CN115497364A - Method and system for switching preset logic of power distribution network moving platform multi-mode terminal - Google Patents
Method and system for switching preset logic of power distribution network moving platform multi-mode terminal Download PDFInfo
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Abstract
The invention discloses a method and a system for switching preset logics of a multi-mode terminal of a power distribution network moving-mode platform, which specifically comprise the steps of setting system modes between an integrated management system and the multi-mode terminal through a communication protocol, and numbering different system modes; the integrated management system sends out a system mode switching instruction; the multimode terminal receives the switching instruction, and quits all the function pressing plates from being sequentially set and downloaded with fixed values, parameters and topology information; the system mode switch is completed. By utilizing the multimode terminal capable of supporting various feeder automation logics, the invention can realize various feeder automation logics, and besides, the comprehensive management system and the multimode terminal are in communication connection, so that the terminal preset logics can be flexibly switched and managed, and related experiments for testing the influence of the distributed energy sources accessing the power distribution network can be carried out.
Description
Technical Field
The invention relates to the technical field of power distribution network moving moulds, in particular to a method and a system for switching preset logics of a power distribution network moving mould platform multi-mode terminal.
Background
The distribution terminal device that current distribution network movable mould platform used has following problem at present: the traditional terminal configured in the dynamic simulation laboratory supports fewer feeder automation logics and cannot cover most of the feeder automation realization logics, so that the dynamic simulation experiment platform cannot realize certain experiment scenes; in complicated distribution network, distribution terminal passes through feeder automation and keeps apart the trouble district section that takes place the circuit and accomplish the back, owing to there are a plurality of contact switches, and the load changes the optional route of confession more, and the operation mode is nimble, and traditional distribution terminal is difficult to find suitable power supply and resumes the route.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and title of the application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems associated with power distribution terminal devices used in existing power distribution network moving mold platforms.
Therefore, the problem to be solved by the present invention is how to provide a method and a system for switching preset logic of a power distribution network moving platform multi-mode terminal.
In order to solve the technical problems, the invention provides the following technical scheme: a method and a system for switching preset logics of a power distribution network moving-die platform multi-mode terminal are disclosed, wherein the moving-die platform comprises an integrated management system and the multi-mode terminal, and the specific steps comprise that the integrated management system and the multi-mode terminal set system modes through communication protocols and number different system modes; the integrated management system sends out a system mode switching instruction; the multi-mode terminal receives the switching instruction and quits all the functional pressing plates; setting and downloading fixed values, parameters and topology information in sequence; the system mode switch is completed.
As an optimal scheme of the method and the system for switching the preset logic of the power distribution network moving-die platform multi-mode terminal, the method comprises the following steps: the multi-mode terminal supports multiple feeder automation logic.
As an optimal scheme of the method and the system for switching the preset logic of the power distribution network moving-die platform multi-mode terminal, the method comprises the following steps: the system mode has a correspondence with the feeder automation logic.
As an optimal scheme of the method and the system for switching the preset logic of the power distribution network moving-die platform multi-mode terminal, the method comprises the following steps: the feeder automation logic comprises a voltage time type, a voltage current type, a main station concentration type, an intelligent distribution type, a closing quick-break type and a self-adaptive comprehensive type.
As an optimal scheme of the method and the system for switching the preset logic of the power distribution network moving-die platform multi-mode terminal, the method comprises the following steps: the fixed value is specifically the fixed value of the control field in different system modes, and comprises a protection fixed value, a communication mode fixed value, a switch tripping time fixed value and an input/exit fixed value of each function pressing plate.
As an optimal scheme of the method and the system for switching the preset logic of the power distribution network moving-die platform multi-mode terminal, the method comprises the following steps: the parameters include one-time reclosing time, X time limit, Y time limit and Z time limit.
As an optimal scheme of the method and the system for switching the preset logic of the power distribution network moving-die platform multi-mode terminal, the method comprises the following steps: the topology information comprises the switching parameters of the terminal, the switching parameters adjacent to the terminal, the switching parameters of the head end of the line and the interconnection switching parameters.
As an optimal scheme of the method and the system for switching the preset logic of the power distribution network moving-die platform multi-mode terminal, the method comprises the following steps: the switch parameters comprise a switch name, a switch ID, an IP address corresponding to the switch, a switch position, a switch left terminal number and a switch right terminal number.
