A simulation analysis method, system and device of a power device and a storage medium

Abstract

The application relates to a simulation analysis method, system and device of power equipment and a storage medium, and comprises the following steps: obtaining the equipment types and power information values of multiple power equipment in a target area; constructing multiple simulation power equipment and a simulation power grid model according to the equipment types and power information values; the simulation power equipment is configured with an input port and an output port; the simulation power grid model comprises an input port and an output port, and the input port of the simulation power grid model is the input port of any simulation power equipment; in a simulation analysis process, the power information values and the current time of the multiple power equipment are acquired online in real time, and the power information values and the current time are respectively input into the input ports of the corresponding simulation power equipment; and the output port of the simulation power grid model outputs a dynamic early warning real-time graph. Through the application, the technical requirements of real-time, hybrid simulation and online simulation can be met, the time synchronization problem is solved, and real-time data exchange is realized.

Description

Technical Field

[0001] This invention relates to the field of power system simulation technology, specifically to a simulation analysis method, system, device, and storage medium for power equipment. Background Technology

[0002] With the rapid development of new smart grid technologies, the traditional power grid has gradually evolved into an increasingly complex network, which also brings new challenges to the safe and stable operation of the power system. The widespread application of PMU (phasor measurement unit) and the establishment of WAMS (Wide Area Measurement System) have provided new methods for monitoring, protecting, dispatching and controlling the power system, while also placing higher demands on the power system communication system.

[0003] Power system simulation has always been an essential and fundamental tool for power system safety and stability analysis and power system operation planning. The difference between online and offline power system simulation lies in the source of the simulation data. Offline simulation data consists of manually defined data on various operating modes, and simulations are performed based on anticipated operating conditions. Online simulation, on the other hand, uses online operating data from the dispatch automation system, and simulations are performed based on actual operating conditions. Furthermore, online simulation can be used for predictive accident analysis. By scanning and analyzing a large number of predicted accidents, faults with potential safety hazards can be identified. It can also be used for early warning and handling based on ultra-real-time simulation.

[0004] Currently, when simulating power distribution automation systems, a simulation model of the power system is first established, and then a connection is established between the simulation system and the actual power distribution automation terminal. The performance of the power system is evaluated based on the response of the power distribution automation terminal. With the development of power systems, there is a technical demand for real-time, hybrid, and online simulation in power system simulation technology. However, existing power system simulation platforms cannot solve the problem of time synchronization and are difficult to exchange data in real time. Summary of the Invention

[0005] The purpose of this invention is to propose a simulation analysis method, system, device, and storage medium for power equipment, which meets the technical requirements of real-time, hybrid simulation, and online simulation, solves the problem of time synchronization, and realizes real-time data exchange.

[0006] To achieve the above objectives, embodiments of the present invention propose a simulation analysis method for power equipment, comprising the following steps:

[0007] Obtain the equipment type and power information values ​​of multiple power devices within the target area;

[0008] Multiple simulated power equipment and simulated power grid models are constructed based on the equipment type and power information value; the simulated power equipment is configured with input ports and output ports; the input port of the simulated power grid model is the input port of any simulated power equipment, and the output port of the simulated power grid model is a dynamic early warning real-time diagram;

[0009] During the simulation analysis, the power information values ​​and current time of the multiple power devices are acquired online in real time, and the power information values ​​and current time are input into the corresponding input ports of the simulated power devices.

[0010] Preferably, the power information values ​​include the power equipment output frequency and output load.

[0011] Preferably, the simulated power grid model is constructed in the following manner:

[0012] Obtain the power supply relationship of multiple power devices within the target area, and determine the underlying simulated power devices based on the power supply relationship; the underlying simulated power devices are the power supply side power devices.

[0013] Based on the output of the underlying simulated power equipment, an upper-level simulated power equipment is constructed to obtain a multi-layered simulated power equipment;

[0014] The hierarchical transmission channel is constructed based on the multi-layer simulated power equipment;

[0015] A simulated power grid model is obtained based on the hierarchical transmission channels and the multi-layered simulated power equipment.

[0016] Preferably, the output port of the lower-level simulated power device is adapted to at least one input port of the upper-level simulated power device.

