A Flexible Power Outage Handling Method and System for Abnormal Power Outage Pumping Stations in Long-Distance Pipeline Networks

Abstract

The present invention provides a flexible power outage processing method and system for abnormal power outage pump stations in a long-distance pipeline network, which belongs to the field of data processing technology. Specifically, the method and system include: generating multiple flexible shutdown processing schemes based on the shutdown processing durations of different water pumps in the pump station, determining the available shutdown processing schemes and scheme adaptation deviation coefficients in the flexible shutdown processing schemes according to the shutdown processing durations of the water pumps affected by the shutdown in the flexible shutdown processing schemes, and combining the distribution data of the shutdown water pumps in different time periods, obtaining the available adjustment conditions of the water pumps in the relay pump stations excluding the relay pump stations and the load demand of the long-distance pipeline network, and determining the optimal shutdown processing scheme among the available shutdown processing schemes in combination with the historical abnormal power outage data of different relay pump stations and the scheme adaptation deviation coefficients of the available shutdown processing schemes, thereby improving the operation stability of the heating pipeline network.

Description

Technical Field

[0001] The present invention belongs to the technical field of power supply, and in particular relates to a flexible power outage processing method and system for an abnormal power outage pump station in a long-distance pipeline network. Background Art

[0002] In order to improve the scheduling and processing of long-distance heating pipeline networks, the invention patent application CN202411659654.5 "Autonomous driving platform for long-distance pipeline heating systems based on large models and knowledge graphs" is designed to set up an intelligent decision-making unit for simulation analysis based on the digital twin model and call each business large model to output the corresponding business decision results for heating flow, thereby realizing autonomous optimization operation of the long-distance pipeline network.

[0003] However, in order to achieve flow balance control in long-distance pipelines, existing technical solutions often set up multiple pumping stations in the long-distance heating pipeline network. However, at the same time, due to the overly dispersed distribution of different pumping stations, some pumping stations may experience abnormal power outages of circulating pumps due to their own reasons or external power supply reasons. The response of existing long-distance heating pipeline operations to abnormal power outages still relies on manual experience. Existing experience and technology focus on post-processing and lack predictive maintenance based on historical data. In addition, abnormal power outages at some pumping stations will have a significant impact on other pumping stations in the long-distance pipeline network, and may even cause serious water hammer, which poses a great risk to the operating parameters of long-distance heating. Therefore, how to achieve flexible power outage processing for pumping stations that experience abnormal power outages and reduce the impact on the water pumps in the pumping stations and the heating pipeline network has become a technical problem that needs to be solved urgently.

[0004] In order to solve the above technical problems, the present application provides a flexible power outage processing method and system for abnormal power outage pump stations in a long-distance pipeline network. Summary of the Invention

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present application provides a flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network, specifically comprising:

[0007] S1 obtains the fault shutdown reason of the relay pump station in the long-distance pipeline network, and proceeds to the next step if it is determined that the remaining energy storage capacity of the relay pump station cannot meet the requirements based on the shutdown processing duration corresponding to the fault shutdown reason and the remaining energy storage capacity of the energy storage system of the flexible power outage device;

[0008] S2 determines historical fault data of different water pumps in the relay pump station at different associated equipment locations, and determines the water pumps affected by the shutdown in the relay pump station based on the historical fault data;

[0009] S3 generates multiple flexible shutdown processing schemes based on the shutdown processing durations of different water pumps in the relay pump station, and determines available shutdown processing schemes and scheme adaptation deviation coefficients in the flexible shutdown processing schemes according to the shutdown processing durations of the water pumps affected by the shutdown in the flexible shutdown processing schemes and in combination with the distribution data of the shutdown water pumps in different time periods;

[0010] S4 obtains the available adjustment conditions of the water pumps of the relay pumping stations other than the relay pumping station and the load demand of the long-distance pipeline network, and combines the historical abnormal power outage data of different relay pumping stations and the scheme adaptation deviation coefficient of the available shutdown processing schemes to determine the optimal shutdown processing scheme among the available shutdown processing schemes.

