UPS parallel management method, device and system and computer storage medium

Abstract

The invention relates to the technical field of power management, in particular to a UPS parallel management method, device and system and a computer storage medium. When it is detected that a power grid power source is in an abnormal state, a UPS cluster formed by connecting multiple UPSs in parallel is started so that the UPS cluster can supply power to a target object, performance parameters of each UPS in the UPS cluster and the number of the UPSs in the UPS cluster are determined, and after the target load size of the target object is predicted based on the historical load size of the target object, the power grid power source is determined to be in the abnormal state. And according to the performance parameter of each UPS and the number of the UPSs, the target load is distributed to each UPS in the UPS cluster, so that each UPS in the UPS cluster supplies power to the target object, and the power supply efficiency of the UPSs is improved.

Description

Technical Field

[0001] The present application relates to the technical field of power management, and in particular to a UPS parallel management method, device, system and computer storage medium. Background Art

[0002] At present, uninterruptible power supply (UPS) is a technology that can provide stable and reliable AC power to the load when the mains power is interrupted or abnormal. UPS equipment is usually composed of rectifiers, inverters, static switches, battery packs and other parts, which can achieve continuous power supply to the load and avoid equipment damage and data loss caused by abnormal mains power.

[0003] According to the different power supply structures and working principles, UPS can be divided into many types, mainly including backup UPS, online interactive UPS and online double conversion UPS, etc. Among them, backup UPS is suitable for occasions with low requirements on power quality and light load; online interactive UPS is suitable for occasions with certain requirements on power quality and heavy load; online double conversion UPS has higher power quality and stronger load capacity, and is suitable for occasions with extremely high requirements on power stability.

[0004] UPS is a device that can provide stable power when the power grid fails. However, the performance and capacity of a single UPS are often limited, making it difficult to meet large-scale, high-demand power security needs. Therefore, multiple UPS are connected in parallel to improve the reliability and capacity of the power system. However, when multiple UPS need to be connected in parallel to ensure a stable power supply, the power supply efficiency will decrease due to the different UPS performance parameters. Summary of the invention

[0005] In view of the above, the present application provides a UPS parallel management method, device, system and computer storage medium, which improve the power supply efficiency of the UPS parallel system through the compatibility and collaborative operation of multiple UPS.

[0006] A first aspect of the present application provides a UPS parallel management method, which is applied to a UPS parallel management system, wherein the UPS parallel management system includes a UPS parallel system, wherein the UPS parallel system includes a UPS cluster composed of multiple UPSs connected in parallel, and the method includes: When it is detected that the grid power supply is in an abnormal state, starting the UPS cluster so that the UPS cluster supplies power to the target object; Determining the performance parameters of each UPS in the UPS cluster and the number of UPS in the UPS cluster; predicting a target load size of the target object based on a historical load size of the target object; The target load size is distributed to each UPS in the UPS cluster according to the performance parameter and the number of UPS, so that each UPS in the UPS cluster supplies electricity to the target object.

[0007] In an optional implementation, allocating the target load size to each UPS according to the performance parameter and the number of UPSs includes: Selecting N UPS as working UPS and X UPS as standby UPS from the UPS cluster according to the number of UPS, wherein the number of UPS=N+X, and N and X are both integers greater than or equal to 1; Determine the load distribution ratio corresponding to each UPS in the working UPS according to the performance parameters; The target load size is distributed to each UPS in the working UPS according to the load distribution ratio.

[0008] In an optional implementation, the performance parameter includes a rated power, and determining the load distribution ratio corresponding to each UPS in the working UPS according to the performance parameter includes: Calculating the total rated power of the working UPS according to the rated power of each UPS in the working UPS; The load distribution ratio is determined according to the rated power and the total rated power.

[0009] In an optional embodiment, the method further comprises: When it is detected that any one of the working UPS is in an abnormal state, obtaining a first target capacity of a first target UPS, wherein the first target UPS is a set of UPSs in the working UPS except the UPS in the abnormal state; Determining whether the first target capacity satisfies the normal operation of the target load size; When the first target capacity does not meet the normal operation of the target load size, the standby UPS is started according to the target capacity and the target load size so that the second target capacities of the working UPS and the standby UPS meet the normal operation of the target load size.

[0010] In an optional embodiment, the method further comprises: When any one of the standby UPS is in an abnormal state, determining a priority order corresponding to each target load in the target load size; The first target UPS and the second target UPS are controlled to supply power for the target load size according to the priority order, wherein the second target UPS is a set of UPSs in the backup UPS except for the UPS in an abnormal state.

[0011] In an optional embodiment, the method further comprises: When the first target capacity satisfies the normal operation of the target load size, calculating a load difference between the first target capacity and the target load size; When it is determined that the load difference is less than a preset difference threshold, obtaining the running time corresponding to each UPS in the working UPS; Determine a third target UPS in the working UPS according to the load distribution ratio and the running time, wherein the third target UPS is a set of UPS in the working UPS that can be switched from a running state to a sleeping state; The third target UPS is controlled to switch from the running state to the sleeping state.

