Distributed batch restart system

Abstract

The utility model discloses a distributed batch restart system, which comprises a support piece, a plurality of restart devices, a plurality of restart devices and a plurality of restart devices, the motor restart controller comprises a restart controller and a power connection seat; the plurality of motor restart controllers are correspondingly and detachably connected with the plurality of mounting positions through the plurality of power connection seats respectively; the restarting controller is detachably connected with the power connection seat; the power connection seat comprises a wiring part, and the wiring part comprises an input end, a first output end and a second output end; the input end and the first output end are electrically connected with the information output end and the control end of the motor through wires respectively. And the second output end is connected with the DCS upper computer, the working state information is still continuously transmitted to the DCS upper computer during voltage sag, and the working state information is not transmitted to the DCS upper computer during normal shutdown or fault shutdown. And the distance between the mounting positions is adjustable.

Description

Technical Field

[0001] This application relates to the technical field of motor control devices, specifically a decentralized batch restart system. Background Art

[0002] In factory enterprises, when encountering a power failure such as a dual-power supply switchover or a power outage lasting more than 1 s, the release of contactors will cause unplanned production downtime, resulting in economic losses and safety hazards; for this reason, some important motors need to be restarted after a short power recovery. Factory enterprises usually have at least dozens of motors. In the prior art, these motors use a computer host as a control console for regulating restart, and a computer host is used to control the motors in the motor group to restart in batches to avoid impacting the power grid.

[0003] However, once the computer host itself fails, the motor group will also face the problem of being unable to regulate and stagger the batch restart, resulting in the entire production operation stagnating and causing economic losses; maintenance personnel need to individually and time-consumingly restore the motors to operation, as well as repair or replace the computer host and re-debug. Summary of the Utility Model

[0004] The present utility model mainly aims at the above problems and proposes a decentralized batch restart system, aiming to solve the technical problems in the background art.

[0005] To achieve the above object, the present utility model provides a decentralized batch restart system, including:

[0006] A support member, the support member is provided with a plurality of mounting positions;

[0007] A motor restart controller, the motor restart controller includes a restart controller and a power connection socket; a plurality of the motor restart controllers are respectively detachably connected to a plurality of the mounting positions through a plurality of the power connection sockets; the restart controller is detachably connected to the power connection socket; the power connection socket includes a wiring portion, and the wiring portion includes an input end, a first output end, and a second output end; the input end and the first output end are respectively electrically connected to the information output end and the control end of the motor through wires;

[0008] A DCS upper computer, the second output end is connected to the DCS upper computer, and continuously transmits the working state information to the DCS upper computer during power fluctuations, and does not transmit the working state information to the DCS upper computer during normal shutdown or fault shutdown.

[0009] Furthermore, the distance between the mounting positions is adjustable.

[0010] Further, it includes an interactive display connected to the support member; the wiring part includes a third output terminal, and the third output terminal is electrically connected to the interactive display.

[0011] Further, the support member is a frame.

[0012] Further, the support member is a cabinet, the cabinet is provided with an openable and closable cabinet door, and the cabinet door is provided with a display area corresponding to the motor restart controller.

[0013] Further, the motor restart controller is connected to the DCS host computer through a 485 communication interface.

[0014] Further, at least two of the motor restart controllers are electrically connected to one interactive display.

[0015] Further, the support member is provided with a plurality of sliding support rails, the installation position includes a plurality of sets of sliding seats slidably connected to the sliding support rails, and fixing members for keeping the sliding seats and the sliding support rails relatively fixed, and the power connection seat is detachably connected corresponding to the installation position.

[0016] Compared with the prior art, the decentralized batch restart system provided by the present utility model has the advantages that multiple motor restart controllers do not affect each other and work independently, and batch restart the motors corresponding to them according to the pre-allocated time sequence. And the support member is used to concentrate multiple motor restart controllers together, avoiding maintenance personnel from going to different motors at the workshop site for individual troubleshooting and maintenance, reducing the labor intensity of maintenance personnel and improving the maintenance convenience. And by using the detachable connection between the restart controller and the power connection seat, and the detachable connection between the power connection seat and the installation position, the restart controller or the power connection seat can be independently replaced, reducing the cost. Avoid using a single computer host as the control console for regulating restart. If the computer host fails, the entire motor group will stop working and it will be difficult to restart. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the decentralized batch restart system of the present application.

[0018] Figure 2 It is a connection block diagram of each component of the decentralized batch restart system of the present application.

[0019] Figure 3 It is a schematic structural diagram of the motor restart controller of the decentralized batch restart system of the present application.

[0020] Figure 4 It is a schematic structural diagram of the connection between the support member and the motor restart controller after opening the cabinet door of the decentralized batch restart system of the present application.