[0017] Preferably, the method further includes:

[0018] During the simulation analysis, the simulated power grid model receives the output frequency and output load of multi-layer simulated power equipment, and generates a multi-dimensional dynamic early warning real-time map based on the output frequency and output load of the multi-layer simulated power equipment; when the output frequency of the simulated power equipment exceeds the early warning average line, the simulated power equipment is marked, and the upper-layer simulated power equipment associated with the simulated power equipment is also marked;

[0019] The multidimensional dimension includes at least time, the output frequency of the simulated power equipment, and the output load of the simulated power equipment. The dynamic early warning real-time graph is equipped with at least one early warning average line, which is the average value of the output frequency of all the simulated power equipment in each layer.

[0020] Embodiments of the present invention also propose a simulation analysis system for power equipment, comprising:

[0021] The information acquisition unit is used to acquire the equipment type and power information value of multiple power devices within the target area;

[0022] The simulation construction unit is used to construct multiple simulated power devices and simulated power grid models based on the device type and power information values; the simulated power devices are configured with input ports and output ports; the simulated power grid model includes input ports and output ports, and the input port of the simulated power grid model is the input port of any simulated power device;

[0023] The simulation analysis unit is used to acquire the power information values ​​and current time of the multiple power devices online in real time during the simulation analysis process, and input the power information values ​​and current time into the corresponding input ports of the simulated power devices. The output port of the simulated power grid model outputs a dynamic early warning real-time diagram.

[0024] Preferably, the simulation construction unit is specifically used for:

[0025] Obtain the power supply relationship of multiple power devices within the target area, and determine the underlying simulated power devices based on the power supply relationship; the underlying simulated power devices are the power supply side power devices.

[0026] Based on the output of the underlying simulated power equipment, an upper-level simulated power equipment is constructed to obtain a multi-layered simulated power equipment;

[0027] The hierarchical transmission channel is constructed based on the multi-layer simulated power equipment;

[0028] A simulated power grid model is obtained based on the hierarchical transmission channels and the multi-layered simulated power equipment.

[0029] Preferably, the power information values ​​include the power equipment output frequency and output load;

[0030] The simulation analysis unit is specifically used for:

[0031] During the simulation analysis, the simulated power grid model is used to receive the output frequency and output load of multi-layer simulated power equipment, and generate a multi-dimensional dynamic early warning real-time map based on the output frequency and output load of the multi-layer simulated power equipment; when the output frequency of the simulated power equipment exceeds the early warning average line, the simulated power equipment is marked, and the upper-layer simulated power equipment associated with the simulated power equipment is also marked;

[0032] The multidimensional dimension includes at least time, the output frequency of the simulated power equipment, and the output load of the simulated power equipment. The dynamic early warning real-time graph is equipped with at least one early warning average line, which is the average value of the output frequency of all the simulated power equipment in each layer.

[0033] Embodiments of the present invention also propose a simulation analysis apparatus for power equipment, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements a simulation analysis method for power equipment as described above.

[0034] Embodiments of the present invention also provide a computer-readable storage medium comprising a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to perform a simulation analysis method for power equipment as described above.

[0035] The embodiments of the present invention have the following beneficial effects:

[0036] (1) The multi-level simulation power grid model with different combinations of variables can display the dynamic changes of power equipment at different levels and can retrieve different output data of power equipment under the same variable category;

[0037] (2) By dividing the multi-level simulation power grid model, the power equipment with power supply and distribution relationship is divided into the same category, and the power equipment associated with the warning is determined by obtaining the curves of the first and last connections in the dynamic warning diagram.

[0038] Other features and advantages of the present invention will be set forth in the following detailed description. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a flowchart of a simulation analysis method for power equipment in one embodiment of the present invention;

[0041] Figure 2 This is an example diagram of the dynamic early warning real-time diagram in one embodiment of the present invention;

[0042] Figure 3 This is an example diagram illustrating the visualization of the simulated power grid model in one embodiment of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100 - First layer dynamic curve; 101 - Second layer dynamic curve; 102 - Third layer dynamic curve; 103 - Hierarchical transmission channel; 104 - Warning moving average. Detailed Implementation

[0045] The various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. Furthermore, numerous specific details are set forth in the following detailed embodiments to better illustrate the invention. Those skilled in the art will understand that the invention can be practiced without certain specific details. In some instances, means well known to those skilled in the art have not been described in detail in order to highlight the spirit of the invention.

