Standby power management system and standby power management method

Abstract

The present disclosure relates to a backup power management system and a backup power management method. The backup power management system comprises a power supply unit, a backup power unit, a system control unit and a power monitoring unit. The power supply unit supplies power to an electrical device by an external power source. The backup power unit supplies power to the electrical device when the power supply unit fails to supply power to the electrical device. The power monitoring unit monitors the status of the power supply unit and the backup power unit to transmit a supplemental charging information to the system control unit when the power supply unit is able to supply power normally and the remaining power of the backup power unit is lower than a preset supplemental power threshold, for the system control unit to determine a supplemental charging strategy of the power supply unit to the backup power unit. The system control unit determines the supplemental charging strategy based on a comparison of a load rate of the external power source and a preset load rate threshold. The power monitoring unit receives the supplemental charging strategy from the system control unit and controls the power supply unit to perform supplemental charging to the backup power unit according to the supplemental charging strategy.

Description

Technical Field

[0001] This disclosure relates generally to the field of power supply technology, and more specifically to a backup power management system and a backup power management method. Background Technology

[0002] In many applications, the requirement for continuous power supply to electrical equipment is high. Therefore, to prevent equipment from malfunctioning due to external power fluctuations or interruptions, backup power supplies (also referred to as backup power in this article) are necessary. As a typical example, data centers have stringent requirements for the continuity of power supply to their information technology (IT) equipment. Therefore, data centers typically use a large number of uninterruptible power supplies (UPS) and / or high-voltage direct current systems (HVDC) as backup power to provide a relatively continuous power supply to IT equipment, preventing significant losses due to power outages caused by mains power or diesel generators.

[0003] When the external power supply recovers from a fault, the backup power supply is no longer needed to power the equipment. However, the backup power supply is currently depleted and requires recharging to prepare for the next external power supply failure. Typically, when the external power supply returns to normal, it automatically supplies power to the equipment and simultaneously recharges the backup power supply. However, this recharging of the backup power supply by the external power supply may interfere with the power supply to the equipment. Therefore, an improved backup power management system and method are desired. Summary of the Invention

[0004] According to one aspect of this disclosure, a backup power management system is provided, comprising: a power supply unit configured to supply power to electrical equipment using an external power source; a backup power supply unit configured to supply power to the electrical equipment when the power supply unit is unable to supply power; a system control unit configured to determine a supplementary charging strategy for the backup power supply unit; and a power monitoring unit configured to: monitor the status of the power supply unit and the backup power supply unit, and when the power supply unit is able to supply power normally and the remaining power of the backup power supply unit is lower than a preset supplementary power threshold, transmit supplementary charging information to the system control unit for the system control unit to determine the supplementary charging strategy; and receive the supplementary charging strategy from the system control unit and, based on the supplementary charging strategy, transmit supplementary charging information to the system control unit for the system control unit to determine the supplementary charging strategy; and receive the supplementary charging strategy from the system control unit and, based on the supplementary charging strategy, transmit supplementary charging information to the system control unit for the system control unit to determine the supplementary charging strategy. The power supply unit is controlled by an electrical strategy to supplement the backup power supply unit with additional charging. The supplementary charging information includes the load rate of the external power source connected to the power supply unit and the remaining power of the backup power supply unit. The system control unit is configured to determine whether the load rate of the external power source exceeds a preset load rate threshold, and: when the load rate of the external power source does not exceed the preset load rate threshold, a first supplementary charging strategy is determined and transmitted to the power monitoring unit, indicating that supplementary charging should begin immediately; when the load rate of the external power source exceeds the preset load rate threshold, a second supplementary charging strategy is determined and transmitted to the power monitoring unit, indicating that supplementary charging should begin after a supplementary charging waiting period.

[0005] In some embodiments, the system control unit is configured to identify the power consumption scenario of the external power source and determine a preset load rate threshold based on the identified power consumption scenario.

[0006] In some embodiments, the preset load rate threshold is determined as an adjustment amount corresponding to the identified electricity consumption scenario based on a default load rate threshold, wherein the electricity consumption scenario is based on one or more of the following: electricity price, electricity consumption period, and electricity equipment demand.

[0007] In some embodiments, the power monitoring unit is configured to, in response to receiving the second supplementary charging strategy, after the supplementary charging waiting period has elapsed, either control the power supply unit to directly begin supplementary charging of the backup power supply unit; or transmit the current supplementary charging information to the system control unit for it to re-determine the supplementary charging strategy.

[0008] In some embodiments, the system control unit is further configured to determine whether the remaining power of the backup power unit is lower than a preset warning power threshold, and when the remaining power of the backup power unit is lower than the preset warning power threshold, to determine and transmit the first supplementary charging strategy to the power monitoring unit regardless of whether the load rate of the external power supply exceeds a preset load rate threshold, wherein the preset warning power threshold is set to enable the backup power unit to maintain the operation of the electrical equipment for a preset reference time determined based on the historical failure time of the power supply unit.

[0009] In some embodiments, the system control unit is configured to determine and transmit a third supplementary charging strategy to the power monitoring unit when the remaining power of the backup power unit is lower than a preset warning power threshold and the load rate of the external power supply exceeds a preset load rate threshold. The third supplementary charging strategy indicates that supplementary charging should begin directly until the remaining power of the backup power unit is not lower than the preset warning power threshold. The power monitoring unit is configured to control the power supply unit to supplement the backup power unit in response to receiving the third supplementary charging strategy until the remaining power of the backup power unit is not lower than the preset warning power threshold. Then, it continues to monitor the status of the power supply unit and the backup power unit so that when the power supply unit is able to supply power normally and the remaining power of the backup power unit is still lower than the preset supplementary power threshold, it transmits the current supplementary charging information to the system control unit so that the system control unit can re-determine the supplementary charging strategy.

[0010] In some embodiments, the supplementary charging strategy indicates that the backup power unit is supplemented and charged to a preset percentage of the backup power unit's power deficit. The power monitoring unit is configured to, in response to receiving the supplementary charging strategy, control the power supply unit to supplement and charge the backup power unit to the preset percentage of the backup power unit's power deficit, and then continue to monitor the status of the power supply unit and the backup power unit. When the power supply unit is able to supply power normally and the remaining power of the backup power unit is still lower than a preset supplementary power threshold, the current supplementary charging information is transmitted to the system control unit for it to re-determine the supplementary charging strategy.

[0011] In some embodiments, the supplementary charging strategy includes multiple pairs of supplementary charging start times and supplementary charging durations, and the system control unit is configured to sequentially transmit each pair of the multiple pairs of supplementary charging start times and supplementary charging durations to the power monitoring unit, such that each time the power monitoring unit receives a corresponding pair of the multiple pairs of supplementary charging start times and supplementary charging durations, it controls the power supply unit to start supplementary charging of the backup power unit for the supplementary charging duration of the corresponding pair at the supplementary charging start time in the corresponding pair.

