CN112466194A - Transformer substation collaborative teaching method and device, terminal equipment and readable storage medium - Google Patents
Transformer substation collaborative teaching method and device, terminal equipment and readable storage medium Download PDFInfo
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Abstract
The invention discloses a transformer substation cooperative teaching method, a device, terminal equipment and a readable storage medium, wherein the method comprises the following steps: modeling and inputting a primary wiring diagram of the transformer substation into a real-time digital simulation system to construct a primary system; discretizing a differential equation with electrical characteristics according to a real-time digital simulation system to form discretization adjoint models of N simulation models; acquiring a topological structure of the primary system, and constructing a discretization adjoint network of the primary system according to the discretization adjoint models of the N simulation models so as to solve the voltage and current values of the primary system of discrete time nodes; and taking the primary system voltage and current value of the discrete time node as an initial value of a primary system of the discrete time node at the next moment, and constructing a discretization accompanying network at the next moment according to the topological structure change of the primary system so as to obtain a discretization solution sequence of the primary system voltage and current value. According to the scheme, different transformer substation models can be combined and set up at will in the transformer substation teaching, and the teaching content is diversified.
Description
Technical Field
The invention relates to the technical field of transformer substation teaching, in particular to a transformer substation collaborative teaching method, a transformer substation collaborative teaching device, terminal equipment and a readable storage medium.
Background
At present, a national grid company provides a strong intelligent grid, namely an energy internet with strong grid structure, wide interconnection, high intelligence and open interaction. In addition, the relevant major strategic emerging industry related major of the education department, namely 'smart power grid information engineering', is set to increase the talent cultivation strength of important strategic emerging industries such as the Internet, green economy, low-carbon economy, environmental protection technology and the like. Therefore, how to ensure the correctness and the normative of teaching links such as design, engineering implementation, operation maintenance and the like in the intelligent power grid teaching is particularly important.
However, at present, in the aspect of teaching equipment/experimental equipment of the smart grid, huge market demands exist, for example, in the aspects of intelligent substations, IEC6185, intelligent digital devices and the like, and domestic markets are almost vacant.
In addition, although the intelligent power grid or intelligent substation teaching equipment is arranged on the market, different substation models cannot be combined and set up at will in the intelligent substation teaching due to the non-open and primary simulation system, so that the teaching content is simplified, principle teaching cannot be performed in the teaching activity, the practice teaching is fixed, and the teaching effect is not ideal.
Disclosure of Invention
The invention mainly aims to provide a transformer substation cooperative teaching method, a transformer substation cooperative teaching device, terminal equipment and a readable storage medium, and aims to solve the technical problems that different transformer substation models cannot be combined and set up in a non-open manner and the teaching content is single in the existing intelligent power grid or transformer substation teaching.
In order to achieve the purpose, the invention provides a transformer substation cooperative teaching method, which comprises the following steps:
modeling and inputting a primary wiring diagram of the transformer substation into a real-time digital simulation system to construct a primary system;
discretizing a differential equation with electrical characteristics according to the real-time digital simulation system to form discretization adjoint models of N simulation models;
acquiring a topological structure of the primary system, and constructing a discretization adjoint network of the primary system according to the discretization adjoint models of the N simulation models;
solving the voltage and current values of the primary system of discrete time nodes according to the discretization accompanying network of the primary system;
and taking the primary system voltage and current value of the discrete time node as the initial value of the primary system of the discrete time node at the next moment, and constructing a discretization accompanying network at the next moment according to the topological structure change of the primary system so as to obtain a discretization solution sequence of the primary system voltage and current value.
Optionally, the modeling of the primary wiring diagram of the substation is input into a real-time digital simulation system, and the step of constructing the primary system includes:
and under different operation modes, obtaining the transformer substation power flow simulation and data output according to the change of the switch position.
Optionally, the substation includes, but is not limited to, a merging unit, an intelligent terminal, an intelligent component and a protection control device of a bay level connected according to an SV network and a GOOSE network, and controls data input and data output of the real-time digital simulation system.
Optionally, the step of discretizing a differential equation having electrical characteristics according to the real-time digital simulation system to form a discretized adjoint model of N simulation models comprises:
acquiring N differential equations with electrical characteristics according to the real-time digital simulation system;
and selecting a corresponding preset numerical integration method for discretization according to each differential equation with the electrical characteristics so as to form the discretization adjoint model of the N simulation models.