[0046] See Figure 2 The present invention provides a simulation analysis method for power equipment, comprising the following steps:

[0047] Step S1: Obtain the equipment type and power information values ​​of multiple power devices within the target area;

[0048] Step S2: Construct multiple simulated power equipment and simulated power grid models based on the equipment type and power information value; the simulated power equipment is configured with input ports and output ports; the input port of the simulated power grid model is the input port of any simulated power equipment, and the output port of the simulated power grid model is a dynamic early warning real-time diagram;

[0049] Further, step S2 includes:

[0050] Obtain the power supply relationship of multiple power devices within the target area, and determine the underlying simulated power devices based on the power supply relationship; the underlying simulated power devices are the power supply side power devices.

[0051] Based on the output of the underlying simulated power equipment, an upper-level simulated power equipment is constructed to obtain a multi-layered simulated power equipment;

[0052] The hierarchical transmission channel is constructed based on the multi-layer simulated power equipment;

[0053] A simulated power grid model is obtained based on the hierarchical transmission channels and the multi-layered simulated power equipment.

[0054] Specifically, in this embodiment, simulated power equipment is displayed through text, icons, two-dimensional / three-dimensional models, integrated models, etc., and different simulated power equipment in different levels is distinguished by color, pictographs, etc. The framework in the simulated power model includes, but is not limited to, using space, lines, etc. to divide each level. In this embodiment, lines are preferred to distinguish each level, and text is used to identify each simulated power equipment.

[0055] It is worth noting that in multi-level simulation models, simulation equipment with hierarchical transmission channels... Figure 2In the dynamic visualization curve graph, the hierarchical curves are connected end to end. In this embodiment, it is preferred to show a form in which the beginning and end are connected.

[0056] Furthermore, the power information values ​​include the power equipment output frequency and output load;

[0057] Furthermore, the output port of the lower-level analog power device is adapted to at least one input port of the upper-level analog power device;

[0058] In this embodiment, output power-sampling period is selected as the variable feature of the dynamic early warning real-time diagram. However, the present invention includes, but is not limited to, using one of the following as the sole variable value of the dynamic early warning real-time diagram: power output value EG, power loss value PL, transmission range value RAL, and power supply and distribution transmission path PSDT. The power output value EG is the power value of the power equipment obtained by the power monitoring unit at the output end of the power equipment. For existing power equipment without a power monitoring unit, a power monitoring unit can be added. The power loss value PL is the power loss difference between the output end and the input end of the power equipment, which is calculated by collecting the charge values ​​at the input end and the output end. The transmission range value RAL is the power transmission distance of the power equipment, that is, the distance between the input end and the output end of the power equipment. The power supply and distribution transmission path PSDT includes the order in which each power equipment is used by the user under the power supply and distribution path. If the power supply is mainly urban, then the substation is the first; if the power consumption is mainly urban, then the rectifier is the first.

[0059] Step S3: During the simulation analysis, the power information values ​​and current time of the multiple power devices are acquired online in real time, and the power information values ​​and current time are input into the corresponding input ports of the simulated power devices.

[0060] Furthermore, step S3 also includes:

[0061] During the simulation analysis, the simulated power grid model receives the output frequency and output load of multi-layer simulated power equipment, and generates a multi-dimensional dynamic early warning real-time map based on the output frequency and output load of the multi-layer simulated power equipment; when the output frequency of the simulated power equipment exceeds the early warning average line, the simulated power equipment is marked, and the upper-layer simulated power equipment associated with the simulated power equipment is also marked;

[0062] The multidimensional dimension includes at least time, the output frequency of the simulated power equipment, and the output load of the simulated power equipment. The dynamic early warning real-time graph is equipped with at least one early warning average line, which is the average value of the output frequency of all the simulated power equipment in each layer.

[0063] In summary, the method of this embodiment divides the power equipment in the region into levels according to user needs, and performs visualization monitoring from multiple dimensions simultaneously, such as monitoring power equipment at each level, monitoring power equipment at multiple levels, and monitoring power supply relationships between multiple levels, to achieve multi-branch early warning of the simulation model. The multi-branch includes, but is not limited to, power equipment at a single level and power equipment with transmission channels between multiple levels.

