Feeder automation terminal on-site online detection device based on multifunctional fusion

Abstract

The utility model discloses a feeder automation terminal on-site online detection device based on multifunctional fusion, which comprises a device body, and the device body is provided with an interface output assembly and a standby protection assembly. The interface output assembly comprises various types of FTU test special aviation plug interfaces, analog switch and non-energy-storage switch position special aviation plug interfaces, an analog switch opening output operation key and an analog switch closing output operation key. The standby protection assembly comprises a standby protection display screen, a standby protection connection aviation socket, a primary switch opening operation button and a primary switch closing operation button. According to the utility model, through the interface output assembly and the standby protection assembly, the problems that in three-year regular inspection of an on-site operation and maintenance feeder automation system, there are many feeder automation terminal outdoor test devices, test interfaces cannot be plug-and-play, and a one-time switch operates without standby protection in a short time are solved; and the on-site online operation and maintenance efficiency of the feeder line automatic terminal is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of on-site testing of feeder automation terminals, and in particular relates to an on-site online detection device for feeder automation terminals based on multi-function fusion. Background Art

[0002] With the large-scale construction of distribution automation systems, more than a thousand sets of various types of feeder automation terminal (FTU) equipment are newly installed every year. Based on the three-year regular inspection, huge financial, human and material resources are required every year to carry out large-scale on-site operation, maintenance, repair and debugging of the distribution automation terminals that have been online for three years. The current operation and maintenance work mainly uses relay protection testers for debugging, but the maintenance of distribution automation terminals running on-site requires live maintenance operations, which has certain requirements for technical means and test equipment. That is, it must be possible to achieve efficient maintenance within an effective time while ensuring the safety of personnel and equipment. This places extremely high demands on the functions, performance and test interfaces of the on-site equipment. At present, conventional on-site maintenance devices for feeder automation terminals face the following problems:

[0003] (1) The feeder automation terminals currently in operation are classified into electromagnetic, electronic, and digital types according to the sampling type. Different types of feeder automation terminals require different test equipment. Conventional feeder automation testers require an AC 220V power supply, so a large number of test equipment must be carried during on-site testing.

[0004] (2) Existing feeder automation testers usually have banana plug interfaces, but the feeder automation terminal aviation plug interface does not match the tester banana plug interface and requires conversion, which makes plug-and-play impossible and the test environment setup extremely time-consuming.

[0005] (3) During the online detection of the feeder automation terminal, the connection with the primary switch quantity needs to be disconnected. From a safety perspective, the corresponding primary switch needs to be equipped with backup protection to prevent power accidents. However, the current feeder automation terminal lacks dedicated backup protection functions and interfaces. Utility Model Content

[0006] In order to solve the technical problems existing in the prior art, the utility model provides an on-site online detection device for feeder automation terminals based on multi-function fusion, which solves the problems faced by the on-site operation and maintenance feeder automation system during the three-year regular inspection, such as the large number of outdoor test equipment required for feeder automation terminals, the inability to plug and play test interfaces, and the short-term operation of primary switches without backup protection, so as to improve the efficiency of on-site online operation and maintenance inspection of feeder automation terminals.

[0007] The technical solutions adopted by the present invention to solve the above technical problems are as follows:

[0008] A feeder automation terminal on-site online detection device based on multi-function fusion, the device includes

[0009] In a first aspect, the utility model provides a feeder automation terminal on-site online detection device based on multi-functional fusion, the device comprising a device body, the device body being provided with an interface output component and a backup protection component;

[0010] The interface output components include various types of dedicated aviation plug interfaces for FTU testing, dedicated aviation plug interfaces for analog switches and non-energy-storage switch positions, analog switch opening output operation buttons, and analog switch closing output operation buttons; various types of dedicated aviation plug interfaces for FTU testing output electrical quantity signals; dedicated aviation plug interfaces for analog switches and non-energy-storage switch positions output analog switches and switch quantity signals; the dedicated aviation plug interfaces for analog switches and non-energy-storage switch positions are equipped with a primary analog switch, and opening and closing operations are performed through the analog switch opening output operation buttons and the analog switch closing output operation buttons;

[0011] The backup protection component includes a backup protection display screen, a backup protection connection navigation socket, a primary switch opening operation button and a primary switch closing operation button; the backup protection connection navigation socket collects the electrical quantity signals of the actual distribution network operation, and the backup protection connection navigation socket is provided with a primary switch, and the opening and closing operations are performed through the primary switch opening operation button and the primary switch closing operation button; the backup protection display screen is connected to the backup protection connection navigation socket to display the electrical quantity signals collected by the backup protection connection navigation socket.

