A real-time digital simulation system based on an external stabilization simulation model

Abstract

The embodiment of the present invention relates to a real-time digital simulation system based on an external stabilization and control simulation model, including a real-time digital simulation module, a data interaction module and an external stabilization and control simulation module; the data interaction module is connected to the real-time digital simulation module and the external stabilization and control simulation module respectively. The external stabilization and control simulation module of the real-time digital simulation system based on the external stabilization and control simulation model realizes the simulation of the physical state data of multiple stabilization and control devices, and interconnects the physical state data of multiple stabilization and control devices collected by the real-time data simulation module through the data interaction module, so as to realize closed-loop simulation testing, realize decoupling from the stabilization and control devices, and will not lose simulation accuracy, and also reduce the hardware requirements for the stabilization and control devices, improve the scalability and reuse rate of the simulation system, enhance the adaptability of the simulation system to large-scale stabilization and control system simulation, and solve the technical problems that the existing digital simulation platform for testing the stabilization control system is limited by hardware resources, has weak scalability and poor applicability.

Description

Technical Field

[0001] The invention relates to the technical field of power system automation, and in particular to a real-time digital simulation system based on an external stabilization control simulation model. Background Art

[0002] With the continuous construction of UHV AC / DC projects, the cross-regional AC / DC interconnection of modern large power grids, the abnormal complexity of power grid structure and dynamic characteristics, has brought great challenges to the actual operation and control. In order to ensure the safe and reliable operation of large-scale power grids, a wide variety of large-scale stability control systems have been built. Large-scale stability control systems have the characteristics of wide distribution areas, involving many plants and stations, various device models, complex control strategies, and customized functions, which has brought great challenges to the implementation of stability control systems. As an important part of quality assurance, the test of stability control systems has received more and more attention for its test correctness and adaptability.

[0003] The existing test platforms based on real-time digital simulation systems all need to restore the actual stability control system. Due to the limitation of hardware resources, the current test methods are all for a single stability control system. If a single serious fault occurs in the power grid, the stability control system takes emergency control measures such as cutting the machine and shedding the load, and a large-scale power flow transfer occurs in the system, which may cause other stability control systems to malfunction and cause equipment to trip in a chain. The existing simulation platform cannot meet the needs of simulating multiple stability control systems at the same time. Therefore, a real-time simulation platform that can carry out large-scale stability control system access is needed to study the action characteristics of each stability control system under different serious faults in the cross-regional system. Summary of the invention

[0004] The embodiment of the present invention provides a real-time digital simulation system based on an external stability control simulation model, which is used to solve the technical problems that the existing digital simulation platform for testing the stability control system is limited by hardware resources, has weak scalability and poor applicability.

[0005] In order to achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] A real-time digital simulation system based on an external stabilization control simulation model, comprising a real-time digital simulation module, a data interaction module and an external stabilization control simulation module;

[0007] The real-time digital simulation module is used to simulate the dynamic changes of the power system operation in real time to obtain the physical state data of the power system;

[0008] The data interaction module is connected to the real-time digital simulation module and the external stabilization control simulation module respectively, and is used to realize the data interaction between the real-time digital simulation module and the external stabilization control simulation module;

[0009] The external stabilization control simulation module is used to perform stabilization control simulation through the physical state data and output simulation data.

[0010] Preferably, the data interaction module includes at least four interaction interfaces, and the four interfaces are respectively a first interaction interface, a second interaction interface, a third interaction interface and a fourth interaction interface;

[0011] The first interactive interface is connected to the real-time digital simulation module and is used to perform real-time data interaction with the real-time digital simulation module;

[0012] The second interactive interface is used to connect to the DC control and protection equipment;

[0013] The third interactive interface is used to connect with the non-simulation stabilization control device;

[0014] The fourth interactive interface is used to connect to the external stabilization and control simulation module, transmit the physical state data to the external stabilization and control simulation module, and receive simulation data.

[0015] Preferably, the second interactive interface is connected to the DC control and protection device via the FT3 communication protocol.