[0012] In some embodiments, the power monitoring unit is further configured to: perform a self-circulating wait after transmitting the supplementary charging information to the system control unit; when receiving the supplementary charging strategy from the system control unit before the self-circulating wait reaches a preset self-circulating wait time, control the power supply unit to supplement the backup power supply unit according to the supplementary charging strategy; and when the self-circulating wait reaches the preset self-circulating wait time but the supplementary charging strategy is not received from the system control unit, control the power supply unit to supplement the backup power supply unit according to local control logic.

[0013] In some embodiments, the power monitoring unit is further configured to: delay waiting if it is unable to transmit supplementary charging information to the system control unit; and when the delay waiting reaches a preset delay waiting time, control the power supply unit to supplement the backup power supply unit according to the local control logic.

[0014] According to another aspect of this disclosure, a backup power management method is provided, comprising: monitoring the status of a power supply unit and a backup power supply unit for an electrical device; transmitting supplementary charging information to determine a supplementary charging strategy for the power supply unit to the backup power supply unit when the power supply unit is able to supply power normally and the remaining power of the backup power supply unit is lower than a preset supplementary power threshold; the supplementary charging information includes the load rate of an external power source connected to the power supply unit and the remaining power of the backup power supply unit; when the load rate of the external power source does not exceed a preset load rate threshold, controlling the power supply unit to directly start supplementary charging of the backup power supply unit in response to receiving a first supplementary charging strategy; and when the load rate of the external power source exceeds a preset load rate threshold, controlling the power supply unit to start supplementary charging of the backup power supply unit after a supplementary charging waiting period in response to receiving a second supplementary charging strategy.

[0015] In some embodiments, the backup power management method further includes identifying the power consumption scenarios of the external power source and determining a preset load rate threshold based on the identified power consumption scenarios.

[0016] In some embodiments, the preset load rate threshold is determined as an adjustment amount corresponding to the identified electricity consumption scenario based on a default load rate threshold, wherein the electricity consumption scenario is based on one or more of the following: electricity price, electricity consumption period, and electricity equipment demand.

[0017] In some embodiments, the backup power management method further includes, in response to receiving the second supplementary charging strategy, after the supplementary charging waiting period has elapsed: controlling the power supply unit to directly begin supplementary charging of the backup power unit; or transmitting current supplementary charging information for re-determining the supplementary charging strategy.

[0018] In some embodiments, the backup power management method further includes: when the remaining power of the backup power unit is lower than a preset warning power threshold, in response to receiving the first supplementary charging strategy, controlling the power supply unit to directly start supplementary charging of the backup power unit, regardless of whether the load rate of the external power supply exceeds a preset load rate threshold, wherein the preset warning power threshold is set to enable the backup power unit to maintain the operation of the electrical equipment for a preset reference time determined based on the historical fault time of the power supply unit.

[0019] In some embodiments, the backup power management method further includes: when the remaining power of the backup power unit is lower than a preset warning power threshold and the load rate of the external power supply exceeds a preset load rate threshold, in response to receiving a third supplementary charging strategy, controlling the power supply unit to supplement the backup power unit until the remaining power of the backup power unit is not lower than the preset warning power threshold, and then continuing to monitor the status of the power supply unit and the backup power unit, so as to transmit the current supplementary charging information for re-determining the supplementary charging strategy when the power supply unit is able to supply power normally and the remaining power of the backup power unit is still lower than the preset supplementary power threshold.

[0020] In some embodiments, the supplementary charging strategy indicates that the backup power unit is supplemented and charged to a preset percentage of the power deficit of the backup power unit, and the backup power management method further includes: in response to receiving the supplementary charging strategy, controlling the power supply unit to supplement and charge the backup power unit to a preset percentage of the power deficit of the backup power unit, and then continuing to monitor the status of the power supply unit and the backup power unit, so as to transmit the current supplementary charging information for re-determining the supplementary charging strategy when the power supply unit is able to supply power normally and the remaining power of the backup power unit is still lower than a preset supplementary power threshold.

[0021] In some embodiments, the supplementary charging strategy includes multiple pairs of supplementary charging start times and supplementary charging durations, and the backup power management method further includes: sequentially receiving each pair of the multiple pairs of supplementary charging start times and supplementary charging durations, such that each time in response to receiving a corresponding pair of the multiple pairs of supplementary charging start times and supplementary charging durations, the power supply unit is controlled to start supplementary charging of the backup power supply unit for the supplementary charging duration of the corresponding pair at the supplementary charging start time in the corresponding pair.

[0022] In some embodiments, the backup power management method further includes: performing a self-circulating wait after transmitting the supplementary charging information; when the supplementary charging strategy is received before the self-circulating wait reaches a preset self-circulating wait time, controlling the power supply unit to supplement the backup power supply unit according to the supplementary charging strategy; and when the self-circulating wait reaches the preset self-circulating wait time but the supplementary charging strategy is not received, controlling the power supply unit to supplement the backup power supply unit according to local control logic.

[0023] In some embodiments, the backup power management method further includes: if supplementary charging information cannot be transmitted, a delay is performed; and when the delay reaches a preset delay duration, the power supply unit is controlled to supplement the backup power supply unit according to the local control logic.

[0024] Other features and advantages of this disclosure will become clearer from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0025] The foregoing and other features and advantages of this disclosure will become clear from the following description of embodiments illustrated in conjunction with the accompanying drawings. The drawings, incorporated herein and forming a part of the specification, are further used to explain the principles of this disclosure and to enable those skilled in the art to make and use it. Wherein:

[0026] Figure 1 This is a schematic block diagram illustrating a backup power management system according to an embodiment of the present disclosure;

[0027] Figure 2 It is shown Figure 1 A flowchart illustrating the backup power management process of the backup power management system;

[0028] Figure 3 This is a flowchart illustrating a backup power management method according to an embodiment of the present disclosure.

[0029] Note that in the embodiments described below, the same reference numerals are sometimes used across different figures to denote the same parts or parts with the same function, and repeated descriptions are omitted. In some cases, similar reference numerals and letters are used to denote similar items, so once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0030] For ease of understanding, the positions, dimensions, and extents of the structures shown in the accompanying drawings and other materials may not represent actual positions, dimensions, and extents. Therefore, this disclosure is not limited to the positions, dimensions, and extents disclosed in the accompanying drawings and other materials. Detailed Implementation

[0031] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.

[0032] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this disclosure or its application or use. That is, the structures and methods herein are shown in an exemplary manner to illustrate different embodiments of the structures and methods in this disclosure. However, those skilled in the art will understand that they merely illustrate exemplary ways that can be used to implement this disclosure, and not exhaustive ways. Furthermore, the drawings are not necessarily drawn to scale, and some features may be enlarged to show details of specific components.

[0033] In addition, techniques, methods and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods and equipment should be considered part of the specification.