[0064] Embodiments of the present invention also propose a simulation analysis system for power equipment, comprising:

[0065] The information acquisition unit is used to acquire the equipment type and power information value of multiple power devices within the target area;

[0066] A simulation construction unit is used to construct multiple simulated power devices and simulated power grid models based on the device type and power information values; the simulated power devices are configured with input ports and output ports; the simulated power grid model includes input ports and output ports, and the input ports of the simulated power grid model are the input ports of any simulated power device; and

[0067] The simulation analysis unit is used to acquire the power information values ​​and current time of the multiple power devices online in real time during the simulation analysis process, and input the power information values ​​and current time into the corresponding input ports of the simulated power devices. The output port of the simulated power grid model outputs a dynamic early warning real-time diagram.

[0068] Furthermore, the simulation construction unit is specifically used for:

[0069] Obtain the power supply relationship of multiple power devices within the target area, and determine the underlying simulated power devices based on the power supply relationship; the underlying simulated power devices are the power supply side power devices.

[0070] Based on the output of the underlying simulated power equipment, an upper-level simulated power equipment is constructed to obtain a multi-layered simulated power equipment;

[0071] The hierarchical transmission channel is constructed based on the multi-layer simulated power equipment;

[0072] A simulated power grid model is obtained based on the hierarchical transmission channels and the multi-layered simulated power equipment.

[0073] Furthermore, the power information values ​​include the power equipment output frequency and output load;

[0074] The simulation analysis unit is specifically used for:

[0075] During the simulation analysis, the simulated power grid model is used to receive the output frequency and output load of multi-layer simulated power equipment, and generate a multi-dimensional dynamic early warning real-time map based on the output frequency and output load of the multi-layer simulated power equipment; when the output frequency of the simulated power equipment exceeds the early warning average line, the simulated power equipment is marked, and the upper-layer simulated power equipment associated with the simulated power equipment is also marked;

[0076] The multidimensional dimension includes at least time, the output frequency of the simulated power equipment, and the output load of the simulated power equipment. The dynamic early warning real-time graph is equipped with at least one early warning average line, which is the average value of the output frequency of all the simulated power equipment in each layer.

[0077] The simulation analysis unit includes an acquisition unit, a data processing unit, and a visualization unit.

[0078] The acquisition unit is used to acquire the output frequency and output load of the power equipment in the area to be monitored;

[0079] The acquisition unit is an auxiliary device for monitoring, measuring, controlling, protecting, and regulating power equipment, including measuring instruments, control and signaling devices, specifically electronic voltmeters, ammeters, AC ammeters, and various types of switchgear. It includes, but is not limited to, devices that acquire power information from power equipment via probes, chips, communication units, and displays, and synchronously measure data via communication units; alternatively, a synchronous phasor measurement unit can be directly selected.

[0080] The data processing unit is used to divide the power equipment in the area to be monitored into a multi-level power grid simulation model, construct the power transmission channel between the multi-levels, and use a single variable between the power equipment as the standard for dividing the levels.

[0081] The working principle of the data processing unit includes, but is not limited to, building a simulation of power equipment in space, using the simulation as the underlying framework, i.e., the simulation as the bottom layer simulation, selecting a specific number of power devices based on the virtual power data provided by the computer, and associating the power data with the simulation. Based on the determined variables, the number of bottom layer simulations is determined sequentially, and any excess simulations are listed as upper layer simulations. Since the number of layers determines the number of simulated dynamic curves, and the number of dynamic curves is proportional to the warning threshold, and the warning threshold is proportional to the warning accuracy, after determining the number of layers and bottom layer simulations, a transmission channel is established between the layers. The number of bottom layer simulations is proportional to the amount of power equipment put into use in the area, and the number of bottom layer simulations is proportional to the power monitoring accuracy of the power grid in that area.

[0082] The working principle of the transmission channel between simulation objects includes: in virtual space, after inputting coordinate positions to mark the vertices or bottom surfaces of the simulation objects, the size and shape of the simulation objects are further defined to obtain the simulated power equipment.

[0083] Obtain the bottom and top surfaces of two related simulation objects. After determining the shape of the transmission channel on the bottom and top surfaces, connect the beginning and end by determining the coordinates of the beginning and end positions of the transmission channel. This includes, but is not limited to, connecting channels constructed with the same simulation material as the simulation objects, which are used to identify and distinguish the relationships between other simulation objects.

