Power distribution shelter control method and system, intelligent terminal and storage medium

Abstract

The invention relates to a power distribution shelter control method and system, an intelligent terminal and a storage medium, and relates to the technical field of power distribution shelter control, and the method comprises the steps: collecting power supply operation parameters of a first power supply path in real time; when the power supply operation parameters do not meet the preset operation parameters, abnormal diagnosis data of the first power supply path is generated; controlling the first power supply to be disconnected from the first power distribution shelter according to the abnormal diagnosis data; a control switch on the connection path is closed, so that the second power supply supplies power to the first power distribution square cabin; and adjusting the power supply strategy of the first power distribution shelter according to the load demand of the load node. According to the invention, stable power supply is provided for the load node, and continuous operation of the load node is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of distribution cabin control, and in particular to a distribution cabin control method, system, intelligent terminal and storage medium. Background Art

[0002] In the urban power distribution system, in order to ensure continuous power supply to important load nodes, usually two power supply paths are set for power supply redundancy. A power supply path refers to a current transmission path formed by delivering electric energy from a power source through a power distribution cabinet to a load node. Among the above two power supply paths, one is set as the main power supply path, which undertakes the power supply task to the load node during daily operation; the other is the auxiliary power supply path, which is in a standby state and is used to provide backup power supply guarantee when the main power supply path has an abnormality or a fault.

[0003] In the prior art, the power source of the auxiliary power supply path and its corresponding power distribution cabinet are usually in a disconnected state and have not participated in operation for a long time. When the main power supply path fails, it is necessary to switch the power supply through the auxiliary power supply path. However, since the power distribution cabinet of the auxiliary power supply path has been out of operation for a long time, problems such as aging and poor contact may occur in its internal components, and there is a high risk of failure. Based on this situation, the probability that the auxiliary power supply path cannot undertake the power supply task of the load node in a timely and stable manner is relatively high, resulting in the interruption of the power supply to the load node, and further affecting the continuous operation of the auxiliary node. Summary of the Invention

[0004] In order to provide stable power supply to the load node and ensure the continuous operation of the load node, the present application provides a distribution cabin control method, system, intelligent terminal and storage medium.

[0005] In the first aspect, the present application provides a distribution cabin control method, adopting the following technical solution: A distribution cabin control method includes: Real-time collect the power supply operation parameters of the first power supply path; Generate abnormal diagnosis data of the first power supply path when the power supply operation parameters do not meet the preset operation parameters; According to the abnormal diagnosis data, control the disconnection of the first power source from the first distribution cabin; Close the control switch on the connection path to enable the second power source to supply power to the first distribution cabin; Adjust the power supply strategy of the first distribution cabin according to the load demand of the load node.

[0006] By adopting the above technical solution, the power supply operation parameters of the first power supply path are collected in real time, and when the power supply operation parameters do not meet the preset operation parameters, abnormal diagnosis data of the first power supply path is generated. Then, according to the abnormal diagnosis data, the first power supply and the first power distribution cabin are controlled to disconnect, and the second power supply is used to supply power to the first power distribution cabin, so as to provide stable power supply to the load node and ensure the continuous operation of the load node.

[0007] Optionally, the step of adjusting the power supply strategy of the first power distribution cabin according to the load demand of the load node includes: Obtain the load level of the load node, where the load level includes the first load level, the second load level, and the third load level; Judge whether the second power supply meets the load demands of all the load nodes; If not, generate a power supply list according to the load level; Perform priority continuous power supply to the load nodes of the first load level according to the power supply list; Perform periodic power supply to the load nodes of the second load level according to the power supply list; Perform delayed power supply to the load nodes of the third load level according to the power supply list.

[0008] By adopting the above technical solution, when the power supply capacity of the second power supply is insufficient to meet all the load nodes, power supply to the load nodes can be carried out with different strategies based on the load level. Priority continuous power supply is performed for the load nodes of the first load level, periodic power supply is performed for the load nodes of the second load level, and delayed power supply is performed for the load nodes of the third load level. On the one hand, it can ensure the normal operation of the load nodes of the first load level, and on the other hand, it can reduce the power consumption of the remaining load nodes and improve the overall power supply stability.

[0009] Optionally, the step of obtaining the load level of the load node includes: Obtain the device information of the load node; Obtain the corresponding device type information, working mode information, and working period information according to the device information; Perform weighted calculation according to the device type information, the working mode information, and the working period information to obtain a load score; Match the load score with the preset level score interval to determine the load level corresponding to the load node.

[0010] By adopting the above technical solution, it is possible to perform weighted calculation based on the device information of the load nodes and according to factors such as device type, working mode, and working period, so as to evaluate the degree of dependence of each load node on power supply, and determine the load level by matching with the preset level scoring interval, which can more accurately reflect the degree of dependence of the load nodes on power supply and help improve the power supply guarantee ability in the case of power anomalies or resource constraints.

[0011] Optionally, it is detected in real time whether the power supply condition of the first power supply meets the preset power supply condition; If so, obtain the power supply restoration sequence based on the power supply list; When the power supply operation parameters meet the preset operation parameters, control the control switch on the connection path to perform an opening operation; Control the first power supply to be closed and connected to the first power distribution cabin; Restore power supply to the load nodes in a soft start manner according to the power supply restoration sequence.

[0012] By adopting the above technical solution, when the power supply restoration condition of the first power supply meets the preset requirements, it is possible to obtain the power supply restoration sequence according to the power supply list, and restore power supply to the load nodes in a soft start manner according to the power supply restoration sequence, which can prevent the impact of current mutation on the power supply system and equipment, reduce the overload risk, realize a smooth power supply restoration process for the load nodes, and further improve the power supply stability of the power distribution cabin.