[0016] Preferably, the third interactive interface is connected to the non-simulation stabilization device via an HDLC communication protocol.

[0017] Preferably, the fourth interactive interface is connected to the external stabilization simulation module via a UDP communication protocol.

[0018] Preferably, the external stabilization control simulation module includes a management submodule and a logic simulation submodule;

[0019] The management submodule is used for processing, managing, displaying and controlling the data of the simulated stability control simulation process to obtain management data;

[0020] The logic simulation submodule is used to convert the management data into a dynamic link library matching the stabilization control device by using virtual component technology.

[0021] Preferably, the management submodule includes a data processing submodule, a fixed value management submodule, a display submodule and a synchronization control submodule;

[0022] The data processing submodule is used to process the physical state data through stable control simulation and output simulation data;

[0023] The fixed value management submodule is used to uniformly manage and process the parameters for setting the stability control simulation process;

[0024] The display submodule is used to display and / or record data information during the stability control simulation process;

[0025] The synchronous control submodule is used to control the interruption and synchronous operation matched with the stable control device during the stable control simulation process through the physical state data.

[0026] Preferably, the fixed value management submodule uses a fixed value management interface function to uniformly manage and process the parameters for setting the stability control simulation process.

[0027] Preferably, the display submodule uses an interactive interface function to display and / or record data information during the stability control simulation process.

[0028] It can be seen from the above technical scheme that the embodiments of the present invention have the following advantages: the real-time digital simulation system based on the external stabilization and control simulation model provided in the embodiments of the present application includes a real-time digital simulation module, a data interaction module and an external stabilization and control simulation module; the real-time digital simulation module is used to simulate the dynamic changes of the power system operation in real time to obtain the physical state data of the power system; the data interaction module is respectively connected to the real-time digital simulation module and the external stabilization and control simulation module, and is used to realize the data interaction between the real-time digital simulation module and the external stabilization and control simulation module; the external stabilization and control simulation module is used to perform stabilization control simulation through physical state data and output simulation data. The external stabilization and control simulation module of the real-time digital simulation system based on the external stabilization and control simulation model realizes the simulation of the physical state data of multiple stabilization and control devices, and interconnects the physical state data of multiple stabilization and control devices collected by the real-time digital simulation module through the data interaction module to realize closed-loop simulation testing, thereby realizing decoupling from the stabilization and control devices without losing simulation accuracy, reducing the hardware requirements for the stabilization and control devices, improving the scalability and reuse rate of the simulation system, and enhancing the adaptability of the simulation system to large-scale stabilization and control system simulation, solving the technical problems that the existing digital simulation platform for testing the stability control system is limited by hardware resources, has weak scalability and poor applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 A framework diagram of a real-time digital simulation system based on an external stabilization simulation model described in an embodiment of the present application;

[0031] Figure 2This is a framework diagram of a real-time digital simulation system based on an external stabilization simulation model described in another embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0036] The embodiment of the present application provides a real-time digital simulation system based on an external stability control simulation model, which is used to solve the technical problems that the existing digital simulation platform for testing stability control systems is limited by hardware resources, has weak scalability and poor applicability.

[0037] Figure 1 This is a framework diagram of the real-time digital simulation system based on the external stabilization simulation model described in the embodiment of the present application.

[0038] like Figure 1 As shown, an embodiment of the present application provides a real-time digital simulation system based on an external stabilization and control simulation model, including a real-time digital simulation module 10, a data interaction module 20 and an external stabilization and control simulation module 30; the real-time digital simulation module 10 is connected to the data interaction module 20, and the data interaction module 20 is connected to the external stabilization and control placement module 30.

[0039] In the embodiment of the present application, the real-time digital simulation module 10 is mainly used to simulate the dynamic changes of the operation of the power system in real time to obtain the physical state data of the power system.