[0011] The beneficial effects of the present invention are:

[0012] Based on the shutdown processing duration of the shutdown-affecting water pumps in the flexible shutdown processing scheme and the distribution data of the shutdown water pumps in different time periods, the available shutdown processing schemes in the flexible shutdown processing scheme are determined. This not only avoids the impact of the shutdown processing duration of the shutdown-affecting water pumps in the flexible shutdown processing scheme on the life of the associated equipment of the shutdown-affecting water pumps due to too short a shutdown processing time, but also avoids the impact of the unified shutdown operation of the water pumps in a certain period on the heating pipeline network, realizes the screening of flexible shutdown processing schemes, and lays the foundation for determining the optimal shutdown processing scheme.

[0013] Based on the available regulation conditions of the water pumps of relay pumping stations other than the relay pumping stations and the load demand of the long-distance pipeline network, the historical abnormal power outage data of different relay pumping stations and the scheme adaptation deviation coefficient of the available shutdown processing schemes, the optimal shutdown processing scheme among the available shutdown processing schemes is determined. The regulation range of the water pumps of relay pumping stations other than the relay pumping stations with unexpected power outages and the matching condition with the load demand of the long-distance pipeline network after regulation are fully taken into consideration, and further combined with the abnormal power outage conditions of the relay pumping stations, the reliability of the regulation and scheduling processing of other relay pumping stations is evaluated, which also lays the foundation for generating differentiated shutdown processing schemes according to the regulation and scheduling processing reliability of other relay pumping stations.

[0014] A further technical solution is that the reason for the shutdown of the relay pump station is determined based on the analysis result of the fault alarm signal of the relay pump station, specifically based on the reason for the shutdown corresponding to the fault alarm signal of the relay pump station.

[0015] A further technical solution is that the downtime processing duration corresponding to the fault downtime cause is determined based on an average value of historical downtime processing durations for the fault downtime cause.

[0016] A further technical solution is to determine that the remaining energy storage capacity of the relay pump station cannot meet the requirements, specifically including:

[0017] Determine the maximum operating time of the water pump of the relay pump station when the relay pump station adopts the flexible power outage device based on the remaining energy storage capacity of the energy storage system of the flexible power outage device;

[0018] Based on the maximum working time and the shutdown processing time, it is determined whether the remaining energy storage capacity of the relay pump station meets the requirements.

[0019] A further technical solution is that, when the maximum working time is less than the shutdown processing time, it is determined that the remaining energy storage capacity of the relay pump station does not meet the requirements.

[0020] A further technical solution is that when the remaining energy storage capacity of the relay pump station meets the requirements, the energy storage system of the flexible power outage device is used to maintain power supply until the relay pump station resumes power supply.

[0021] A further technical solution is that the associated equipment positions include the switching devices, capacitors, impellers and motor windings of the water pump's inverter.

[0022] A further technical solution is that the method for determining the optimal shutdown processing solution among the available shutdown processing solutions is:

[0023] Taking the relay pumping stations other than the relay pumping station as the target pumping stations for regulation, and determining the maximum regulation power of the pumps of the different target pumping stations according to the available regulation conditions of the pumps of the different target pumping stations;

[0024] By adjusting the maximum regulating power of the water pumps of the target pumping station at different values, the heat flow rate at the maximum regulating power is determined, and in combination with the load demand of the long-distance pipeline network, the ratio of the heat flow rate at the maximum regulating power to the heat flow rate corresponding to the load demand is determined, and the ratio is used as the load balancing coefficient;

[0025] The historical abnormal power outage data of different adjustment target pumping stations are used to determine the historical abnormal power outage times and power outage risk coefficients of different adjustment target pumping stations. The adjustment matching coefficient is determined according to the product of the average value of the power outage risk coefficients of different adjustment target pumping stations and the load balancing coefficient. Based on the adjustment matching coefficient and the scheme adaptation deviation coefficient of the available shutdown processing schemes, the optimal shutdown processing scheme among the available shutdown processing schemes is determined.

[0026] A further technical solution is that the maximum regulated power is determined according to the maximum operating power of the water pump.

[0027] A further technical solution is that the heat flow rate under the maximum regulated power is determined based on simulation results of the long-distance pipeline network under the maximum regulated power.

[0028] A further technical solution is that the power outage risk coefficient is determined based on the ratio of the number of historical abnormal power outages of the adjustment target pump station to a preset number of power outages.