[0012] In an optional embodiment, the method further comprises: Acquire the operating load corresponding to each UPS in the UPS cluster according to a first preset time period; When it is determined that the operating load is not within the preset load threshold interval within the second preset time period, it is determined that the operating load is greater than the first operating UPS corresponding to the upper limit value in the preset load threshold interval, and the operating load is less than the second operating UPS corresponding to the lower limit value in the preset load threshold interval; The first operating UPS is controlled to switch from an operating state to a sleeping state, and the operating load corresponding to the first operating UPS is distributed to the second operating UPS, so that the second operating UPS supplies power to the operating load corresponding to the first operating UPS.

[0013] A second aspect of the present application provides a UPS parallel management device, which is arranged in a UPS parallel management system, wherein the UPS parallel management system includes a UPS parallel system, wherein the UPS parallel system includes a UPS cluster composed of multiple UPSs connected in parallel, and the device includes: A detection module, configured to start the UPS cluster when detecting that the grid power supply is in an abnormal state, so that the UPS cluster supplies power to the target object; A determination module, used to determine the performance parameters of each UPS in the UPS cluster and the number of UPS in the UPS cluster; A prediction module, configured to predict a target load size of the target object based on a historical load size of the target object; A distribution module is used to distribute the target load data load size to each UPS in the UPS cluster according to the performance parameter and the number of UPS, so that each UPS in the UPS cluster supplies electricity to the target object.

[0014] A third aspect of the present application provides a UPS parallel management system, the UPS parallel management system includes a UPS parallel system, the UPS parallel system includes a UPS cluster consisting of multiple UPSs connected in parallel and a UPS parallel management and control device, the UPS parallel management and control device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the UPS parallel management method when executing the computer program.

[0015] A fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the above-mentioned UPS parallel management method are implemented.

[0016] In summary, the UPS parallel management method, device, system and computer storage medium provided by the present application, when the power grid power is abnormal, start the UPS cluster to provide power to the target object, so that the UPS cluster can respond quickly and provide a continuous and stable power supply, thereby ensuring the reliability and continuity of the power supply system. Then, the performance parameters of each UPS in the UPS cluster are determined, and the number of UPS clusters is understood, so that the performance characteristics of each UPS are taken into account when distributing the load, thereby effectively managing the power distribution, preventing some UPS from being overloaded, and other UPS from being idle, thereby improving the power supply efficiency of the entire power supply system. Further use the historical load data to predict the target load size, and distribute the target load size to each UPS in the UPS cluster according to the performance parameters and the number of UPS, by reasonably distributing the load, ensure that each UPS operates within its rated range, and maximize the power supply efficiency and stability of the entire power supply system. In general, the UPS parallel management method disclosed in the embodiment of the present application improves the power supply efficiency of the UPS by optimizing the load distribution of each UPS in the UPS cluster, and ensures that the target object can continue to obtain a stable power supply when the power grid power is abnormal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a UPS parallel management system shown in an embodiment of the present application; Figure 2 is a flow chart of a UPS parallel management method shown in an embodiment of the present application; Figure 3It is a functional module diagram of a UPS parallel management device shown in an embodiment of the present application; Figure 4 It is a structural schematic diagram of a UPS parallel management and control device shown in an embodiment of the present application.

[0018] Description of Reference Numerals 1. UPS parallel management system; 10. UPS parallel system; 12. UPS parallel management control device; 121. memory; 122. processor; 123. communication bus. DETAILED DESCRIPTION

[0019] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to any or all possible combinations comprising one or more of the listed items.

[0020] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0021] Reference Figure 1 , which is a structural diagram of a UPS parallel management system shown in an embodiment of the present application.

[0022] The UPS parallel management system 1 comprises a UPS parallel system 10 and a UPS parallel management control device 12. The UPS parallel system 10 comprises a UPS cluster consisting of a plurality of UPSs connected in parallel, and is used to supply power to a target object when it is detected that the grid power supply is in an abnormal state.

[0023] In some embodiments, the UPS parallel system 10 may include a working UPS and a standby UPS, wherein the working UPS is used to supply power to the target object when the grid power is detected to be in an abnormal state, and the standby UPS is used to supply power to the target object when the working UPS is detected to be in an abnormal state.

[0024] The UPS parallel management control device 12 is used to implement a UPS parallel management method.

[0025] Reference Figure 2As shown, it is a flow chart of a UPS parallel management method shown in an embodiment of the present application, and the UPS parallel management method includes the following steps.

[0026] S21, when it is detected that the grid power supply is in an abnormal state, starting the UPS cluster so that the UPS cluster supplies power to the target object.

[0027] Among them, UPS cluster refers to a power supply system composed of multiple UPS in parallel. The grid power supply refers to the mains power supply, which is the main power supply for residents in the city. The target object refers to the equipment or system that needs power supply from the grid power supply or UPS cluster. The target objects may include, but are not limited to: data centers, medical equipment, industrial production lines, etc.

[0028] In general, the target object is supplied with electricity by the mains power. When it is detected that the mains power is in an abnormal state, for example, the mains power is interrupted or unstable, the UPS parallel management device can start the UPS cluster so that the UPS cluster supplies electricity to the target object.