[0040] It should be noted that the dynamically changing physical state data of the power system include data such as voltage, current, frequency, waveform, electromechanical, and electromagnetic characteristics. In this embodiment, the real-time digital simulation module 10 can obtain the physical state data of the power system by simulating the operation of the power system through the real-time data simulation system RTDS, or can obtain the physical state data of the power system by simulating the operation of the power system through the power system full digital simulation device ADPSS. Among them, the real-time data simulation system RTDS and the power system full digital simulation device ADPSS are relatively common technologies in the field of power systems and are not limited here.

[0041] In the embodiment of the present application, the data interaction module 20 is mainly used to realize the data interaction between the real-time digital simulation module 10 and the external stabilization control simulation module 30.

[0042] It should be noted that the real-time digital simulation system based on the external stabilization control simulation model realizes data interaction between the real-time digital simulation module 10 and the external stabilization control simulation module 30 through the data interaction module 20 .

[0043] In the embodiment of the present application, the external stabilization control simulation module 30 is mainly used to perform stabilization control simulation through physical state data and output simulation data.

[0044] It should be noted that the output simulation data is transmitted to the real-time digital simulation module 10 through the data interaction module 20. Among them, the external stabilization simulation module 30 can obtain the physical state data of multiple stabilization devices through the real-time digital simulation module 10 for simulation, thereby realizing simulation of multiple stabilization devices.

[0045] The present application provides a real-time digital simulation system based on an external stabilization control simulation model, including a real-time digital simulation module, a data interaction module and an external stabilization control simulation module; the real-time digital simulation module is used to simulate the dynamic changes of the operation of the power system in real time and obtain the physical state data of the power system; the data interaction module is connected to the real-time digital simulation module and the external stabilization control simulation module respectively, and is used to realize the data interaction between the real-time digital simulation module and the external stabilization control simulation module; the external stabilization control simulation module is used to perform stabilization control simulation through physical state data and output simulation data. The external stabilization control simulation module of the real-time digital simulation system based on the external stabilization control simulation model realizes the simulation of the physical state data of multiple stabilization control devices, interconnects the physical state data of multiple stabilization control devices collected by the data interaction module and the real-time digital simulation module, realizes closed-loop simulation testing, realizes decoupling from the stabilization control device, does not lose simulation accuracy, and also reduces the hardware requirements for the stabilization control device, improves the scalability and reuse rate of the simulation system, and enhances the adaptability of the simulation system to large-scale stabilization control system simulation, and solves the technical problems that the existing digital simulation platform for testing the stabilization control system is limited by hardware resources, has weak scalability and poor applicability.

[0046] Figure 2 This is a framework diagram of a real-time digital simulation system based on an external stabilization simulation model described in another embodiment of the present application.

[0047] like Figure 2 As shown, in one embodiment of the present application, the data interaction module 20 includes at least four interaction interfaces, which are a first interaction interface 21 , a second interaction interface 22 , a third interaction interface 23 and a fourth interaction interface 24 .

[0048] It should be noted that the data interaction module 20 can also be provided with other interaction interfaces for connecting with other power equipment. The data interaction module 20 has the ability to interact with the real-time digital simulation module 10, and is responsible for collecting the real-time dynamic physical state data of the power system; it also obtains the control command of the real-time digital simulation module 10 from the external stabilization simulation module 30 and transmits it to the real-time digital simulation module 10.

[0049] In the embodiment of the present application, the first interaction interface 21 is connected to the real-time digital simulation module 10 and is used to perform real-time data interaction with the real-time digital simulation module 10 .

[0050] In the embodiment of the present application, the second interactive interface 22 is mainly used to connect to the DC control and protection equipment.

[0051] It should be noted that the second interactive interface 22 is connected to the DC control and protection device via the FT3 communication protocol. The DC control and protection device is a commonly used power device in the power system, and will not be explained one by one here.

[0052] In the embodiment of the present application, the third interactive interface 23 is mainly used to connect to a non-simulation stabilization device.

[0053] It should be noted that the third interactive interface 23 is connected to the non-simulation stabilization and control device through the HDLC communication protocol. The non-simulation stabilization and control device can be power equipment such as a converter station and a transformer.