[0034] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0035] In the following text, data centers will be used as a non-limiting example application scenario. However, it is understood that the embodiments described herein are not limited to data centers, but can be applied to any application scenario involving backup power.

[0036] Figure 1 A backup power management system 100 according to some embodiments of the present disclosure is shown. For example... Figure 1 As shown, the backup power management system 100 includes a power supply unit 102, a backup power supply unit 104, a system control unit 106, and a power monitoring unit 108.

[0037] Power supply unit 102 is configured to supply power to the electrical equipment using an external power source. Backup power supply unit 104 is configured to supply power to the electrical equipment when power supply unit 102 is unable to supply power (e.g., when the external power source connected to power supply unit 102 experiences a failure such as fluctuation or interruption). The external power source referred to herein is relative to the electrical equipment. For example, in a data center, the electrical equipment may be IT equipment, the external power source may be mains power and / or a diesel generator from the data center, etc. Power supply unit 102 may be a power supply device that receives power from mains power and / or the diesel generator and supplies power to the IT equipment, and backup power supply unit 104 may be a UPS and / or HVDC device. Thus, when a failure such as fluctuation or interruption in the mains power and / or diesel generator causes power supply unit 102 to be unable to supply power to the IT equipment, backup power supply unit 104 can supply power to the IT equipment to maintain its operation, thereby preventing significant losses due to the data center's inability to provide normal services. When the mains power and / or diesel generator power is restored, power supply unit 102 can resume normal power supply to the IT equipment. At this point, the backup power unit 104 is no longer needed to power the IT equipment, and the backup power unit 104 is experiencing a power deficit. To ensure that the backup power unit 104 has sufficient power to cope with future external power failures, it needs to be recharged. In this embodiment, when the power supply unit 102 can normally utilize external power, the backup power unit 104 is recharged by the power supply unit 102. The specific recharge strategy will be determined and executed collaboratively by the system control unit 106 and the power monitoring unit 108.

[0038] The power monitoring unit 108 is configured to monitor the status of the power supply unit 102 and the backup power supply unit 104. For example, the power monitoring unit 108 can monitor in real time whether the power supply unit 102 can supply power normally, the load rate of the external power supply connected to the power supply unit 102, etc. The power monitoring unit 108 can also monitor in real time the remaining power, power deficit, and lifespan of the backup power supply unit 104. The power monitoring unit 108 is further configured to transmit supplementary charging information to the system control unit 106 when the power supply unit 102 can supply power normally and the remaining power of the backup power supply unit 104 is lower than a preset supplementary charging threshold, so that the control unit can determine the supplementary charging strategy of the power supply unit 102 for the backup power supply unit 104. The preset supplementary charging threshold can be reasonably set according to specific circumstances, for example, between 50% and 70%, or between 55% and 65%, or 60%. The supplementary charging information may include the load rate of the external power supply connected to the power supply unit 102 and the remaining power of the backup power supply unit 104. The power monitoring unit 108 is also configured to receive a supplementary charging strategy determined by the system control unit 106 and control the power supply unit 102 to supplement the backup power supply unit 104 according to the received supplementary charging strategy.

[0039] The system control unit 106 is configured to determine the supplementary charging strategy of the power supply unit 102 for the backup power supply unit 104. The system control unit 106 may be a control unit dedicated to the backup power management system 100, or it may be any suitable control unit used in the scenario in which the backup power management system 100 is applied. For example, in a data center, the system control unit 106 may be the central control system of the data center or a component thereof.

[0040] Specifically, the system control unit 106 can be configured to determine whether the load rate of the external power supply exceeds a preset load rate threshold. The preset load rate threshold can be reasonably set according to specific circumstances, for example, it can be between 60% and 80%, or between 65% and 75%, or 70%. When the load rate of the external power supply does not exceed the preset load rate threshold, the system control unit 106 can determine and transmit a first supplementary charging strategy to the power monitoring unit 108, the first supplementary charging strategy indicating that supplementary charging should begin directly. At this time, the power monitoring unit 108 can control the power supply unit 102 to directly begin supplementary charging of the backup power supply unit 104 in response to receiving the first supplementary charging strategy from the system control unit 106. In some embodiments, the first supplementary charging strategy can indicate that supplementary charging should begin directly until the remaining power of the backup power supply unit 104 is not lower than a preset stop-charging threshold. The preset stop-charging threshold can be greater than the preset supplementary power threshold and can be reasonably set according to specific circumstances, for example, it can be between 90% and 100%, or between 93% and 97%, or 95%. When the load rate of the external power supply exceeds a preset load rate threshold, the system control unit 106 can determine and transmit a second supplementary charging strategy to the power monitoring unit 108. The second supplementary charging strategy indicates that supplementary charging will begin after a supplementary charging waiting period. At this time, the power monitoring unit 108 can, in response to receiving the second supplementary charging strategy from the system control unit 106, control the power supply unit 102 to directly begin supplementary charging of the backup power supply unit 104 after the supplementary charging waiting period specified by the system control unit 106. In some embodiments, the second supplementary charging strategy may indicate that supplementary charging will begin after the supplementary charging waiting period until the remaining power of the backup power supply unit 104 is not lower than a preset stop-charging threshold. Alternatively, the power monitoring unit 108 may, in response to receiving the second supplementary charging strategy from the system control unit 106, transmit the current supplementary charging information to the system control unit 106 after the supplementary charging waiting period so that it can re-determine the supplementary charging strategy (e.g., especially when the supplementary charging waiting period is long, causing the load rate of the external power supply or the preset load rate threshold to change significantly, or when a power outage occurs during the supplementary charging waiting period, causing the power supply unit 102 to be unable to supply power normally).