Optionally, N of the N differential equations with electrical characteristics is an integer greater than or equal to 1.
Optionally, the step of obtaining the topology structure of the primary system and constructing the discretized adjoint network of the primary system according to the discretized adjoint models of the N simulation models includes:
acquiring a topological structure of the primary system, and connecting discretization adjoint models of the N simulation models;
and constructing a discretization adjoint network of the primary system according to the connected discretization adjoint models of the N simulation models.
Optionally, the solving the voltage and current values of the primary system of the discrete-time node according to the discretization accompanying network of the primary system includes:
acquiring a voltage-current equation set of discrete time nodes according to the discretization accompanying network of the primary system;
and solving the primary system voltage current value of the discrete time node according to the voltage current equation set of the discrete time node.
In addition, in order to achieve the above object, the present invention further provides a transformer substation cooperation teaching device, including:
the system building module is used for inputting the modeling of the primary wiring diagram of the transformer substation into the real-time digital simulation system to build the primary system;
the discretization adjoint model module is used for discretizing a differential equation with electrical characteristics according to the real-time digital simulation system to form a discretization adjoint model of the N simulation models;
the discretization accompanying network module is used for acquiring the topological structure of the primary system and constructing a discretization accompanying network of the primary system according to the discretization accompanying models of the N simulation models;
the voltage and current solving module is used for solving the voltage and current value of the primary system of the discrete time node according to the discretization accompanying network of the primary system;
and the discrete solution sequence acquisition module is used for taking the primary system voltage and current value of the discrete time node as an initial value of the primary system of the discrete time node at the next moment, and constructing a discretization accompanying network at the next moment according to the topological structure change of the primary system so as to acquire the discrete solution sequence of the primary system voltage and current value.
When the functional modules of the transformer substation cooperative teaching device run, the steps of the transformer substation cooperative teaching method are realized.
In addition, to achieve the above object, the present invention further provides a terminal device, including: the substation cooperative teaching method comprises a memory, a processor and a substation cooperative teaching program which is stored on the memory and can run on the processor, wherein the substation cooperative teaching program realizes the steps of the substation cooperative teaching method when being executed by the processor.
In addition, to achieve the above object, the present invention further provides a readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the steps of the substation cooperation teaching method as described above.
According to the transformer substation cooperative teaching method, the device, the terminal equipment and the readable storage medium, a transformer substation primary system is realized through the real-time digital simulation system, specifically, the transformer substation primary wiring diagram modeling is input to the real-time digital simulation system, transformer substation tide simulation and data output are realized, and therefore the steady-state and transient-state operation conditions of a power system can be truly reflected. Further, acquiring a differential equation with electrical characteristics of the transformer substation according to the real-time digital simulation system, selecting a preset numerical integration method adaptive to the differential equation with the electrical characteristics, and discretizing the differential equation with the electrical characteristics to form discretization adjoint models of N simulation models; connecting the discretization accompanying models of the N simulation models according to the topological structure of the primary system of the transformer substation to construct a discretization accompanying network of the primary system of the transformer substation; according to the transformer substation primary system discretization accompanying network, acquiring a voltage equation set of discrete time nodes, regarding the voltage equation set as a linear equation set, solving, and solving a primary system voltage current value of the discrete time nodes; and at the moment, the solved voltage and current values are used as initial values of the primary system of the discrete time node at the next moment, a discretization accompanying network at the next moment is constructed according to the change of the topological structure of the primary system of the transformer substation, a voltage equation set of the discrete time node at the next moment is obtained, the voltage equation set is used as a linear equation set, the primary system voltage and current values of the discrete time node at the next moment are solved, and a discretization solution sequence of the primary system voltage and current values is obtained.