[0029] In some embodiments, the UPS parallel management device can monitor the voltage, current, frequency and other operating parameters of the power grid in real time through smart meters, sensors and other devices, and generate corresponding waveforms to identify whether the power grid has fluctuations and unstable behavior. Secondly, the UPS parallel management device can also monitor the power status of the target object in real time. When the power status of the target object is in the off state, it can be determined that the target object is in a power-off state, that is, the power grid is interrupted. In other embodiments, the UPS parallel management device can collect and organize the historical operating parameters of the power grid, and establish a machine learning model, such as a random forest, a support vector machine (SVM) or a neural network, and obtain an abnormal recognition model based on the historical operating parameters. The operating parameters of the power grid are detected in real time and input into the abnormal recognition model for prediction to output the result of whether the power grid is in an abnormal state.

[0030] Through the above-mentioned optional implementation mode, by real-time monitoring of the abnormal state of the grid power supply, a rapid response to the abnormality of the grid power supply and a stable power supply to the target object can be achieved, thereby improving the stability and reliability of the target object, ensuring its normal operation, and thus improving the power supply efficiency.

[0031] S22, determining the performance parameters of each UPS in the UPS cluster and the number of UPS in the UPS cluster.

[0032] When the UPS cluster is turned on to supply power to the target object, the performance parameters of each UPS in the UPS cluster and the number of UPS in the UPS cluster need to be obtained to ensure that each UPS in the UPS cluster that supplies power to the target object can achieve performance compatibility to improve the power supply efficiency of the UPS. The performance parameters may include rated voltage, rated power, output voltage range, frequency stability, conversion efficiency, remaining power, health status, etc.

[0033] S23: predicting a target load size of the target object based on a historical load size of the target object.

[0034] Based on the historical load data of the target object, a prediction algorithm (such as time series analysis, machine learning, etc.) is used to predict the load size of the target object in the future. When the historical load size of the target object in the previous preset time period is obtained, the target load size of the target object in the next preset time period can be predicted based on the historical load size. In an embodiment of the present application, the UPS parallel management device can obtain the historical load size corresponding to each target object in the target object set to obtain a historical load size set, wherein each historical load size in the historical load size set includes standard information. An initial prediction model is constructed based on a long short-term memory network (LSTM), and the initial prediction model is trained using training samples in the preprocessed historical load size set, and the initial prediction model that meets the preset training termination condition is determined as the target prediction model. Further, the historical load size of the target object is input into the target prediction model, and the output result of the target prediction model is determined as the target load size of the target object.

[0035] S24, allocating the target load size to each UPS in the UPS cluster according to the performance parameter and the number of UPSs, so that each UPS in the UPS cluster supplies power to the target object.

[0036] Based on the performance parameters of each UPS and the number of UPS, a load balancing algorithm is used to calculate the load that each UPS should bear. Then, the control system sends instructions to each UPS to adjust its output power to match the assigned load size. Among them, high-performance UPS can bear more load, while low-performance UPS can serve as backup or bear lighter load when needed.

[0037] In an optional implementation, allocating the target load size to each UPS according to the performance parameter and the number of UPSs includes: Selecting N UPS as working UPS and X UPS as standby UPS from the UPS cluster according to the number of UPS, wherein the number of UPS=N+X, and N and X are both integers greater than or equal to 1; Determine the load distribution ratio corresponding to each UPS in the working UPS according to the performance parameters; The target load size is distributed to each UPS in the working UPS according to the load distribution ratio.

[0038] If the number of UPS is small, each UPS may need to bear more load; if the number of UPS is large, each UPS may need to bear less load. In the embodiment of the present application, the number of UPS in parallel in the UPS cluster is first determined, and the redundancy capacity of the UPS is determined according to the number of UPS, that is, N UPS can be selected from the UPS cluster as working UPS, and the remaining X UPS can be used as additional redundant UPS, that is, standby UPS, to ensure that when the UPS parallel management device distributes the load, even if one or more working UPS fails, the standby UPS can still bear the load that the failed working UPS cannot bear or all the loads.

[0039] The performance parameter includes rated power, and determining the load distribution ratio corresponding to each UPS in the working UPS according to the performance parameter includes: Calculating the total rated power of the working UPS according to the rated power of each UPS in the working UPS; The load distribution ratio is determined according to the rated power and the total rated power.

[0040] In some embodiments, the UPS parallel management device needs to determine the rated power corresponding to each UPS in the working UPS, so the total rated power of the working UPS can be determined by summing the rated power of each UPS in the working UPS. Further, the rated power of each UPS in the working UPS is ratioed to the total rated power to obtain the corresponding load distribution ratio, that is, load distribution ratio = rated power / total rated power.

[0041] After determining the target load size of the target object and the load distribution ratio corresponding to each UPS in the working UPS, the UPS parallel management device can distribute the target load size to each UPS in the working UPS according to the load distribution ratio, so that each UPS in the working UPS bears the load that can be borne according to its performance.

