation, it is in a standby state for a long time. Although the energy of the battery charging is not much, it can charge more than 20AH in 10 days, which fully meets the needs of UPS battery pack single-cell charging.

[0051] The other parts in the figure are relatively common technologies and will not be introduced in detail here.

[0052] Those skilled in the art should be aware that, although the various methods of the present application are described based on the same concept and thus present commonality to each other, unless otherwise specified, these methods can be independently executed. Similarly, for each embodiment disclosed in the present application, they are all proposed based on the same inventive concept, therefore, concepts with the same expression, and concepts that are appropriately changed for convenience despite different expressions, should be understood as equivalent.

[0053] Unless the mutually exclusive relationship between the embodiments to be disclosed in this application is explicitly stated, the relevant technical features involved in each embodiment can be cross-combined to flexibly construct a new embodiment, as long as such combination does not deviate from the creative spirit of this application and can meet the needs of the prior art or solve certain deficiencies in the prior art. Those skilled in the art should be aware of this flexibility.

[0054] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A UPS battery life extension control method, device, equipment and medium method, characterized in that: It includes the following four steps: S1, UPS batteries use intermittent charging instead of traditional long-term floating charging, which greatly shortens the battery life caused by battery polarization due to online floating charging. S2 adopts UPS battery single-cell charging technology, which allows each battery cell to be independently charged, thus maximizing the charging and discharging capacity of the battery pack. Battery single-cell charging allows the battery cells to be fully charged for a long time, suppressing the formation rate of lead sulfate crystals. S3, the deteriorated UPS battery is repaired by adding a repair liquid that catalyzes the crystallization and decomposition of lead sulfate to restore and improve the charge and discharge capacity of the UPS battery pack. S4, adding an online core capacity charging and discharging device for UPS batteries can realize online core capacity charging and discharging of UPS battery packs. Periodic core capacity charging and discharging can suppress the crystallization rate of non-steady-state lead sulfate in the battery to form steady-state lead sulfate.

2. A UPS battery life extension control method, device, equipment and medium as claimed in claim 1, characterized in that: The time period of intermittent charging of the battery pack can be set, and the time of intermittent charging is set according to the size of the self-discharge rate of the battery pack.

3. A UPS battery life extension control method, device, equipment and medium method as described in claim 1, wherein the battery cell power replenishment adopts one-to-one single cell power replenishment, and the power replenishment voltage, current and time can be set and measured.

4. A UPS battery life extension control method, device, equipment and medium method as described in claim 1, wherein the repair of the UPS battery is to add repair fluid to the entire group of batteries for repair, rather than only repairing the deteriorated battery cells.

5. A UPS battery life extension control method, device, equipment and medium method as described in claim 1, for charging and discharging the core capacity of the UPS battery pack, in addition to the normal UPS battery regular maintenance charging and discharging, it can also intelligently charge and discharge according to the UPS battery life extension needs, obtain battery pack performance data, and provide technical parameters in conjunction with battery life extension operations.

6. A UPS battery life extension control device, comprising a battery pack intelligent charging and discharging device, a battery cell charging device, a battery repair fluid and a central controller. The central controller controls the operation of the battery life extension device, which can be operated and controlled locally or remotely through the network. The central processor is used to call and run a computer program stored in the memory of the central controller, and the computer program is a computer program that implements the UPS battery life extension control device described in claims 1-5.

7. A computer program in a central controller of a UPS battery life extension control device can adjust control parameters and upgrade the program according to the effect of battery life extension.

8. A UPS battery life extension control method, device, equipment and medium method, the conclusion of UPS battery life extension is based on the international standard 0.1C core capacity discharge result as a closed-loop conclusion.

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