[0041] In some embodiments, the system control unit 106 may be configured to identify the power consumption scenario of the external power source and determine a preset load rate threshold based on the identified power consumption scenario. As a non-limiting example, the power consumption scenario may be based on one or more of the following: electricity price, power consumption period, and demand of the power-consuming equipment. For example, in some examples, when determining a supplementary charging strategy, if the electricity price is higher at that time, the preset load rate threshold can be set lower, making it less likely to trigger the first supplementary charging strategy when the electricity price is high, thus avoiding unnecessary electricity costs. Additionally, in some examples, the preset load rate threshold for peak power consumption periods (e.g., 8:30-11:30, 18:00-23:00) may be set such that the preset load rate threshold for low power consumption periods (e.g., 7:00-8:30, 11:30-18:00) is lower than the preset load rate threshold for low power consumption periods (e.g., 23:00-7:00 the next day), thereby making it less likely to trigger the first supplementary charging strategy during peak power consumption periods, thus avoiding unnecessary power shortages. Additionally, in some examples, when determining the supplementary charging strategy, if the demand from the power-consuming equipment is high at that time, the preset load rate threshold can be set lower. This makes it less likely that the first supplementary charging strategy will be triggered when the demand from the power-consuming equipment is high, thus avoiding affecting the normal operation of the equipment. For example, the time when people need data center services is often concentrated between 19:00 and 24:00. During this time, the data center needs to activate a large number of IT devices to operate at high power to provide the IT services needed by people. At this time, priority should be given to ensuring power supply to IT devices, rather than supplementary charging of backup power units. In some examples, the preset load rate threshold can be determined as an adjustment amount based on the default load rate threshold corresponding to the identified power consumption scenario. The default load rate threshold can be set appropriately as needed, for example, it can be set to any appropriate value that does not exceed the maximum load rate that the external power supply can withstand, or it can be set to any appropriate value that does not exceed the optimal load rate of the external power supply. As an illustrative and non-limiting example, when determining the supplementary charging strategy, if the electricity consumption scenario at this time involves both high electricity prices and falls within peak electricity consumption hours and periods of high demand for electrical equipment, the preset load rate threshold can be determined by subtracting the adjustment amount corresponding to high electricity prices, peak electricity consumption hours, and periods of high demand for electrical equipment from the default load rate threshold. If the electricity consumption scenario at this time involves both low electricity prices and falls within off-peak electricity consumption hours and periods of high demand for electrical equipment, the preset load rate threshold can be determined by adding the adjustment amount corresponding to low electricity prices, adding the adjustment amount corresponding to off-peak electricity consumption hours, and subtracting the adjustment amount corresponding to periods of high demand for electrical equipment from the default load rate threshold.The power consumption scenarios and their corresponding preset load rate thresholds or default load rate thresholds, as well as the power consumption scenarios and their corresponding adjustment values, can be stored in the system control unit 106 or in a storage device accessible to the system control unit 106 in the form of a suitable data structure such as a table, so that the system control unit 106 can retrieve them.

[0042] By setting a preset load rate threshold, it is possible to appropriately determine whether to perform supplementary charging immediately or after a delay. This allows for flexible time-sharing management of the supplementary charging of the backup power unit 104 based on dynamic load demand changes. This effectively avoids supplementary charging of the backup power unit 104 during power consumption scenarios such as high electricity prices, peak electricity consumption periods, and periods with high demand from electrical equipment. Furthermore, the electrical energy originally intended for supplementary charging of the backup power unit 104 can be effectively transferred to electrical equipment, thereby reasonably optimizing electricity costs, optimizing the utilization rate of charging power, providing more power security for electrical equipment, optimizing the power allocation rate of external power sources, and increasing the efficiency or output rate of each unit of electricity consumption.

[0043] In addition to the preset load rate threshold, in some embodiments, the system control unit 106 may also be configured to determine whether the remaining power of the backup power unit 104 is lower than a preset warning power threshold, and when the remaining power of the backup power unit 104 is lower than the preset warning power threshold, determine and transmit an instruction to the power monitoring unit 108 to directly start supplementary charging, regardless of whether the load rate of the external power supply exceeds the preset load rate threshold. The preset warning power threshold may be lower than the preset supplementary power threshold and can be reasonably set according to specific circumstances, for example, it may be between 10% and 30%, or between 15% and 25%, or 20%.

[0044] A preset warning power threshold can be set to ensure that the backup power unit 104 can maintain the operation of the electrical equipment for a preset reference time. The preset reference time can be reasonably set according to specific circumstances, for example, it can be between 10 seconds and 30 minutes, or between 20 seconds and 10 minutes, or between 30 seconds and 5 minutes, or between 1 minute and 2 minutes. In some embodiments, the preset reference time can be determined based on the historical failure time of the power supply unit 102. The historical failure time refers to the duration of each time the power supply unit 102 has been unable to supply power to the electrical equipment in the past. For example, the preset reference time can be a suitable statistical measure of the historical failure time, such as the average of all historical failure times, or the average of all historical failure times after removing the maximum and minimum values, or it can be the quarter-digit, median, three-quarter-digit, etc. of all historical failure times, which can be determined according to specific needs and is not particularly limited here. In some embodiments, historical fault time can be first categorized by fault occurrence scenario and then statistically analyzed separately. A preset reference time corresponding to each fault occurrence scenario is determined based on the historical fault time for each scenario, and then a preset warning power threshold corresponding to the preset reference time is determined. The fault occurrence scenario, the corresponding preset reference time, and the preset warning power threshold can then be stored in the system control unit 106 or in a storage device accessible to the system control unit 106 in the form of a suitable data structure such as a table. This allows the system control unit 106 to query the corresponding preset warning power threshold after predicting a possible future fault scenario for the power supply unit 102. As a non-limiting example, a fault occurrence scenario can be a period of time during which a fault occurs. For example, a fault occurring in a certain month or quarter may be similar to the situation in the same month or quarter of previous years. Therefore, the preset reference time for that month or quarter can be determined based on the historical fault time for the same month or quarter of previous years, and thus the preset warning power threshold can be determined.

[0045] The system control unit 106 can also combine a preset warning power threshold and a preset load rate threshold to make supplementary charging strategy decisions. In some embodiments, the system control unit 106 can be configured to determine and transmit a third supplementary charging strategy to the power monitoring unit 108 when the remaining power of the backup power unit 104 is lower than the preset warning power threshold and the load rate of the external power supply exceeds the preset load rate threshold. The third supplementary charging strategy indicates that supplementary charging should start directly until the remaining power of the backup power unit is not lower than the preset warning power threshold. In this case, the power monitoring unit 108 can be configured to control the power supply unit 102 to supplement the backup power unit 104 in response to receiving the third supplementary charging strategy from the system control unit 106 until the remaining power of the backup power unit 104 is not lower than the preset warning power threshold, and then continue to monitor the status of the power supply unit 102 and the backup power unit 104 so that when the power supply unit 102 can supply power normally and the remaining power of the backup power unit 104 is still lower than the preset supplementary power threshold, the current supplementary charging information is transmitted to the system control unit 106 for it to re-determine the supplementary charging strategy.

[0046] Furthermore, in some embodiments, the system control unit 106 may also be configured to determine and transmit an instruction to the power monitoring unit 108 to directly begin supplementary charging until the remaining power of the backup power unit 104 is not lower than a preset warning power threshold and the load rate of the external power supply does not exceed a preset load rate threshold when the remaining power of the backup power unit 104 is lower than a preset stop-charging power threshold. In this case, the power monitoring unit 108 may be configured to control the power supply unit 102 to supplement the backup power unit 104 until the remaining power of the backup power unit 104 is not lower than the preset stop-charging power threshold in response to receiving the above-mentioned supplementary charging strategy from the system control unit 106, and then continue to monitor the status of the power supply unit 102 and the backup power unit 104. When the remaining power of the backup power unit 104 is not lower than the preset warning power threshold, the situation may be similar to the aforementioned case where only the load rate of the external power supply is considered to exceed the preset load rate threshold, and will not be described again here.