Through the real-time digital simulation system established by the steps of the invention, the learning, testing, researching and analyzing of the contents of three layers of two networks, communication and network equipment, IEC61850 protocol, intelligent power grid dispatching and the like can be realized; in the intelligent substation teaching, the power grid fault can be reproduced, and the maintenance training of various intelligent devices is completed; furthermore, different transformer substation models can be combined and set up at will, teaching contents are diversified, and principle teaching and real-practice teaching can be performed in teaching activities.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic logical view of an embodiment of a substation of the present invention;
FIG. 2 is a schematic flow chart of an embodiment of a transformer substation cooperative teaching method according to the present invention;
fig. 3 is a schematic overall structure diagram of an embodiment of the transformer substation cooperation teaching device according to the present invention;
FIG. 4 is a schematic flow chart illustrating data output in the real-time digital simulation system according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating data output in the real-time digital simulation system according to another embodiment of the present invention;
fig. 6 is a schematic flow chart of an embodiment of data merging in the substation coordination teaching device according to the present invention;
fig. 7 is a schematic flow chart of data merging in the substation coordination teaching device according to another embodiment of the present invention;
fig. 8 is a schematic functional module diagram of an embodiment of the substation coordination teaching device according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The terminal device may be implemented in various forms. For example, the terminal device described in the present invention may include a personal computer, a teaching display terminal, and various mobile terminals or fixed terminals having a display screen, such as a mobile terminal like a mobile phone, a tablet computer, a notebook computer, a palm computer, a wearable device, a smart band, and a fixed terminal like a digital TV, a desktop computer, and the like.
In 2009, the concept of "strong smart grid" was first proposed by the national grid company, and in 2013, the national grid company gives its detailed definition, that is, a grid strong, widely interconnected, highly intelligent, open and interactive energy internet. The intelligent power grid information project is an important strategic emerging industry related specialty developed by the education department in 2010. The professional setting is to increase talent cultivation strength of important strategic emerging industries such as internet, green economy, low-carbon economy, environmental protection technology and the like. However, the research direction of the intelligent power grid information engineering lacks corresponding teaching equipment, and the correctness and the normative of teaching links such as design, engineering implementation, operation maintenance and the like cannot be guaranteed. At present, huge market demands exist in the aspect of teaching equipment/experimental equipment of an intelligent power grid, for example, the aspects of intelligent substations, IEC6185, intelligent digital devices and the like, and domestic markets are almost vacant.
The existing intelligent power grid or intelligent substation teaching equipment generally adopts analog physical elements to build an analog primary loop, and is configured with a field-level digital device to form a substation model with a fixed structure. Due to the non-openness of the field-level digital device, the intelligent substation teaching device just like a black box cannot show the working principle of the intelligent substation teaching device and has no possibility of adjusting and simulating illegal operation. Cause the principle teaching in the teaching activity to go on, the real operation teaching is fixed, and the teaching effect is unsatisfactory.
In addition, because the simulation primary system of the current intelligent substation teaching equipment is built by adopting physical simulation elements such as reactors, resistors, capacitors and the like, different substation models cannot be combined and built at will, so that the teaching content is simplified, and the teaching content such as intelligent substation configuration, intelligent device configuration, SCD file compilation and the like cannot be carried out.
In order to solve the above problems, referring to fig. 1, the logic schematic diagram of the work in the substation collaboration teaching device in the present invention is shown, specifically, a logic and gate inputs low voltage start, soft sub-board input, and hard pressing board input, and outputs the input to the enable end of the bus differential module through the logic and gate; the other logic AND gate inputs a 3DL open mother difference, a 4DL open mother difference and a 5DL open mother difference through a GOOSE network and outputs the two differences to the bus differential module through the logic AND gate; and finally, a bus differential signal and a cut-off circuit breaker are output through a GOOSE network in combination with the A-phase current effective value, the B-phase current effective value and the C-phase current effective value input by the bus differential module.
Referring to fig. 2, which is a schematic flow chart of a transformer substation collaborative teaching method, the transformer substation collaborative teaching method includes:
step S10, inputting the modeling of the primary wiring diagram of the transformer substation into a real-time digital simulation system to construct a primary system; here, the protection element logic nodes are modeled according to IEC61850-7-4, which is specified by the international electrotechnical commission, and the programmable logic and operation elements are created.
Further, the modeling of the primary wiring diagram of the transformer substation is input into a real-time digital simulation system, and the step of constructing the primary system comprises the following steps:
and under different operation modes, obtaining the transformer substation power flow simulation and data output according to the change of the switch position.