Based on the method and the system for switching the preset logic of the power distribution network moving platform multi-mode terminal, the invention also provides a system for flexibly switching the preset logic of the power distribution network moving platform multi-mode terminal, which comprises,
the numbering module is used for setting system modes by the integrated management system and the multi-mode terminal through a communication protocol and numbering different system modes;
the control module is used for sending a system mode switching instruction by the comprehensive management system;
and the execution module is used for quitting all the functional pressing plates after the multi-mode terminal receives the switching instruction, and sequentially setting and downloading the fixed value and the parameter of the multi-mode terminal and drawing the constructed net rack topology information by the comprehensive management system.
The preferable scheme of the system for flexibly switching the preset logic by the multi-mode terminal of the power distribution network moving platform is as follows: the multi-mode terminal comprises hardware and a software platform, wherein the hardware consists of a chip part and a device part, the chip part adopts a high-integration chip, and the device part comprises a CPU (central processing unit) sub-module, a power supply sub-module, an input sub-module, an output sub-module and an analog quantity acquisition sub-module.
The invention has the beneficial effects that: by utilizing the multimode terminal capable of supporting various feeder automation logics, the invention can realize various feeder automation logics, including a voltage time type, a voltage current type, a master station centralized type, an intelligent distribution type, a switching-on quick-break type and a self-adaptive comprehensive type. In addition, the comprehensive management system and the multi-mode terminal are in communication connection, flexible switching and management can be performed on terminal preset logics, and related experiments for testing the influence of distributed energy sources accessing the power distribution network can be performed.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a flow chart of mode switching of a multimode terminal.
Fig. 2 is a schematic diagram of the hardware design of the multimode terminal.
Fig. 3 is a schematic diagram of the design of the multimode terminal hardware.
Fig. 4 is a flow chart of analog acquisition.
Fig. 5 is a flow chart of the input amount acquisition.
Fig. 6 is a flowchart of the output amount output.
Fig. 7 is a schematic diagram of multimode terminal software design.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 7, a first embodiment of the present invention provides a method and a system for switching a preset logic of a multi-mode terminal of a power distribution network moving platform, where the multi-mode platform includes a multi-mode terminal and a comprehensive management system, and the multi-mode terminal and the comprehensive management system are communicatively connected to each other to implement switching of the preset logic of the multi-mode terminal, and the specific steps are,
s1: a system mode is set between the integrated management system and the multimode terminal through a communication protocol, and different system modes are numbered, such as a system mode 1, a system mode 2, a system mode 3 and the like.
It should be noted that the multimode terminal supports various feeder automation logics, including a voltage-time type, a voltage-current type, a master station centralized type, an intelligent distribution type, a switching-on quick-break type, and an adaptive synthesis type, and different system modes correspond to different feeder automation logics, for example, the system mode 1 is the voltage-time type, the system mode 2 is the switching-on quick-break type, and the system mode 3 is the intelligent distribution type.
Furthermore, the multi-mode terminal comprises a hardware and a software platform, wherein the hardware consists of a chip part and a device part, and the chip part adopts a high-integration chip and can complete the functions of power distribution network protection control and the like; the device part comprises a CPU submodule, a power supply submodule, an input submodule, an output submodule and an analog quantity acquisition submodule, wherein all submodules are mutually connected through a bus board.
Specifically, the connection flow of each sub-module and the CPU sub-module is as follows:
the analog quantity acquisition submodule consists of a plurality of analog quantity channels. Each analog channel finishes input, conversion and filtering of an analog signal and then enters an AD acquisition circuit, the AD acquisition circuit is communicated with a bus controller on a CPU sub-module, the CPU sub-module finishes signal acquisition and processing, and the analog channels are isolated through a mutual inductor.
The input quantity acquisition submodule consists of a plurality of input quantity input channels. The input signal of the input quantity enters a bus controller on the CPU submodule after passing through a protection circuit, a filter circuit and photoelectric isolation, and the CPU submodule finishes the acquisition and processing of the signal.
The output quantity control submodule consists of a plurality of output quantity output channels. The CPU submodule sends out control signals to the bus controller, the bus controller outputs signals, and the signals drive the relay through the photoelectric isolation device.