[0042] For example, it is assumed that there are three working UPSs, whose rated powers are UPS1 (2 kVA), UPS2 (3 kVA) and UPS3 (2.5 kVA), and the target load is 7.5 kVA. The total rated power = 2kVA + 3kVA + 2.5kVA = 7.5kVA, and the corresponding load distribution ratios of UPS1, UPS2 and UPS3 are: U1 = (2kVA / 7.5kVA) × 100% ≈ 26.67%, U2 = (3kVA / 7.5kVA) × 100% ≈ 40%, U3 = (2.5kVA / 7.5kVA) × 100% ≈ 33.33%, and the load sizes distributed to UPS1, UPS2 and UPS3 by the UPS parallel management device according to the load distribution ratio are: UL1 = 26.67% × 7.5kVA ≈ 2kVA, UL2 = 40% × 7.5kVA = 3kVA, UL3 = 33.33% × 7.5kVA ≈ 2.5kVA.

[0043] Through the above optional implementation method, the load is dynamically distributed according to the performance parameters and the number of UPS, so as to realize the effective management and load balancing of the UPS cluster, ensure that the working UPS can fully utilize its performance when bearing the load, and realize redundancy and fault transfer through the standby UPS when necessary, thereby improving the power supply efficiency of the UPS in the UPS cluster, and the stability and reliability of the UPS parallel management system, reducing the risk of UPS overload or failure, thereby ensuring the continuous operation of the power supply system and the safe operation of the equipment.

[0044] In an optional embodiment, the method further includes: When it is detected that any one of the working UPS is in an abnormal state, obtaining a first target capacity of a first target UPS, wherein the first target UPS is a set of UPSs in the working UPS except the UPS in the abnormal state; Determining whether the first target capacity satisfies the normal operation of the target load size; When the first target capacity does not meet the normal operation of the target load size, the standby UPS is started according to the target capacity and the target load size so that the second target capacities of the working UPS and the standby UPS meet the normal operation of the target load size.

[0045] In some embodiments, when using the working UPS in the UPS cluster to supply electricity to the target object, according to the same embodiment as step S21, the UPS parallel management device implements monitoring of the operating status of each UPS in the working UPS to determine whether there is an abnormal UPS in the working UPS. When it is determined that one or more UPS in the working UPS are in an abnormal state, the set of UPSs that are not in an abnormal state in the working UPS is collectively referred to as the first target UPS, and the total capacity corresponding to the first target UPS, that is, the first target capacity, is obtained to determine whether the normal operation of the target load size is met. Among them, the first target capacity refers to the battery capacity of the UPS, that is, the length of time that it can supply power to the load.

[0046] Further, the first target capacity of the first target UPS is compared with the target load size. If the first target capacity is greater than or equal to the target load size, the UPS parallel management device can determine that the first target capacity meets the normal operation of the target load size, and there is no need to start the standby UPS. If the first target capacity is less than the target load size, the UPS parallel management device can start the standby UPS to supplement the power supply. Specifically, the UPS parallel management device can determine the number of standby UPS, that is, the size of X. When X is greater than 2, one or two standby UPS can be selected to start so that the second target capacity of the working UPS and the standby UPS meets the normal operation of the target load size. First, the UPS parallel management device can calculate the difference between the first target UPS and the target load size, and determine how many standby UPS need to be turned on according to the difference. If the difference is within the capacity range of one standby UPS, only one standby UPS needs to be turned on. If the difference is not within the capacity range of one standby UPS, multiple standby UPS need to be turned on.

[0047] After determining the standby UPS that needs to be turned on, the UPS parallel management device can send a startup command to the standby UPS. After receiving the standby command, the standby UPS starts self-inspection and preheating processing. After ensuring that it is in good condition, it starts to supply power to the target object.

[0048] In other embodiments, the UPS parallel management device can also set the start-up conditions of the backup power supply. For example, when the target load size is greater than a preset load threshold, the backup UPS can be started to avoid overloading of the working UPS.

[0049] Through the above optional implementation, by real-time monitoring of the working UPS status, abnormalities can be identified in time to ensure the stability of the power supply system. The backup UPS is used to make up for the insufficient capacity of the working UPS, thereby improving the reliability and stability of the power supply system. By dynamically calculating the number of backup UPSs required to be started, effective utilization of resources and balanced distribution of loads are achieved, thereby improving the performance and power supply efficiency of the entire power supply system.

[0050] In some embodiments, according to the same implementation, the UPS parallel management device monitors the abnormal state of the grid power supply in real time, and once the grid power supply is detected to be in an abnormal state, the switching mechanism of the working UPS is immediately started. For example, the working UPS with large battery capacity, good operating state and short operating time can be started first to supply power to the target object, and when the working UPS cannot bear the target load size, the working UPS is continued to be turned on to ensure that the battery capacity of the working UPS meets the target load size of the target object for normal operation.

[0051] In an optional embodiment, the method further comprises: When any one of the standby UPS is in an abnormal state, determining a priority order corresponding to each target load in the target load size; The first target UPS and the second target UPS are controlled to supply power for the target load size according to the priority order, wherein the second target UPS is a set of UPSs in the backup UPS except for the UPS in an abnormal state.