[0084] The transmission channel can acquire simulation data provided by the computer virtual system. One end of the transmission channel is the output power data of the simulation object, and the other end is the input power data of the associated simulation object. The power grid simulation model can obtain the virtual power data difference between two associated simulation objects by clicking on the transmission channel.

[0085] Each simulation body contains a large amount of virtual time-series data. When the dynamic curve is generated, the time-series data in the simulation body is exported to the sequence list by sending a data export command after the specified sequence number of the simulation body is retrieved. The data is then pre-stored in the background of the dynamic early warning chart. The background retrieves the sequence list and matches the power output values ​​in the sequence list with the power output values ​​of the vertical axis according to the time period of the horizontal axis. The power output values ​​of the simulated power equipment are retrieved and arranged in time order to form a dynamic curve.

[0086] It is worth noting that the data processing unit can be directly configured with a database. By directly retrieving the pre-built simulation objects from the database, the hierarchical classification and connection channels of each simulation object can be constructed. The database includes GIS models, transformer models, reactor models, rectifier models, switchgear models, substation models, etc. After selecting the corresponding model, the user can input the model parameters to achieve customized adaptation of the model in the database and match it with the actual power equipment in the area to be simulated.

[0087] Please refer to Figure 2 In this embodiment, the power output value EG - time t is selected as the variable value of the dynamic early warning real-time graph, where time t is the sampling period, i.e., the sampling time for obtaining the output value of the power equipment. Figure 2The diagram displays state graphs of dynamic curves at different levels, including dynamic curve 100 (first level), dynamic curve 101 (second level), and dynamic curve 102 (third level). Each dynamic curve represents the dynamic energy output value of the simulated power equipment within that level over the cumulative sampling period. The dynamic curves of simulated power equipment with transmission channels between levels are nearly connected because their output values ​​are similar and there is no conversion or consumption from other power equipment. The dynamic early warning graph allows for a clear visual identification of the level to which the simulated power equipment belongs and an understanding of the variable range within which the simulated power equipment operates. For example, in... Figure 2 From this, we can see that the power output value EG of the third-level simulated power equipment is much smaller than the power output value EG of the first-level simulated power equipment.

[0088] Figure 2 The warning moving averages shown are all average values ​​of the power output EG in the hierarchy. Through the dynamic warning moving averages, the time interval when the simulated power equipment is overloaded can be intuitively obtained, and timely adjustments can be made according to the output of the simulated power equipment itself. For example, the overloaded power equipment can be replaced, or the output of the overloaded power equipment can be transferred to the power equipment in the same hierarchy, so that the simulated power equipment in the same hierarchy can share its power input.

[0089] The intuitive hierarchical classification system can identify normally operating electrical equipment and overloaded electrical equipment, laying the foundation for subsequent effective replacement and coordinated power distribution tasks.

[0090] Figure 2 In this model, the dynamic curves of individual simulated power equipment, acting as a hierarchical transmission channel, exhibit separate dynamic change regions. It's worth noting that these independent simulated power equipment dynamic curves decrease as the hierarchy becomes more refined; the more hierarchical levels, the more interconnected power equipment is generated. This allows for providing users with more alternative power supply and distribution solutions during power supply and distribution.

[0091] Figure 3 In the simulation, it can be clearly seen that 500kV transformers, boilers, AC high-voltage distribution branches, substations, etc. belong to the simulated power equipment in the first layer of the simulated power grid model; rectifiers, AC rectifiers, overhead bare wires, GW switches, DW circuit breakers, high-voltage switchgear, iron towers, etc. belong to the simulated power equipment in the second layer of the simulated power grid model; and battery banks, GGD switchgear, DC power supplies, GN switches, ZN circuit breakers, etc. belong to the simulated power equipment in the third layer of the simulated power grid model.

[0092] Figure 3 In the simulation, the power equipment with transmission channels includes GN switch-rectifier-AC high voltage distribution branch; ZN circuit breaker-DW circuit breaker-AC high voltage distribution branch; all of the above are power equipment that are interconnected in the process of power transmission.

[0093] Therefore, when any one of the power devices experiences overload or overload problems during power transmission, the other power devices in its associated lines should also be closely monitored.

