Intelligent power distribution one-key sequential control system

Abstract

The utility model provides an intelligent power distribution one-key sequential control system. The intelligent power distribution one-key sequential control system comprises power distribution equipment; the upper host is in communication connection with the plurality of power distribution devices through RS-485 buses so as to obtain the states of the power distribution devices and send control instructions to the power distribution devices; the centralized control platform is in communication connection with the upper host through an RS-485 bus, and the centralized control platform is at least used for man-machine interaction; wherein the centralized control platform is provided with a one-key control key, and the one-key control key is used for generating a power transmission trigger signal or a maintenance trigger signal; and the upper host receives the power transmission trigger signal or the maintenance trigger signal and generates a control instruction according to the state of the power distribution equipment. According to the utility model, an RS-485 bus networking mode is adopted, all power distribution equipment in a power distribution room is networked, and the purpose of background remote control unified scheduling or on-site local centralized control can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of power distribution system technology, and more specifically, to an intelligent power distribution one-button sequential control system. Background Technology

[0002] The daily use of power distribution equipment requires frequent switching between the "working position" and "test position" to achieve the energized state in the working position and the maintenance-ready state in the test position. In the actual operation of switching between the "working position" and "test position," operators need to operate the circuit breakers, circuit breaker trolleys, and grounding switches in the power distribution equipment according to a specific operational sequence. Taking the operation procedure of switching the power distribution equipment from the energized working position to the test position for maintenance as an example, the operator needs to first perform the circuit breaker tripping operation, then manually use the operating handle to move the circuit breaker trolley from the working position to the test position, and finally perform the grounding switch closing operation.

[0003] Misoperation of the circuit breaker, circuit breaker trolley, and grounding switch sequence can lead to serious safety accidents. Therefore, power distribution equipment itself has five-proof mechanical interlocks to ensure that the operation of the devices meets specific conditions and states. However, in reality, the five-proof interlocks may have hidden dangers such as improper adjustment or defects. If misoperation occurs, it may endanger the personal safety of the operator or cause major damage to the power distribution equipment.

[0004] Current solutions employ programmable logic controllers (PLCs) or microcontrollers to collect status signals from devices such as circuit breakers, circuit breaker trolleys, and grounding switches. The PLC program then restricts operations based on conditions that do not meet these restrictions. However, this approach typically only works for individual power distribution units, making it unsuitable for centralized control of all equipment within a power distribution room. Furthermore, this solution suffers from complex hardware structures, hindering upgrades and renovations of existing power distribution rooms. Utility Model Content

[0005] The present invention aims to at least solve one of the technical problems in the existing intelligent power distribution one-click sequential control system, which makes it difficult to achieve integrated control of multiple power distribution devices and is not convenient for upgrading and transforming existing power distribution rooms.

[0006] Therefore, the first aspect of this utility model provides an intelligent power distribution one-button sequential control system.

[0007] This utility model provides an intelligent power distribution one-button sequential control system, including:

[0008] Power distribution equipment;

[0009] The host computer communicates with several power distribution devices via RS-485 bus to obtain the status of the power distribution devices and send control commands to the power distribution devices.

[0010] The centralized control platform is in communication connection with the upper host computer through an RS-485 bus, and the centralized control platform is at least used for human-computer interaction; wherein, the centralized control platform is provided with a one-key control button, and the one-key control button is used for generating a power supply triggering signal or a maintenance triggering signal;

[0011] The upper host computer receives the power supply triggering signal or the maintenance triggering signal, and generates a control instruction according to the state of the power distribution equipment.

[0012] According to the intelligent power distribution one-key sequence control system in the above technical scheme, the following additional technical features can also be provided:

[0013] In the above technical scheme, the power distribution equipment comprises:

[0014] The bottom equipment comprises a chassis vehicle and / or a ground cutter;

[0015] The device controller is in control connection with the bottom equipment and is used for driving control of the chassis vehicle and / or the ground cutter;

[0016] The logic controller is in communication connection with the upper host computer to receive the control instruction and is connected with the device controller to forward the control instruction; wherein, the logic controller is also used for collecting the working state of the power distribution equipment and uploading to the upper host computer.

[0017] In the above technical scheme, the control instruction comprises a chassis vehicle in-out instruction and / or a ground cutter closing-opening instruction.

[0018] In the above technical scheme, the power distribution equipment further comprises a circuit breaker, and the control instruction further comprises a circuit breaker closing-opening instruction;

[0019] The logic controller is in control connection with the circuit breaker, and the circuit breaker performs closing-opening operation according to the circuit breaker closing-opening instruction.

