CN112631144B - Comprehensive energy real-time digital physical hybrid simulation system - Google Patents
Comprehensive energy real-time digital physical hybrid simulation system Download PDFInfo
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Abstract
The invention provides a comprehensive energy real-time digital physical hybrid simulation system, which comprises a physical entity and a digital simulation system; the physical entity is used for monitoring and scheduling various energy subsystems; the digital simulation system is used for simulating the power grid based on the electromagnetic transient power system simulation, and the TRNEdit subsystem is adopted for simulating the comprehensive energy subsystem; and simultaneously, the collaborative simulation of each simulation module is realized. The physical entity and the digital simulation system are connected through a digital physical hybrid simulation interface, and the real-time data driving and digital physical hybrid simulation of the system are realized by driving the comprehensive energy system management and control platform through real-time simulation data.
Description
Technical Field
The invention belongs to the technical field of comprehensive energy systems, and particularly relates to a comprehensive energy real-time digital physical hybrid simulation system.
Background
The comprehensive energy system is composed of a social energy supply network and a terminal comprehensive energy unit system, and energy links such as electric power, fuel gas, heat supply/cold supply, hydrogen supply and the like are organically integrated with a support system such as traffic, information and the like, so that the cooperative scheduling among different energy sources is realized, the efficient utilization of energy sources is realized, the multiple energy demands of users are met, and the social energy supply reliability and safety are improved. With the continuous development and application of new technologies and new equipment, the basic architecture of the comprehensive energy system is also continuously improved and changed, and the economic, environmental and social benefits brought by the basic architecture are also increasingly obvious.
Under the background that the theoretical research of the comprehensive energy system in China is continuously deep and the test point projects are orderly landed, the modeling and simulation technology of the comprehensive energy system needs to be developed. Publication number CN 109191017A-A simulation method, device, equipment and storage medium of comprehensive energy system, a simulation method of comprehensive energy system based on multiple agents is disclosed, by modeling energy suppliers and users in the comprehensive energy system, namely, by building a first agent model through a first objective function and first data of the energy suppliers, building a second agent model through a second objective function and second data of the users, and then correcting the first data, the first agent model, the second data and the second agent model by utilizing Q algorithm under the operation rule of the comprehensive energy system, the purpose of simulating the comprehensive energy system is achieved. But this technique does not propose a digital physical hybrid simulation method.
At present, no related technology and implementation scheme related to the real-time digital physical hybrid real-time simulation of the comprehensive energy system exist.
Disclosure of Invention
The invention aims to provide a real-time digital physical hybrid simulation system for comprehensive energy, which drives a comprehensive energy system management and control platform through real-time simulation data to realize real-time data driving and digital physical hybrid simulation of the system.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention provides a comprehensive energy real-time digital physical hybrid simulation system, which comprises a physical entity, a digital simulation system and a digital physical hybrid simulation interface;
the digital simulation system comprises a simulator and a simulation workstation; the simulation workstation is used for building a power system simulation model and a comprehensive energy subsystem simulation model; the simulator is used for carrying out simulation calculation based on a simulation model;
the physical entity comprises an energy efficiency management system and comprehensive energy control equipment connected with the energy efficiency management system; the energy efficiency management system is used for controlling and operating the comprehensive energy control equipment according to the calculation result of the simulator;
the digital physical hybrid simulation interface is used for transmitting collected data and control instructions between a physical entity and the digital simulation system.
Further, the digital physical hybrid simulation interface Ethernet is connected with the digital simulation system and the physical entity; or one of AI/0, DI/O, CAN, optical fiber, USB and 485/232 interface modes can be adopted according to the requirement.
Further, the simulator comprises a real-time simulation supporting environment of the comprehensive energy system, a simulation module and a collaborative simulation module;
the comprehensive energy system real-time simulation supporting environment is used for providing equipment parameters and a network topology structure for the simulation module, storing the calculation result of the simulation module and managing the simulation module and the collaborative simulation module;
the simulation module is used for performing simulation calculation on the power system and the comprehensive energy subsystem based on a simulation model built by the simulation workstation;
the integrated energy subsystem is referred to as,
dividing the comprehensive energy system into different areas according to the area of the terminal comprehensive energy system in space;
the regional power grid, the regional natural gas network and the regional heating network of different regions are comprehensive energy subsystems corresponding to different layers;
the collaborative simulation module is used for performing time collaboration among the simulation modules.