In this embodiment, the substation includes, but is not limited to, a merging unit, an intelligent terminal, an intelligent component, and a protection control device of a bay level connected according to an SV network and a GOOSE network, and controls data input and data output of the real-time digital simulation system. It should be noted that, on the configuration tool, the connection relationship between the associated elements is established in a graphic connection manner, that is, the protection and control functions of the devices are realized through graphic programming, specifically, as shown in fig. 3, which is a schematic diagram of a real-time overall structure of a substation, in the real-time digital simulation system, the communication management screen, the plurality of primary system simulation screens, and the plurality of secondary system simulation screens are connected to the SV network through the GOOSE network and connected to the terminal devices such as a projector, a computer host, a printer, and the like.
In addition, in the configuration tool of this scheme transformer substation, normal operating temperature: -20 to 60 ℃; a working power supply: alternating current is 220V; tolerance deviation: 10 to 10 percent below zero, and the power is not more than 50W; networking port: the system comprises a self-contained 2-path optical fiber Ethernet and a local gateway, wherein the self-contained 2-path optical fiber Ethernet is used for connecting an SV network/GOOSE network through a switch; point-to-point port: configuring 8 paths of optical network ports and supporting IEC61850-9-2 protocol; and configuring a data input interface and an optical fiber interface. For receiving data transmitted by the power network signal simulation software. Configuring a data output interface: and the optical fiber interface is used for connecting with the GOOSE network.
In the configuration tool of transformer substation, the performance index of the optical digital relay protection tester: the input voltage and current are digital quantities (meeting the formats of IEC61850-9-1, IEC61850-9-2 and FT 3), and state quantities such as tripping and closing are transmitted by a GOOSE network; SV network and GOOSE network information can be configured; the SV network abnormal message and the GOOSE network abnormal message can be simulated, and the high-level complex digital message test function is realized; the relay protection testing module is comprehensive, and a comprehensive relay protection testing function is realized; the 8-path optical fiber communication interface can receive and transmit sampling values and GOOSE in IEC61850-9-1/2 frame formats; simulating abnormal messages, such as jitter, frame loss, error sequence, data abnormality, quality abnormality, step loss and the like; the sampling value and the GOOSE configuration information can be stored and repeatedly called; ethernet communication interface: 10/100Base-TX, RJ 45; optical interface communication interface: SFP, 1310nm, transmission distance is more than 1 km; and (3) time setting interface: IRIG-B or RS 485; normal operating temperature: 0 to 40.
Step S20, discretizing a differential equation with electrical characteristics according to the real-time digital simulation system to form a discretization adjoint model of N simulation models;
further, acquiring N differential equations with electrical characteristics according to the real-time digital simulation system;
and selecting a corresponding preset numerical integration method for discretization according to each differential equation with the electrical characteristics so as to form the discretization adjoint model of the N simulation models.
In the above embodiment, N of the N differential equations with electrical characteristics is an integer greater than or equal to 1, and it is understood that the differential equations with electrical characteristics in the real-time digital simulation system may be 1, 2, 4, 7, and the like, which is determined according to the actual situation of the substation and is not limited herein.
Step S30, acquiring the topological structure of the primary system, and constructing a discretization adjoint network of the primary system according to the discretization adjoint models of the N simulation models;
further, acquiring a topological structure of the primary system, and connecting the discretization adjoint models of the N simulation models;
and constructing a discretization adjoint network of the primary system according to the connected discretization adjoint models of the N simulation models.
Step S40, solving the voltage and current values of the primary system of the discrete time nodes according to the discretization accompanying network of the primary system;
further, acquiring a voltage-current equation set of discrete time nodes according to the discretization accompanying network of the primary system;
and solving the primary system voltage current value of the discrete time node according to the voltage current equation set of the discrete time node.
And step S50, taking the primary system voltage and current value of the discrete time node as the initial value of the primary system of the discrete time node at the next moment, and constructing the discretization accompanying network at the next moment according to the topological structure change of the primary system so as to obtain the discretization solution sequence of the primary system voltage and current value.