Further, the software platform of the multimode terminal is divided into three layers according to the software hierarchy: the hardware packaging method comprises a driving layer, a platform layer and an application layer, wherein the driving layer is used for packaging hardware, the platform layer is used for completing the operation of equipment through an interface of the driving layer, and the platform layer is an intermediate connector of an operating system and the application layer and is arranged on the driving layer.
The driving layer provides hardware driving for the CPU, including serial bus, MMI, interrupt, ethernet, etc.; the platform layer comprises a user-defined user standard interface (API), a real-time database, a real-time operating system and the like; the application layer comprises power distribution network protection, self-healing control, homonymy end checking, convention and the like.
The application layer subsystem mainly realizes the function of the quick self-healing terminal device. The tasks run independently, functional coupling is reduced, if task interaction is needed, the tasks are realized by adopting an event sending mode as much as possible, and the data transmission among the tasks is reduced by reducing a message transmission mode.
The three major subsystems of drive layer, platform layer, application layer, the module of every layer of system inside should reach function auto-gathering, reduces the coupling with other modules on this layer, only provides the interface to the upper strata, guarantees that the procedure flow is clear, and the reusability is strong.
S2: the integrated management system sends out a system mode switching instruction.
It should be noted that, when the feeder automation logic switching is performed, the multi-mode terminal receives a system mode switching instruction, and exits all the function pressing plates, so as to prevent the switching between different modes from being disordered.
S3: setting and downloading fixed values, parameters and topology information in sequence.
It should be noted that the fixed value is specifically a fixed value of a control field in different feeder automation modes, and includes a protection fixed value, a communication mode fixed value, a switch trip time fixed value, and an input/exit fixed value of each function press plate.
It should be noted that the parameters include one-time reclosing time, X time limit, Y time limit and Z time limit, the parameters such as the number of switches, the switch positions, the setting of interconnection switches and the like of different topology network structures are different, and the fixed value parameters are different in different network topology structures in the same feeder automation mode, so that the specific parameters of each fixed value need to be set independently in different modes.
It should be noted that the network structure topology information created by drawing the download integrated management system includes the switch parameters of the terminal itself, the switch parameters adjacent to the terminal, the switch parameters at the head end of the line, and the interconnection switch parameters. The switch parameters comprise switch parameters such as switch name, switch ID, IP address corresponding to the switch, switch position, switch left terminal number and switch right terminal number.
S4: and the system mode switching is completed, namely, the feeder automation logic switching under the current topological network is realized.
Based on the method for switching the preset logic of the power distribution network moving-mode platform multi-mode terminal, the invention also provides a system for switching the preset logic of the power distribution network moving-mode platform multi-mode terminal, which specifically comprises the following steps:
the numbering module is used for setting system modes by the integrated management system and the multi-mode terminal through a communication protocol and numbering different system modes;
the control module is used for sending a system mode switching instruction by the comprehensive management system;
and the execution module is used for quitting all the functional pressing plates after the multi-mode terminal receives the switching instruction, and sequentially setting and downloading the fixed value and the parameter of the multi-mode terminal and drawing the constructed net rack topology information by the comprehensive management system.
The invention can realize various feeder automation logics by utilizing the multimode terminal which can support various feeder automation logics, including a voltage time type, a voltage current type, a master station centralized type, an intelligent distribution type, a switching-on quick-break type and a self-adaptive comprehensive type. In addition, the comprehensive management system is in communication connection with the multimode terminal, flexible switching and management can be performed on preset logics of the terminal, and related experiments for testing the influence of distributed energy sources accessing the power distribution network can be performed.
Example 2
Referring to fig. 1 to 7, in an embodiment of the invention, an east wind hydropower station is located in the upstream of Guizhou province and Wujiang province in China, and is the level 1 of main current cascade development of a Wujiang hydropower base basin, feeder automation logics currently used by a power distribution network in the hydropower station comprise a voltage time type, a voltage current type, a main station concentrated type and a switching-on quick-break type, and the feeder automation is an important component of power distribution network automation.