[0012] In the above solution, various types of FTU test-specific aviation plug interfaces include electromagnetic FTU test-specific aviation plug interfaces, electronic FTU test-specific aviation plug interfaces, and digital FTU test-specific aviation plug interfaces.

[0013] In the above scheme, the interface output component also includes an analog switch open position indicator light and an analog switch closed position indicator light, which are respectively connected to the analog switch open output operation button and the analog switch closed output operation button to indicate the open and closed status of the analog switch and the dedicated aviation plug interface for the non-energy storage switch position.

[0014] In the above scheme, the backup protection component also includes a primary switch open position indicator light and a primary switch closed position indicator light, which are respectively connected to the primary switch opening operation button and the primary switch closing operation button to indicate the open and closed status of the backup protection connection socket.

[0015] In the above scheme, the device body is also provided with a display control component; the display control component includes an industrial computer touch screen, digital keys and a mouse; the digital keys and the mouse control the electrical quantity signals output by various types of FTU test-specific aviation plug interfaces and the analog switches and the analog switches and switch quantity signals output by the aviation plug interfaces for non-energy storage switches, and the industrial computer touch screen displays the electrical quantity signals output by various types of FTU test-specific aviation plug interfaces and the analog switches and the analog switches and switch quantity signals output by the aviation plug interfaces for non-energy storage switches.

[0016] In the above solution, the device body is also provided with a battery power supply component for power supply.

[0017] In the above scheme, the battery-powered component includes a charging circuit, a power supply circuit, a power supply battery and a switching circuit; wherein the charging circuit is connected to the mains and the power supply battery, and uses the mains to charge the power supply battery; the power supply circuit is connected to the mains and converts the mains into the required direct current; the other end of the power supply circuit and the power supply battery are connected to the switching circuit, and the switching circuit selects the power supply circuit or the power supply battery for power supply.

[0018] In the above scheme, the battery-powered component also includes a DC boost module, a current amplifier module, a DC buck module and an auxiliary DC power supply module; among them, the DC boost module converts the DC power selected by the switching circuit into the DC power required by the DC boost module, the current amplifier module converts the DC power selected by the switching circuit into the DC power required by the current amplifier module, the DC buck module converts the DC power selected by the switching circuit into the DC power required by the interface output component and the backup protection component, and the auxiliary DC power supply module converts the DC power selected by the switching circuit into the DC power required by the distribution network field feeder automation terminal or other equipment.

[0019] In the above solution, the device further includes a handle, which is arranged on the device body.

[0020] In a second aspect, the present invention further provides a feeder automation terminal, which includes the feeder automation terminal on-site online detection device based on multi-function fusion as described in any one of the above technical solutions.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] The utility model provides an on-site online detection device for feeder automation terminals based on multi-function fusion, which sets various types of FTU test-specific aviation plug interfaces through interface output components, so that the device can be applied to different types of feeder automation terminals, and the test interface can be plug-and-play, which solves the problem faced by the on-site operation and maintenance feeder automation system during the three-year regular inspection that the outdoor test of the feeder automation terminal carries many devices and the test interface cannot be plug-and-play; in addition, the analog switch of the interface output component of the device and the dedicated aviation plug interface for the non-energy storage switch position are provided with a primary analog switch, and the backup protection connection aviation plug of the backup protection component is also provided with a primary switch. The primary analog switch and the primary switch are opened and closed by pressing a button, so that the connection with the primary switch quantity can be disconnected as needed during the online detection of the feeder automation terminal, which solves the problem faced by the on-site operation and maintenance feeder automation system during the three-year regular inspection that the primary switch of the feeder automation terminal operates without backup protection for a short time; in summary, the device improves the efficiency of on-site online operation and maintenance of the feeder automation terminal through the interface output component and the backup protection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a feeder automation terminal on-site online detection device based on multi-function fusion according to the present invention;

[0024] Figure 2 This is a power supply principle diagram of the feeder automation terminal on-site online detection device based on multi-function fusion of the present utility model;

[0025] Figure 3 This is a circuit schematic diagram of the feeder automation terminal on-site online detection device based on multi-functional integration of the present utility model;

[0026] Figure 4 This is a schematic diagram of the battery management circuit of the feeder automation terminal on-site online detection device based on multi-functional integration of the present utility model.