Further, the real-time simulation supporting environment of the integrated energy system comprises:
the real-time simulation communication bus is used for providing a data and time access interface between the real-time simulation supporting environment of the comprehensive energy system and the simulation module and between the real-time simulation supporting environment of the comprehensive energy system and the collaborative simulation module;
the real-time database is used for storing the integral information model of the comprehensive energy system and the subsystem information model; the integrated energy system overall information model is used for storing parameters of all integrated energy control equipment in the integrated energy system, network topologies of various energy supply modes and coupling relations thereof, and state data of all integrated energy control equipment in the integrated energy system; the subsystem information model is used for storing the simulation result of each step of the simulation module, and one subsystem information model is responsible for one simulation module;
the file system is used for storing the network topology graph of the comprehensive energy system and static information of the graph of each simulation module;
the simulation time sequence control service module is used for controlling time synchronization among the plurality of simulation modules;
the method comprises the steps of,
and the simulation management service module is used for creating, modifying and loading the information model, controlling the start, pause and stop of the simulation, managing users and providing man-machine data interaction service.
Further, the real-time emulation communication bus provides a C/C++, python and Java-based API in which a real-time database access interface, a file access interface, and an inter-module message interaction interface are encapsulated.
Furthermore, the subsystem information models form the same connection relation through a real-time simulation communication bus according to the connection relation among the subsystems, and the subsystem information models send the data of the subsystem information models with the connection relation to the subsystem information models to the subsystem simulation module by calling the data of the subsystem information models with the connection relation to perform interaction of the output data of the subsystem simulation modules.
Furthermore, the simulation time sequence control service module is specifically used for,
according to the simulation time sequence message issued by the user, a plurality of simulation modules are cooperated to push simulation calculation according to the interaction sequence;
the simulation time sequence message is provided with a time stamp, and each simulation module advances simulation calculation according to the time stamp of the currently received simulation time sequence message.
Further, the simulation module comprises a power system simulation module and a comprehensive energy subsystem simulation module;
the power system simulation module is used for performing simulation on the power grid by adopting electromagnetic transient-based power system simulation;
the comprehensive energy subsystem simulation module adopts a TRNEdit module to simulate and calculate the comprehensive energy subsystem; the TRNEdit module is generated based on TRNSYS, and different comprehensive energy subsystem simulation modules are distributed to comprehensive energy subsystems of different areas and different layers.
Further, the co-simulation module comprises an electric power co-simulation module and a TRNSYS co-simulation module;
the electric power collaborative simulation module is developed based on C++ and is used for accessing the real-time simulation communication bus, acquiring simulation time sequence information from the simulation time sequence control service module and pushing the electric power system simulation module to perform simulation calculation according to the time stamp of the simulation time sequence information; acquiring information parameters required by simulation calculation of the power system from a real-time database and sending calculation results of each step of simulation of the power system to an information model corresponding to the system;
the TRNSYS collaborative simulation module is based on the mixed development of FORTRON and C++ and is used for accessing the real-time simulation communication bus, acquiring a simulation time sequence message from the simulation time sequence control service module and pushing the comprehensive energy subsystem simulation module to perform simulation calculation according to a time stamp of the simulation time sequence message; and acquiring information parameters required by the simulation calculation of the comprehensive energy subsystem from the real-time database and transmitting the calculation result of each step of the subsystem simulation to a corresponding information model.
The beneficial effects of the invention are as follows:
the invention provides a digital physical hybrid real-time simulation system suitable for a multi-energy complementary comprehensive energy system, which monitors and schedules various energy subsystems through physical entities; the power grid is simulated by a digital simulation system, and the comprehensive energy subsystem is simulated by a TRNEdit subsystem; and driving the comprehensive energy system management and control platform through real-time simulation data to realize real-time data driving and digital physical hybrid simulation of the system. The invention provides a brand-new simulation means and test method, which effectively realize popularization and application of the comprehensive energy technology and meet the training requirements of practitioners in the comprehensive energy field.
Drawings
FIG. 1 is a diagram of a real-time digital physical hybrid simulation system of comprehensive energy in the invention;
FIG. 2 is a schematic diagram of a combined simulation architecture for a comprehensive energy system according to the present invention.