[0052] In some embodiments, when using the backup UPS to supply power to the target object, the UPS parallel management device will monitor the operating status of each UPS in the backup UPS in real time to determine whether there is a UPS in the backup UPS that is in an abnormal state. When it is determined that any UPS in the backup UPS is in an abnormal state, the UPS parallel management device can obtain the priority order of each target load in the target load size corresponding to the target object, that is, determine the importance or urgency of each load in the target load, and the more important or more urgent the load is, the higher the priority is assigned. For example, the UPS parallel management device can assign priorities according to pre-set business rules (for example, business criticality assessment, urgency classification, and load type classification, etc.). According to the business rules for load type classification, the loads can be divided into production loads (such as production line equipment), office loads (such as computers, printers, etc.) and auxiliary loads (such as lighting, air conditioning, etc.), and the first level of priority is assigned to the production load, the second level of priority is assigned to the office load, and the third level of priority is assigned to the auxiliary load, wherein the first level is greater than the second level and greater than the third level.

[0053] After determining the priority corresponding to each target load and sorting the priorities according to the priorities, the UPS parallel management device uses one of the first target UPS and the second target UPS to supply power to the target load with a higher priority.

[0054] Through the above optional implementation, by real-time monitoring of the standby UPS status, it is possible to respond to abnormalities in a timely manner and quickly and accurately allocate power resources in abnormal situations. Secondly, according to the priority order of the target loads, priority power supply to important loads is achieved, thereby improving the stability and reliability of the power supply system.

[0055] In some embodiments, when X is greater than 2, and only the first backup UPS among the backup UPS supplies power to the target object, when the first backup UPS is in an abnormal state, the power supply source of the target object is switched from the first backup UPS to the second backup UPS, and the operating status of the second backup UPS continues to be monitored; when the second backup UPS is in an abnormal state, the power supply source of the target object is switched from the second backup UPS to the third backup UPS, and so on, until all the backup UPS are in an abnormal state.

[0056] Through the above optional implementation, by dynamically switching to the available backup UPS, continuous power supply can be maintained in the event of UPS abnormalities, thereby improving the reliability and stability of the power supply system, effectively coping with UPS single point failures, ensuring uninterrupted operation of critical loads, and improving the availability and performance of the entire power supply system.

[0057] In an optional embodiment, the method further comprises: When the first target capacity satisfies the normal operation of the target load size, calculating a load difference between the first target capacity and the target load size; When it is determined that the load difference is less than a preset difference threshold, obtaining the running time corresponding to each UPS in the working UPS; Determine a third target UPS in the working UPS according to the load distribution ratio and the running time, wherein the third target UPS is a set of UPS in the working UPS that can be switched from a running state to a sleeping state; The third target UPS is controlled to switch from the running state to the sleeping state.

[0058] In some embodiments, when the first target capacity satisfies the normal operation of the target load size, that is, when there is no need to start the standby UPS to provide power supply to the target object, the UPS parallel management device calculates the load difference between the first target capacity and the target load size, that is, the load difference = the first target capacity - the target load size. Among them, the load difference represents the redundancy of the power supply capacity of the working UPS at the current moment. After obtaining the load difference, it is determined whether the load difference is less than the preset difference threshold to determine whether it is necessary to improve energy efficiency by dormant part of the working UPS. When the load difference is less than the preset difference threshold, the running time corresponding to each UPS in the working UPS is further obtained through the built-in monitoring module of the UPS. Among them, the length of the running time reflects the degree of use and potential life consumption of the working UPS. According to the load distribution ratio and the running time, the UPS parallel management device can determine the UPS set in the working UPS that can be switched from the running state to the dormant state, that is, the third target UPS. Specifically, the corresponding weight is calculated according to the load distribution ratio and operating time of each working UPS, weight = load distribution ratio × (maximum operating time - current operating time), the working UPS are sorted according to the weight, and the working UPS with a weight lower than the preset weight threshold is selected as the third target UPS, that is, the working UPS corresponding to a lower load distribution ratio and a longer operating time is selected as the third target UPS.

[0059] After determining the third target UPS, the UPS parallel management device switches the third target UPS from the running state to the sleep state through a control instruction. The sleep state is a low power consumption mode, in which the UPS can still maintain basic monitoring and wake-up functions, but significantly reduces energy consumption.

[0060] Through the above optional implementation, first, the load difference and the preset threshold are used to judge the load situation to decide whether to put some UPS into sleep mode. Secondly, according to the load distribution ratio and the running time, the UPS that can sleep is intelligently selected to maximize the stability of the power supply system while improving energy efficiency. By dynamically adjusting the operating status of the UPS, the power supply system can meet the load requirements while minimizing unnecessary energy consumption, thereby improving the energy saving effect and operating cost-effectiveness of the power supply system.

[0061] In an optional embodiment, the method further comprises: Acquire the operating load corresponding to each UPS in the UPS cluster according to a first preset time period; When it is determined that the operating load is not within the preset load threshold interval within the second preset time period, it is determined that the operating load is greater than the first operating UPS corresponding to the upper limit value in the preset load threshold interval, and the operating load is less than the second operating UPS corresponding to the lower limit value in the preset load threshold interval; The first operating UPS is controlled to switch from an operating state to a sleeping state, and the operating load corresponding to the first operating UPS is distributed to the second operating UPS, so that the second operating UPS supplies power to the operating load corresponding to the first operating UPS.