[0027] In the figure: 1-handle, 2-device body, 11-digital keys, 12-mouse, 13-industrial computer touch screen, 21-special aviation plug interface for electromagnetic FTU test, 22-special aviation plug interface for electronic FTU test, 23-special aviation plug interface for digital FTU test, 24-special aviation plug interface for analog switch and non-energy storage switch position, 25-analog switch closing position indicator light, 26-analog switch opening position indicator light, 27-analog switch closing output operation button, 28-analog switch opening output operation button, 31-standby protection display screen, 32-standby protection connection aviation socket, 33-primary switch closing position indicator light, 34-primary switch opening position indicator light, 35-primary switch closing operation button, 36-primary switch opening operation button, 41-lithium battery, 42-charging interface, 43-auxiliary DC power output interface. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0029] In order to further consolidate the construction results of distribution automation, improve the practical level of distribution automation, better support the operation monitoring, operation and maintenance, and fault handling of the distribution network, and improve the lean operation and maintenance and digital management and control capabilities of the distribution network, this utility model proposes a feeder automation terminal on-site online detection device based on multi-functional integration to solve various problems faced during the operation and maintenance of on-site feeder automation terminals.

[0030] The utility model discloses a feeder automation terminal on-site online detection device based on multifunctional fusion, which adopts a portable modular structure design, including a display control module, an interface output module, a backup protection module and a battery power supply module.

[0031] The display control module is mainly composed of an industrial computer display screen, a mouse, a keyboard, etc. It is mainly used to control the overall output of the on-site online detection device of the feeder automation terminal. The control of signals such as voltage, current, un-energy-stored switch quantity and primary switch position simulation related to the distribution automation terminal test is completed by this part.

[0032] The interface output module is used to realize the output of electrical quantity signals and the control of analog switches. The overall control and display are carried out through the display control module. Different types of signal sampling based on the feeder automatic terminal use different aviation plug interfaces, including electromagnetic sampling type feeder automation device dedicated aviation plug interface, electronic sampling type feeder automation device dedicated aviation plug interface, and digital sampling type feeder automation device dedicated aviation plug interface. At the same time, the interface output module has a built-in primary analog switch, and the opening and closing operations are performed through the control button of the primary switch, and the opening and closing status are displayed through the indicator light.

[0033] The backup protection module includes a backup protection function control module and a primary switch control module. The backup protection module is connected to the aviation plug interface to collect the electrical quantity signals of the actual distribution network operation. When a fault occurs, on the one hand, the fault can be identified through the electrical quantity characteristics of the backup protection function control module, and a tripping control command can be output to activate the actual primary switch to protect the distribution network and equipment as a whole. On the other hand, the control command issued by the master station can be manually issued to the actual primary switch through the primary switch control module according to the on-site power operation conditions to protect the distribution network and equipment as a whole. At the same time, when the fault is removed, the actual primary switch can be closed to restore power supply according to the reclosing protection function of the backup protection, or the primary switch closing operation button can be used to manually close and restore power supply.

[0034] The battery power module primarily consists of a power supply battery, a charging circuit, and an auxiliary DC output module. The battery power module primarily houses a 48V lithium battery, providing drive power for the entire device when powered by 220V AC mains. The charging circuit converts 220V AC mains power into a 48V DC power source through AC / DC conversion, directly powering the entire device and charging the lithium battery. The auxiliary DC output module includes 24V and 48V DC output capabilities, enabling it to provide emergency power to distribution network feeder automation terminals or other equipment.

[0035] Specifically, the design utilizes a power supply structure based on intelligent switching between 220V AC mains and lithium-ion batteries. The 220V AC mains provides charging power to the lithium-ion battery via an AC / DC charger. Once fully charged, the lithium-ion battery provides a stable 48V DC output. Furthermore, the AC / DC converter circuit provides 48V DC power. The 48V DC power provided by the lithium-ion battery and the mains direct supply circuit is then used to power other functional modules via a switching circuit. The switching circuit prioritizes the mains for direct power supply based on power level signals. For the power supply of the voltage amplifier module, the 48V DC voltage is converted into 410V DC voltage through the DC boost module to provide it with a driving power supply; for the power supply of the current amplifier module, the 48V DC voltage is converted into 6V DC voltage through the DC step-down module to provide it with a driving power supply; for the backup protection power supply, control system power supply and analog switch power supply, the 48V DC voltage is converted into 12V DC voltage through the DC step-down module to provide it with a driving power supply; for the auxiliary DC power supply module, one path converts the 48V DC voltage into 24V DC voltage through the DC step-down module to provide it with a driving power supply, and the other path directly uses the 48V DC voltage as its driving power supply.