[0020] In the above technical scheme, the upper host computer generates the control instruction according to the type of the triggering signal in sequence;

[0021] When the triggering signal is a power supply triggering signal, the ground cutter opening instruction, the chassis vehicle in instruction and the circuit breaker closing instruction are generated in sequence;

[0022] When the triggering signal is a maintenance triggering signal, the circuit breaker opening instruction, the chassis vehicle out instruction and the ground cutter closing instruction are generated in sequence.

[0023] In the above technical scheme, the logic controller is provided with a chassis vehicle fault collection contact, a ground cutter fault collection contact, a circuit breaker closing state collection contact and a circuit breaker opening state collection contact;

[0024] The chassis vehicle fault collection contact receives a chassis vehicle fault signal;

[0025] The ground knife fault acquisition contact receives a ground knife fault signal.

[0026] The circuit breaker closing state acquisition contact receives a circuit breaker closing state signal.

[0027] The circuit breaker opening state acquisition contact receives a circuit breaker opening state signal.

[0028] In the above technical solution, the device controller comprises a register;

[0029] The device controller receives the opening and closing signals of the circuit breaker, the test position signal and the working position signal of the chassis vehicle, the opening and closing signals of the ground knife and the interlocking signal of the five-prevention, and stores them in the register;

[0030] The logic controller periodically reads the register data of the device controller.

[0031] In the above technical solution, the device controller is connected with the logic controller through a twisted pair wire with a shielding layer.

[0032] In the above technical solution, the underlying device is provided with a position reaching travel switch, which is used to detect the position reaching condition of the underlying device and transmit a detection signal to the device controller for starting and stopping judgment when the device controller drives and controls the underlying device.

[0033] In the above technical solution, the centralized control platform is provided with a display device, which is used to display the running state of the power distribution equipment in real time.

[0034] As described above, due to the adoption of the above technical features, the beneficial effects of the utility model are:

[0035] Based on the application sequence control system adopts RS-485 bus networking mode, all power distribution equipment in the power distribution room is networked, and the purpose of remote control unified scheduling or through the local control on site can be reached, and the centralized control of multiple power distribution equipment is easy to realize; on the basis of reserving the original five-prevention mechanical interlocking, the upper host computer is used as the control unit, and the industrial standard MODBUS 485 communication protocol bus is used to read and send control instructions to each control object (power distribution equipment). Remote or on-site control of power distribution equipment in the power distribution room is achieved. Further, in the application, only by installing a logic control unit and a device controller on the power distribution equipment, the action control of the circuit breaker, the hand knife and the ground knife can be realized, on the basis of the above controller assembly scheme, combined with the known operation sequence, the automatic one-key power supply operation and the one-key maintenance operation can be realized, and thanks to the modular design of the logic controller and the device controller in the application, the design solves the problem of modification of the already put into operation power distribution equipment, so that the scheme is not only suitable for the realization of new projects, but also compatible with the upgrading and modification of the already put into operation projects, and provides a basis for the intelligentization of power distribution equipment. At the same time, if the equipment or device fails, the related faulty device can be easily replaced through the plug-in terminal block, the maintenance difficulty of the equipment is reduced, so that the influence of the fault on the user is reduced.

[0036] The additional aspects and advantages of the present application will become apparent in the description below, or can be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0037] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0038] Figure 1 is a structural schematic diagram of an intelligent power distribution one-key sequence control system according to an embodiment of the present application;

[0039] Figure 2 is a power distribution equipment control schematic diagram in an intelligent power distribution one-key sequence control system according to an embodiment of the present application;

[0040] Figure 3 is a connection schematic diagram of a logic controller and a device controller in an intelligent power distribution one-key sequence control system according to an embodiment of the present application;

[0041] Figure 4 is a device controller wiring schematic diagram in an intelligent power distribution one-key sequence control system according to an embodiment of the present application;

[0042] Figure 5 is a logic controller wiring schematic diagram in an intelligent power distribution one-key sequence control system according to an embodiment of the present application. DETAILED DESCRIPTION

[0043] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood, further specific details thereof will be described in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0044] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other ways different from those described herein, and therefore, the scope of the present application is not limited by the specific embodiments disclosed below.

[0045] Some embodiments of the present application provide an intelligent power distribution one-key sequence control system. Figures 1 to 5 Some embodiments of the present application provide an intelligent power distribution one-key sequence control system.