In addition, in the above embodiment, the substation real-time digital simulation system is functionally decomposed, wherein the functional elements model and program the peripheral module by using C + +, determine the input parameters and the output parameters of the elements, program the implementation source code of the peripheral module, and add the source code to the library after debugging. After all element modules are provided in the transformer cooperation teaching, the input of each module of the associated elements and the output of the relevant module are connected on the graphic programmable configuration tool software, and a timing scanning period is determined for each element. That is, in the above scheme, the scanning period is periodically determined for the merging unit, the intelligent terminal, the intelligent component, the protection control device and the like according to the merging unit, the intelligent terminal, the intelligent component and the protection control device of the bay layer which are connected with the SV network and the GOOSE network. Finally, after the configuration work is completed, the compiling function of the relevant tool software is operated, the connection errors are checked, and after all the errors are corrected, the configuration file of the device is output by the compiling program.
In addition, referring to fig. 4, which is a schematic flow diagram of data output in the real-time digital simulation system of the present invention, specifically, the simulation system is initialized after starting to operate, the data is received from the upper computer control software after being judged by communication interruption, the analysis data is output by combining with the read HMI data, the analog quantity point value is output by the optical fiber port after analysis, and finally, the operation is ended. Further, referring to fig. 5, in the scheme, in the data output, an analysis model is output according to the change of the digital quantity by combining a substation system teaching method, and then whether the output value needs to be changed is judged; and when the output value is not changed, the output is kept, and when the output value is changed, model calculation is carried out, the analog quantity point value is output, and the step of changing the digital quantity is returned to continue operation.
Referring to fig. 6, which is a schematic flow chart of data merging in the substation cooperative teaching apparatus according to the present invention, in combination with the substation cooperative teaching method, specifically, a GOOSE message is received, added to a current time value, and then the GOOSE message is analyzed, stored, merged, and then pushed into a stack. In addition, referring to fig. 7, another embodiment is to first receive the 9-1 message, add it to the current time value, and then analyze the 9-1 message to obtain the sampling value; at the moment, the sampling time is compared with the switching value time and the reverse running, then data are combined, and the last time is deduced, and the message is returned to continue to be analyzed to obtain the sampling value.
In summary, the scheme in the above embodiment can be implemented, and (1) the real-time digital simulation system can simulate any intelligent substation secondary system by changing the substation configuration file, support configuration and extension of the terminal device and SV network, GOOSE network, and the like, and can perform teaching experiments and research on any link. (2) The real-time digital simulation system configuration file reflects configuration information of the intelligent substation, and describes example configurations and communication parameters of all intelligent electronic equipment in the substation, communication configurations among IEDs, a primary system structure of the substation and other information; the analysis of any intelligent substation SCD file is supported, and the visual analysis of all IED communication connections is realized. (3) The functions, basic principles and functions of various secondary devices in an intelligent power station can be displayed, the action characteristics of the devices in different operation environments of the primary system are analyzed and researched, the comparison and summarization are carried out with the conclusion of the classroom teaching of the transformer substation, and the secondary devices can be subjected to model selection in an expandable manner, so that the design of the secondary system is completed. (4) The method can conveniently simulate primary faults (such as transformer turn-to-turn short circuit) with high dangerousness or destructiveness, and has a high safety advantage compared with a primary simulation system built by actual physical elements. (5) The simulation screen of the primary system of the transformer substation and the distribution network is provided for visually displaying the operation working conditions of the primary system, such as primary main wiring, tide, switch states and the like. (6) The intelligent transformer substation and the secondary part of the power distribution network are provided with real microcomputer protection measurement and control equipment, and SV networks, GOOSE networks, MMS networks and the like of the intelligent digital station are comprehensively supported. (7) The whole system can be flexibly and changeably in one-time wiring form, and the testability test and the analytic test of a typical system can be carried out without purchasing new equipment. (8) The real-time digital simulation system has no high voltage, and has the function of preventing the damage of the practical training system and personal injury caused by mistaken touch, mistaken setting and misoperation.