[0094] The power equipment in the above-mentioned levels are all exemplary classifications. This embodiment includes, but is not limited to, using one of the following as the stratification criteria: power loss value (PL), transmission range value (RAL), and power supply and distribution path (PSDT).

[0095] The working principle of the input and output ports is as follows: The input port of the power equipment is used to simulate the input information of the power equipment in the display. For example, in reality, the input type of the rectifier is a 240V AC mains power cable, and the output of the rectifier is an indoor 220V cable. Therefore, as a simulated power equipment, the rectifier's input port is a virtual digital 240V, and its output port is a virtual digital 220V. The virtual values ​​of the input and output ports of the simulated electronic devices that can be associated with the rectifier are adapted to the input and output ports of the rectifier.

[0096] The actual failure rate, failure level, and maintenance difficulty are taken into account as factors in the construction of the simulation model.

[0097] The visualization unit acquires the output frequency and output charge of the simulated power equipment at each level, and provides dynamic early warning for the simulated power equipment that exceeds the threshold.

[0098] The single variable is one of the following: power output value EG, power loss value PL, transmission range value RAL, and power supply and distribution path PSDT.

[0099] The working process of the visualization unit includes the following steps:

[0100] STEP 1: Obtain the output frequency of each layer of simulated power equipment; the output frequency is the sampling frequency, and the output load is the type of sampled value. Obtain the sampling frequency of different power equipment and unify the sampling frequency of simulated power equipment in the simulation model to ensure that the sampled values ​​obtained under the same sampling node are consistent when constructing the dynamic early warning real-time diagram.

[0101] STEP2: Collect the output frequencies of the multi-layered simulated power equipment into a multi-dimensional dynamic early warning real-time graph, wherein the multi-dimensional data includes at least time, the output frequency of the simulated power equipment, and the output load of the simulated power equipment. Figure 2 A two-dimensional dynamic graph is constructed by simulating the output load and time of electrical equipment. And... Figure 2 In the simulation, the dynamic curves of each level of power equipment have a unique identifier, which is used to distinguish and lock onto specific power equipment in the dynamic early warning real-time map.

[0102] STEP3: The dynamic early warning real-time graph is equipped with at least one early warning average line, which is the average value of the output frequency of all the simulated power equipment in each layer.

[0103] STEP 3: When the output frequency of the simulated power equipment exceeds the warning average line, mark the simulated power equipment and mark the upper-level simulated power equipment associated with the simulated power equipment.

[0104] This embodiment includes, but is not limited to, simulating faults in power equipment within a region using a constructed power grid simulation model. The virtual data pre-stored within the simulation body is configured with normal operating ranges. When virtual power data indicating a fault is provided, the simulation body uploads the fault data, causing the framework mechanism within the simulation body to detect the fault data. At this point, the framework mechanism adjusts the shape of the simulation body according to the magnitude of the fault data, aiming to distinguish existing normally operating simulated power equipment through changes in shape. The framework mechanism works by using drawing parameters and formula calculations, including linking the elements and geometric relationships (parallelism, perpendicularity, tangency, etc.) of the simulated power equipment, defining the elemental characteristics of the simulated power equipment under fault conditions, including but not limited to simulated power equipment overload leading to excessively high temperatures, flame-like tendencies in the equipment, and power loss causing the equipment to dim or disconnect inputs and outputs.

[0105] In summary, this embodiment, based on existing simulation models, uncovers the electrical energy correlation of various power devices and directly reflects it in the simulated power grid model. By constructing multiple simulation entities to simulate power devices and configuring the input and output environments of the simulation entities, and by uploading virtual power information data, it enables them to have the input and output functions of power devices.

[0106] It should be noted that the system in this embodiment corresponds to the method in the above embodiments. Therefore, any content not described in detail in this embodiment can be obtained by referring to the method in the above embodiments, and will not be repeated here.

[0107] Embodiments of the present invention also propose a simulation analysis apparatus for power equipment, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements a simulation analysis method for power equipment as described above.

[0108] Embodiments of the present invention also provide a computer-readable storage medium comprising a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to perform a simulation analysis method for power equipment as described above.