[0062] In some embodiments, in order to prevent some working UPS from overheating or being damaged due to long-term operation, the UPS parallel management and control device can obtain the operating load corresponding to each UPS in the UPS cluster once in a first preset time period (for example, 1 day) according to the sliding window, and compare the operating load with the preset load threshold interval. When it is determined that the operating load is greater than the upper limit of the preset load threshold interval within a second preset time period (for example, 1 hour), it indicates that the working UPS corresponding to the operating load (i.e., the first operating UPS) is in overload operation and can be rotated to a standby or dormant state. When it is determined that the operating load is less than the lower limit of the preset load threshold interval within the second preset time period, it indicates that the working UPS corresponding to the operating load (i.e., the second operating UPS) is in low-load operation and can withstand more operating loads. Therefore, the UPS parallel management and control device can send a first control instruction to the first target UPS to control the first operating UPS to switch from the operating state to the dormant state, and send a second control instruction to the second target UPS so that the second target UPS bears the operating load of the first target UPS.

[0063] Through the above optional implementation, by real-time monitoring of the load condition, the UPS parallel management and control device can timely identify overload and underload conditions, avoiding UPS overload damage and inefficient energy consumption. By dynamically adjusting the UPS operating state and load distribution, the power supply system resource utilization is optimized, the power supply efficiency is improved, the service life of the UPS is extended, and the maintenance cost is reduced, thereby achieving the technical effects of intelligent management and energy saving and emission reduction.

[0064] In some embodiments, the UPS parallel management and control device can also provide a visual monitoring interface to display the operating status, load conditions, fault information, etc. of each UPS in the UPS cluster in real time. Once a fault or abnormal situation occurs, the UPS parallel management and control device can immediately issue an alarm message to notify the user or management personnel to handle it. The alarm information can be transmitted in various ways such as sound and light alarms, SMS notifications, and email reminders.

[0065] In a parallel UPS system, synchronization signals need to be maintained between each UPS to ensure that each UPS can work together. In some embodiments, a parallel card can be pre-configured inside each UPS in the UPS cluster, and the status of the UPS can be monitored, the output signal can be synchronized, and the work of each UPS can be coordinated through the parallel card. In other embodiments, the UPS parallel management device can pre-set a set of standardized communication interfaces and communication protocols, and each UPS in the UPS cluster follows the same communication interface and communication protocol, ensuring that each UPS can recognize each other's status and instructions for information exchange and information coordination. In other embodiments, master-slave synchronization or no master-slave synchronization can be adopted, and the synchronization of the output frequency, phase and voltage of each UPS inverter can be ensured through synchronization devices such as phase-locked loops (PLLs).

[0066] Through the above optional implementation, by internally configuring a parallel card or a standardized communication interface, status monitoring and command transmission between UPS are realized, which ensures the coordinated work between the UPSs while ensuring the stability and reliability of the power supply system operation, thereby improving the availability and safety of the power supply system.

[0067] Reference Figure 3 , which is a functional module diagram of a UPS parallel management device shown in an embodiment of the present application.

[0068] In some embodiments, the UPS parallel management device 30 may include a plurality of functional modules composed of computer program segments. The computer programs of the various program segments of the UPS parallel management device 30 may be stored in a memory of an electronic device and executed by at least one processor to execute (see Figure 2 Description) UPS parallel management function.

[0069] In this embodiment, the UPS parallel management device 30 can be divided into multiple functional modules according to the functions it performs. The functional modules may include: a detection module 301, a determination module 302, a prediction module 303, an allocation module 304, a startup module 305 and a switching module 306. The module referred to in this application refers to a series of computer program segments that can be executed by at least one processor and can complete fixed functions, which are stored in a memory. In this embodiment, the functions of each module will be described in detail in subsequent embodiments.

[0070] The detection module 301 is used to start the UPS cluster when it is detected that the grid power supply is in an abnormal state, so that the UPS cluster supplies power to the target object.

[0071] The determination module 302 is used to determine the performance parameters of each UPS in the UPS cluster and the number of UPS in the UPS cluster.

[0072] The prediction module 303 is used to predict the target load size of the target object based on the historical load size of the target object.

[0073] The allocation module 304 is used to allocate the target load data load size to each UPS in the UPS cluster according to the performance parameter and the number of UPS, so that each UPS in the UPS cluster supplies power to the target object.

[0074] The allocation module 304 is further specifically used to: select N UPS as working UPS and X UPS as standby UPS from the UPS cluster according to the number of UPS, wherein the number of UPS=N+X, and N and X are both integers greater than or equal to 1; determine the load distribution ratio corresponding to each UPS in the working UPS according to the performance parameters; and distribute the target load size to each UPS in the working UPS according to the load distribution ratio.

[0075] The determination module 302 is further used to: calculate the total rated power of the working UPS according to the rated power of each UPS in the working UPS; and determine the load distribution ratio according to the rated power and the total rated power.