[0054] In the embodiment of the present application, the fourth interactive interface 24 is mainly used to connect to the external stabilization and control simulation module 30, transmit physical state data to the external stabilization and control simulation module 30, and receive simulation data.

[0055] It should be noted that the fourth interactive interface 24 is connected to the external stabilization and control simulation module via the UDP communication protocol. The data interaction module 20 provides a fourth interactive interface 24 connected to the external stabilization and control simulation module 30, sends the physical state data acquired in real time by the real-time digital simulation module 10 to the external stabilization and control simulation module 30, and receives the control command of the external stabilization and control simulation module 30 to the real-time digital simulation module 10. Since the amount of information interacted between the external stabilization and control simulation module 30 and the real-time digital simulation module 10 is large, the UDP protocol is preferably used for interaction.

[0056] like Figure 2 As shown, in one embodiment of the present application, the external stabilization simulation module 30 includes a management submodule 31 and a logic simulation submodule 32 .

[0057] In the embodiment of the present application, the management submodule 31 is mainly used for data processing, management, display and control of the simulation stability control simulation process to obtain management data. The management submodule 31 includes a data processing submodule 311, a fixed value management submodule 312, a display submodule 313 and a synchronous control submodule 314.

[0058] In the embodiment of the present application, the data processing submodule 311 is mainly used to process the physical state data through stable control simulation and output simulation data.

[0059] It should be noted that the data processing submodule 311 obtains the physical state data input by the real-time digital simulation module 10 through the data interaction module 20, and transmits the output simulation data calculated by the data processing submodule 311 of the external stabilization simulation module 30 to the real-time digital simulation module 10 through the data interaction module 20.

[0060] In the embodiment of the present application, the fixed value management submodule 312 is used to uniformly manage and process the parameters for setting the stability control simulation process.

[0061] It should be noted that the fixed value management submodule 312 uses the fixed value management interface function to uniformly manage and process the parameters of the stable control simulation process. The parameters of the stable control simulation process include the storage, modification, and recording of fixed values.

[0062] In the embodiment of the present application, the display submodule 313 is used to display and / or record data information during the stability control simulation process.

[0063] It should be noted that the display submodule 313 uses an interactive interface function to display and / or record data information during the stability control simulation process, wherein the data information includes telesignaling, telemetry, action messages, fault information, fault recording and other information.

[0064] In the embodiment of the present application, the synchronous control submodule 314 is mainly used to control the interruption and synchronous operation matched with the stable control device during the stable control simulation process through physical state data.

[0065] It should be noted that the synchronization control submodule 314 can simulate the stabilization device to interrupt the synchronous operation to ensure the consistency of data processing.

[0066] In the embodiment of the present application, the logic simulation submodule 32 is mainly used to convert the management data into a dynamic link library matching the stabilization control device by using virtual component technology. The logic simulation submodule 32 converts the actual stabilization control program into a dynamic link library supported by the operating environment of the external stabilization control simulation module 30 by combining virtual component technology, and performs interface matching according to the set rules; the dynamic link library is obtained by code conversion based on the actual logic of the simulated stabilization control device.

[0067] It should be noted that the logic simulation submodule 32 can be set on a mobile terminal, such as a host computer. The logic simulation submodule 32 uses virtual component technology to build a virtual stabilization control component with an equivalent architecture on the host computer (PC), and provides external functional interfaces including fixed value management, input and output data processing, action messages, logical calculation control, etc., and realizes information interaction with the operating environment of the actual stabilization control device through interface calls. Except for the relevant hardware entity characteristics that cannot be represented, protection and other functional modules can be simulated and executed in the virtual component. The virtual component technology in the logic simulation submodule 32 decouples the software functions of the stabilization control device from the hardware entity. The manufacturers of each stabilization control device complete the device software conversion, convert the actual stabilization control program code into a dynamic link library supported by the operating environment of the external stabilization control simulation module 30, and perform interface matching according to the set rules, thereby ensuring the consistency of the external stabilization control simulation module 30 with the actual physical stabilization control device strategy results.