Detailed Description
The invention provides a comprehensive energy real-time digital physical hybrid simulation system which can realize simulation verification on the effectiveness and feasibility of an integrated modeling and complementary regulation technology. Referring to fig. 1, the digital physical hybrid simulation system of the present invention includes two parts, namely a physical entity and a digital simulation. The physical entity is a real comprehensive energy efficiency management system and control equipment, and is connected with the digital simulation part through the digital physical hybrid simulation interface to form a semi-physical simulation platform.
In particular, the method comprises the steps of,
the physical entity part comprises a real energy efficiency management system which is connected with real comprehensive energy control equipment to realize the monitoring and scheduling of various energy sources such as heat energy, cold energy, electric energy, chemical energy, mechanical energy, solar energy, wind energy, energy storage and the like.
The digital simulation part comprises a simulator and a simulation workstation, the simulation workstation realizes the construction of a simulation model based on power system simulation software and Trnsys simulation software, and the simulation process is monitored, controlled, operated and the like; and the digital simulation calculation of the comprehensive energy system is realized in the simulator.
Digital physical hybrid simulation interface: the digital simulation and physical entities are connected in the form of Ethernet, and multiple interface modes such as AI/0, DI/O, CAN, optical fiber, USB, 485/232 and the like can be expanded according to the needs, so that the transmission of the acquisition data and control instructions between the digital simulation and the physical entities is realized.
The calculation result of the simulator is sent to an energy efficiency management system through a digital physical hybrid simulation interface, and the energy efficiency management system realizes real-time data driving and digital physical hybrid simulation of the system by controlling and operating the comprehensive energy control equipment according to the simulation result.
The digital simulation calculation of the comprehensive energy system is realized through the multi-simulation software joint simulation, the comprehensive energy system joint simulation architecture is shown in fig. 2, and the simulation architecture is realized through a simulator. The integrated energy system joint simulation is based on a real-time simulation supporting environment (called as a simulation supporting environment for short) of the integrated energy system, and various simulation modules such as a power system simulation module, an integrated energy simulation module TRNSYS and the like are integrated by developing various collaborative simulation modules (a power collaborative simulation module and a plurality of TRNSYS collaborative simulation modules). The power system simulation module is used for simulating a power system, and the comprehensive energy simulation module TRNSYS is used for simulating a comprehensive energy subsystem.
Each collaborative simulation module corresponds to one simulation module, and each collaborative simulation module is responsible for data interaction between the corresponding simulation module and the simulation supporting environment, and realizes simulation time synchronization with other simulation modules under the control of the simulation time sequence control service module. The power collaborative simulation module is responsible for a power system simulation module, and one TRNSYS collaborative simulation module is responsible for one comprehensive energy simulation module TRNSYS.
In particular, the method comprises the steps of,
the real-time simulation supporting environment of the comprehensive energy system is the basis of a combined simulation framework of the comprehensive energy system, and consists of a real-time simulation communication bus, a real-time database, a file system, a simulation time sequence control service module and a simulation management service module. The specific functions are as follows:
the real-time simulation communication bus is used for providing a unified data and time access interface for each module and each simulation module (power system simulation module, comprehensive energy simulation module TRNSYS) in the comprehensive energy system real-time simulation supporting environment. The real-time simulation communication bus externally provides an API based on languages such as C/C++, python, java and the like, and the API encapsulates various interfaces such as real-time database access, file access, message interaction among modules and the like.
The real-time database is used for storing the integral information model of the comprehensive energy system and the subsystem information model; the integrated energy system overall information model is used for storing parameters of all integrated energy control equipment in the integrated energy system, network topologies of various energy supply modes and coupling relations thereof, and state data of all integrated energy control equipment in the integrated energy system; the subsystem information model is used for storing simulation results of each step of the simulation module, and one subsystem information model is responsible for one simulation module.
The subsystem information models form the same connection relation through a real-time simulation communication bus according to the connection relation among the subsystems, and the data interaction among the subsystem simulation modules is realized through the data interaction among the subsystem information models with the connection relation.