[0076] The startup module 305 is used for: when it is detected that any one of the working UPS is in an abnormal state, obtaining the first target capacity of the first target UPS, wherein the first target UPS is a set of UPS in the working UPS except the UPS in the abnormal state; judging whether the first target capacity meets the normal operation of the target load size; when the first target capacity does not meet the normal operation of the target load size, starting the standby UPS according to the target capacity and the target load size, so that the second target capacities of the working UPS and the standby UPS meet the normal operation of the target load size.

[0077] The startup module 305 is also used for: when any one of the backup UPS is in an abnormal state, determining the priority order corresponding to each target load in the target load size; controlling the first target UPS and the second target UPS to supply power to the target load size according to the priority order, wherein the second target UPS is a set of UPS in the backup UPS except the UPS in an abnormal state.

[0078] The switching module 306 is used to: when the first target capacity satisfies the normal operation of the target load size, calculate the load difference between the first target capacity and the target load size; when it is determined that the load difference is less than a preset difference threshold, obtain the running time corresponding to each UPS in the working UPS; determine the third target UPS in the working UPS according to the load distribution ratio and the running time, the third target UPS being a set of UPS in the working UPS that can switch from the running state to the sleeping state; and control the third target UPS to switch from the running state to the sleeping state.

[0079] The switching module 306 is further used to: obtain the operating load corresponding to each UPS in the UPS cluster according to a first preset time period; when it is determined that the operating load is not in the preset load threshold interval within a second preset time period, determine that the operating load is greater than the first operating UPS corresponding to the upper limit value in the preset load threshold interval, and the operating load is less than the second operating UPS corresponding to the lower limit value in the preset load threshold interval; control the first operating UPS to switch from the operating state to the sleep state, and allocate the operating load corresponding to the first operating UPS to the second operating UPS, so that the second operating UPS supplies power to the operating load corresponding to the first operating UPS.

[0080] It should be understood that the various variations and specific embodiments of the UPS parallel management method provided in the above embodiments are also applicable to the UPS parallel management device in this embodiment. Through the above detailed description of the UPS parallel management method, those skilled in the art can clearly know the implementation method of the UPS parallel management device in this embodiment. For the sake of brevity of the specification, it will not be described in detail here.

[0081] Reference Figure 4 FIG. 1 is a schematic diagram of a UPS parallel management and control device according to an embodiment of the present application. In a preferred embodiment of the present application, the UPS parallel management and control device 12 includes a memory 121 , at least one processor 122 and at least one communication bus 123 .

[0082] Those skilled in the art should understand that Figure 4 The structure of the UPS parallel management and control device shown does not constitute a limitation of the embodiments of the present application, and can be either a bus structure or a star structure. The UPS parallel management and control device 12 can also include more or less other hardware or software than shown in the figure, or a different component arrangement.

[0083] In some embodiments, the UPS parallel management and control device 12 is a device that can automatically perform numerical calculations and / or information processing according to pre-set or stored instructions, and its hardware includes but is not limited to microprocessors, application-specific integrated circuits, programmable gate arrays, digital processors, and embedded devices. The UPS parallel management and control device 12 may also include user equipment, which includes but is not limited to any electronic product that can interact with a user through a keyboard, mouse, remote control, touchpad, or voice control device, such as a personal computer, tablet computer, smart phone, digital camera, etc.

[0084] It should be noted that the UPS parallel management and control device 12 is only an example, and other existing or future electronic products that are suitable for this application should also be included in the protection scope of this application and included here by reference.

[0085] In some embodiments, the memory 121 stores a computer program, and when the computer program is executed by the at least one processor 122, all or part of the steps in the UPS parallel management method described above are implemented. The memory 121 includes a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data. Furthermore, the computer-readable storage medium may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function, etc.; the data storage area may store data created according to the use of blockchain nodes, etc. The blockchain referred to in this application is a new application mode of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain is essentially a decentralized database, a string of data blocks generated by cryptographic methods, each of which contains a batch of network transaction information, which is used to verify the validity of its information (anti-counterfeiting) and generate the next block. Blockchain may include the underlying blockchain platform, the platform product service layer, and the application service layer.

[0086] In some embodiments, the at least one processor 122 is the control core (Control Unit) of the UPS parallel management and control device 12, and uses various interfaces and lines to connect the various components of the entire UPS parallel management and control device 12, and executes or executes the program or module stored in the memory 121, and calls the data stored in the memory 121 to execute various functions and process data of the UPS parallel management and control device 12. For example, when the at least one processor 122 executes the computer program stored in the memory, it implements all or part of the steps of the UPS parallel management method described in the embodiment of the present application; or implements all or part of the functions of the UPS parallel management device. The at least one processor 122 can be composed of an integrated circuit, for example, it can be composed of a single packaged integrated circuit, or it can be composed of multiple integrated circuits with the same function or different functions, including one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and combinations of various control chips.

[0087] In some embodiments, the at least one communication bus 123 is configured to realize connection and communication between the memory 121 and the at least one processor 122, etc. Although not shown, the UPS parallel management and control device 12 may also include a power supply (such as a battery) for supplying power to each component. Preferably, the power supply may be logically connected to the at least one processor 122 through a power management device, so as to realize functions such as management of charging, discharging, and power consumption management through the power management device. The power supply may also include any components such as one or more DC or AC power supplies, recharging devices, power failure detection circuits, power converters or inverters, power status indicators, etc. The UPS parallel management and control device 12 may also include a variety of sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be repeated here.