[0013] Optionally, before performing the step of controlling the control switch on the connection path to perform an opening operation, control the first power distribution cabin to access the standby power supply; Judge whether the standby power supply meets the power supply requirements of all the load nodes; If so, perform the first power supply switching step, and the first power supply switching step includes: controlling the first power distribution cabin to supply power to the load nodes using the standby power supply according to the power supply restoration sequence, and controlling the first power distribution cabin to stop supplying power to the load nodes using the second power supply according to the power supply restoration sequence; If not, perform the second power supply switching step, and the second power supply switching step includes: controlling the first power distribution cabin to supply power to the load nodes of the first load level using the standby power supply, and controlling the first power distribution cabin to stop supplying power to the load nodes of the first load level using the second power supply.

[0014] By adopting the above technical solution, it is possible to ensure the continuous operation of the load nodes by using the backup power supply before the first power supply resumes power supply, and different switching strategies can be selected according to the power supply capacity of the backup power supply: if the backup power supply can meet the needs of all load nodes, seamless power switching of all load nodes is achieved through the backup power supply; if the backup power supply cannot meet the needs of all load nodes, reasonable allocation of power supply resources is achieved by preferentially ensuring the power supply of the first load level nodes.

[0015] Optionally, obtain the distribution values of the direct current and alternating current of the second power supply; Obtain the power type requirement information of all the current load nodes; Obtain the power supply distribution value deviation based on the distribution value and the power type requirement information; Judge whether the power supply distribution value deviation is greater than a preset deviation threshold; If so, control the first power distribution cabin to perform distribution adjustment operations on the direct current and alternating current of the second power supply to obtain a matching power supply; Control the first power distribution cabin to use the matching power supply to supply power to the load nodes.

[0016] By adopting the above technical solution, by obtaining the distribution values of the direct current and alternating current of the second power supply and combining the power type requirement information of all the current load nodes, the power supply distribution value deviation is calculated, and when the power supply distribution deviation is greater than the preset deviation threshold, by adjusting the distribution ratio of the direct current and alternating current of the second power supply, it is ensured that different types of load nodes can obtain matching power supply resources, improving the adaptability of the second power supply.

[0017] Optionally, obtain the load nodes that cannot be matched with the matching power supply to obtain unmatched nodes; Obtain power supply information according to the power type requirement information of the unmatched nodes; Control the first power distribution cabin to connect to the backup power supply; Perform a deployment operation on the backup power supply according to the power supply information to obtain a backup matching power supply that matches the unmatched nodes; Control the first power distribution cabin to use the backup matching power supply to supply power to the unmatched nodes.

[0018] By adopting the above technical solution, when the second power supply cannot provide power that meets the power type requirements of all load nodes, the unmatched nodes are obtained, the power supply information is obtained according to the power type requirement information thereof, and the standby power supply is allocated according to the power supply information, so that the standby power supply can be matched with the unmatched nodes to obtain a standby matching power supply. Finally, the standby matching power supply is used to supply power to the unmatched nodes to meet the power supply requirements of the unmatched nodes and ensure the normal operation of all load nodes.

[0019] In a second aspect, the present application provides a distribution cabin control system, adopting the following technical solution: A distribution cabin control system includes: An acquisition module for acquiring power supply operation parameters; A memory for storing the program of the distribution cabin control method; A processor, and the program in the memory can be loaded and executed by the processor to implement the distribution cabin control method.

[0020] By adopting the above technical solution, the power supply operation parameters of the first power supply path are collected in real time, and when the power supply operation parameters do not meet the preset operation parameters, the abnormal diagnosis data of the first power supply path is generated. Then, according to the abnormal diagnosis data, the first power supply and the first distribution cabin are controlled to disconnect, and the second power supply is used to supply power to the first distribution cabin, so as to provide stable power supply to the load nodes and ensure the continuous operation of the load nodes.

[0021] In a third aspect, the present application provides an intelligent terminal, adopting the following technical solution: An intelligent terminal includes a memory and a processor, and a computer program capable of being loaded and executed by the processor and implementing any one of the above methods is stored on the memory.

[0022] In a fourth aspect, the present application provides a computer storage medium, which can store corresponding programs and has the characteristics of facilitating the realization of providing stable power supply to load nodes and ensuring the continuous operation of load nodes. The following technical solution is adopted: A computer-readable storage medium stores a computer program capable of being loaded and executed by a processor and implementing any one of the above distribution cabin control methods.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: By collecting the power supply operation parameters of the first power supply path in real time, and generating abnormal diagnosis data of the first power supply path when the power supply operation parameters do not meet the preset operation parameters, and then controlling the disconnection of the first power supply and the first power distribution cabin according to the abnormal diagnosis data and using the second power supply to supply power to the first power distribution cabin, so as to provide stable power supply to the load node to ensure the continuous operation of the load node; When the power supply capacity of the second power supply is not enough to meet all load nodes, it is possible to supply power to the load nodes with different strategies based on the load level. Give priority to continuous power supply for the load nodes of the first load level, supply power periodically for the load nodes of the second load level, and supply power with a delay for the load nodes of the third load level. On the one hand, it can ensure the normal operation of the load nodes of the first load level. On the other hand, it can reduce the power consumption of the remaining load nodes and improve the stability of the overall power supply; When the second power supply cannot provide the power that meets the power type requirements of all load nodes, obtain the unmatched nodes, obtain the power supply information according to the power type requirement information thereof, and allocate the standby power supply according to the power supply information, so that the standby power supply can be matched with the unmatched nodes and obtain the standby matching power supply. Finally, use the standby matching power supply to supply power to the unmatched nodes to meet the power supply requirements of the unmatched nodes and ensure the normal operation of all load nodes. Description of the Drawings

[0024] Figure 1 It is a schematic flowchart of a control method for a power distribution cabin in an embodiment of the present application.

[0025] Figure 2 It is a schematic flowchart of the steps of adjusting the power supply strategy of the first power distribution cabin according to the load requirements of the load nodes in an embodiment of the present application.

[0026] Figure 3 It is a schematic flowchart of the steps of obtaining the load level of the load nodes in an embodiment of the present application.

