Feeder automation based on hand-in-hand line and action logic demonstration teaching aid

Abstract

The utility model relates to training demonstration teaching aid technical field, proposes a kind of feeder automation and action logic demonstration teaching aid based on hand in hand line, including main control unit and hand in hand line;Hand in hand line includes the line of two groups of sectional switch composition, sectional switch composition line includes a plurality of sectional switch connected in series, the control area of each sectional switch is connected with the setting of light box, two sectional switch composition lines are connected by tie-in switch and constitute hand in hand line;The sectional switch and tie-in switch are respectively using true type switch;Sectional switch, tie-in switch are connected with main control unit respectively, and switch operation is carried out by the control of main control unit.The utility model introduces true type switch, improves the operation feeling and practical training experience of demonstration teaching aid, the setting of light box enables student to intuitively master each area electric power state, improves teaching visibility and understanding efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of training demonstration teaching aids, specifically to a demonstration teaching aid for feeder automation and action logic based on a daisy-chain circuit. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] In the training of power distribution network operation and maintenance, an accurate understanding of the principles and operating logic of feeder automation (FA) systems, especially daisy-chain line structures, is of great significance for improving the professional skills and emergency response capabilities of power workers. Therefore, specialized demonstration aids are often used in teaching and training to simulate typical scenarios such as switch operation, fault isolation, and load transfer, to aid in understanding and practicing actual operating procedures.

[0004] Existing demonstration tools for feeder automation mainly consist of simulated circuit diagrams and switch models. They primarily simulate operational logic through mechanical structures and manual operation, lacking intuitive power on / off status indicators, making it difficult for learners to accurately determine the power status of different areas. Furthermore, most existing devices use model switches, lacking the tactile feel of real equipment. While some teaching systems use physical switches, frequent operation can easily cause vibrations that loosen or detach the switch nameplates or operation markings, affecting their lifespan and teaching effectiveness, and compromising training consistency and safety. Utility Model Content

[0005] To address the aforementioned problems, this invention proposes a teaching aid for feeder automation and action logic demonstration based on a daisy-chain circuit. It employs realistic switches, intuitive lightbox indicators, and flexible signage connection structures to comprehensively enhance the simulation accuracy, interactive teaching, and structural stability of the teaching aid.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: One or more embodiments provide a demonstration teaching tool for feeder automation and action logic based on a daisy-chain circuit, including a main control unit and a daisy-chain circuit. The daisy-chain circuit includes a circuit composed of two sets of segmented switches. The circuit composed of segmented switches includes multiple segmented switches connected in series. Each segmented switch has a light box connected to its control area. The two sets of segmented switches are connected by a connecting switch to form the daisy-chain circuit. The segmented switches and the connecting switch are real-type switches. The segmented switches and the connecting switch are respectively connected to the main control unit and are operated by the main control unit.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention improves the tactile feel and practical training experience of the demonstration teaching aids by introducing a realistic switch, effectively overcoming the problem that traditional model switches cannot accurately reflect the actual operating force and structure. The lightbox allows trainees to intuitively grasp the power status of each area, enhancing teaching visibility and comprehension efficiency. By constructing a typical daisy-chain circuit structure, the action logic and control strategies of feeder automation can be clearly demonstrated, enhancing the relevance and systematic nature of teaching, making it particularly suitable for power system operation training and emergency operation drills.

[0008] The advantages and additional benefits of this utility model will be described in detail in the following specific embodiments. Attached Figure Description

[0009] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute a limitation thereof.

[0010] Figure 1 This is a schematic diagram of the structure of the daisy-chain circuit in the demonstration teaching aid of feeder automation and action logic based on the daisy-chain circuit in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the structure of the actual switch with an identification plate in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram illustrating the setting of faults in the teaching aid according to Embodiment 1 of this utility model; Among them: 1. Real-type switch; 2. Helical spring. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0013] It should be noted that the terminology used herein is for descriptive purposes only and is not intended to limit the exemplary embodiments according to this invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. It should be noted that, without conflict, the various embodiments and features within those embodiments can be combined with each other. The embodiments will now be described in detail with reference to the accompanying drawings.

[0014] Example 1 In one or more of the technical solutions disclosed in the embodiments, such as Figures 1 to 3 As shown, the demonstration teaching aid for feeder automation and action logic based on a daisy-chain circuit includes a main control unit and a daisy-chain circuit. The daisy-chain circuit consists of two sets of segmented switches, each consisting of multiple segmented switches connected in series. Each segmented switch has a light box connected to its control area. The two sets of segmented switches are connected by a connecting switch to form the daisy-chain circuit. The segmented switches and the connecting switch are real-type switches. The segmented switches and the connecting switch are connected to the main control unit and are operated by the main control unit.