[0047] Therefore, the backup power unit 104 can be appropriately charged in a timely manner to prevent it from being too low to cope with subsequent emergencies, while also taking into account the dynamic load requirements.

[0048] In some embodiments, the supplementary charging strategy determined by the system control unit 106 may also indicate a supplementary charging time sequence that alternates between one or more supplementary charging waiting periods and one or more supplementary charging periods, such as (supplementary charging waiting period, supplementary charging period) or (supplementary charging period, supplementary charging waiting period, supplementary charging period) or (supplementary charging waiting period, supplementary charging period, supplementary charging waiting period, supplementary charging period), etc. The durations of different supplementary charging waiting periods in the supplementary charging time sequence do not necessarily need to be the same, nor do the durations of different supplementary charging periods necessarily need to be the same. This situation may occur when the system control unit 106 predicts, based on the current time, that a change in the load rate of the external power supply and / or a change in a preset load rate threshold and / or a change in a preset warning power threshold will occur in the near future (e.g., the power consumption period is about to transition from a low-consumption period to a peak-consumption period), and performs time-sharing supplementary charging of the backup power supply unit 104 by the power supply unit 102. Alternatively, in some embodiments, the supplementary charging strategy may include multiple pairs of supplementary charging start times and supplementary charging durations, and the system control unit 106 may be configured to sequentially transmit each of the multiple pairs of supplementary charging start times and supplementary charging durations to the power monitoring unit 108, such that each time the power monitoring unit 108 receives a corresponding pair of the multiple pairs of supplementary charging start times and supplementary charging durations, it controls the power supply unit 102 to start supplementary charging the backup power supply unit 104 for the supplementary charging duration in the corresponding pair at the supplementary charging start time in the corresponding pair. For example, the power monitoring unit 108 can receive (supplementary charging start time t1, supplementary charging duration Δt1) from the system control unit 106, and thus control the power supply unit 102 to start supplementary charging of the backup power supply unit 104 at time t1 for Δt1. After this supplementary charging is completed, the power monitoring unit 108 can report the charging completion information to the system control unit 106. Then, the power monitoring unit 108 continues to wait for a while and receives (supplementary charging start time t2, supplementary charging duration Δt2) from the system control unit 106, and thus controls the power supply unit 102 to start supplementary charging of the backup power supply unit 104 at time t2 for Δt2. After this supplementary charging is completed, the power monitoring unit 108 can again report the charging completion information to the system control unit 106, and so on until all supplementary charging of the backup power supply unit 104 by the power supply unit 102 is completed. In some embodiments, each pair of supplementary charging start times and supplementary charging durations is not determined by the system control unit 106 all at once, but is determined sequentially according to the situation at the time. This allows for more flexible application of supplementary charging strategies.

[0049] In some embodiments, the supplementary charging strategy determined by the system control unit 106 may indicate that the backup power unit 104 is supplemented and charged to a preset percentage of its power deficit (equivalent to the full charge of the backup power unit 104 minus its remaining charge). The preset percentage can be considered as a supplementary charging step size, which can be fixed or variable. The preset percentage can be reasonably set according to specific circumstances, for example, between 1% and 15%, such as 3%, 5%, or 10%. The power monitoring unit 108 may be configured to, in response to receiving the aforementioned supplementary charging strategy from the system control unit 106, control the power supply unit 102 to supplement and charge the backup power unit 104 to the preset percentage of its power deficit, and then continue to monitor the status of the power supply unit 102 and the backup power unit 104. If the power supply unit 102 is able to supply power normally and the remaining charge of the backup power unit 104 is still below a preset supplementary charge threshold, the current supplementary charging information is transmitted to the system control unit 106 for it to re-determine the supplementary charging strategy. Therefore, the system control unit 106 can flexibly and gradually implement the supplementary charging of the backup power unit 104 by the power supply unit 102 according to the real-time situation.

[0050] The process by which the system control unit 106 determines the supplementary charging strategy, as described above, can be fully automatic. In other embodiments, the process can also be semi-automatic or fully manual. For example, in a semi-automatic scenario, the system control unit 106 can display the determined supplementary charging strategy to the operator for review and / or adjustment after determination. In a fully manual scenario, the system control unit 106 can display the collected information to the operator for decision-making regarding the supplementary charging strategy and receive the supplementary charging strategy input by the operator.

[0051] Furthermore, the determination and execution of the supplementary charging strategy described above relies on uninterrupted communication between the power monitoring unit 108 and the system control unit 106. However, communication between the power monitoring unit 108 and the system control unit 106 may sometimes be unstable or even fail. Therefore, the backup power management system 100 of this disclosure may also be equipped with a mechanism to address communication failures between the power monitoring unit 108 and the system control unit 106. In some embodiments, the power monitoring unit 108 may also be configured to: if supplementary charging information cannot be transmitted to the system control unit 106 (e.g., whether transmission was successful can be determined based on a communication protocol or confirmation receipt), perform a delay; and when the delay reaches a preset delay duration, control the power supply unit 102 to supplement the backup power supply unit 104 according to local control logic. In some embodiments, the power monitoring unit 108 can also be configured to: perform a self-circulating wait after transmitting supplementary charging information to the system control unit 106; when a supplementary charging strategy is received from the system control unit 106 before the self-circulating wait reaches a preset self-circulating wait time, control the power supply unit 102 to supplement the backup power supply unit 104 according to the supplementary charging strategy; and when the self-circulating wait reaches the preset self-circulating wait time but no supplementary charging strategy is received from the system control unit 106, control the power supply unit 102 to supplement the backup power supply unit 104 according to local control logic. This avoids prolonged deep power depletion of the backup power supply unit 104, thereby affecting the power supply safety of the electrical equipment. The local control logic of the power monitoring unit 108 can, for example, determine whether to supplement the backup power supply unit 104 based on information such as the remaining power of the backup power supply unit 104. The local control logic of the power monitoring unit 108 can be simpler than the control logic of the system control unit 106, thereby simplifying the structure of the power monitoring unit 108 and reducing its power consumption. Of course, the local control logic of the power monitoring unit 108 can also be configured to perform the same process as the system control unit 106 determining the supplementary charging strategy described above. The preset delay waiting time and the preset self-loop waiting time can each be reasonably set according to specific circumstances, for example, they can be a few minutes, tens of minutes, or several hours.