[0088] The above-mentioned integrated unit implemented in the form of a software function module can be stored in a computer-readable storage medium. The above-mentioned software function module is stored in a storage medium, including a number of instructions for enabling an electronic device (which can be a personal computer, electronic device, or network device, etc.) or a processor to execute part of the method described in each embodiment of the present application.

[0089] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative, for example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation.

[0090] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, and may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0091] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A UPS parallel management method, applied to a UPS parallel management system, characterized in that: The UPS parallel management system includes a UPS parallel system, the UPS parallel system includes a UPS cluster composed of multiple UPSs connected in parallel, and the method includes: When it is detected that the grid power supply is in an abnormal state, starting the UPS cluster so that the UPS cluster supplies power to the target object; Determining the performance parameters of each UPS in the UPS cluster and the number of UPS in the UPS cluster; Predicting a target load size of the target object based on a historical load size of the target object; The target load size is distributed to each UPS in the UPS cluster according to the performance parameter and the number of UPS, so that each UPS in the UPS cluster supplies electricity to the target object.

2. The UPS parallel management method according to claim 1, characterized in that: The allocating the target load size to each UPS according to the performance parameter and the number of UPSs comprises: Selecting N UPS as working UPS and X UPS as standby UPS from the UPS cluster according to the number of UPS, wherein the number of UPS=N+X, and N and X are both integers greater than or equal to 1; Determine the load distribution ratio corresponding to each UPS in the working UPS according to the performance parameter; The target load size is distributed to each UPS in the working UPS according to the load distribution ratio.

3. The UPS parallel management method according to claim 2, characterized in that: The performance parameter includes rated power, and determining the load distribution ratio corresponding to each UPS in the working UPS according to the performance parameter includes: Calculating the total rated power of the working UPS according to the rated power of each UPS in the working UPS; The load distribution ratio is determined according to the rated power and the total rated power.

4. The UPS parallel management method according to claim 2, characterized in that: The method further comprises: When it is detected that any one of the working UPS is in an abnormal state, obtaining a first target capacity of a first target UPS, wherein the first target UPS is a set of UPSs in the working UPS except the UPS in the abnormal state; Determining whether the first target capacity satisfies the normal operation of the target load size; When the first target capacity does not meet the normal operation of the target load size, the standby UPS is started according to the target capacity and the target load size so that the second target capacities of the working UPS and the standby UPS meet the normal operation of the target load size.

5. The UPS parallel management method according to claim 4, characterized in that: The method further comprises: When any one of the standby UPS is in an abnormal state, determining a priority order corresponding to each target load in the target load size; The first target UPS and the second target UPS are controlled to supply power for the target load size according to the priority order, wherein the second target UPS is a set of UPSs in the backup UPS except for the UPS in an abnormal state.

6. The UPS parallel management method according to claim 4, characterized in that: The method further comprises: When the first target capacity satisfies the normal operation of the target load size, calculating a load difference between the first target capacity and the target load size; When it is determined that the load difference is less than a preset difference threshold, obtaining the running time corresponding to each UPS in the working UPS; Determine a third target UPS in the working UPS according to the load distribution ratio and the running time, wherein the third target UPS is a set of UPS in the working UPS that can be switched from a running state to a sleeping state; The third target UPS is controlled to switch from the running state to the sleeping state.

7. The UPS parallel management method according to any one of claims 1 to 6, characterized in that: The method further comprises: Acquire the operating load corresponding to each UPS in the UPS cluster according to a first preset time period; When it is determined that the operating load is not within the preset load threshold interval within the second preset time period, it is determined that the operating load is greater than the first operating UPS corresponding to the upper limit value in the preset load threshold interval, and the operating load is less than the second operating UPS corresponding to the lower limit value in the preset load threshold interval; The first operating UPS is controlled to switch from an operating state to a sleeping state, and the operating load corresponding to the first operating UPS is distributed to the second operating UPS, so that the second operating UPS supplies power to the operating load corresponding to the first operating UPS.

8. A UPS parallel management device, arranged in a UPS parallel management system, characterized in that: The UPS parallel management system includes a UPS parallel system, the UPS parallel system includes a UPS cluster composed of multiple UPSs connected in parallel, and the UPS parallel management device includes: A detection module, configured to start the UPS cluster when detecting that the grid power supply is in an abnormal state, so that the UPS cluster supplies power to the target object; A determination module, used to determine the performance parameters of each UPS in the UPS cluster and the number of UPS in the UPS cluster; A prediction module, configured to predict a target load size of the target object based on a historical load size of the target object; A distribution module is used to distribute the target load data load size to each UPS in the UPS cluster according to the performance parameter and the number of UPS, so that each UPS in the UPS cluster supplies electricity to the target object.

9. A UPS parallel management system, characterized in that: The UPS parallel management system includes a UPS parallel system, which includes a UPS cluster consisting of multiple UPSs connected in parallel and a UPS parallel management and control device. The UPS parallel management and control device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the UPS parallel management method described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the UPS parallel management method according to any one of claims 1 to 7 are implemented.

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