CN108736766B - Control system suitable for starting and running of motor and implementation method thereof - Google Patents
Control system suitable for starting and running of motor and implementation method thereof Download PDFInfo
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- CN108736766B CN108736766B CN201810529627.4A CN201810529627A CN108736766B CN 108736766 B CN108736766 B CN 108736766B CN 201810529627 A CN201810529627 A CN 201810529627A CN 108736766 B CN108736766 B CN 108736766B
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 9
- 230000001012 protector Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
- H02P1/32—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by star-delta switching
Abstract
The invention relates to a control system suitable for starting and running a motor and an implementation method thereof, comprising a control panel, wherein a control scheduling device, a plurality of output control modules and a collecting device are arranged on the control panel, each output control module is an independent control module, the control end of the control scheduling device is connected with the controlled end of the output control module, the output end of the output control module is connected to a working device, the input end of the control scheduling device is connected with the output end of the collecting device, and the collecting end of the collecting device is connected with the working device. According to the invention, the output control module is modularized, so that the difficulty of installation is simplified, the complexity of operation is effectively simplified, and the working efficiency of the device is effectively improved.
Description
Technical Field
The present invention relates to a control system, and more particularly, to a control system for starting and operating a motor and a method for implementing the same.
Background
At present, for the control part of the refrigerating and defrosting device, the circuit for installing the control device is complex, each circuit needs to be manually wired, the device is burnt out due to a small careless circuit misconnection, the cost is increased, meanwhile, the control device also needs to be controlled by operators according to the part, the efficiency is low, the installation speed is not improved, and the additional labor cost is increased.
In view of the above-mentioned drawbacks, the present inventors have actively studied and innovated to create a new structure of control system suitable for starting and running of a motor, so as to have industrial utility value.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a control system suitable for starting and running a motor and an implementation method thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the control system suitable for starting and running of the motor comprises a control panel, wherein a control scheduling device, a plurality of output control modules and a collecting device are arranged on the control panel, each output control module is provided with a mutually independent control module, the control end of the control scheduling device is connected with the controlled end of the output control module, the output end of the output control module is connected to a working device, the input end of the control scheduling device is connected with the output end of the collecting device, and the collecting end of the collecting device is connected with the working device; the output control module comprises an air circuit breaker, a current transformer, a plurality of alternating current contactors and a control unit, wherein the output end of the air circuit breaker is connected with the input end of the alternating current contactors through the current transformer, the output end of the alternating current contactors is connected with a working device, the control end of the control unit is connected with the controlled end of the alternating current contactors, and the receiving end of the control unit is connected with the feedback end of the alternating current contactors.
Further, the control system suitable for starting and running the motor, wherein the control scheduling device comprises a control scheduling chip, a control end of the control scheduling chip is connected with a controlled end of the output control module through a communication connector, the controlled end of the control scheduling chip is connected with a control end of the remote controller, an output end of the control scheduling chip is connected with an input end of the three-phase voltage detection device, and an output end of the three-phase voltage detection device is connected to a three-phase voltage output end.
Still further, a control system suitable for motor start and operation, wherein, collection device includes gathers control chip, gather control chip's output and control dispatch device's input through communication connector and link to each other, gather control chip's input and switch value input detector's output and link to each other, still link to each other with analog input detector output simultaneously.
Still further, a control system suitable for motor start and operation, wherein, control unit includes control chip, control chip's controlled end links to each other with control dispatch device's control end through communication connector, control chip's receiving terminal links to each other with alternating current contactor's feedback end through feedback connector, control chip's control end links to each other with alternating current contactor's controlled end through the relay, control chip's detection end links to each other with three-phase current through three-phase current detector.
Still further, a control system suitable for motor start and operation, wherein, be connected with the relay protector between the control end of control chip and the controlled end of alternating current contactor.
Still further, the control system is suitable for starting and running of the motor, wherein the input end of the control chip is connected with the output end of the starting and stopping signal device.
Still further, a control system suitable for motor start-up and operation, wherein, the communication connector is RS485.
Still further, the control system is suitable for starting and running of the motor, wherein the output control module is a star-delta starting control module or a branch coil starting control module.
Still further, a control system suitable for motor start and operation, wherein, star triangle start control module includes air circuit breaker, current transformer, three independent alternating current contactor and control unit, air circuit breaker's output passes through current transformer and links to each other with first alternating current contactor, second alternating current contactor and third alternating current contactor's input respectively, control unit's control end links to each other with first alternating current contactor, second alternating current contactor and third alternating current contactor's controlled end, first alternating current contactor, second alternating current contactor and third alternating current contactor's feedback end links to each other with control unit's receiving end.
Still further, a control system suitable for motor start and operation, wherein, branch coil start control module includes air circuit breaker, current transformer, two independent ac contactor and control unit, air circuit breaker's output passes through current transformer and links to each other with fourth ac contactor and fifth ac contactor's input respectively, control unit's control end links to each other with fourth ac contactor and fifth ac contactor's controlled end, fourth ac contactor and fifth ac contactor's feedback end links to each other with control unit's receiving end.
A method for implementing motor start and operation, comprising the steps of:
step 1: assembling the control circuit breaker, the current transformer, the alternating current contactor and the control unit to form an output control module;
step 2: connecting the output end of the output control module with a working device, and connecting the controlled end of the output control module with the control end of the control scheduling device;
step 3: the control unit of the output control module is controlled by the control of the control scheduling device;
step 4: after receiving the signal, the control unit controls the control unit through the control chip;
step 5: the control chip controls the alternating current contactor through the control relay by the signals in the step 4, so that the starting according to the set sequence is realized;
step 6: when the alternating current contactor is started, the feedback connector receives feedback information from the alternating current contactor in the step 5 at any time;
step 7: after the received feedback information is fed back to the control chip, corresponding automatic operation is carried out through the fed-back information control chip;
step 8: when the operation is stopped, the operation is performed according to the sequence from the step 3 to the step 5.