[0027] Figure 4 It is a schematic flowchart of a power supply switching method in an embodiment of the present application.

[0028] Figure 5 It is a schematic flowchart of a standby power supply access method in an embodiment of the present application.

[0029] Figure 6 It is a schematic flowchart of a power supply distribution method in an embodiment of the present application.

[0030] Figure 7 It is a schematic flowchart of a standby power supply distribution method in an embodiment of the present application. Detailed Embodiments

[0031] To make the objectives, technical solutions and advantages of this application clearer and more understandable, the following further elaborates on this application in conjunction with Figures 1-7 and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0032] An embodiment of this application discloses a control method for a power distribution cabin. Referring to Figure 1 , the control method for the power distribution cabin includes: Step S101: Collect the power supply operation parameters of the first power supply path in real time.

[0033] The first power supply path refers to a power supply line that is powered by a first power source and transmits electrical energy to each load node via a first power distribution cabin. Among them, the first power source is a power supply source that transmits electrical energy to the first power distribution cabin. The first power distribution cabin includes key equipment for power conversion and distribution such as transformers, incoming line cabinets, tie cabinets, UPS (Uninterruptible Power Supply), and feeder cabinets. Exemplarily, the first power source is the A-phase mains power. The first power source is connected to the incoming line cabinet. The load node is a terminal electrical equipment connected to the feeder cabinet, such as a server, lighting system, etc.

[0034] The power supply operation parameters refer to the power operation parameters of each node on the first power supply path, including the power supply conditions of the first power source, the operation state parameters of the first power distribution cabin, and the operation state parameters of the load node. Among them, the power supply conditions of the first power source include: voltage, current, frequency, connection status, etc. The operation state parameters of the first power distribution cabin include: the input / output voltage and current of the transformer; the switch state and load current of the incoming line cabinet; the connection status of the tie cabinet; the input / output voltage, battery charge / discharge status, inverter mode, and bypass status of the UPS. The operation state parameters of the load node include: the voltage, current, power, etc. of the load node. Various types of parameters are obtained by various sensors arranged in the first power distribution cabin.

[0035] Among them, the load node is also connected to a second power supply path, which is powered by a second power source and transmits electrical energy to each load node via a second power distribution cabin. The structure of the second power distribution cabin can refer to the structure of the first power distribution cabin. The second power source and the second power distribution cabin are in a disconnected state under normal conditions. Exemplarily, the second power source can be the B-phase mains power or a temporary external power source, such as a generator.

[0036] Step S102: Generate abnormal diagnosis data for the first power supply path when the power supply operation parameters do not meet the preset operation parameters.

[0037] The preset operating parameter is a preset constant, which is a parameter range used to determine whether the first power supply path is in a normal operating state, and can be adjusted according to actual needs.

[0038] Abnormal diagnostic data refers to the diagnostic result data obtained through system analysis when the power supply operating parameters deviate from the preset operating parameters, including abnormal data of the power supply conditions of the first power supply, abnormal data of the operating status parameters of the first distribution cabin, and abnormal data of the operating status parameters of the load node.

[0039] An abnormality judgment module is configured in the first power distribution cabin, which is used to collect data on the first power supply path and perform real-time analysis. After the abnormality is triggered, the abnormality judgment module generates abnormality diagnostic data including abnormality type, occurrence location, measured value and time information.

[0040] Exemplarily, the mains power supply of line A is in a suspended power supply state, that is, the first power supply cannot provide power to the first power distribution cabin, and the system detects that the voltage of the first power supply is 0V. Therefore, the abnormal diagnostic data shows that the connectivity state in the power supply condition of the first power supply is a circuit breaker state.

[0041] Step S103: according to the abnormal diagnosis data, control the first power supply to be disconnected from the first power distribution shelter.

[0042] When the abnormal diagnosis data shows that the voltage of the first power supply is in an abnormal state, that is, the voltage of the first power supply is less than the preset voltage value, the system determines that the power currently provided by the first power supply cannot guarantee the normal operation of the load node, and sends a circuit breaker instruction to the incoming cabinet, and the circuit breaker in the incoming cabinet is disconnected from the first power supply. The preset voltage value is a preset constant and can be adjusted according to actual conditions.

[0043] Step S104: close the control switch on the communication path to enable the second power supply to supply power to the first power distribution shelter.

[0044] A communication line is pre-set between the communication cabinet in the first distribution cabin and the communication cabinet in the second distribution cabin, and a communication path is formed between the first distribution cabin, the communication line and the second distribution cabin, wherein both ends of the communication line are provided with communication switches, which are normally in an open state.

[0045] In some embodiments, the second power distribution shelter may have a fault, so that the second power supply cannot directly supply power to the load node through the second power distribution shelter. By closing the control switch on the communication path, that is, closing the connection switches at both ends of the communication line, the current of the second power supply is transmitted to the first power distribution shelter along the communication line, thereby supplying power to the first power distribution shelter.

[0046] Step S105: adjusting the power supply strategy of the first power distribution shelter according to the load demand of the load node.

[0047] The load demand refers to the power supply conditions required for the normal operation of the load node, including parameter requirements such as voltage, current, frequency, phase, power supply type (alternating current or direct current), etc.

[0048] The power supply strategy is a method for power distribution and regulation of the accessed power supply through the first power distribution cabin, which can be adjusted according to the load demand. The specific steps can refer to Figure 2 the steps in the embodiments.

[0049] By adopting the above technical solution, by collecting the power supply operation parameters of the first power supply path in real time, and generating abnormal diagnosis data of the first power supply path when the power supply operation parameters do not meet the preset operation parameters, and then according to the abnormal diagnosis data, controlling the first power supply and the first power distribution cabin to disconnect and using the second power supply to supply power to the first power distribution cabin, so as to provide stable power supply to the load node to ensure the continuous operation of the load node.