[0036] It should be noted that providing specific electrical quantities, detecting electrical quantities, displaying electrical quantities, controlling the opening and closing of switches through buttons and indicating the opening and closing status, converting voltage for power supply, etc. are all common technical means and will not be elaborated here.

[0037] like Figure 1 and Figure 2 As shown, the feeder automation terminal on-site online detection device based on multifunctional fusion of the embodiment of the present invention includes a device body 2 and a handle on the device body 2. The device body 2 is provided with: a display control component, an interface output component, a backup protection component and a battery power supply component.

[0038] The display control component includes numeric keys 11, a mouse 12, and an industrial computer touch screen 13. These components are used to control the electrical outputs of various FTU test-specific aviation plug-in interfaces. Electrical output signals include voltage, current, and switching signals. These signals are provided to the distribution automation terminal for testing.

[0039] The interface output component includes an electromagnetic FTU test-specific aviation plug interface 21, an electronic FTU test-specific aviation plug interface 22, and a digital FTU test-specific aviation plug interface 23, which are used to output specific electrical quantity signals under the control of the display control component. The interface output component also includes an analog switch and an un-energy-storage switch position-specific aviation plug interface 24, which is used to connect to the distribution automation terminal, which is connected to a primary analog switch. The interface output component also includes an analog switch closing indicator light 25, an analog switch opening indicator light 26, an analog switch closing output operation button 27, and an analog switch opening output operation button 28. The analog switch opening output operation button 28 and the analog switch closing output operation button 27 are used to control the opening and closing of a primary analog switch, and the corresponding analog switch closing indicator light 25 and the analog switch opening indicator light 26 are used to indicate the opening and closing status.

[0040] The backup protection assembly includes a backup protection display 31, a backup protection connection navigation socket 32, a primary switch closed position indicator 33, a primary switch open position indicator 34, a primary switch open operation button 36, and a primary switch close operation button 35. The backup protection connection navigation socket 32 ​​collects electrical quantity signals from actual distribution network operation, which are displayed on the backup protection display 31. Similarly, the backup protection connection navigation socket 32 ​​is connected to a primary switch, which is controlled by the primary switch open operation button 36 and the primary switch close operation button 35, and its status is displayed by the primary switch closed position indicator 33 and the primary switch open position indicator 34.

[0041] The battery-powered assembly includes a lithium battery 41, a charging port 42, and an auxiliary DC power output port 43. The charging port 42 connects to the mains electricity, converting it into the DC power required by the lithium battery for charging. The battery-powered assembly can also directly provide the device with DC power through an AC / DC converter circuit. An internal switching circuit selects whether to use the lithium battery or the AC / DC converter circuit directly for power. Figure 4This is a schematic diagram of the battery management circuit for the multifunctional integrated feeder automation terminal on-site online detection device. This diagram primarily shows the circuitry from the mains power supply to the switching circuit. The switching circuit is then connected to various conversion circuits to provide the required driving power to other functional modules. Figure 3 This is the circuit schematic diagram of the feeder automation terminal on-site online detection device based on multi-functional integration of the utility model. Figure 2 The working circuit diagram of the power amplifier part includes Figure 4 The middle part of the power supply circuit mainly includes the battery, AC power switching and power amplifier circuit diagram.