The technical scheme of the invention can achieve the following effects: (1) the comprehensive physical simulation of the intelligent power grid with information digitization, communication networking and protocol standardization is realized; (2) the learning, testing, researching and analyzing of the contents of three-layer two-network, communication and network equipment, IEC61850 protocol, intelligent power grid dispatching and the like are realized; (3) scenario reappearance of the intelligent power grid fault is achieved, and maintenance training of various intelligent devices can be completed; (4) the working process of the open digital device is displayed on an added display screen by adopting the open digital device, meanwhile, the open communication protocol is used for configuration and secondary development of the device, the working principle of the device is displayed while the working process is displayed, each configuration parameter can be adjusted, and illegal operation simulation is added. (5) The simulation primary system is realized by adopting a real-time digital simulation system, the primary wiring diagram modeling is input into the real-time digital simulation system, the transformer substation tide simulation and data output under different operation modes can be realized by matching with the change of the switch position, and the steady-state and transient-state operation conditions of the power system can be truly reflected. The primary wiring diagram can be set up at will according to the demand of experiment teaching, solves teaching content simplification, and teaching content such as intelligent substation configuration, intelligent device configuration, SCD documentation can't go on the scheduling problem.
Meanwhile, the technical scheme of the invention can provide an effective platform for the implementation of the teaching of the intelligent power grid information engineering of colleges and universities, make up the defects of the colleges and universities on a hardware platform and accelerate the conversion speed from theory to application; students in colleges and universities can more intuitively master basic theories and professional knowledge necessary for the intelligent substation technology; provides powerful guarantee and support for the society to cultivate compound advanced engineering technical talents.
In addition, referring to fig. 8, which is a schematic diagram of functional modules of the transformer substation cooperation teaching device according to the present invention, in an embodiment of the present invention, a transformer substation cooperation teaching device is further provided, where the transformer substation cooperation teaching device includes:
the system building module is used for inputting the modeling of the primary wiring diagram of the transformer substation into the real-time digital simulation system to build the primary system;
the discretization adjoint model module is used for discretizing a differential equation with electrical characteristics according to the real-time digital simulation system to form a discretization adjoint model of the N simulation models;
the discretization accompanying network module is used for acquiring the topological structure of the primary system and constructing a discretization accompanying network of the primary system according to the discretization accompanying models of the N simulation models;
the voltage and current solving module is used for solving the voltage and current value of the primary system of the discrete time node according to the discretization accompanying network of the primary system;
and the discrete solution sequence acquisition module is used for taking the primary system voltage and current value of the discrete time node as an initial value of the primary system of the discrete time node at the next moment, and constructing a discretization accompanying network at the next moment according to the topological structure change of the primary system so as to acquire the discrete solution sequence of the primary system voltage and current value.
Optionally, the system building module comprises: the method is used for obtaining the transformer substation power flow simulation and data output according to the change of the switch position under different operation modes. Further, the substation comprises a merging unit, an intelligent terminal, an intelligent assembly and a protective control device of a bay level which are connected according to an SV network and a GOOSE network, and controls data input and data output of the real-time digital simulation system.
Optionally, the discretized adjoint model module comprises:
the differential equation acquisition module is used for acquiring N differential equations with electrical characteristics according to the real-time digital simulation system;
the discretization adjoint model forming module is used for selecting a corresponding preset numerical integration method for discretization according to each differential equation with the electrical characteristics so as to form discretization adjoint models of the N simulation models; wherein N in the N differential equations with electrical characteristics is an integer greater than or equal to 1.
Optionally, the discretized companion network module comprises:
the discretization adjoint model connecting module is used for acquiring the topological structure of the primary system and connecting the discretization adjoint models of the N simulation models;
and the discretization accompanying network constructing module is used for constructing the discretization accompanying network of the primary system according to the discretization accompanying models of the N connected simulation models.
Optionally, the voltage current solving module comprises:
the voltage and current equation set acquisition module acquires a voltage and current equation set of discrete time nodes according to the discretization adjoint network of the primary system;
and the voltage-current equation set solving module is used for solving the primary system voltage-current value of the discrete time node according to the voltage-current equation set of the discrete time node.
The steps implemented by the functional modules of the transformer substation cooperative teaching device according to the present invention may refer to various embodiments of the transformer substation cooperative teaching method according to the present invention, and are not described herein again.
The present invention also provides a terminal device, including: the device comprises a memory, a processor, a communication bus and a substation cooperative teaching program stored on the memory, wherein the substation cooperative teaching program comprises the following steps:
the communication bus is used for realizing connection communication between the processor and the memory;
the processor is used for executing the transformer substation cooperative teaching program so as to realize the steps of the transformer substation cooperative teaching method in each embodiment.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, which is applied to a computer, and the computer-readable storage medium may be a non-volatile computer-readable storage medium, where a substation co-teaching program is stored on the computer-readable storage medium, and when being executed by a processor, the substation co-teaching program implements the steps of the substation co-teaching method described above.