[0050] Refer to Figure 2 , the steps of adjusting the power supply strategy of the first power distribution cabin according to the load demand of the load node include: Step S201: Obtain the load level of the load node. The load level includes the first load level, the second load level, and the third load level.

[0051] The load level indicates the degree of dependence of the load node on the power supply during operation.

[0052] The first load level represents a high-priority load, which means that the device needs to ensure stable and continuous power supply during operation; the second load level represents a medium-priority load, which means that the device can be temporarily interrupted during operation, but needs to restore power supply first; the third load level represents a low-priority load, which means that the device can be powered later in case of insufficient power supply.

[0053] Among them, the specific steps of obtaining the load level of the load node can refer to Figure 3 the steps in the embodiments.

[0054] Step S202: Determine whether the second power supply meets the load demands of all load nodes.

[0055] The load demands of all load nodes are the sum of the load demands of all load nodes. In the case where the second power supply does not meet the load demands of all load nodes, execute step S203.

[0056] Exemplarily, there are load node 1, load node 2, and load node 3. When load node 1 is working properly, its power is 4000W. When load node 2 is working properly, its power is 2000W. When load node 3 is working properly, its power is 1000W. Therefore, the total power demand of all load nodes is 7000W. Since the output power of the second power supply is 5000W, the second power supply does not meet the load requirements of all load nodes. Therefore, step S203 is executed.

[0057] Step S203: If not, generate a power supply list according to the load levels.

[0058] In another aspect, if the second power supply meets the load requirements of all load nodes, no operation is performed.

[0059] The power supply list is a power distribution list with a priority order generated according to the load levels of the load nodes. The power supply list lists the power supply priorities of each load node and sorts the load nodes in descending order according to the load levels.

[0060] Step S204: Continuously supply power to the load nodes of the first load level preferentially according to the power supply list.

[0061] After obtaining the power supply list, the load nodes of the first load level in the power supply list are the most prioritized power supply objects. The electric energy input by the second power supply is distributed through the first power distribution cabin to continuously supply power to the load nodes of the first load level preferentially.

[0062] Exemplarily, in the power supply list, load node 1 is a server. The server needs to ensure continuous power supply during operation. Therefore, load node 1 can be used as the first load level. Load node 1 is at the first position in the power supply list and needs to be continuously supplied power preferentially.

[0063] Step S205: Supply power to the load nodes of the second load level periodically according to the power supply list.

[0064] Periodic power supply is an operation of supplying power to the load node according to a preset power supply duration, then stopping the power supply to the load node, and after an interval of a preset interval duration, resuming the power supply to the load node. Both the preset power supply duration and the preset interval duration are preset constants and can be adjusted according to actual requirements.

[0065] Exemplarily, in the power supply list, the load node 2 is an air conditioner, and the air conditioner can perform a temporary power supply interruption operation during operation. Therefore, the load node 2 can be used as the second load level. After the power supply to the load node 2 reaches the preset power supply duration, the power supply to the load node 2 is disconnected through the first power distribution cabin, and after a preset interval duration, the power supply to the load node 2 is restored, and so on, repeating the foregoing steps to achieve periodic power supply to the load node.

[0066] Step S206: Delay the power supply to the load nodes of the third load level according to the power supply list.

[0067] Delayed power supply refers to the operation of supplying power to the load nodes of the third load level according to the remaining power resources on the premise of ensuring the power supply to the load nodes of the first load level.

[0068] Exemplarily, in the power supply list, the load node 3 is a video wall. When the power supply is insufficient, the video wall can be temporarily turned off and the power supply to the video wall is restored after the power supply is sufficient to achieve delayed power supply to the video wall.

[0069] By adopting the above technical solutions, when the power supply capacity of the second power supply is insufficient to meet all load nodes, different strategies for power supply to load nodes can be carried out based on the load level, giving priority to continuous power supply to the load nodes of the first load level, performing periodic power supply to the load nodes of the second load level, and performing delayed power supply to the load nodes of the third load level. On the one hand, it can ensure the normal operation of the load nodes of the first load level, and on the other hand, it can reduce the power consumption of the remaining load nodes and improve the overall power supply stability.

[0070] Refer to Figure 3 , the steps of obtaining the load level of the load node include: Step S301: Obtain the device information of the load node.

[0071] Device information refers to the basic attribute information of the electrical equipment of the load node, including device model, rated power, and usage frequency.

[0072] The device information can be pre-saved in the database by the operator, and the device information corresponding to the load node can be obtained in the database.

[0073] Step S302: Obtain the corresponding device type information, working mode information, and working period information according to the device information.

[0074] Device type information refers to the type of the device, and the type range can be preset by the operator, such as core control equipment, communication equipment, guarantee equipment, and auxiliary equipment.

[0075] The working mode information refers to the types of operating states of the device, including continuous operation, intermittent operation, and on-demand operation. Among them, on-demand operation means that the device does not set a fixed operating time and is only started when needed. The types of operating states of the device can be manually input by the operator according to the device type and stored in the database.

[0076] The working period information refers to the common enabling time periods of the device within a day, including the all-day period, peak period, and night period. Among them, the working period information can be obtained from the historical time records of the device operation. The peak period represents the peak period of electricity consumption, such as from 10:00 to 16:00. Exemplarily, if the operating time of device A in the historical time record is from 19:00 to 4:00 the next day, then the night period can be used as the working period information of device A.

[0077] Step S303: Perform weighted calculation according to the device type information, working mode information, and working period information to obtain the load score.

[0078] The load score is used to describe the degree of dependence of the device corresponding to the load node on power supply, and the load level can be determined according to the load score.

[0079] Let: T: Device type information, α: Weight of device type information; M: Working mode information, β: Weight of working mode information; P: Working period information, γ: Weight of working period information; Then the load score S = T×α + M×β + P×γ.