[0021] Reference numerals shown in the figure: 1, support member; 110, cabinet door; 120, display area; 130, installation position; 2, motor restart controller; 210, restart controller; 220, power connection socket; 221, input terminal; 222, first output terminal; 223, second output terminal; 224, third output terminal; 3, DCS host computer; 4, interactive display. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. It can be understood that the accompanying drawings are only for reference and illustration purposes, and are not used to limit the present invention. The connection relationships shown in the drawings are only for clear description and do not limit the connection methods.

[0023] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. It should also be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0024] It should also be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] Please refer to Figure 1 - Figure 4, this embodiment provides a distributed batch restart system, including:

[0026] A support member 1, the support member 1 is provided with a plurality of mounting positions 130;

[0027] A motor restart controller 2, the motor restart controller 2 includes a restart controller 210 and a power connection socket 220; a plurality of the motor restart controllers 2 are respectively detachably connected to the plurality of mounting positions through the plurality of power connection sockets 220; the restart controller 210 is detachably connected to the power connection socket 220; the power connection socket 220 includes a wiring part, and the wiring part includes an input end 221, a first output end 222, and a second output end 223; the input end 221 and the first output end 222 are respectively electrically connected to the information output end and the control end of the motor through wires;

[0028] A DCS host computer 3, the second output end 223 is connected to the DCS host computer 3, and continuously transmits the working state information to the DCS host computer 3 during power fluctuations, and does not transmit the working state information to the DCS host computer 3 during normal shutdown or fault shutdown.

[0029] Through the support member 1 and the DCS host computer 3, a plurality of motor restart controllers 2 and the motors connected thereto are connected in a decentralized control and centralized acquisition manner. Each motor circuit is controlled by an independent restart controller 210, and the restart controller 210 corresponds to the motor circuit one by one. All voltage acquisition, detection, and logical judgment are independently completed by the restart controller 210. All contactor operation state signals are in a hard-wired manner and are centrally sent to the power connection socket 220 of the batch restart controller 210, and are connected to the contactor state input point of each restart controller 210 through the input end 221 of the power connection socket 220. The input end 221 includes the function of inputting by conducting the motor power supply to the restart controller 210; at the same time, the operation state signal of the contactor can also be transmitted to the background DCS host computer 3 through the second output end 223 for monitoring.

[0030] When the motor restart controller 2 detects that the operating contact of the contactor is released due to an instantaneous voltage sag at the power supply side, within the preset allowable voltage loss time limit, when the voltage reaches the preset 85% threshold, a batch restart command is output through the first output end 222 and the second output end 223, and is directly output to the start circuit of each motor.

[0031] Multiple motor restart controllers 2 do not affect each other and work independently. They restart their corresponding motors in batches according to the pre - configured time sequence. Moreover, the support member 1 is used to gather multiple motor restart controllers 2 together, avoiding the need for maintenance personnel to check and maintain each motor at different locations in the workshop one by one, reducing the labor intensity of the maintenance personnel and improving the convenience of maintenance. Additionally, since the restart controller 210 is detachably connected to the power connection seat 220, and the power connection seat 220 is detachably connected to the installation position correspondingly, the restart controller 210 or the power connection seat 220 can be replaced independently, reducing the cost. This avoids using a single computer host as the control console for regulating restart. If the computer host fails, the entire motor group will stop working and it will be difficult to restart.

[0032] The DCS upper computer 3, which can also be called a distributed control system, is connected to multiple motor restart controllers 2, enabling it to view the information of multiple motor restart controllers 2 at a glance, providing a good user experience.

[0033] Preferably, the distance between the installation positions is adjustable.

[0034] With this setting, the distance between the independent motor restart controller 2 and the adjacent motor restart controller 2 can be adjusted. On the premise that the size of the support member 1 has been determined, by adjusting the appropriate distance, it is convenient for customers to layout the required number of motor restart controllers 2.

[0035] Please refer to Figure 1 and Figure 2 、 Figure 4 , including an interactive display 4 connected to the support member 1; the wiring part includes a third output terminal 224, and the third output terminal 224 is electrically connected to the interactive display 4.

[0036] In some embodiments, the interactive display 4 can be an LED display with a touch screen or an LED display with physical control buttons.

[0037] Through the interactive display 4, it is convenient to set parameters, check, and view the number of protection actions. It is extremely convenient to adjust the batch time and the allowable voltage loss range according to the actual situation on - site at any time.

[0038] In this decentralized batch restart system, the motor restart controller 2 can intelligently judge and distinguish different states of power - failure shutdown, normal shutdown, and fault - protection shutdown, and only outputs a batch restart command when the shutdown is caused by power - side power - failure flickering, without misoperation.