The simulation time sequence control service module is used for controlling time synchronization among a plurality of simulation modules. Specifically, the simulation time sequence control service module receives a simulation control strategy of a user, and cooperates with the plurality of simulation modules to advance a simulation calculation process according to an interactive sequence by receiving and sending simulation time sequence information. The simulation time sequence message is provided with a time stamp, and the simulation module advances simulation calculation according to the time stamp of the currently received simulation time sequence message.
The simulation management service module is used for providing management service functions of the real-time simulation supporting environment of the comprehensive energy system, such as the functions of the whole information model of the comprehensive energy system, the creation, modification, loading and the like of the subsystem information model, the control of simulation start, suspension, stop and the like, user management, man-machine data interaction service and the like.
The file system is used for storing static information such as network topology graph of the comprehensive energy system and graphs of each simulation module.
In particular, the method comprises the steps of,
the integrated energy system joint simulation architecture fully considers the physical form of an energy internet/integrated energy system, wherein the energy internet consists of a regional power grid, a regional natural gas network, a regional heating network and a large number of terminal integrated energy systems, and the regional power grid, the regional natural gas network and the regional heating network belong to different energy systems and have the characteristic of layering; the plurality of terminal comprehensive energy systems are spatially distributed in different areas and are mutually coupled through regional power grids, regional natural gas networks and regional heat networks, and the terminal comprehensive energy system has the characteristic of zoning. The combined simulation architecture distributes the energy network simulation of different levels and the comprehensive energy simulation of different areas to different single energy simulation modules to complete, realizes the cooperation of simulation time sequences and the interaction of coupling data of each step through the cooperative control of a plurality of single energy simulation modules, realizes the simulation of the operation characteristics of the whole energy Internet and the comprehensive energy system, and overcomes the difficulty brought to the comprehensive energy simulation by the simulation scale difference of different energy systems.
The power system simulation module is used for carrying out simulation on the power grid by adopting power system simulation software based on an electromagnetic transient principle, and the C++ based development power collaborative simulation module is responsible for realizing access to a real-time simulation communication bus and completing the transceiving of data and simulation time sequence messages.
And the comprehensive energy system adopts TRNSYS to complete the simulation of the comprehensive energy cold-hot system. The simulation of the multiple comprehensive energy subsystems is completed by multiple TRNEdit subsystems, the TRNEdit subsystems are generated by simulation software TRNSYS, and the simulation system is a comprehensive energy simulation system which can be independently operated from the TRNSYS software. Each TRNEdit subsystem realizes access to the real-time simulation communication bus through the TRNSYS co-simulation module. The TRNSYS co-simulation module is developed based on the mixed programming technology of FORTRON and C++, and is used as a user expansion simulation module (TYPE) in TRNSYS, and can be added into a simulation scene calculation sequence of each TRNEdit subsystem through system modeling. On one hand, the TRNSYS collaborative simulation module collects output data of the TRNEdit subsystem simulation module, stores the data into an information model corresponding to the subsystem in a real-time database by accessing a real-time simulation communication bus, reads data in the subsystem information model with a connection relation with the subsystem from the real-time database, and sends the data to the TRNEdit subsystem simulation module; on the other hand, the TRNSYS co-simulation module and the simulation time sequence control service module perform simulation time sequence message interaction to realize co-simulation.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (6)
1. The comprehensive energy real-time digital physical hybrid simulation system is characterized by comprising a physical entity, a digital simulation system and a digital physical hybrid simulation interface;
the digital simulation system comprises a simulator and a simulation workstation; the simulation workstation is used for building a power system simulation model and a comprehensive energy subsystem simulation model; the simulator is used for carrying out simulation calculation based on a simulation model;
the simulator comprises a real-time simulation supporting environment of the comprehensive energy system, a simulation module and a collaborative simulation module;
the comprehensive energy system real-time simulation supporting environment is used for providing equipment parameters and a network topology structure for the simulation module, storing the calculation result of the simulation module and managing the simulation module and the collaborative simulation module; the real-time simulation supporting environment of the comprehensive energy system comprises:
the real-time simulation communication bus is used for providing a data and time access interface between the real-time simulation supporting environment of the comprehensive energy system and the simulation module and between the real-time simulation supporting environment of the comprehensive energy system and the collaborative simulation module;