[0029] A further technical solution is to determine the optimal outage handling solution among the available outage handling solutions based on the adjustment matching coefficient and the solution adaptation deviation coefficient of the available outage handling solutions, specifically including:

[0030] When the adjustment matching coefficient is greater than a preset adjustment matching coefficient threshold, the available shutdown processing solution with the longest average shutdown processing time affecting the water pump is used as the optimal shutdown processing solution;

[0031] When the adjustment matching coefficient is not greater than the preset adjustment matching coefficient threshold, the available shutdown processing solution with the smallest adaptation deviation coefficient of the shutdown solution affecting the water pump is used as the optimal shutdown processing solution.

[0032] On the other hand, an embodiment of the present application provides a computer system on which a computer program is stored. When the computer program is executed in the computer, the computer is caused to execute the above-mentioned flexible power outage processing method for an abnormal power outage pump station in a long-distance pipeline network.

[0033] On the other hand, a computer program product is provided in an embodiment of the present application, which stores instructions. When the instructions are executed by a computer, the computer implements the above-mentioned flexible power outage processing method for an abnormal power outage pump station in a long-distance pipeline network. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

[0035] Figure 1 The present invention is a flow chart of a flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network.

[0036] Figure 2 Flowchart of a method for determining whether a shutdown in a relay pumping station affects water pumps.

[0037] Figure 3 The present invention is a flow chart of a method for determining an available outage processing solution among flexible outage processing solutions.

[0038] Figure 4 Flowchart of a method for determining an optimal outage processing solution among available outage processing solutions. DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0040] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0041] In order to reduce the impact of power outages on water pumps, this application uses an energy storage device to gradually reduce the power supply to the water pump. At the same time, based on the historical abnormal conditions of the water pump, a flexible power outage strategy for the power supply to different water pumps is determined, thereby improving the operating reliability of the water pump in the pumping station.

[0042] Example 1

[0043] To solve the above problems, according to one aspect of the present invention, Figure 1 As shown, a flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network is provided, which specifically includes:

[0044] S1 obtains the fault shutdown reason of the relay pump station in the long-distance pipeline network, and proceeds to the next step if it is determined that the remaining energy storage capacity of the relay pump station cannot meet the requirements based on the shutdown processing duration corresponding to the fault shutdown reason and the remaining energy storage capacity of the energy storage system of the flexible power outage device;

[0045] Determine that the remaining energy storage capacity of the relay pumping station cannot meet the requirements: take the power required by the relay pumping station to maintain normal operation of the water pump as the target power. When the remaining energy storage capacity is greater than the target power, it means that the remaining energy storage capacity of the relay pumping station meets the requirements.

[0046] When the remaining energy storage capacity can meet the electricity demand of the relay pumping station within the shutdown processing time interval, it is determined that the remaining energy storage capacity of the relay pumping station can meet the requirement.

[0047] S2 determines historical fault data of different water pumps in the relay pump station at different associated equipment locations, and determines the water pumps affected by the shutdown in the relay pump station based on the historical fault data;

[0048] The pumps affected by the shutdown can be determined by the pumps with a historical failure count of more than 4 times at the associated equipment location.

[0049] The pump affected by the shutdown is a pump whose number of historical failures is greater than a preset failure number threshold.

[0050] Historical fault data is synchronized in time and space for multi-source heterogeneous data based on a unified timestamp to ensure event correlation. Statistical features (such as mean, variance, and kurtosis) and frequency domain features (such as the FFT (Fast Fourier Transform) spectrum envelope) are extracted from the historical fault data to construct a multidimensional feature vector. This multidimensional feature vector is used as input to determine the fault impact of the water pump immediately shutting down in the event of a power outage. Based on the fault impact, the impact of the shutdown on the water pump is determined.

[0051] Specifically, the multidimensional feature vector is used as an input, and a preset support vector machine (SVM) classification model is used to determine whether the water pump is a shutdown-affected water pump.

[0052] S3 generates multiple flexible shutdown processing schemes based on the shutdown processing durations of different water pumps in the relay pump station, and determines available shutdown processing schemes and scheme adaptation deviation coefficients in the flexible shutdown processing schemes according to the shutdown processing durations of the water pumps affected by the shutdown in the flexible shutdown processing schemes and in combination with the distribution data of the shutdown water pumps in different time periods;

[0053] Available shutdown plans: A shutdown plan in which the shutdown processing time of different shutdown-affecting water pumps is greater than 2 minutes and the average shutdown time of different water pumps is greater than 1 minute. The plan adaptation deviation coefficient is determined based on the product of the average shutdown processing time of different shutdown-affecting water pumps and the reciprocal of the average shutdown time of different water pumps. Specifically, if the average shutdown processing time of different shutdown-affecting water pumps and the average shutdown time of different water pumps are 3 minutes and 2 minutes respectively, then the plan adaptation deviation coefficient is the product of 1 / 3 and 1 / 2, that is, 1 / 6.