[0080] Among them, it satisfies α + β + γ = 1. The weight α of the device type information, the weight β of the working mode information, and the weight γ of the working period information are preset. For example, the weight α of the device type information can be set to 0.5, the weight β of the working mode information can be set to 0.3, and the weight γ of the working period information can be set to 0.2.

[0081] Exemplarily, the core control device can be set to 100 points, the communication device can be set to 80 points, the guarantee device can be set to 70 points, and the auxiliary device can be set to 60 points. Continuous operation can be set to 100 points, intermittent operation can be set to 60 points, and on-demand operation can be set to 40 points. The all-day period can be set to 100 points, the peak period can be set to 80 points, and the night period can be set to 60 points.

[0082] For example, device B is an air conditioner, belonging to the auxiliary device, and its working mode is intermittent operation, and the working period is the all-day period. Therefore, the load score S of device B B=60×0.5 + 60×0.3 + 100×0.2 = 68. Device C is a printer, which belongs to auxiliary equipment and operates on a demand basis during peak hours. Therefore, the load score S of device C C =60×0.5 + 40×0.3 + 80×0.2 = 58. Device D is a server, which belongs to core control equipment and operates continuously throughout the day. Therefore, the load score S of device D D =100×0.5 + 100×0.3 + 100×0.2 = 100.

[0083] Step S304: Match the load score with the preset grade score interval to determine the load grade corresponding to the load node.

[0084] The preset grade score interval is a preset constant interval, which can be adjusted according to actual needs. For example, the preset grade score interval can be set to three intervals: 80 - 100 points, 60 - 79 points, and below 60 points, which are used to represent the first load grade, the second load grade, and the third load grade respectively.

[0085] Exemplarily, the load score S of device D D is 100 points. Therefore, device D is of the first load grade, that is, the load node corresponding to device D is of the first load grade. The load score S of device B B is 68 points. Therefore, device B is of the second load grade, that is, the load node corresponding to device B is of the second load grade.

[0086] By adopting the above technical solution, it is possible to perform weighted calculation based on the device information of the load node and according to factors such as device type, working mode, and working period, so as to evaluate the degree of dependence of each load node on power supply, and determine the load grade by matching with the preset grade score interval, which can more accurately reflect the degree of dependence of the load node on power supply and help improve the power supply guarantee ability in case of power anomalies or resource constraints.

[0087] In the following embodiments, after a certain period of time, the power supply condition of the first power supply can meet the load requirements of all load nodes. Therefore, it is necessary to switch back to the first power supply for power supply. The embodiments of the present application provide a power supply switching method. Referring to Figure 4 , the method includes: Step S401: Real - time detect whether the power supply condition of the first power supply meets the preset power supply condition.

[0088] The preset power supply condition is a preset judgment criterion, which represents the basic requirements for the first power supply to be restored as the power supply source and can be adjusted according to actual needs.

[0089] Exemplarily, the preset power supply conditions can be set as follows: the voltage is within the range of 220V ± 11V (i.e., 209V to 231V), the frequency is maintained between 50Hz ± 0.5Hz, and the stable voltage duration is not less than 30 seconds. If the voltage of the first power supply is detected to be 225V, the frequency is 50.2Hz, and the above state is continuously maintained for more than 40 seconds, it is determined that the power supply conditions of the first power supply meet the preset power supply conditions, so step S402 can be executed.

[0090] Step S402: If so, obtain the power supply restoration sequence based on the power supply list.

[0091] In another aspect, if the power supply conditions of the first power supply do not meet the preset power supply conditions, the process of this embodiment is ended.

[0092] The power supply restoration sequence represents a specific sequence for restoring the power supply of each load node through the first power distribution cabin after switching the power supply. Among them, the ranking order of each load node in the power supply restoration sequence power supply list is the same, that is, it is sorted in descending order according to the load level of the load node.

[0093] Step S403: When the power supply operation parameters meet the preset operation parameters, control the control switch on the connection path to open.

[0094] When the power supply operation parameters meet the preset operation parameters, at this time, it means that the first power supply can be used as the power supply to supply power to the first power distribution cabin. Therefore, control the control switch on the connection path to open so that the first power supply is electrically connected to the first power distribution cabin.

[0095] Step S404: Control the first power supply to be closed and connected to the first power distribution cabin.

[0096] Among them, the first power supply is connected to the circuit breaker in the incoming line cabinet of the first power distribution cabin. By closing the circuit breaker, the first power supply supplies power to the first power distribution cabin.

[0097] Step S405: Restore the power supply to the load nodes according to the power supply restoration sequence and in a soft start manner.

[0098] The soft start method refers to a control strategy in which when restoring the power supply to the load node, the voltage or current is gradually increased to control the peak value of the starting current and avoid the occurrence of inrush current, which may cause equipment damage. The soft start method can be realized by current limiters, frequency converters, etc. set in the feeder cabinet.

[0099] The system sets the startup delay and startup slope parameters for each load node. During the power supply restoration process, according to the power supply restoration sequence, the load nodes are started up with a time delay one by one, and the equipment is smoothly transitioned from low power to normal operating power in a gradually increasing manner. For example, the system can be configured to restore one load node every 2 seconds and control the startup current of the load node not to exceed 1.5 times the rated value, thereby ensuring the stability of the overall power supply system and the safety of the load.

[0100] By adopting the above technical solution, when the power supply condition of the first power supply meets the preset requirements, the power supply restoration sequence can be obtained according to the power supply list, and the load nodes can be restored to power according to the power supply restoration sequence and the channel soft startup method, which can prevent the impact of current mutation on the power supply system and equipment, reduce the overload risk, realize a smooth power supply restoration process for the load nodes, and further improve the power supply stability of the distribution cabin.

[0101] In the following embodiments, during the process of re-switching the first power supply as the power supply source, there is a switching time gap. If the load node is in the operating state, it may cause the load node to lose power. To improve this situation, the embodiment of the present application provides a method for accessing a backup power supply. Refer to Figure 5 , the method includes: Step S501: Before performing the step of opening the control switch on the control connection path, control the first distribution cabin to access the backup power supply.