The steps implemented when the substation cooperative teaching program running on the processor is executed may refer to each embodiment of the substation cooperative teaching method of the present invention, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A transformer substation collaborative teaching method is characterized by comprising the following steps:
modeling and inputting a primary wiring diagram of the transformer substation into a real-time digital simulation system to construct a primary system;
discretizing a differential equation with electrical characteristics according to the real-time digital simulation system to form discretization adjoint models of N simulation models;
acquiring a topological structure of the primary system, and constructing a discretization adjoint network of the primary system according to the discretization adjoint models of the N simulation models;
solving the voltage and current values of the primary system of discrete time nodes according to the discretization accompanying network of the primary system;
and taking the primary system voltage and current value of the discrete time node as the initial value of the primary system of the discrete time node at the next moment, and constructing a discretization accompanying network at the next moment according to the topological structure change of the primary system so as to obtain a discretization solution sequence of the primary system voltage and current value.
2. The substation coordination teaching method according to claim 1, wherein the step of inputting the modeling of the substation primary wiring diagram into the real-time digital simulation system, and the step of constructing the primary system comprises:
and under different operation modes, obtaining the transformer substation power flow simulation and data output according to the change of the switch position.
3. The substation collaborative teaching method according to claim 2, wherein the substation includes, but is not limited to, a merge unit, an intelligent terminal, an intelligent component and a protection control device of a bay level connected according to an SV network and a GOOSE network, and controls data input and data output of the real-time digital simulation system.
4. The substation coordination teaching method according to claim 1, wherein said step of discretizing a differential equation having electrical characteristics according to said real-time digital simulation system to form a discretized adjoint model of N simulation models comprises:
acquiring N differential equations with electrical characteristics according to the real-time digital simulation system;
and selecting a corresponding preset numerical integration method for discretization according to each differential equation with the electrical characteristics so as to form the discretization adjoint model of the N simulation models.
5. The substation co-teaching method according to claim 4, wherein N of the N differential equations with electrical characteristics is an integer greater than or equal to 1.
6. The substation collaborative teaching method according to claim 1, wherein the step of obtaining the topology structure of the primary system and constructing the discretized adjoint network of the primary system according to the discretized adjoint models of the N simulation models comprises:
acquiring a topological structure of the primary system, and connecting discretization adjoint models of the N simulation models;
and constructing a discretization adjoint network of the primary system according to the connected discretization adjoint models of the N simulation models.
7. The substation collaborative teaching method according to claim 1, wherein the solving of the primary system voltage current values of discrete time nodes according to the discretization adjoint network of the primary system comprises:
acquiring a voltage-current equation set of discrete time nodes according to the discretization accompanying network of the primary system;
and solving the primary system voltage current value of the discrete time node according to the voltage current equation set of the discrete time node.
8. The transformer substation cooperative teaching device is characterized by comprising:
the system building module is used for inputting the modeling of the primary wiring diagram of the transformer substation into the real-time digital simulation system to build the primary system;
the discretization adjoint model module is used for discretizing a differential equation with electrical characteristics according to the real-time digital simulation system to form a discretization adjoint model of the N simulation models;
the discretization accompanying network module is used for acquiring the topological structure of the primary system and constructing a discretization accompanying network of the primary system according to the discretization accompanying models of the N simulation models;
the voltage and current solving module is used for solving the voltage and current value of the primary system of the discrete time node according to the discretization accompanying network of the primary system;
and the discrete solution sequence acquisition module is used for taking the primary system voltage and current value of the discrete time node as an initial value of the primary system of the discrete time node at the next moment, and constructing a discretization accompanying network at the next moment according to the topological structure change of the primary system so as to acquire the discrete solution sequence of the primary system voltage and current value.
9. A terminal device, characterized in that the terminal device comprises: a memory, a processor and a substation co-education program stored on the memory and executable on the processor, the substation co-education program when executed by the processor implementing the steps of the substation co-education method of any one of claims 1 to 7.
10. A readable storage medium, characterized in that the readable storage medium has stored thereon a computer program which, when being executed by a processor, realizes the steps of the substation co-education method according to any one of claims 1 to 7.
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