the real-time database is used for storing the integral information model of the comprehensive energy system and the subsystem information model; the integrated energy system overall information model is used for storing parameters of all integrated energy control equipment in the integrated energy system, network topologies of various energy supply modes and coupling relations thereof, and state data of all integrated energy control equipment in the integrated energy system; the subsystem information model is used for storing the simulation result of each step of the simulation module, and one subsystem information model is responsible for one simulation module;
the file system is used for storing the network topology graph of the comprehensive energy system and static information of the graph of each simulation module;
the simulation time sequence control service module is used for controlling time synchronization among the plurality of simulation modules; according to the simulation time sequence message issued by the user, a plurality of simulation modules are cooperated to push simulation calculation according to the interaction sequence; the simulation time sequence message is provided with a time stamp, and each simulation module advances simulation calculation according to the time stamp of the currently received simulation time sequence message;
the method comprises the steps of,
the simulation management service module is used for creating, modifying and loading an information model, controlling the start, pause and stop of simulation, managing users and providing man-machine data interaction service;
the simulation module is used for performing simulation calculation on the power system and the comprehensive energy subsystem based on a simulation model built by the simulation workstation; the comprehensive energy subsystem refers to: dividing the comprehensive energy system into different areas according to the area of the terminal comprehensive energy system in space; the regional power grid, the regional natural gas network and the regional heating network of different regions are comprehensive energy subsystems corresponding to different layers;
the collaborative simulation module is used for performing time collaboration among the simulation modules;
the physical entity comprises an energy efficiency management system and comprehensive energy control equipment connected with the energy efficiency management system; the energy efficiency management system is used for controlling and operating the comprehensive energy control equipment according to the calculation result of the simulator;
the digital physical hybrid simulation interface is used for transmitting collected data and control instructions between a physical entity and the digital simulation system.
2. The integrated energy real-time digital physical hybrid simulation system according to claim 1, wherein the digital physical hybrid simulation interface is connected with the digital simulation system and the physical entity in the form of an Ethernet; or one of AI/0, DI/O, CAN, optical fiber, USB and 485/232 interface modes can be adopted according to the requirement.
3. The integrated energy real-time digital physical hybrid simulation system according to claim 1, wherein the real-time simulation communication bus provides a C/c++, python and Java based API in which real-time database access interfaces, file access interfaces, and inter-module message interaction interfaces are encapsulated.
4. The integrated energy real-time digital physical hybrid simulation system according to claim 1, wherein the subsystem information models form the same connection relation through a real-time simulation communication bus according to the connection relation among the subsystems, and the subsystem information models send the data of the subsystem information models with the connection relation to the subsystem information models to the subsystem simulation modules by calling the data of the subsystem information models with the connection relation to the subsystem information models to perform interaction of the output data of the subsystem simulation modules.
5. The integrated energy real-time digital physical hybrid simulation system according to claim 1, wherein the simulation module comprises a power system simulation module and an integrated energy subsystem simulation module;
the power system simulation module is used for performing simulation on the power grid by adopting electromagnetic transient-based power system simulation;
the comprehensive energy subsystem simulation module adopts a TRNEdit module to simulate and calculate the comprehensive energy subsystem; the TRNEdit module is generated based on TRNSYS, and different comprehensive energy subsystem simulation modules are distributed to comprehensive energy subsystems of different areas and different layers.
6. The integrated energy real-time digital physical hybrid simulation system according to claim 5, wherein the co-simulation module comprises a power co-simulation module and a TRNSYS co-simulation module;
the electric power collaborative simulation module is developed based on C++ and is used for accessing the real-time simulation communication bus, acquiring simulation time sequence information from the simulation time sequence control service module and pushing the electric power system simulation module to perform simulation calculation according to the time stamp of the simulation time sequence information; acquiring information parameters required by simulation calculation of the power system from a real-time database and sending calculation results of each step of simulation of the power system to an information model corresponding to the system;
the TRNSYS collaborative simulation module is based on the mixed development of FORTRON and C++ and is used for accessing the real-time simulation communication bus, acquiring a simulation time sequence message from the simulation time sequence control service module and pushing the comprehensive energy subsystem simulation module to perform simulation calculation according to a time stamp of the simulation time sequence message; and acquiring information parameters required by the simulation calculation of the comprehensive energy subsystem from the real-time database and transmitting the calculation result of each step of the subsystem simulation to a corresponding information model.
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