[0054] The product of the reciprocal of the average shutdown duration of the shutdown-affecting water pumps in the relay pumping station and the reciprocal of the average shutdown processing duration of different shutdown water pumps is used as the scheme adaptation deviation coefficient, and the flexible shutdown processing scheme with the scheme adaptation deviation coefficient within the preset deviation coefficient range is used as the available shutdown processing scheme.

[0055] S4 obtains the available adjustment conditions of the water pumps of the relay pumping stations other than the relay pumping station and the load demand of the long-distance pipeline network, and combines the historical abnormal power outage data of different relay pumping stations and the scheme adaptation deviation coefficient of the available shutdown processing schemes to determine the optimal shutdown processing scheme among the available shutdown processing schemes.

[0056] The relay pumping stations excluding the relay pumping stations are used as the target pumping stations for regulation, and the maximum regulating power of the water pumps of different target pumping stations is determined. The load balancing coefficient is determined based on the ratio of the heat flow rate under the maximum regulating power to the heat flow rate corresponding to the load demand of the long-distance pipeline network.

[0057] The power outage risk coefficients of different target pumping stations are determined by multiplying the number of historical abnormal power outages of the target pumping station by a preset proportional factor, and the regulation matching coefficient is determined according to the ratio of the average value of the power outage risk coefficients of different target pumping stations to the load balancing coefficient;

[0058] The number of historical abnormal power outages refers to the number of historical power outages caused by equipment failures at the target pumping station under regulation.

[0059] When the adjustment matching coefficient is greater than the preset adjustment matching coefficient threshold, the available shutdown processing scheme with the longest average shutdown processing time of the shutdown affecting the water pump will be used as the optimal shutdown processing scheme; when the adjustment matching coefficient is not greater than the preset adjustment matching coefficient threshold, the available shutdown processing scheme with the smallest adaptation deviation coefficient of the shutdown scheme affecting the water pump will be used as the optimal shutdown processing scheme.

[0060] Furthermore, the reason for the shutdown of the relay pump station is determined based on the analysis result of the fault alarm signal of the relay pump station, specifically based on the reason for the shutdown of the relay pump station corresponding to the fault alarm signal of the relay pump station.

[0061] Specifically, the downtime processing duration corresponding to the fault downtime cause is determined according to the average value of the historical downtime processing durations of the fault downtime cause.

[0062] It should be noted that determining that the remaining energy storage capacity of the relay pump station cannot meet the requirements specifically includes:

[0063] Determine the maximum operating time of the water pump of the relay pump station when the relay pump station adopts the flexible power outage device based on the remaining energy storage capacity of the energy storage system of the flexible power outage device;

[0064] Based on the maximum working time and the shutdown processing time, it is determined whether the remaining energy storage capacity of the relay pump station meets the requirements.

[0065] Furthermore, when the maximum working time is less than the shutdown processing time, it is determined that the remaining energy storage capacity of the relay pump station does not meet the requirements.

[0066] It is understandable that when the remaining energy storage capacity of the relay pump station meets the requirements, the energy storage system of the flexible power outage device is used to maintain power supply until the relay pump station resumes power supply.

[0067] Furthermore, the associated equipment locations include the switching devices, capacitors, impellers and motor windings of the water pump's inverter.

[0068] Specifically, such as Figure 2 As shown, the method for determining whether the shutdown in the relay pump station affects the water pump is:

[0069] Determine the number of historical failures of the water pump at different associated equipment locations using historical failure data of associated equipment locations of the water pump in the relay pump station;

[0070] Determine the fault impact weight coefficients of different associated equipment locations when an external power outage occurs according to the types of the associated equipment locations;

[0071] The abnormal power outage impact value of the water pump is determined based on the sum of the historical fault times and the products of the fault impact weight coefficients at different associated equipment locations, and the abnormal power outage impact value is used to determine whether the water pump is a shutdown-affected water pump.