[0039] The instantaneous response to voltage can reach more than 0 seconds without blind spots, and intelligent control can be performed according to the duration of instantaneous voltage loss or instantaneous undervoltage, that is, for momentary power outages within 500 ms, all motors can be started without batch separation, and for instantaneous voltage loss lasting more than 500 ms, motors can be restarted in batches after the incoming voltage reaches the preset voltage threshold.

[0040] It can be configured differently according to the actual number of motors controlled on site, which is convenient and flexible.

[0041] The power connection socket 220 of the motor restart controller 2 is connected to the motor circuit by hard wiring to avoid electromagnetic interference problems. This connection method completely abandons the application of a large number of communication integrated circuits, not only solves the electromagnetic interference problems faced by integrated circuits, but also effectively improves the reliability and safety of signal transmission, bringing great convenience to subsequent maintenance.

[0042] In some embodiments, the support member 1 is a frame. It can be an open frame with better heat dissipation effect.

[0043] Please refer to Figure 1 and Figure 4 , the support member 1 is a cabinet, the cabinet is provided with an openable cabinet door 110, and the cabinet door 110 is provided with a display area 120 corresponding to the motor restart controller 2.

[0044] During maintenance, the cabinet door 110 can be opened. After maintenance, the cabinet door 110 is closed to prevent others from misoperating.

[0045] Preferably, the motor restart controller 2 is connected to the DCS host computer 3 through a 485 communication interface.

[0046] Preferably, at least two motor restart controllers 2 are electrically connected to an interactive display 4.

[0047] The interactive display 4 can be connected to multiple motor restart controllers 2. By switching, parameter settings, viewing, and checking the number of protection actions can be performed for one motor restart controller 2 at a time.

[0048] In some embodiments, the support member 1 is provided with a plurality of sliding support rails, the installation position includes a plurality of sliding seats slidably connected to the sliding support rails and fixing members for keeping the sliding seats and the sliding support rails relatively fixed, and the power connection socket 220 is detachably connected to the installation position correspondingly.

[0049] In some embodiments, the fixing member is a locking screw.

[0050] The sliding seat moves along the sliding support rail to adjust the position of the power connection seat 220. After the position is determined, tighten the locking screw to fix the sliding seat relative to the sliding support rail.

[0051] In some embodiments, the sliding support rail may also be provided with a plurality of positioning holes, and the fixing member is a positioning ball corresponding to the positioning holes.

[0052] In the description and claims of the present application, the words "comprising / including" and the words "having / including" and their variants are used to specify the presence of the stated features, values, steps or components, but do not exclude the presence or addition of one or more other features, values, steps, components or combinations thereof.

[0053] Some features of the present utility model are described separately in different embodiments for clarity. However, these features may also be described in combination in a single embodiment. On the contrary, some features of the present utility model are described only in a single embodiment for brevity. However, these features may also be described separately or in any suitable combination in different embodiments.

[0054] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A decentralized batch restart system, characterized in that: include: A support member, wherein the support member is provided with a plurality of mounting positions; A motor restart controller, the motor restart controller comprises a restart controller and an electrical connection socket; a plurality of the motor restart controllers are detachably connected to a plurality of the mounting positions through the plurality of electrical connection sockets; the restart controller is detachably connected to the electrical connection socket; the electrical connection socket comprises a wiring portion, the wiring portion comprises an input end, a first output end, and a second output end; the input end and the first output end are electrically connected to the information output end and the control end of the motor through wires respectively; The second output end is connected to the DCS host computer, and the working status information is continuously transmitted to the DCS host computer during power fluctuations, and the working status information is not transmitted to the DCS host computer during normal shutdown or fault shutdown.

2. The decentralized batch restart system according to claim 1, characterized in that: The distance between the installation positions is adjustable.

3. The decentralized batch restart system according to claim 1, characterized in that: It includes an interactive display connected to the support; the wiring portion includes a third output terminal, and the third output terminal is electrically connected to the interactive display.

4. The decentralized batch restart system according to claim 1, characterized in that: The supporting member is a frame.

5. The decentralized batch restart system according to claim 1, characterized in that: The supporting member is a cabinet, the cabinet is provided with an openable and closable cabinet door, and the cabinet door is provided with a display area corresponding to the motor restart controller.

6. The decentralized batch restart system according to claim 1, characterized in that: The motor restart controller is connected to the DCS host computer via a 485 communication interface.

7. The decentralized batch restart system according to claim 3, characterized in that: At least two of the motor restart controllers are electrically connected to one of the interactive displays.

8. The decentralized batch restart system according to claim 2, characterized in that: The support member is provided with a plurality of sliding support rails, the mounting position comprises a plurality of slide seats slidably connected to the sliding support rails, and a fixing member for keeping the slide seats relatively fixed to the sliding support rails, and the electrical connection seat is detachably connected to the mounting position.

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