The fault recovery time of the existing distribution network is over 30s or even minutes, and users with higher requirements on power supply reliability cannot be met, but after the invention is practically applied to an east wind hydropower station, when a power distribution terminal has a fault during operation, the device judges within 5 cycles, and a time limit is also needed for ensuring the accuracy of fault states of the opposite side and the adjacent side, so that the fault isolation from the fault occurrence to the fault isolation is about 0.5 s, the recovery power supply of a healthy section is about 5 s, and the reliability of the operation of the distribution network is greatly improved.
Based on the technical scheme, the method can also support the verification of the feeder automation function of the complex distribution network comprising a plurality of power supply points and a plurality of interconnection switches, and the multimode terminals are subjected to unified parameter modeling in the moving die platform integrated management system, so that the integrated management system can set the network state through the multimode terminals, dynamically change the equipment output in the test process by adding trigger control points, and simulate the curve change of the power supply or load equipment output through sequence control. The feeder automation logic of the multimode terminal can be set, and the feeder automation logic and various test conditions are superposed to form a comprehensive test scheme.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The scheme in the embodiment of the application can be implemented by adopting various computer languages, such as object-oriented programming language Java and transliterated scripting language JavaScript.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A method for switching preset logic of a power distribution network moving platform multi-mode terminal is characterized by comprising the following steps: the dynamic model platform comprises a comprehensive management system and a multi-mode terminal, and comprises the following specific steps,
the integrated management system and the multimode terminal set system modes through communication protocols and number different system modes;
the integrated management system sends out a system mode switching instruction;
the multi-mode terminal receives the switching instruction and quits all the functional pressing plates;
setting and downloading fixed values, parameters and topology information in sequence;
the system mode switch is completed.
2. The method for switching the preset logic of the power distribution network moving-die platform multi-mode terminal according to claim 1, wherein the method comprises the following steps: the multi-mode terminal supports multiple feeder automation logic.
3. The method for switching the preset logic of the power distribution network moving-die platform multi-mode terminal, according to claim 2, is characterized in that: the system mode has a correspondence with the feeder automation logic.
4. The method for switching the preset logic of the power distribution network moving-die platform multi-mode terminal, according to claim 3, is characterized in that: the feeder automation logic comprises a voltage time type, a voltage current type, a main station concentration type, an intelligent distribution type, a closing quick-break type and a self-adaptive comprehensive type.
5. The method for switching the preset logic of the multi-mode terminal of the power distribution network dynamic platform, according to claim 1, wherein the method comprises the following steps: the fixed values are fixed values of control fields in different system modes, and comprise a protection fixed value, a communication mode fixed value, a switch tripping time fixed value and an input/exit fixed value of each function pressing plate.
6. The method for switching the preset logic of the power distribution network moving-die platform multi-mode terminal according to claim 1, wherein the method comprises the following steps: the parameters include one-time reclosing time, X time limit, Y time limit and Z time limit.
7. The method for switching the preset logic of the power distribution network moving-die platform multi-mode terminal according to claim 1, wherein the method comprises the following steps: the topology information comprises the switching parameters of the terminal, the switching parameters adjacent to the terminal, the switching parameters of the head end of the line and the interconnection switching parameters.
8. The method for switching the preset logic of the power distribution network moving-die platform multi-mode terminal according to claim 1, wherein the method comprises the following steps: the switch parameters comprise a switch name, a switch ID, an IP address corresponding to the switch, a switch position, a switch left terminal number and a switch right terminal number.
9. A system for switching preset logic of a power distribution network moving platform multi-mode terminal, comprising the method for switching preset logic of a power distribution network moving platform multi-mode terminal as claimed in claims 1 to 8, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the numbering module sets system modes for communication protocols through the integrated management system and the multi-mode terminal and numbers different system modes;
the control module sends a system mode switching instruction through the comprehensive management system;
and the execution module receives the switching instruction through the multimode terminal, quits all the functional pressing plates, sequentially sets and downloads the fixed values and parameters of the multimode terminal and draws the constructed net rack topology information by the comprehensive management system.
10. The system for flexibly switching the preset logic of the multi-mode terminal of the power distribution network dynamic platform according to claim 9, wherein: the multi-mode terminal comprises hardware and a software platform, wherein the hardware consists of a chip part and a device part, the chip part adopts a high-integration chip, and the device part comprises a CPU (central processing unit) sub-module, a power supply sub-module, an input sub-module, an output sub-module and an analog quantity acquisition sub-module.
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