[0072] Furthermore, the fault impact weight coefficient is determined according to a preset fault impact coefficient corresponding to the type of the associated fault location.

[0073] It should be noted that, when the abnormal power outage impact value of the water pump is greater than a preset power outage impact threshold, the water pump is determined to be a shutdown-affected water pump.

[0074] Optionally, the method for determining whether the shutdown in the relay pump station affects the water pump is:

[0075] S21 determines the number of historical failures of the water pump at different associated equipment locations based on historical failure data of associated equipment locations of the water pump in the relay pump station;

[0076] It should be noted that the number of historical faults is determined based on historical alarm data of the associated equipment of the water pump in the interval period from the last maintenance processing time.

[0077] S22 determines, based on the types of different associated device locations, fault impact weight coefficients of different associated device locations when an external immediate power outage occurs, and determines power outage impact coefficients of different associated device locations based on the product of the number of historical faults at different associated device locations and the fault impact weight coefficients;

[0078] It should be noted that the fault impact weight coefficient of the associated device location when an external power outage occurs is determined according to the type of the associated device location and the impact on the associated device location when an external power outage occurs. Specifically, it can be determined using the pre-defined weight coefficient corresponding to the type of the associated device location.

[0079] S23 determines the abnormal power outage impact value of the water pump by summing the power outage impact coefficients of different associated equipment positions, and determines whether the water pump is a shutdown-affected water pump using the abnormal power outage impact value.

[0080] It should be noted that before entering step S22, the following judgment needs to be further performed:

[0081] S211: When the sum of the number of historical failures of the water pump at different associated equipment locations does not meet the requirement, the water pump in the relay pump station is determined to be a shutdown-affected water pump. When the sum of the number of historical failures of the water pump at different associated equipment locations meets the requirement, the process proceeds to step S212.

[0082] It can be understood that when the sum of the number of historical failures of the water pump at different associated equipment locations is greater than a certain threshold, it can be very clearly determined that the water pump at this time is highly affected by the immediate power outage. Therefore, on this basis, it can be directly determined that it is a shutdown-affected water pump.

[0083] By utilizing the historical fault counts at the associated equipment locations, it is possible to screen out pumps with low operating stability at the associated equipment locations, and this also lays the foundation for further generating differentiated shutdown handling solutions.

[0084] S212 determines, based on the historical fault counts of different associated equipment locations, that there is an associated equipment location whose historical fault count does not meet the requirement, then determines that the water pump in the relay pump station is a shutdown-affected water pump; if there is no associated equipment location whose historical fault count does not meet the requirement, then proceeds to step S213;

[0085] It should be noted that for a water pump with a high number of historical failures at any associated equipment location, its associated equipment location will inevitably suffer secondary damage when handling an unexpected power outage, which may cause it to fail again, making it difficult to meet the operational safety requirements of the water pump.

[0086] In one embodiment, the present application can determine the location of associated equipment whose historical failure times of the water pump do not meet the requirements by setting a threshold value, setting an interval, etc.

[0087] Through the judgment of the above steps, the efficiency of screening and processing of water pumps affected by shutdown is further improved.

[0088] In step S213, if there is no associated device location with a historical fault count within the preset fault count interval, it is determined that the water pump in the relay pump station is not a shutdown-affected water pump. If there is an associated device location with a historical fault count within the preset fault count interval, the process proceeds to step S214.

[0089] It should be noted that when there is an associated equipment location whose historical fault count is within the preset fault count range, the historical fault data at different associated equipment locations are relatively small. Combined with the above judgment, it is determined that the sum of the historical fault counts of different associated equipment is also relatively small, indicating that the water pump is less affected by the immediate power outage.

[0090] For water pumps that are less affected by immediate power outage, even if they are immediately shut down, the impact on the water pumps will not be low. Therefore, they can be directly identified as water pumps that are not affected by the shutdown.

[0091] S214 When the number of associated equipment positions with historical fault times within the preset fault number interval does not meet the requirements, it is determined that the water pump in the relay pump station is a shutdown-affected water pump. When the number of associated equipment positions with historical fault times within the preset fault number interval meets the requirements, proceed to step S22.

[0092] It should be noted that before entering step S23, it is also necessary to determine whether there is an associated equipment location whose power outage impact coefficient does not meet the requirements. If so, it is determined that the water pump in the relay pump station is a shutdown-affected water pump. If not, go to step S23.