[0015] This implementation uses multiple sectionalizing switches connected in series to simulate the segmented structure of a feeder line, and a light box is placed in the control area of ​​each sectionalizing switch to visually indicate the power on / off status. Two sets of sectionalizing switches form a daisy-chain circuit structure through a connecting switch, allowing the teaching aid to accurately simulate typical daisy-chain power supply methods in actual power distribution networks. In this structure, a real-model switch 1 replaces the traditional model switch to enhance the realism of operation and provide tactile feedback close to actual operation. The entire system simulates typical fault isolation and load transfer logic, facilitating the demonstration of operational procedures under different operating scenarios during teaching.

[0016] This implementation method, by introducing a real-life switch (1), improves the tactile feel and practical training experience of the demonstration teaching aid, effectively overcoming the problem that traditional model switches cannot realistically reflect the actual operating force and structure. The lightbox allows trainees to intuitively grasp the power status of each area, enhancing teaching visibility and comprehension efficiency. By constructing a typical daisy-chain circuit structure, the operating logic and control strategies of feeder automation can be clearly demonstrated, enhancing the relevance and systematic nature of teaching, making it particularly suitable for power system operation training and emergency operation drills.

[0017] Specifically, the real-type switch 1 is a real power grid switching device; the real-type switch 1 uses a miniaturized pole-mounted circuit breaker or load switch operating mechanism as the basic component, and includes at least the opening coil, closing coil, opening and closing contacts and operating mechanism.

[0018] In some embodiments, a nameplate is connected to the upper end of the real-type switch 1 via an elastic component; the nameplate is used to clearly indicate the switch number, control area or operation function during teaching demonstrations.

[0019] The sign is fixed to the upper end of the real-type switch 1 via a connecting bracket and an elastic component. One end of the elastic component is connected to the housing of the real-type switch 1, and the other end is connected to the sign, forming a flexible support structure. When the operating mechanism of the real-type switch 1 is activated, such as during closing or opening, the vibration caused by the elastic component is buffered and absorbed, thereby keeping the sign relatively stable and preventing it from shifting or falling. The label content can be screen-printed, laser-engraved, or a magnetic label, facilitating replacement and updating. This structure effectively improves the durability and information readability of the teaching aid during frequent operation. The sign is securely fixed but not rigidly connected, preventing breakage or loosening due to vibration; the elastic connection structure also has a certain impact resistance, extending the service life of the teaching aid and improving safety and ease of maintenance.

[0020] The elastic component absorbs vibrations during switch operation, preventing the sign from loosening or falling off due to violent mechanical movements. Optionally, the elastic component can be made of materials such as springs, rubber, or silicone. Furthermore, the elastic component is a helical spring 2, and the diameter of the helical spring 2 increases sequentially from top to bottom along the longitudinal direction to form a conical helical structure; The spring structure in this embodiment offers superior cushioning and fatigue resistance compared to ordinary constant-diameter springs. The progressively increasing helix diameter from top to bottom results in a gentler mechanical response during spring deformation, preventing excessive swaying or deflection of the signboard due to high-frequency vibrations, thus ensuring stable and clear display of teaching information. Furthermore, this structure saves installation space while maintaining equal physical strength, making it suitable for compact teaching aid systems with multiple devices centrally located in classrooms or training rooms.

[0021] In a further technical solution, the signboard includes a mounting base and a display object. The mounting base is connected to the top of the real-type switch 1 and is flexibly installed through an elastic component. The display object is installed on the mounting base. Specifically, the label is used to display the switch's serial number, name, and functional information. Optionally, the label is a replaceable card, which can be made of PVC, acrylic, or laminated paper. The replaceable card has the switch name, serial number, and control area information printed on its surface.

[0022] This structure features a modular design for the signage, facilitating maintenance and replacement while enhancing the flexibility and professionalism of information display. Card-style signage allows for rapid updates to the displayed information based on different course content, meeting the needs of multi-scenario training. The fixed base provides stable support, and the flexible connection structure effectively mitigates vibration transmission during operation, ensuring stable and legible signage. Furthermore, this design enhances the human-computer interaction of the teaching aid, improving teaching efficiency and user experience.

[0023] In some embodiments, the bottom of the mounting base is detachably connected to the upper end of the elastic component, and the top of the mounting base is provided with a slot or clamping structure for securing the marker. The detachable connection can be achieved through screws, clips, or adhesive. Optionally, the mounting base for the sign can be a one-piece molded or detachable structure; The detachable structure includes multiple sheet-like structures, with interlocking structures between them to form a space for placing the sign; the interlocking structures include buckles and slots.