[0042] In summary, this utility model provides a multifunctional integrated on-site online testing device for feeder automation terminals. This device addresses the issues faced by on-site feeder automation systems during their three-year scheduled inspections, such as the need to carry multiple devices for outdoor testing of feeder automation terminals, the inability to plug and play test interfaces, and the temporary lack of backup protection for primary switches. This device improves the efficiency of on-site online operation and maintenance of feeder automation terminals. This device further consolidates the effectiveness of distribution automation construction, enhances the practical application of distribution automation, effectively supports distribution network operation monitoring, maintenance and repair, and fault handling, and enhances the lean operation and maintenance and digital management and control capabilities of distribution networks.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeder automation terminal on-site online detection device based on multi-functional integration, characterized in that: The device comprises a device body, which is provided with an interface output component and a backup protection component; The interface output components include various types of dedicated aviation plug interfaces for FTU testing, dedicated aviation plug interfaces for analog switches and non-energy-storage switch positions, analog switch opening output operation buttons, and analog switch closing output operation buttons; various types of dedicated aviation plug interfaces for FTU testing output electrical quantity signals; dedicated aviation plug interfaces for analog switches and non-energy-storage switch positions output analog switches and switch quantity signals; the dedicated aviation plug interfaces for analog switches and non-energy-storage switch positions are equipped with a primary analog switch, and opening and closing operations are performed through the analog switch opening output operation buttons and the analog switch closing output operation buttons; The backup protection component includes a backup protection display screen, a backup protection connection navigation socket, a primary switch opening operation button and a primary switch closing operation button; the backup protection connection navigation socket collects the electrical quantity signals of the actual distribution network operation, and the backup protection connection navigation socket is provided with a primary switch, and the opening and closing operations are performed through the primary switch opening operation button and the primary switch closing operation button; the backup protection display screen is connected to the backup protection connection navigation socket to display the electrical quantity signals collected by the backup protection connection navigation socket.

2. The feeder automation terminal on-site online detection device based on multifunctional integration according to claim 1 is characterized in that: Various types of FTU test-specific aviation plug interfaces include electromagnetic FTU test-specific aviation plug interfaces, electronic FTU test-specific aviation plug interfaces, and digital FTU test-specific aviation plug interfaces.

3. The feeder automation terminal on-site online detection device based on multifunctional integration according to claim 1 is characterized in that: The interface output component also includes an analog switch open position indicator light and an analog switch closed position indicator light, which are respectively connected to the analog switch open output operation button and the analog switch closed output operation button to indicate the open and closed status of the analog switch and the dedicated aviation plug interface for the non-energy storage switch position.

4. The feeder automation terminal on-site online detection device based on multifunctional integration according to claim 1 is characterized in that: The backup protection component also includes a primary switch open position indicator light and a primary switch closed position indicator light, which are respectively connected to the primary switch opening operation button and the primary switch closing operation button to indicate the open and closed status of the backup protection connection socket.

5. The feeder automation terminal on-site online detection device based on multifunctional integration according to claim 1 is characterized in that: The device body is also provided with a display control component; The display control component includes an industrial computer touch screen, digital keys and a mouse; the digital keys and the mouse control the electrical quantity signals output by various types of FTU test-specific aviation plug interfaces and the analog switches and the analog switches and switch quantity signals output by the aviation plug interfaces for un-energy-stored switch positions; the industrial computer touch screen displays the electrical quantity signals output by various types of FTU test-specific aviation plug interfaces and the analog switches and the analog switches and switch quantity signals output by the aviation plug interfaces for un-energy-stored switch positions.

6. The feeder automation terminal on-site online detection device based on multifunctional integration according to claim 1 is characterized in that: The device body is also provided with a battery power supply component for power supply.

7. The feeder automation terminal on-site online detection device based on multifunctional integration according to claim 6 is characterized in that: The battery-powered component includes a charging circuit, a power supply circuit, a power supply battery, and a switching circuit; Among them, the charging circuit is connected to the mains and the power supply battery, and uses the mains to charge the power supply battery; the power supply circuit is connected to the mains and converts the mains into the required direct current; the other end of the power supply circuit and the power supply battery are connected to the switching circuit, and the switching circuit selects the power supply circuit or the power supply battery for power supply.

8. The feeder automation terminal on-site online detection device based on multi-function integration according to claim 7 is characterized in that: The battery-powered components also include a DC boost module, a current amplifier module, a DC buck module, and an auxiliary DC power supply module; Among them, the DC boost module converts the DC power selected by the switching circuit into the DC power required by the DC boost module, the current amplifier module converts the DC power selected by the switching circuit into the DC power required by the current amplifier module, the DC step-down module converts the DC power selected by the switching circuit into the DC power required by the interface output component and the backup protection component, and the auxiliary DC power supply module converts the DC power selected by the switching circuit into the DC power required by the distribution network field feeder automation terminal or other equipment.

9. The feeder automation terminal on-site online detection device based on multifunctional integration according to claim 1 is characterized in that: The device also includes a handle, which is arranged on the device body.

10. A feeder automation terminal, characterized in that: The feeder automation terminal includes the feeder automation terminal on-site online detection device based on multi-function fusion as described in any one of claims 1 to 9.

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