[0093] Specifically, such as Figure 3 As shown, the method for determining the available shutdown processing solutions in the flexible shutdown processing solution is:

[0094] Determine the average of the shutdown processing durations of the water pumps affected by the shutdown in the flexible shutdown processing scheme based on the shutdown processing durations of the water pumps affected by the shutdown in the flexible shutdown processing scheme, and use the average of the shutdown processing durations of the water pumps affected by the shutdown as the average of the shutdown durations of the water pumps affected by the shutdown;

[0095] Determine the average downtime of different pumps according to the distribution data of downtime pumps in different time periods;

[0096] Based on the average shutdown duration of the shutdown-affecting water pump and the average shutdown processing duration of different shutdown water pumps, the scheme adaptation deviation coefficient of the flexible shutdown processing scheme is determined, and based on the scheme adaptation deviation coefficient, it is determined whether the flexible shutdown processing scheme is an available shutdown processing scheme.

[0097] Furthermore, the method for determining the solution adaptation deviation coefficient of the flexible shutdown processing solution is as follows:

[0098] Based on the average downtime of the water pump affected by the shutdown, a preset mapping relationship is used to determine a preset influence coefficient of the water pump affected by the shutdown under the average downtime;

[0099] Determining a preset impact coefficient of the stopped water pump using a preset mapping relationship based on the average of the shutdown processing durations of different stopped water pumps;

[0100] The scheme adaptation deviation coefficient of the flexible shutdown scheme is determined based on the sum of the preset influence coefficient of the shutdown-influencing water pump under the average shutdown duration and the preset influence coefficient of the shutdown water pump.

[0101] Specifically, the scheme adaptation deviation coefficient of the flexible shutdown scheme ranges from 0 to 1. When the scheme adaptation deviation coefficient of the flexible shutdown scheme is greater than a preset adaptation deviation coefficient threshold, it is determined that the flexible shutdown scheme does not belong to the available shutdown processing scheme.

[0102] Optionally, the method for determining the available shutdown processing solutions in the flexible shutdown processing solution is:

[0103] Determine the average of the shutdown processing durations of the water pumps affected by the shutdown in the flexible shutdown processing scheme based on the shutdown processing durations of the water pumps affected by the shutdown in the flexible shutdown processing scheme, and use the average of the shutdown processing durations of the water pumps affected by the shutdown as the average of the shutdown durations of the water pumps affected by the shutdown;

[0104] Determine the shutdown processing durations of different shutdown water pumps based on the distribution data of shutdown water pumps in different time periods, and determine the shutdown impact values of different shutdown water pumps based on the shutdown processing durations of different shutdown water pumps;

[0105] Based on the average shutdown duration of the shutdown-affecting water pumps and the shutdown impact values of different shutdown water pumps, the scheme adaptation deviation coefficient of the flexible shutdown processing scheme is determined, and based on the scheme adaptation deviation coefficient, it is determined whether the flexible shutdown processing scheme is an available shutdown processing scheme.

[0106] It should be noted that before determining the distribution data of the shutdown water pumps, it is also necessary to first determine whether the shutdown processing time of the shutdown-affecting water pumps meets the requirements. When there are shutdown-affecting water pumps whose shutdown processing time is less than the preset shutdown processing time threshold or the average shutdown time of the shutdown-affecting water pumps does not meet the requirements, they will be directly identified as not belonging to the available shutdown processing plan.

[0107] To determine whether the average downtime meets the requirements, this can be achieved by setting a threshold or other methods.

[0108] The above-mentioned flexible shutdown solution has a high impact on the water pump, so it cannot be used as an available shutdown solution.

[0109] For example, before determining the scheme adaptation deviation coefficient, it is also necessary to judge whether the shutdown-affecting water pumps and the shutdown impact of the shutdown water pumps meet the requirements. When the average shutdown processing time of different shutdown water pumps does not meet the requirements or when the number of shutdown-affecting water pumps with shutdown impact values within the preset impact value range does not meet the requirements, it is directly determined that it does not belong to the available shutdown processing scheme.

[0110] If the shutdown processing time of the shutdown water pump is relatively short or the shutdown affects a large number of water pumps, that is, if the number of shutdown-affected water pumps whose shutdown impact values are within the preset impact value range is relatively large, it can be directly determined that it does not belong to the available shutdown processing solution.