[0046] Some embodiments of the present application provide an intelligent power distribution one-key sequence control system.

[0047] As shown in Figure 1 The first embodiment of the present application provides an intelligent power distribution one-key sequence control system, which comprises a power distribution device, an upper host and a centralized control platform.

[0048] The power distribution device is the control object. The upper host is in communication connection with a plurality of power distribution devices through an RS-485 bus to obtain the state of the power distribution device and send control instructions to the power distribution device; in Figure 1 In the embodiment shown, the upper host is connected to the power distribution devices 1-N through an RS-485 bus. It can be understood that the number of power distribution devices can be flexibly adjusted according to the site conditions. The centralized control platform is in communication connection with the upper host through an RS-485 bus, and the centralized control platform is at least used for human-computer interaction; wherein the centralized control platform is provided with a one-key control button, and the one-key control button is used to generate a power-on trigger signal or a maintenance trigger signal. Specifically, the one-key control button can include a one-key power-on button and a one-key maintenance button, and the one-key control button can be a button with a physical entity or a trigger button integrated in software. The upper host receives the power-on trigger signal or the maintenance trigger signal and generates control instructions according to the state of the power distribution device.

[0049] It should be noted that the present disclosure refers to generating control instructions according to the state of the power distribution device, which should be understood as referring to establishing the connection relationship between the power distribution device state detection device and the upper host, i.e. obtaining the state signal, collecting the signal, etc. The specific control instructions generated according to the state can be directly obtained from the existing mode, for example, whether the power-on execution condition or the maintenance execution condition is met can be judged according to the switch state and the fault state of each element in the power distribution device, and the above control logic can be obtained from the traditional single machine which completes one-key power-on or one-key maintenance.

[0050] Specifically, the data interaction among the upper host, the centralized control platform and the power distribution equipment in the present disclosure adopts the MODBUS RTU communication protocol which is widely used in automation.

[0051] In some embodiments, the power distribution equipment comprises a bottom equipment, a device controller and a logic controller.

[0052] It should be noted that the peripheral devices in the power distribution equipment mainly include circuit breakers, panel cars (hand carts) and ground knives; and the bottom equipment mainly includes panel cars and ground knives and other devices without automatic control function, so for the bottom equipment, another drive controller, i.e. the device controller in the present disclosure, is needed. The device controller is in control connection with the bottom equipment and is mainly used for the drive control of the panel car and the ground knife to complete the rocking in and rocking out of the panel car and the opening and closing control action of the ground knife. The logic controller is in communication connection with the upper host to receive control instructions and is connected with the device controller to forward the control instructions; wherein the logic controller is also used to collect the working state of the power distribution equipment and upload it to the upper host. Specifically, as shown in Figure 2 The logic controller collects the working state of each component of the power distribution equipment, regularly sends the working state signal to the upper host, and receives the control instruction issued by the upper host. When the logic controller of the power distribution equipment receives the control instruction from the upper host, the logic controller analyzes the execution condition, forwards the control instruction to the device controller under the condition of meeting the execution condition, and sends the execution result data to the upper host after completing the control content.

[0053] It can be understood that in order to realize the centralized control of the power distribution equipment, the control of the circuit breaker, the panel car and the ground knife is all included in the control object of the intelligent power distribution one-key sequence control system, and in some cases, only one or two of them can be selected for control in the peripheral equipment.

[0054] In the above embodiment, the control instruction includes the panel car rocking in and rocking out instruction, the ground knife opening and closing instruction and the circuit breaker opening and closing instruction. The logic controller is in control connection with the circuit breaker, and the circuit breaker performs the opening and closing operation according to the circuit breaker opening and closing instruction; that is, the logic controller directly forwards the circuit breaker opening and closing instruction to the circuit breaker closing relay or the circuit breaker opening relay.

[0055] In some embodiments, the device controller comprises a register; the device controller receives the opening and closing signals of the circuit breaker, the test bit signal and the working bit signal of the panel car, the opening and closing signals of the ground knife and the interlocking signals of the five-prevention, and stores them in the register; the logic controller periodically reads the register data of the device controller to obtain the real-time state of the panel car and the ground knife. Specifically, the device controller has RS-485 communication function, as shown in Figure 3As shown, the device controller is connected to the COM1 port of the logic controller by a shielded twisted pair.

[0056] In some embodiments, the underlying device is provided with a home position switch for detecting the home position of the underlying device and transmitting a detection signal to the device controller for start-stop judgment when the device controller drives the underlying device.