[0102] The backup power supply is a temporarily accessed backup power source. The backup power supply includes a generator set, a battery energy storage system, and a UPS system. The backup power supply is docked with the reserved backup interface of the incoming cabinet of the first distribution cabin.

[0103] To prevent the inability to supply power to the load node after disconnecting the control switch on the connection path, resulting in the shutdown of the load node, the switch on the reserved backup interface is controlled to be closed, so that the first distribution cabin accesses the backup power supply.

[0104] Step S502: Determine whether the backup power supply meets the power supply requirements of all load nodes.

[0105] The acquisition of the power supply requirements of all load nodes can refer to step S202.

[0106] If the backup power supply meets the power supply requirements of all load nodes, step S503 is executed. If the backup power supply cannot meet the power supply requirements of all load nodes, step S504 is executed.

[0107] Step S503: If so, execute the first power supply switching step, which includes: controlling the first power distribution cabin to supply power to the load nodes using the backup power supply according to the power supply restoration sequence, and controlling the first power distribution cabin to stop supplying power to the load nodes using the second power supply according to the power supply restoration sequence.

[0108] If so, it means that the backup power supply meets the power supply requirements of all load nodes. Therefore, the first power supply switching step is executed. Among them, there are several feeder cabinets in the first power distribution cabin, and each feeder cabinet is connected to the load nodes. According to the power supply restoration sequence, control the feeder cabinets to access the circuit connected to the backup power supply, so that the backup power supply supplies power to the corresponding feeder cabinets and supplies power to the load nodes corresponding to the feeder cabinets. At the same time, after the backup power supply successfully supplies power to the feeder cabinet, disconnect the circuit of the second power supply in the feeder cabinet to avoid simultaneous power supply from the two power supplies. According to the power supply restoration sequence, repeat the above steps to complete the power supply switching of each feeder cabinet one by one until all load nodes complete the switching from the second power supply to the backup power supply.

[0109] Step S504: If not, execute the second power supply switching step, which includes: controlling the first power distribution cabin to supply power to the load nodes of the first load level using the backup power supply, and controlling the first power distribution cabin to stop supplying power to the load nodes of the first load level using the second power supply.

[0110] If not, it means that the backup power supply cannot meet the power supply requirements of all load nodes. Therefore, the second power supply switching step is executed to ensure stable power supply to the load nodes of the first load level. Among them, obtain the feeder cabinets corresponding to all the load nodes of the first load level to get the target feeder cabinets. Control the target feeder cabinets to access the circuit connected to the backup power supply, so that the backup power supply supplies power to the load nodes corresponding to the target feeder cabinets. At the same time, after the backup power supply successfully supplies power to the target feeder cabinet, disconnect the circuit of the second power supply in the target feeder cabinet. According to the power supply restoration sequence, repeat the above steps to complete the power supply switching of each target feeder cabinet one by one until all the load nodes of the first load level complete the switching from the second power supply to the backup power supply.

[0111] By adopting the above technical solution, it is possible to ensure the continuous operation of the load nodes using the backup power supply before the first power supply resumes power supply, and different switching strategies can be selected according to the power supply capacity of the backup power supply: if the backup power supply can meet the requirements of all load nodes, seamless power supply switching of all load nodes can be achieved through the backup power supply; if the backup power supply cannot meet the requirements of all load nodes, reasonable allocation of power supply resources can be achieved by preferentially ensuring the power supply of the load nodes of the first load level.

[0112] In the following embodiments, when the second power supply is used to supply power to the first power distribution cabin, it is possible that due to the different distribution values of alternating current and direct current in the second power supply and the distribution values of alternating current and direct current in the first power supply, some load nodes cannot operate normally. To improve this problem, the embodiments of the present application provide a power supply distribution method. Referring to Figure 6 , the method includes: Step S601: Obtain the distribution values of direct current and alternating current of the second power supply.

[0113] Among them, the distribution value refers to the power of direct current and the power of alternating current in the second power supply.

[0114] In this embodiment, the second power supply is an integrated power supply unit, which has the ability to output direct current and alternating current simultaneously to supply load nodes with different power supply type requirements. Among them, two independent multi-functional power meters are set in the incoming line cabinet, which can respectively obtain the power P of direct current dc and the power P of alternating current ac in the second power supply.

[0115] Step S602: Obtain the power supply type requirement information of all current load nodes.

[0116] The power supply type requirement information represents the power supply type required for the normal operation of the load node, such as alternating current or direct current, and the power when the load node operates normally. Among them, the device information corresponding to the load node can be input by the operator in the database. The device information includes parameters such as power supply type (alternating current or direct current), rated voltage, rated current, power, etc. Therefore, when obtaining the voltage type requirement information, it can be retrieved from the database to obtain the power supply type and power required for the normal operation of the load node.

[0117] Step S603: Obtain the power supply distribution value deviation based on the distribution value and the power supply type requirement information.

[0118] Among all load nodes, according to the power supply type, sum the powers of the load nodes corresponding to the power supply type, that is, the total direct current power and the total alternating current power. Subtract the direct current power in the distribution value from the total direct current power to obtain the direct current deviation value, and subtract the alternating current power in the distribution value from the total alternating current power to obtain the alternating current deviation value. Among them, the power supply distribution deviation value is obtained according to the direct current deviation value and the alternating current deviation value.

[0119] Exemplarily, there are load nodes 1 - 10. Among them, the power supply types required by load node 1 and load nodes 1 - 4 are direct current, and the required powers are 100W, 200W, 150W, and 250W respectively. Therefore, the total power of the load nodes with direct current as the power supply type is 700W. The power supply types required by load nodes 5 - 10 are alternating current, and the required powers are 500W, 300W, 600W, 400W, 200W, and 100W respectively. Therefore, the total power of the load nodes with alternating current as the power supply type is 2100W. The direct current power in the second power supply is 1200W, and the alternating current power is 1800W. Therefore, the direct current deviation value is +500W, and the alternating current deviation value is -300W.