[0068] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A real-time digital simulation system based on an external stabilization simulation model, characterized in that: It includes real-time digital simulation module, data interaction module and external stabilization simulation module; The real-time digital simulation module is used to simulate the dynamic changes of the power system operation in real time to obtain the physical state data of the power system; The data interaction module is connected to the real-time digital simulation module and the external stabilization control simulation module respectively, and is used to realize the data interaction between the real-time digital simulation module and the external stabilization control simulation module; The external stabilization control simulation module is used to perform stabilization control simulation through the physical state data and output simulation data; The external stabilization and control simulation module obtains the physical state data of multiple stabilization and control devices through the real-time digital simulation module to perform simulation, thereby realizing simulation of multiple stabilization and control devices; The external stabilization control simulation module includes a management submodule and a logic simulation submodule; The management submodule is used for processing, managing, displaying and controlling the data of the simulated stability control simulation process to obtain management data; The logic simulation submodule is used to convert the management data into a dynamic link library matching the stabilization and control device by using virtual component technology; The logic simulation submodule adopts virtual component technology to build a virtual stabilization and control component with the same architecture on the host computer, and provides an interface including constant value management, input and output data processing, action message, and logic calculation control functions to the outside world, and realizes information interaction with the operating environment of the actual stabilization and control device through the interface call; the virtual component technology in the logic simulation submodule decouples the software function of the stabilization and control device from the hardware entity, converts the actual stabilization and control program code into a dynamic link library supported by the operating environment of the external stabilization and control simulation module, and performs interface matching according to the set rules, thereby ensuring the consistency of the strategy results of the external stabilization and control simulation module and the actual physical stabilization and control device.

2. The real-time digital simulation system based on an external stabilization simulation model according to claim 1 is characterized in that: The data interaction module includes at least four interaction interfaces, the four interfaces are respectively a first interaction interface, a second interaction interface, a third interaction interface and a fourth interaction interface; The first interactive interface is connected to the real-time digital simulation module and is used to perform real-time data interaction with the real-time digital simulation module; The second interactive interface is used to connect to the DC control and protection equipment; The third interactive interface is used to connect with the non-simulation stabilization control device; The fourth interactive interface is used to connect to the external stabilization and control simulation module, transmit the physical state data to the external stabilization and control simulation module, and receive simulation data.

3. The real-time digital simulation system based on the external stabilization simulation model according to claim 2 is characterized in that: The second interactive interface is connected to the DC control and protection device via the FT3 communication protocol.

4. The real-time digital simulation system based on an external stabilization simulation model according to claim 2 is characterized in that: The third interactive interface is connected to the non-simulation stabilization device via the HDLC communication protocol.

5. The real-time digital simulation system based on an external stabilization simulation model according to claim 2 is characterized in that: The fourth interactive interface is connected to the external stabilization simulation module via the UDP communication protocol.

6. The real-time digital simulation system based on an external stabilization simulation model according to claim 1 is characterized in that: The management submodule includes a data processing submodule, a fixed value management submodule, a display submodule and a synchronization control submodule; The data processing submodule is used to process the physical state data through stable control simulation and output simulation data; The fixed value management submodule is used to uniformly manage and process the parameters for setting the stability control simulation process; The display submodule is used to display and / or record data information during the stability control simulation process; The synchronous control submodule is used to control the interruption and synchronous operation matched with the stable control device during the stable control simulation process through the physical state data.

7. The real-time digital simulation system based on an external stabilization simulation model according to claim 6 is characterized in that: The fixed value management submodule uses a fixed value management interface function to uniformly manage and process the parameters for setting the stability control simulation process.

8. The real-time digital simulation system based on an external stabilization simulation model according to claim 6 is characterized in that: The display submodule uses an interactive interface function to display and / or record data information during the stability control simulation process.

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