[0111] It is understandable that when determining whether the average of the shutdown processing duration meets the requirements or whether the number of shutdown-affected water pumps within the preset impact value range meets the requirements, this can be achieved by combining threshold setting and other methods.

[0112] Specifically, such as Figure 4 As shown, the method for determining the optimal shutdown processing solution among the available shutdown processing solutions is:

[0113] Taking the relay pumping stations other than the relay pumping station as the target pumping stations for regulation, and determining the maximum regulation power of the pumps of the different target pumping stations according to the available regulation conditions of the pumps of the different target pumping stations;

[0114] By adjusting the maximum regulating power of the water pumps of the target pumping station at different values, the heat flow rate at the maximum regulating power is determined, and in combination with the load demand of the long-distance pipeline network, the ratio of the heat flow rate at the maximum regulating power to the heat flow rate corresponding to the load demand is determined, and the ratio is used as the load balancing coefficient;

[0115] The historical abnormal power outage data of different adjustment target pumping stations are used to determine the historical abnormal power outage times and power outage risk coefficients of different adjustment target pumping stations. The adjustment matching coefficient is determined according to the ratio of the average value of the power outage risk coefficients of different adjustment target pumping stations to the load balancing coefficient. Based on the adjustment matching coefficient and the scheme adaptation deviation coefficient of the available shutdown processing schemes, the optimal shutdown processing scheme among the available shutdown processing schemes is determined.

[0116] Furthermore, the maximum regulated power is determined according to the maximum operating power of the water pump.

[0117] It should be noted that the heat flow rate under the maximum regulated power is determined based on the simulation results of the long-distance pipeline network under the maximum regulated power.

[0118] It can be understood that the power outage risk coefficient is determined based on the ratio of the historical abnormal power outage times of the adjustment target pump station to the preset power outage times.

[0119] It should be noted that, based on the adjustment matching coefficient and the solution adaptation deviation coefficient of the available shutdown processing solutions, determining the optimal shutdown processing solution among the available shutdown processing solutions specifically includes:

[0120] When the adjustment matching coefficient is greater than a preset adjustment matching coefficient threshold, the available shutdown processing solution with the longest average shutdown processing time affecting the water pump is used as the optimal shutdown processing solution;

[0121] When the adjustment matching coefficient is not greater than the preset adjustment matching coefficient threshold, the available shutdown processing solution with the smallest adaptation deviation coefficient of the shutdown solution affecting the water pump is used as the optimal shutdown processing solution.

[0122] Example 2

[0123] On the other hand, an embodiment of the present application provides a computer system on which a computer program is stored. When the computer program is executed in the computer, the computer is caused to execute the above-mentioned flexible power outage processing method for an abnormal power outage pump station in a long-distance pipeline network.

[0124] Example 3

[0125] On the other hand, a computer program product is provided in an embodiment of the present application, which stores instructions. When the instructions are executed by a computer, the computer implements the above-mentioned flexible power outage processing method for an abnormal power outage pump station in a long-distance pipeline network.

[0126] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on specific circumstances.

[0127] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0128] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0129] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible in the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network, characterized in that: Specifically include: Obtaining the cause of a fault shutdown of a relay pump station in the long-distance pipeline network, and proceeding to the next step if it is determined that the remaining energy storage capacity of the relay pump station cannot meet the requirements based on the shutdown processing duration corresponding to the fault shutdown cause and the remaining energy storage capacity of the energy storage system of the flexible power outage device; Determine historical fault data of different water pumps at different associated equipment locations in the relay pump station, and determine the water pumps affected by the shutdown in the relay pump station based on the historical fault data; Generate multiple flexible shutdown processing schemes based on the shutdown processing durations of different water pumps in the relay pump station, determine available shutdown processing schemes and scheme adaptation deviation coefficients in the flexible shutdown processing schemes based on the shutdown processing durations of the water pumps affected by the shutdown in the flexible shutdown processing schemes and in combination with distribution data of the shutdown water pumps in different time periods; Obtaining the available adjustment conditions of the water pumps of relay pumping stations other than the relay pumping station and the load demand of the long-distance pipeline network, and determining the optimal outage handling solution among the available outage handling solutions based on historical abnormal power outage data of different relay pumping stations and solution adaptation deviation coefficients of the available outage handling solutions; The associated equipment positions include the switching devices, capacitors, impellers and motor windings of the water pump's inverter.