[0120] Step S604: Determine whether the power supply distribution value deviation is greater than a preset deviation threshold.

[0121] The preset deviation threshold is a preset constant and can be adjusted according to actual requirements. In this embodiment, the preset deviation threshold can be set to ±100W.

[0122] By comparing the direct current deviation value and the alternating current deviation value in the power supply distribution deviation value with the preset deviation threshold respectively, comparison results A1 and A2 are obtained. When the power supply distribution value deviation in comparison result A1 is greater than the preset deviation threshold or the power supply distribution value deviation in comparison result A2 is greater than the preset deviation threshold, it indicates that the power supply distribution value deviation is greater than the preset deviation threshold.

[0123] Step S605: If so, control the first power distribution cabin to perform distribution adjustment operations on the direct current and alternating current of the second power supply to obtain a matching power supply.

[0124] In another aspect, if the power supply distribution value deviation is not greater than the preset deviation threshold, no operation is performed.

[0125] If so, it indicates that the power supply distribution value deviation is greater than the preset deviation threshold, indicating that the distribution of the direct current and alternating current provided by the current second power supply does not meet the power supply type requirements of all current load nodes. Therefore, distribution adjustment operations need to be performed on the direct current and alternating current in the second power supply. Among them, a DC / AC converter and an AC / DC converter are provided in the incoming line cabinet, which can convert part of the direct current in the second power supply into direct current or convert part of the alternating current into direct current, so as to obtain a matching power supply.

[0126] Exemplarily, the DC power of the second power supply is 1200W, and the AC power is 1800W. The total DC power of all load nodes is 700W, and the total AC power is 2100W. Part of the DC power is converted into AC power through a DC / AC converter so that the AC power reaches at least 2100W. Specifically, the excess (1200W - 700W) = 500W of the DC power is efficiently converted through the DC / AC converter. Considering a conversion efficiency of 90%, the actually convertible AC power is 500W × 0.9 = 450W, making the AC power become 2250W, thus meeting the power supply requirement of 2100W for AC power and still retaining a certain power redundancy, thereby obtaining a matching power supply with a DC power of 700W and an AC power of 2250W.

[0127] Step S606: Control the first power distribution cabin to supply power to the load nodes using the matching power supply.

[0128] Among them, the first power distribution cabin has several feeder cabinets, and each load node is connected to a single feeder cabinet. After obtaining the matching power supply, the matching power supply is allocated according to the power type demand information of the load nodes, and power is supplied to the corresponding load nodes through the feeder cabinets.

[0129] By adopting the above technical solution, by obtaining the distribution values of the DC power and AC power of the second power supply and combining the power type demand information of all current load nodes, calculating the power supply distribution value deviation, and when the power supply distribution deviation is greater than the preset deviation threshold, by adjusting the distribution ratio of the DC power and AC power of the second power supply, it is ensured that different types of load nodes can obtain matching power supply resources, improving the adaptability of the second power supply.

[0130] In the following embodiments, after performing the distribution adjustment operation on the AC power and DC power of the second power supply, there are still cases where the matching power supply cannot meet the power type demands of all load nodes. To improve this problem, the embodiments of the present application provide a backup power supply distribution method. Refer to Figure 7 , this method includes: Step S701: Obtain the load nodes that cannot be matched with the matching power supply to obtain unmatched nodes.

[0131] After executing step S606, obtain the power on the corresponding feeder cabinets of each load node. If there is a situation where it does not match the required power of the load node, mark this load node, thereby obtaining unmatched nodes.

[0132] Step S702: Obtain power supply information according to the power type demand information of the unmatched nodes.

[0133] The power supply information is represented as the difference between the power of the matching node at the current moment and the required power. Exemplarily, after using a matching power supply to supply power to a load node, there are load nodes a, b, and c. The required power supply types of load nodes a, b, and c are all alternating current, and the required powers are 600W, 500W, and 900W respectively. The alternating current power in the matching power supply is 1800W. When distributing power to load nodes a, b, and c through the matching power supply, load node a is allocated 600W, load node b is allocated 500W, and load node c is only allocated 700W. Therefore, the power supply information is that the required power supply type of load node c is alternating current, and the difference between the power at the current moment and the required power is -200W.

[0134] Step S703: Control the first power distribution cabin to connect to the backup power supply.

[0135] The backup power supply is connected to the incoming line cabinet in the first power distribution cabin through a circuit breaker. After executing step S702, by closing the circuit breaker, the first power distribution cabin is connected to the backup power supply. Among them, the backup power supply can be the power supply provided by a generator.

[0136] Step S704: Perform a deployment operation on the backup power supply according to the power supply information to obtain a backup matching power supply that matches the unmatched node.

[0137] According to the difference between the power of the matching node at the current moment and the required power corresponding to the power supply information, the required power value of the backup power supply is obtained, that is, a backup matching power supply that matches the unmatched node is obtained. Among them, in the case where the backup power supply is the power supply provided by a generator, if the required power supply type corresponding to the power supply information is direct current, the power supply provided by the generator can be converted into direct current through an AC / DC converter.

[0138] Exemplarily, the required power supply type of load node c is alternating current, and the difference between the power at the current moment and the required power is -200W. Therefore, at least 200W of electricity needs to be provided by the generator.

[0139] Step S705: Control the first power distribution cabin to use the backup matching power supply to supply power to the unmatched node.

[0140] After obtaining the backup matching power supply that matches the unmatched node, control the feeder cabinet to access the power supply circuit of the backup power supply, so that the power of the unmatched node reaches the required power.