[0052] The following is combined Figure 2Describes an illustrative backup power management process 200 for the backup power management system 100. As shown in S201, the power monitoring unit 108 monitors the status of the power supply unit 102 and the backup power supply unit 104 to determine whether the power supply unit 102 can supply power normally (as shown in S202) and whether the remaining power of the backup power supply unit 104 is lower than a preset replenishment power threshold (as shown in S203). When the power monitoring unit 108 determines that the power supply unit 102 can supply power normally (S202: Yes) and the remaining power of the backup power supply unit 104 is lower than the preset replenishment power threshold (S203: Yes), the power monitoring unit 108 transmits replenishment charging information to the system control unit 106 (as shown in S204) so ​​that the system control unit can determine the replenishment charging strategy of the power supply unit 102 for the backup power supply unit 104. After successfully transmitting the replenishment charging information to the system control unit 106 (S205: Yes), the power monitoring unit 108 performs a self-looping wait, as shown in S206. When the power monitoring unit 108 receives a supplementary charging strategy from the system control unit 106 before the self-loop waiting period reaches a preset self-loop waiting time (entering a loop of "S207: No" and "S208: No" until "S208: Yes" exits the loop), the power monitoring unit 108 controls the power supply unit 102 to supplement the backup power supply unit 104 according to the supplementary charging strategy, as shown in S209. When the self-loop waiting period reaches a preset self-loop waiting time but the power monitoring unit 108 does not receive a supplementary charging strategy from the system control unit 106 (entering a loop of "S207: No" and "S208: No" until "S207: Yes" exits the loop), the power monitoring unit 108 controls the power supply unit 102 to supplement the backup power supply unit 104 according to the local control logic, as shown in S210. When the power monitoring unit 108 is unable to transmit supplementary charging information to the system control unit 106 (S205: No), the power monitoring unit 108 performs a delay, as shown in S211. When the delay reaches the preset delay duration (S212: Yes), the power monitoring unit 108 controls the power supply unit 102 to supplement the backup power supply unit 104 according to the local control logic, as shown in S213. After the power supply unit 102 completes the supplementary charging of the backup power supply unit 104 in S209, S210, and S213, the backup power management process 200 returns to S201, and the power monitoring unit 108 continues to monitor the status of the power supply unit 102 and the backup power supply unit 104.

[0053] like Figure 2As shown, the backup power management process 200 of the backup power management system 100 has one normal backup power management path "S201-S202-S203-S204-S205-S206-S207-S208-S209" and two emergency backup power management paths "S201-S202-S203-S204-S205-S206-S207-S208-S210" and "S201-S202-S203-S204-S205-S211-S212-S213". The normal backup power management path can be used when the power monitoring unit 108 and the system control unit 106 are communicating normally, and the emergency backup power management path can be used when the power monitoring unit 108 and the system control unit 106 are in communication failure, thereby more effectively ensuring the timely maintenance of the backup power unit 104 and the power supply safety of the electrical equipment.

[0054] This disclosure also provides a backup power management method in another aspect. Such a backup power management method can be implemented, for example, by the aforementioned power monitoring unit 108, or by other suitable monitoring devices. Figure 3 As shown, the backup power management method 300 includes: in step S302, monitoring the status of the power supply unit and the backup power supply unit for the electrical equipment, so as to transmit supplementary charging information to determine the supplementary charging strategy of the power supply unit for the backup power supply unit when the power supply unit can supply power normally and the remaining power of the backup power supply unit is lower than a preset supplementary power threshold; in step S304, when the load rate of the external power supply does not exceed the preset load rate threshold, controlling the power supply unit to directly start supplementary charging of the backup power supply unit in response to receiving the first supplementary charging strategy; and in step S306, when the load rate of the external power supply exceeds the preset load rate threshold, controlling the power supply unit to start supplementary charging of the backup power supply unit after a supplementary charging waiting period in response to receiving the second supplementary charging strategy.

[0055] In some embodiments, the backup power management method 300 further includes identifying the power consumption scenario of the external power source and determining a preset load rate threshold based on the identified power consumption scenario. In some embodiments, the preset load rate threshold is determined as an adjustment amount corresponding to the identified power consumption scenario based on a default load rate threshold. In some embodiments, the power consumption scenario is based on one or more of the following: electricity price, electricity consumption period, and demand of electrical equipment.

[0056] In some embodiments, the backup power management method 300 further includes, in response to receiving the second supplementary charging strategy, after the supplementary charging waiting period has elapsed: controlling the power supply unit to directly begin supplementary charging of the backup power unit; or transmitting current supplementary charging information for re-determining the supplementary charging strategy.

[0057] In some embodiments, the backup power management method 300 further includes: when the remaining power of the backup power unit is lower than a preset warning power threshold, in response to receiving the first supplementary charging strategy, controlling the power supply unit to directly start supplementary charging of the backup power unit, regardless of whether the load rate of the external power supply exceeds a preset load rate threshold, wherein the preset warning power threshold is set such that the backup power unit can maintain the operation of the electrical equipment for a preset reference time determined based on the historical failure time of the power supply unit. In some embodiments, the backup power management method 300 further includes: when the remaining power of the backup power unit is lower than the preset warning power threshold and the load rate of the external power supply exceeds the preset load rate threshold, in response to receiving the third supplementary charging strategy, controlling the power supply unit to supplementary charge the backup power unit until the remaining power of the backup power unit is not lower than the preset warning power threshold, and then continuing to monitor the status of the power supply unit and the backup power unit, so that when the power supply unit can supply power normally and the remaining power of the backup power unit is still lower than the preset supplementary power threshold, the current supplementary charging information is transmitted for re-determining the supplementary charging strategy.

[0058] In some embodiments, the supplementary charging strategy indicates that the backup power unit is supplemented and charged to a preset percentage of the power deficit of the backup power unit, and the backup power management method 300 further includes: in response to receiving the supplementary charging strategy, controlling the power supply unit to supplement and charge the backup power unit to a preset percentage of the power deficit of the backup power unit, and then continuing to monitor the status of the power supply unit and the backup power unit, so as to transmit the current supplementary charging information for re-determining the supplementary charging strategy when the power supply unit is able to supply power normally and the remaining power of the backup power unit is still lower than a preset supplementary power threshold.

[0059] In some embodiments, the supplementary charging strategy includes multiple pairs of supplementary charging start times and supplementary charging durations, and the backup power management method 300 further includes: sequentially receiving each pair of the multiple pairs of supplementary charging start times and supplementary charging durations, such that each time in response to receiving a corresponding pair of the multiple pairs of supplementary charging start times and supplementary charging durations, the power supply unit is controlled to start supplementary charging of the backup power supply unit for the supplementary charging duration of the corresponding pair at the supplementary charging start time in the corresponding pair.

[0060] In some embodiments, the backup power management method 300 further includes: performing a self-circulating wait after transmitting the supplementary charging information; when the supplementary charging strategy is received before the self-circulating wait reaches a preset self-circulating wait time, controlling the power supply unit to supplement the backup power supply unit according to the supplementary charging strategy; and when the self-circulating wait reaches a preset self-circulating wait time but the supplementary charging strategy is not received, controlling the power supply unit to supplement the backup power supply unit according to local control logic.

[0061] In some embodiments, the backup power management method 300 further includes: if supplementary charging information cannot be transmitted, a delay is performed; and when the delay reaches a preset delay duration, the power supply unit is controlled to supplement the backup power supply unit according to the local control logic.