[0024] In one possible implementation, the light box is located in the control area of ​​each sectionalizing switch, correspondingly indicating the power on / off state of that control area. The light box includes a transparent housing, inside which are disposed a mounting bracket, a light-emitting unit, and a power interface, which is connected to the circuit connected to the sectionalizing switch. Optionally, the light-emitting unit is preferably an LED light group, which can use multiple colors to distinguish the power-on and power-off states by color, or by the on and off states of the light. Optionally, the transparent housing is made of plastic materials such as acrylic or PC, with partition markings and power status diagrams printed on the surface to clearly show the operating status of the corresponding circuits.

[0025] It is feasible; the controller of the main control unit can be a high-performance microcontroller, such as a PLC or an STM32 series microcontroller, as the FA analog master station.

[0026] In one possible implementation, an existing fault setting system can be used, such as the AmatrolFaultPro fault injection training system. The software interface allows users to click or mark fault locations on the teaching panel circuit diagram, thereby activating the built-in fault injection module as a fault setting subsystem for teaching purposes.

[0027] A specific example circuit structure, such as Figure 1 and Figure 3 As shown, two independent 10kV radial lines are connected at their ends by a normally open tie switch Link, forming a daisy-chain network.

[0028] Line L1 is powered by the 10kV I section busbar, and the sectionalizing switches KA, KB, and KC are connected in series to supply power to sections A, B, and C, respectively.

[0029] Line L2 is powered by the 10kV Section II busbar, and the sectionalizing switches KD, KE, KF and KG are connected in series to supply power to sections D, E, F and G respectively.

[0030] The connecting switch K-Link is located between the sectionalizing switches KC and KF. Under normal operation, it is in the open state, i.e., normally open.

[0031] like Figure 3 This document provides a specific demonstration and training example. Section E is set as a permanent fault. The main control unit issues a remote control command via the communication channel: trip section switch KE (confirm tripping) and keep section switch KD in the tripped state. Fault point E is completely isolated. Light boxes D, E, F, and G are turned off; fault section isolation is achieved. Using the existing power grid system's non-fault area power restoration logic, the main control unit detects voltage on the K-Link side (line L1 side) and issues a closing command to the K-Link. The K-Link actually closes, a closing sound can be heard, and the K-Link switch points to the closed position. Power is supplied to sections F and G through line L1. This training content is only an example; specific training content can be configured as needed.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0033] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A teaching aid for demonstrating feeder automation and motion logic based on daisy-chain circuits, characterized in that: Including the main control unit and the daisy-chain wiring; The daisy-chain circuit consists of two sets of segmented switches. Each set of segmented switches comprises multiple segments connected in series. Each segmented switch has a light box connected to its control area. The two sets of segmented switches are connected by a connecting switch to form the daisy-chain circuit. The segmented switches and connecting switches are all real-type switches. The segmented switches and connecting switches are connected to the main control unit and are operated by the main control unit.

2. The demonstration teaching aid for feeder automation and action logic based on daisy-chain circuits as described in claim 1, characterized in that: The top of the real-type switch is connected to an identification plate via a flexible component; the identification plate is used to clearly indicate the switch number, control area or operation function during teaching demonstrations.

3. The demonstration teaching aid for feeder automation and action logic based on daisy-chain circuits as described in claim 2, characterized in that: The elastic component is a spring, rubber, or silicone.

4. The demonstration teaching aid for feeder automation and action logic based on daisy-chain circuits as described in claim 2, characterized in that: The elastic component is a helical spring, and the diameter of the helical spring increases sequentially from top to bottom along the longitudinal direction to form a conical helical structure.

5. The feeder automation and motion logic demonstration teaching aid based on daisy-chain circuits as described in claim 2, characterized in that: The sign includes a mounting base and a display object. The mounting base is connected to the top of the real-type switch and is flexibly installed through an elastic component. The display object is installed on the mounting base.

6. The demonstration teaching aid for feeder automation and action logic based on daisy-chain circuits as described in claim 5, characterized in that: The identification is a replaceable card made of PVC, acrylic, or laminated paper.

7. The demonstration teaching aid for feeder automation and action logic based on daisy-chain circuits as described in claim 5, characterized in that: The bottom of the mounting base is detachably connected to the upper end of the elastic component, and the top of the mounting base is provided with a slot or clamping structure for fixing the marker.

8. The feeder automation and motion logic demonstration teaching aid based on daisy-chain circuits as described in claim 1, characterized in that: The mounting base for the sign can be either a one-piece molded structure or a detachable structure.

9. The demonstration teaching aid for feeder automation and action logic based on daisy-chain circuits as described in claim 1, characterized in that: The light box includes a transparent shell, inside which are installed mounting brackets, light-emitting units, and a power interface, which is connected to the circuit of the sectionalizing switch.

10. The demonstration teaching aid for feeder automation and action logic based on daisy-chain circuits as described in claim 1, characterized in that: The light-emitting unit uses LED light groups.

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