[0057] As shown in Figure 4 and Figure 5 When the control instruction is a chassis car in-out instruction, the logic controller turns on the output point Y4 (in) or Y5 (out). At this time, the contact 14 or contact 15 of the device controller will receive the control instruction from the logic controller, and the device controller will output voltage to the contact 3 and contact 4, and the motor connected to the contact 3 and contact 4 will work to drive the chassis car to move. When the chassis car moves in or out to the specified position, the chassis car will stop moving after triggering the home position switch, and at this time the control execution is completed.

[0058] When the control instruction is a ground knife closing or opening instruction, the logic controller turns on the output point Y6 (closing) or Y7 (opening). At this time, the contact B6 or contact B7 of the device controller will receive the control instruction from the logic controller, and the device controller will output voltage to the contact A1 and contact A2, and the motor connected to the contact A1 and contact A2 will work. The ground knife performs closing or opening action, and after the action is completed, the home position switch is triggered, and at this time the control execution is completed.

[0059] When the control instruction is a circuit breaker closing or opening instruction, the logic controller turns on the output point Y2 (closing) or Y3 (opening). At this time, the relay of the circuit breaker receives the control signal from the logic controller, and the circuit breaker performs closing or opening, and after the action is completed, the circuit breaker feeds back the state signal to the contact X3 or contact X4 of the logic controller.

[0060] On the basis of the intelligent power distribution one-key sequence control system structure proposed in the present disclosure, the required device actions can be automatically completed in a specific operation sequence through the above-mentioned control methods of the circuit breaker, chassis car and ground knife. Specifically, the upper host generates control instructions in sequence according to the type of trigger signal. When the trigger signal is a power transmission trigger signal, i.e. when the operator executes one-key power transmission, the ground knife opening instruction, the chassis car in instruction and the circuit breaker closing instruction are generated in sequence, and then the system automatically performs the ground knife opening, the chassis car in to the working position and the circuit breaker closing in sequence. When the trigger signal is a maintenance trigger signal, i.e. when the operator executes one-key maintenance, the circuit breaker opening instruction, the chassis car out instruction and the ground knife closing instruction are generated in sequence, and then the system automatically performs the circuit breaker opening, the chassis car out to the test position and the ground knife closing.

[0061] In some embodiments, with reference continuing to Figure 5 The logic controller is provided with chassis trolley fault acquisition contact X1, ground knife fault acquisition contact X2, circuit breaker closing state acquisition contact X3 and circuit breaker opening state acquisition contact X4; the chassis trolley fault acquisition contact X1 receives a chassis trolley fault signal; the ground knife fault acquisition contact X2 receives a ground knife fault signal; the circuit breaker closing state acquisition contact X3 receives a circuit breaker closing state signal; and the circuit breaker opening state acquisition contact X4 receives a circuit breaker opening state signal.

[0062] In some embodiments, the centralized control platform is provided with a display device for real-time display of the operation state of the power distribution equipment. Specifically, the centralized control platform serves as an interactive platform for the operator and the system, and the operator can query the operation state of the power distribution equipment through the centralized control platform and control single or multiple power distribution equipment through the platform. In addition to the state monitoring performed by the display device, the control process and the control result can also be visually displayed.

[0063] This embodiment provides the core functions of "one-key power supply" and "one-key maintenance" of the intelligent power distribution one-key sequence control system through an automatic control mode. The operator only needs to press one key, and the system will determine the operation condition and complete all required actions according to a specific operation sequence. If a device fault occurs during the operation process, the system will display an alarm information or a prompt to the operator through the display device (human-machine interface HMI). In some embodiments, the system also provides separate operations of the circuit breaker opening and closing, the handcart in and out, and the ground knife opening and closing. During the separate operation, if the operation action does not meet the operation condition, the system will display the detailed content of the operation fault through the human-machine interface.

[0064] In this specification, the illustrative representations of the above-mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent power distribution one-key sequence control system, characterized in that, The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform.

2. The intelligent power distribution one-key sequence control system according to claim 1, characterized in that, The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. 3.The intelligent power distribution one-key sequence control system according to claim 1, characterized in that, The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform. The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform.

4. The intelligent power distribution one-key sequence control system according to claim 1, characterized in that, The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform.

5. The intelligent power distribution one-key sequence control system according to claim 1, characterized in that, The utility model relates to a power distribution equipment, an upper host computer and a centralized control platform.

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