[0062] The embodiments of the backup power management method 300 can be similar to the embodiments of the backup power management system 100 described above, and will not be elaborated further here.

[0063] The terms “left,” “right,” “front,” “back,” “top,” “bottom,” “upper,” “lower,” “high,” “lower,” etc., used in the specification and claims, if present, are for descriptive purposes and not necessarily for describing unchanging relative positions. It should be understood that such terms are interchangeable where appropriate, enabling the embodiments of this disclosure described herein to operate, for example, in orientations different from those shown or otherwise described herein. For example, when the device in the drawings is reversed, a feature previously described as “above” other features may now be described as “below” other features. The device may also be oriented in other ways (rotated 90 degrees or in other orientations), in which case the relative spatial relationships will be interpreted accordingly.

[0064] In the specification and claims, when an element is described as being "on top of," "attached" to, "connected" to, "coupled" to, "coupled to," or "in contact with" another element, the element may be directly located on top of, directly attached to, directly connected to, directly coupled to, directly coupled to, or directly in contact with the other element, or one or more intermediate elements may be present. Conversely, when an element is described as being "directly" located on top of, directly attached to, directly connected to, directly coupled to, directly coupled to, or directly in contact with another element, no intermediate elements are present. In the specification and claims, when a feature is arranged "adjacent" to another feature, it may mean that a feature has a portion overlapping with the adjacent feature or a portion located above or below the adjacent feature.

[0065] As used herein, the term "exemplary" means "serving as an example, instance, or illustration," and not as a "model" to be precisely copied. Any implementation described herein by example is not necessarily to be construed as preferred or advantageous over other implementations. Furthermore, this disclosure is not limited to any theory expressed or implied as given in the art, background, summary of the invention, or detailed description.

[0066] As used herein, the term "substantially" means any minor variation resulting from design or manufacturing defects, device or component tolerances, environmental influences, and / or other factors. The term "substantially" also allows for differences from the perfect or ideal situation due to parasitic effects, noise, and other practical considerations that may exist in the actual implementation.

[0067] Additionally, terms such as “first,” “second,” etc., may be used in this document for reference purposes only and are not intended to be limiting. For example, unless the context clearly indicates otherwise, the words “first,” “second,” and other such numerical terms relating to structures or elements do not imply order or sequence.

[0068] It should also be understood that when the term “including / contains” is used herein, it indicates the presence of the indicated feature, whole, step, operation, unit and / or component, but does not preclude the presence or addition of one or more other features, wholes, steps, operations, units and / or components and / or combinations thereof.

[0069] In this disclosure, the term “provide” is used broadly to cover all ways of obtaining an object, and therefore “provide an object” includes, but is not limited to, “purchasing,” “preparing / manufacturing,” “arranging / setting up,” “installing / assembling,” and / or “ordering” an object.

[0070] As used herein, the term “and / or” includes any and all combinations of one or more of the listed items in association. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. As used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise.

[0071] Those skilled in the art will recognize that the boundaries between the above operations are merely illustrative. Multiple operations may be combined into a single operation, a single operation may be distributed among additional operations, and operations may be performed with at least partial overlap in time. Moreover, alternative embodiments may include multiple instances of a particular operation, and the order of operations may be changed in various other embodiments. However, other modifications, variations, and substitutions are equally possible. Aspects and elements of all the embodiments disclosed above may be combined in any way and / or in combination with aspects or elements of other embodiments to provide multiple additional embodiments. Therefore, this specification and the accompanying drawings should be considered illustrative rather than restrictive.

[0072] While specific embodiments of this disclosure have been described in detail by way of example, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. The various embodiments disclosed herein can be combined in any way without departing from the spirit and scope of this disclosure. Those skilled in the art should also understand that various modifications can be made to the embodiments without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A backup power management system, comprising: The power supply unit is configured to supply power to the electrical equipment using an external power source. The backup power unit is configured to supply power to the electrical equipment when the power supply unit is unable to supply power to the electrical equipment. The system control unit is configured to determine the supplementary charging strategy of the power supply unit to the backup power supply unit; as well as The power monitoring unit is configured as follows: Monitor the status of the power supply unit and the backup power supply unit so that when the power supply unit is able to supply power normally and the remaining power of the backup power supply unit is lower than the preset supplementary power threshold, the supplementary charging information is transmitted to the system control unit so that it can determine the supplementary charging strategy. as well as The system receives the supplementary charging strategy from the system control unit and controls the power supply unit to supplement the backup power supply unit according to the supplementary charging strategy. The supplementary charging information includes the load rate of the external power source connected to the power supply unit and the remaining power of the backup power supply unit, as well as... The system control unit is configured to determine whether the load rate of the external power supply exceeds a preset load rate threshold, and: When the load rate of the external power supply does not exceed the preset load rate threshold, a first supplementary charging strategy is determined and transmitted to the power monitoring unit. The first supplementary charging strategy indicates that supplementary charging should start directly. When the load rate of the external power supply exceeds a preset load rate threshold, a second supplementary charging strategy is determined and transmitted to the power monitoring unit. The second supplementary charging strategy indicates that supplementary charging will only begin after a supplementary charging waiting period has elapsed. The system control unit is configured to identify the power consumption scenario of the external power source and determine the preset load rate threshold based on the identified power consumption scenario.

2. The backup power management system according to claim 1, wherein, The preset load rate threshold is determined as an adjustment amount corresponding to the identified electricity consumption scenario based on the default load rate threshold, wherein the electricity consumption scenario is based on one or more of the following: electricity price, electricity consumption period, and electricity equipment demand.

3. The backup power management system according to claim 1, wherein, The power monitoring unit is configured to, in response to receiving the second supplementary charging strategy, after the supplementary charging waiting period has elapsed: The control power supply unit directly begins to supplement and charge the backup power supply unit; or The current supplemental charging information is transmitted to the system control unit so that it can re-determine the supplemental charging strategy.

4. The backup power management system according to claim 1, wherein, The system control unit is also configured to determine whether the remaining power of the backup power unit is lower than a preset warning power threshold, and when the remaining power of the backup power unit is lower than the preset warning power threshold, to determine and transmit the first supplementary charging strategy to the power monitoring unit regardless of whether the load rate of the external power supply exceeds a preset load rate threshold. The preset warning power threshold is set to enable the backup power unit to maintain the operation of the electrical equipment for a preset reference time determined based on the historical failure time of the power supply unit.