[0109] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and substitutions will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A simulation analysis method for power equipment, characterized in that, Includes the following steps: Acquire the equipment type and power information values ​​of multiple power devices within the target area; the power information values ​​include the power device output frequency and output load. Multiple simulated power equipment and simulated power grid models are constructed based on the equipment type and power information values; the simulated power equipment is configured with input ports and output ports; the simulated power grid model includes input ports and output ports, and the input port of the simulated power grid model is the input port of any simulated power equipment; During the simulation analysis, the power information values ​​and current time of the multiple power devices are acquired online in real time, and the power information values ​​and current time are respectively input into the input ports of the corresponding simulated power devices. The output port of the simulated power grid model outputs a dynamic early warning real-time diagram. Specifically, during the simulation analysis process, the simulated power grid model receives the output frequency and output load of multi-layer simulated power equipment, and generates a multi-dimensional dynamic early warning real-time map based on the output frequency and output load of the multi-layer simulated power equipment. When the output frequency of the simulated power equipment exceeds the warning average line, the simulated power equipment is marked, and the upper-level simulated power equipment associated with the simulated power equipment is also marked; wherein, the multi-dimensional includes at least time, the output frequency of the simulated power equipment, and the output load of the simulated power equipment, and the dynamic warning real-time graph is provided with at least one warning average line, which is the average value of the output frequency of all the simulated power equipment in each layer.

2. The simulation analysis method for power equipment according to claim 1, characterized in that, The simulated power grid model is constructed in the following manner: Obtain the power supply relationship of multiple power devices within the target area, and determine the underlying simulated power devices based on the power supply relationship; the underlying simulated power devices are the power supply side power devices. Based on the output of the underlying simulated power equipment, an upper-level simulated power equipment is constructed to obtain a multi-layered simulated power equipment; A hierarchical transmission channel is constructed based on the aforementioned multi-layer simulated power equipment; A simulated power grid model is obtained based on the hierarchical transmission channels and the multi-layered simulated power equipment.

3. The simulation analysis method for power equipment according to claim 2, characterized in that, The output port of the lower-level simulated power device is adapted to at least one input port of the upper-level simulated power device.

4. A simulation analysis system for power equipment, characterized in that, include: The information acquisition unit is used to acquire the equipment type and power information value of multiple power devices within the target area; The power information values ​​include the power equipment output frequency and output load; The simulation construction unit is used to construct multiple simulated power devices and simulated power grid models based on the device type and power information values; the simulated power devices are configured with input ports and output ports; the simulated power grid model includes input ports and output ports, and the input port of the simulated power grid model is the input port of any simulated power device; The simulation analysis unit is used to acquire the power information values ​​and current time of the multiple power devices online in real time during the simulation analysis process, and input the power information values ​​and current time into the corresponding input ports of the simulated power devices respectively. The output port of the simulated power grid model outputs a dynamic early warning real-time diagram. The simulation analysis unit is specifically used in the simulation analysis process, whereby the simulated power grid model receives the output frequency and output load of the multi-layer simulated power equipment and generates a multi-dimensional dynamic early warning real-time diagram based on the output frequency and output load of the multi-layer simulated power equipment. When the output frequency of the simulated power equipment exceeds the warning average line, the simulated power equipment is marked, and the upper-level simulated power equipment associated with the simulated power equipment is also marked; wherein, the multi-dimensional includes at least time, the output frequency of the simulated power equipment, and the output load of the simulated power equipment, and the dynamic warning real-time graph is provided with at least one warning average line, which is the average value of the output frequency of all the simulated power equipment in each layer.

5. The simulation analysis system for power equipment according to claim 4, characterized in that, The simulation construction unit is specifically used for: Obtain the power supply relationship of multiple power devices within the target area, and determine the underlying simulated power devices based on the power supply relationship; the underlying simulated power devices are the power supply side power devices. Based on the output of the underlying simulated power equipment, an upper-level simulated power equipment is constructed to obtain a multi-layered simulated power equipment; A hierarchical transmission channel is constructed based on the aforementioned multi-layer simulated power equipment; A simulated power grid model is obtained based on the hierarchical transmission channels and the multi-layered simulated power equipment.

6. A simulation analysis device for power equipment, characterized in that, The device includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement a simulation analysis method for power equipment as described in any one of claims 1 to 3.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to perform a simulation analysis method for power equipment as described in any one of claims 1 to 3.

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