2. The flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network according to claim 1, characterized in that: The reason for the shutdown of the relay pump station is determined based on the analysis result of the fault alarm signal of the relay pump station, specifically based on the reason for the shutdown corresponding to the fault alarm signal of the relay pump station.

3. The flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network according to claim 2, characterized in that: The downtime processing duration corresponding to the fault downtime cause is determined according to the average value of the historical downtime processing durations of the fault downtime cause.

4. The flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network according to claim 1, characterized in that: Determining that the remaining energy storage capacity of the relay pump station cannot meet the requirements includes: Determine the maximum operating time of the water pump of the relay pump station when the relay pump station adopts the flexible power outage device based on the remaining energy storage capacity of the energy storage system of the flexible power outage device; Based on the maximum working time and the shutdown processing time, it is determined whether the remaining energy storage capacity of the relay pump station meets the requirements.

5. The flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network according to claim 1, characterized in that: When the remaining energy storage capacity of the relay pump station meets the requirements, the energy storage system of the flexible power outage device is used to maintain power supply until the relay pump station resumes power supply.

6. The flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network according to claim 1, characterized in that: The method for determining whether the shutdown in the relay pump station affects the water pump is as follows: Determine the number of historical failures of the water pump at different associated equipment locations using historical failure data of associated equipment locations of the water pump in the relay pump station; Determine the fault impact weight coefficients of different associated equipment locations when an external power outage occurs according to the types of the associated equipment locations; The abnormal power outage impact value of the water pump is determined based on the sum of the historical fault times and the products of the fault impact weight coefficients at different associated equipment locations, and the abnormal power outage impact value is used to determine whether the water pump is a shutdown-affected water pump.

7. The flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network according to claim 1, characterized in that: When the abnormal power outage impact value of the water pump is greater than a preset power outage impact threshold, the water pump is determined to be a shutdown-affected water pump.

8. The flexible power outage handling method for an abnormal power outage pump station in a long-distance pipeline network according to claim 1, characterized in that: The method for determining whether the shutdown in the relay pump station affects the water pump is as follows: Determining the number of historical failures of the water pump at different associated equipment locations based on historical failure data of the associated equipment locations of the water pump in the relay pump station, and determining that the water pump in the relay pump station is a shutdown-affected water pump when the sum of the number of historical failures of the water pump at different associated equipment locations does not meet a requirement; When the sum of the historical failure times of the water pump at different associated equipment locations meets the requirements: Based on the historical fault counts of different associated equipment locations, when it is determined that there is an associated equipment location whose historical fault counts do not meet the requirements: the water pump in the relay pump station is determined to be a shutdown-affected water pump; When there is no associated device location whose historical fault count does not meet the requirement: When there is no associated device location with a historical fault count within the preset fault count range, it is determined that the water pump in the relay pump station is not a shutdown-affected water pump; When there is an associated device location with a historical fault count within the preset fault count range: Obtaining the number of associated equipment positions whose historical fault counts are within a preset fault count interval, and determining that the water pump in the relay pump station is a shutdown-affected water pump when the number of associated equipment positions whose historical fault counts are within the preset fault count interval does not meet the requirement; When the number of associated device locations with historical fault counts within the preset fault count range meets the requirements: Determine, based on the types of different associated equipment locations, fault impact weight coefficients of different associated equipment locations when an external power outage occurs immediately; determine the power outage impact coefficients of different associated equipment locations based on the product of the number of historical faults at different associated equipment locations and the fault impact weight coefficients; and when there is an associated equipment location whose power outage impact coefficient does not meet the requirements, determine that the water pump in the relay pump station is a shutdown-affected water pump; When there are no associated equipment locations where the power outage impact coefficient does not meet the requirements: The abnormal power outage impact value of the water pump is determined by summing the power outage impact coefficients of different associated equipment positions, and the abnormal power outage impact value is used to determine whether the water pump is a shutdown-affected water pump.

9. A computer system having a computer program stored thereon, wherein when the computer program is executed in a computer, Instruct a computer to execute the flexible power outage processing method for an abnormal power outage pump station in a long-distance pipeline network as described in any one of claims 1-8.

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