5. The backup power management system according to claim 4, wherein, The system control unit is configured to determine and transmit a third supplementary charging strategy to the power monitoring unit when the remaining power of the backup power unit is lower than a preset warning power threshold and the load rate of the external power supply exceeds a preset load rate threshold. The third supplementary charging strategy indicates that supplementary charging should start directly until the remaining power of the backup power unit is not lower than the preset warning power threshold. The power monitoring unit is configured to control the power supply unit to supplement the backup power supply unit in response to receiving the third supplementary charging strategy until the remaining power of the backup power supply unit is not lower than a preset warning power threshold. Then, it continues to monitor the status of the power supply unit and the backup power supply unit so that when the power supply unit can supply power normally and the remaining power of the backup power supply unit is still lower than the preset supplementary power threshold, the current supplementary charging information is transmitted to the system control unit so that it can re-determine the supplementary charging strategy.

6. The backup power management system according to claim 1, wherein, The supplementary charging strategy indicates that the backup power unit is supplemented and charged to a preset percentage of the backup power unit's power deficit. The power monitoring unit is configured to, in response to receiving the supplementary charging strategy, control the power supply unit to supplement and charge the backup power unit to the preset percentage of the backup power unit's power deficit, and then continue to monitor the status of the power supply unit and the backup power unit. When the power supply unit is able to supply power normally and the remaining power of the backup power unit is still lower than a preset supplementary power threshold, the current supplementary charging information is transmitted to the system control unit so that it can re-determine the supplementary charging strategy.

7. The backup power management system according to claim 1, wherein, The supplementary charging strategy includes multiple pairs of supplementary charging start times and supplementary charging durations, and the system control unit is configured to sequentially transmit each pair of the multiple pairs of supplementary charging start times and supplementary charging durations to the power monitoring unit, such that each time the power monitoring unit receives a corresponding pair of the multiple pairs of supplementary charging start times and supplementary charging durations, it controls the power supply unit to start supplementary charging of the backup power supply unit for the supplementary charging duration of the corresponding pair at the supplementary charging start time of the corresponding pair.

8. The backup power management system according to claim 1, wherein, The power monitoring unit is also configured as follows: After transmitting the supplementary charging information to the system control unit, it performs a self-looping wait; When the supplementary charging strategy is received from the system control unit before the self-circulation waiting time reaches a preset self-circulation waiting time, the power supply unit is controlled to supplement the backup power supply unit according to the supplementary charging strategy; and When the self-circulation wait reaches the preset self-circulation wait time but the supplementary charging strategy is not received from the system control unit, the power supply unit is controlled to supplement the backup power supply unit according to the local control logic.

9. The backup power management system according to claim 1, wherein, The power monitoring unit is also configured as follows: If the supplemental charging information cannot be transmitted to the system control unit, a delay will occur; and When the delay period reaches the preset delay duration, the power supply unit is controlled by the local control logic to supplement the backup power supply unit with charging.

10. A backup power management method, comprising: The status of the power supply unit and the backup power supply unit for the electrical equipment is monitored so that when the power supply unit can supply power normally and the remaining power of the backup power supply unit is lower than a preset supplementary power threshold, supplementary charging information is transmitted to determine the supplementary charging strategy of the power supply unit to the backup power supply unit. The supplementary charging information includes the load rate of the external power supply connected to the power supply unit and the remaining power of the backup power supply unit. When the load rate of the external power supply does not exceed the preset load rate threshold, in response to receiving the first supplementary charging strategy, the power supply unit is controlled to directly begin supplementary charging of the backup power supply unit; and When the load rate of the external power supply exceeds the preset load rate threshold, in response to receiving the second supplementary charging strategy, the power supply unit is controlled to start supplementary charging of the backup power supply unit after the supplementary charging waiting period. The backup power management method further includes: identifying the power consumption scenario of the external power source and determining the preset load rate threshold based on the identified power consumption scenario.

11. The backup power management method according to claim 10, wherein, The preset load rate threshold is determined as an adjustment amount corresponding to the identified electricity consumption scenario based on the default load rate threshold, wherein the electricity consumption scenario is based on one or more of the following: electricity price, electricity consumption period, and electricity equipment demand.

12. The backup power management method of claim 10, further comprising, in response to receiving the second supplementary charging strategy, after the supplementary charging waiting period has elapsed: The control power supply unit directly begins to supplement and charge the backup power supply unit; or Transmit the current supplemental charging information for re-determining the supplemental charging strategy.

13. The backup power management method according to claim 10 further includes: When the remaining power of the backup power unit is lower than the preset warning power threshold, in response to receiving the first supplementary charging strategy, the power supply unit is controlled to directly start supplementary charging of the backup power unit, regardless of whether the load rate of the external power supply exceeds the preset load rate threshold. The preset warning power threshold is set to enable the backup power unit to maintain the operation of the electrical equipment for a preset reference time determined based on the historical fault time of the power supply unit.

14. The backup power management method according to claim 13 further includes: When the remaining power of the backup power unit is lower than the preset warning power threshold and the load rate of the external power supply exceeds the preset load rate threshold, in response to receiving the third supplementary charging strategy, the power supply unit is controlled to supplement the backup power unit until the remaining power of the backup power unit is not lower than the preset warning power threshold. Then, the status of the power supply unit and the backup power unit is monitored. When the power supply unit can supply power normally and the remaining power of the backup power unit is still lower than the preset supplementary power threshold, the current supplementary charging information is transmitted to redetermine the supplementary charging strategy.

15. The backup power management method according to claim 10, wherein, The supplementary charging strategy indicates that the backup power unit is supplemented with a preset percentage of its power loss, and the backup power management method further includes: In response to receiving the supplementary charging strategy, the power supply unit is controlled to supplement the backup power supply unit to a preset percentage of the backup power supply unit's power loss. Then, the status of the power supply unit and the backup power supply unit is continuously monitored. When the power supply unit is able to supply power normally and the remaining power of the backup power supply unit is still lower than the preset supplementary power threshold, the current supplementary charging information is transmitted to redetermine the supplementary charging strategy.

16. The backup power management method according to claim 10, wherein, The supplementary charging strategy includes multiple pairs of supplementary charging start times and supplementary charging durations, and the backup power management method further includes: Each of the plurality of pairs of supplementary charging start times and supplementary charging durations is received sequentially, such that each time in response to receiving a corresponding pair of the plurality of pairs of supplementary charging start times and supplementary charging durations, the power supply unit is controlled to start supplementary charging of the backup power supply unit for the duration of the corresponding pair of supplementary charging start times.

17. The backup power management method according to claim 10, further comprising: After transmitting the supplementary charging information, a self-looping wait is performed; When the supplementary charging strategy is received before the self-circulation waiting period reaches a preset self-circulation waiting time, the power supply unit is controlled to supplement the backup power supply unit according to the supplementary charging strategy; and When the self-loop waiting time reaches the preset self-loop waiting time but the supplementary charging strategy is not received, the power supply unit is controlled to supplement the backup power supply unit according to the local control logic.

18. The backup power management method according to claim 10, further comprising: If the recharging information cannot be transmitted, a delay will be implemented; and When the delay period reaches the preset delay duration, the power supply unit is controlled by the local control logic to supplement the backup power supply unit with charging.

Images