[0141] By adopting the above technical solution, when the second power supply is unable to provide power that meets the power type requirements of all load nodes, the unmatched nodes are obtained, the power supply information is obtained according to the power type requirement information thereof, and the standby power supply is allocated according to the power supply information, so that the standby power supply can be matched with the unmatched nodes to obtain a standby matching power supply. Finally, the standby matching power supply is used to supply power to the unmatched nodes to meet the power supply requirements of the unmatched nodes and ensure the normal operation of all load nodes.

[0142] Based on the same inventive concept, an embodiment of the present application provides a distribution cabin control system, including: An acquisition module, configured to acquire power supply operation parameters; A memory, configured to store the program of the above distribution cabin control method; A processor, the program in the memory can be loaded and executed by the processor and implement the above distribution cabin control method.

[0143] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the above division of each functional module is used as an example. In practical applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working processes of the above-described system, device, and unit can refer to the corresponding processes in the foregoing method embodiments and will not be described herein again.

[0144] An embodiment of the present application provides a computer-readable storage medium, storing a computer program that can be loaded and executed by a processor to implement the distribution cabin control method.

[0145] Computer storage media include, for example: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0146] Based on the same inventive concept, an embodiment of the present application provides an intelligent terminal, including a memory and a processor, and a computer program that can be loaded and executed by the processor to implement the distribution cabin control method is stored on the memory.

[0147] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be allocated to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. For the specific working processes of the system, device, and unit described above, reference can be made to the corresponding processes in the foregoing method embodiments, which will not be elaborated herein.

[0148] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Any feature disclosed in this specification (including the abstract and drawings), unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example of a series of equivalent or similar features.

Claims

1. A control method for a distribution cabin, characterized in that, Including: Real-time collection of the power supply operation parameters of the first power supply path; Generating abnormal diagnosis data for the first power supply path when the power supply operation parameters do not meet the preset operation parameters; According to the abnormal diagnosis data, controlling the disconnection of the first power supply from the first power distribution cabin; Closing the control switch on the connection path to enable the second power supply to supply power to the first power distribution cabin; Adjusting the power supply strategy of the first power distribution cabin according to the load demand of the load node.

2. The control method of a power distribution cabin according to claim 1, characterized in that, The step of adjusting the power supply strategy of the first power distribution cabin according to the load demand of the load node includes: Obtaining the load level of the load node, where the load level includes the first load level, the second load level, and the third load level; Judging whether the second power supply meets the load demands of all the load nodes; If not, generating a power supply list according to the load level; Prioritizing continuous power supply to the load nodes of the first load level according to the power supply list; Performing periodic power supply to the load nodes of the second load level according to the power supply list; Performing delayed power supply to the load nodes of the third load level according to the power supply list.

3. A control method for a power distribution cabin according to claim 2, characterized in that, The step of obtaining the load level of the load node includes: Obtaining the device information of the load node; Obtaining the corresponding device type information, working mode information, and working time period information according to the device information; Performing weighted calculation according to the device type information, the working mode information, and the working time period information to obtain a load score; Matching the load score with the preset level score range to determine the load level corresponding to the load node.

4. The control method of a distribution cabin according to claim 3, wherein The method further includes: Real-time detection of whether the power supply condition of the first power supply meets the preset power supply condition; If so, obtaining the power supply restoration sequence based on the power supply list; When the power supply operation parameters meet the preset operation parameters, controlling the control switch on the connection path to perform an opening operation; Controlling the connection of the first power supply and the first power distribution cabin to be closed; Restoring power supply to the load node according to the power supply restoration sequence and through a soft start method.

5. A control method for a distribution cabin according to claim 4, characterized in that, The method further includes: Before performing the step of controlling the control switch on the connection path to perform an opening operation, controlling the first power distribution cabin to access the standby power supply; Judging whether the standby power supply meets the power supply demands of all the load nodes; If so, performing the first power supply switching step, where the first power supply switching step includes: controlling the first power distribution cabin to use the standby power supply to supply power to the load node according to the power supply restoration sequence, and controlling the first power distribution cabin to stop using the second power supply to supply power to the load node according to the power supply restoration sequence; If not, performing the second power supply switching step, where the second power supply switching step includes: controlling the first power distribution cabin to use the standby power supply to supply power to the load nodes of the first load level, and controlling the first power distribution cabin to stop using the second power supply to supply power to the load nodes of the first load level.

6. The control method of a distribution cabin according to claim 1, characterized in that, The method further includes: Obtaining the distribution values of the direct current and alternating current of the second power supply; Obtain the power type requirement information of all the current load nodes; Obtain the power supply allocation value deviation based on the allocation value and the power type requirement information; Determine whether the power supply allocation value deviation is greater than a preset deviation threshold; If so, control the first power distribution cabin to perform an allocation adjustment operation on the direct current and alternating current of the second power supply to obtain a matching power supply; Control the first power distribution cabin to supply power to the load nodes using the matching power supply.

7. A power distribution cabin control method according to claim 6, characterized in that, The method further includes: Obtain the load nodes that cannot be matched with the matching power supply to obtain unmatched nodes; Obtain power supply information according to the power type requirement information of the unmatched nodes; Control the first power distribution cabin to access the backup power supply; Perform a deployment operation on the backup power supply according to the power supply information to obtain a backup matching power supply that matches the unmatched nodes; Control the first power distribution cabin to supply power to the unmatched nodes using the backup matching power supply.

8. A control system for a power distribution cabin, characterized in that, The system is used to execute the power distribution cabin control method according to any one of claims 1 to 7, and includes: An acquisition module, configured to acquire power supply operation parameters; A memory, configured to store the program of the power distribution cabin control method; A processor, and the program in the memory can be loaded and executed by the processor and implement the power distribution cabin control method.

9. An intelligent terminal, characterized in that, It includes a memory and a processor, and a computer program capable of being loaded and executed by the processor and implementing the method according to any one of claims 1 to 7 is stored on the memory.

10. A computer-readable storage medium, characterized in that, A computer program capable of being loaded and executed by the processor and implementing the method according to any one of claims 1 to 7 is stored.

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