By means of the scheme, the invention has at least the following advantages:
the invention combines the air circuit breaker, the current transformer, the alternating current contactor and the control unit into one module, namely the output control module, so that an operator can conveniently and quickly wire the device, the error rate is reduced, the possibility of post reworking is reduced, and the aim of reducing the cost is achieved. The invention can also simply and effectively control the output control module through the control unit, reduce the more complex opening mode of operators, realize simple and convenient control through automatic control and reduce the operation difficulty of operators.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of an output control module according to the present invention;
FIG. 3 is a schematic diagram of the control scheduler of the present invention;
FIG. 4 is a schematic diagram of the structure of the acquisition device of the present invention;
fig. 5 is a schematic structural view of the control unit of the present invention;
FIG. 6 is a schematic diagram of a triangle start control module according to the present invention;
fig. 7 is a schematic structural diagram of a loop start control module according to the present invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Examples
As shown in fig. 1 and fig. 2, a control system suitable for starting and running a motor comprises a control panel, wherein a control scheduling device 1, a plurality of output control modules 2 and a collection device 3 are arranged on the control panel, each output control module 2 is an independent control module, the control end of the control scheduling device 1 is connected with the controlled end of the output control module 2, the output end of the output control module 2 is connected to a working device, the input end of the control scheduling device 1 is connected with the output end of the collection device 3, and the collection end of the collection device 3 is connected with the working device; the output control module 2 is composed of an air circuit breaker 21, a current transformer 22, a plurality of alternating current contactors 23 and a control unit 24, wherein the output end of the air circuit breaker is connected with the input end of the alternating current contactors 23 through the current transformer 22, the output end of the alternating current contactors 23 is connected with a working device, the control end of the control unit 24 is connected with the controlled end of the alternating current contactors 23, and the receiving end of the control unit 24 is connected with the feedback end of the alternating current contactors 23. The air circuit breaker 21, the current transformer 22, the alternating current contactor 23 and the control unit 24 are combined into a module, so that the air circuit breaker is convenient for operators to carry out later wiring, and meanwhile, the air circuit breaker can also conveniently carry out a device for controlling the back end.
In the invention, as shown in fig. 3, the control scheduling device 1 comprises a control scheduling chip 11, wherein the control end of the control scheduling chip 11 is connected with the controlled end of the output control module 2 through a communication connector 4, the controlled end of the control scheduling chip 11 is connected with the control end of a remote controller 12, the output end of the control scheduling chip 11 is connected with the input end of a three-phase voltage detection device 13, and the output end of the three-phase voltage detection device 13 is connected to the three-phase voltage output end, so that the remote control of the output control module 2 can be realized through the control scheduling device 1, and the convenience is brought to operators.
In the invention, as shown in fig. 4, the acquisition device 3 comprises an acquisition control chip 31, the output end of the acquisition control chip 31 is connected with the input end of the control scheduling device 1 through a communication connector 4, the input end of the acquisition control chip 31 is connected with the output end of the switching value input detector 32 and is also connected with the output end of the analog value input detector 33, and the acquisition device 3 can pre-check the circuit in the system in advance, so that the instability of the circuit of the system can be prevented, and the damage of the device in the circuit can be prevented.
In the present invention, as shown in fig. 5, the control unit 24 includes a control chip 241, where a controlled end of the control chip 241 is connected to a control end of the control scheduling device 1 through the communication connector 4, a receiving end of the control chip 241 is connected to a feedback end of the ac contactor 23 through the feedback connector 242, a control end of the control chip 241 is connected to a controlled end of the ac contactor 23 through the relay 243, and a detection end of the control chip 241 is connected to three-phase current through the three-phase current detector 245, so that control over the ac contactor 23 can be achieved through the control unit 24, and further simple and effective control is achieved, and operation of an operator is facilitated.
The relay protector 244 is connected between the control end of the control chip and the controlled end of the ac contactor 23, so that other devices in the control unit can be protected, and the damaged devices are reduced to the minimum, thereby reducing the cost.
The input end of the control chip is connected with the output end of the start and stop signal device 246, and is manually controlled in a manual mode, so that the manual operation of operators is convenient, and a plurality of operation modes can be provided.
The communication connector is RS485.
The output control module is a star-delta starting control module or a branch loop starting control module.
A method for implementing motor start and operation, comprising the steps of:
step 1: assembling the control circuit breaker, the current transformer, the alternating current contactor and the control unit to form an output control module;
step 2: connecting the output end of the output control module with a working device, and connecting the controlled end of the output control module with the control end of the control scheduling device;
step 3: the control unit of the output control module is controlled by the control of the control scheduling device;
step 4: after receiving the signal, the control unit controls the control unit through the control chip;
step 5: the control chip controls the alternating current contactor through the control relay by the signals in the step 4, so that the starting according to the set sequence is realized;
step 6: when the alternating current contactor is started, the feedback connector receives feedback information from the alternating current contactor in the step 5 at any time;
step 7: after the received feedback information is fed back to the control chip, corresponding automatic operation is carried out through the fed-back information control chip;
step 8: when the operation is stopped, the operation is performed according to the sequence from the step 3 to the step 5.
The automatic operation is to continue the operation according to the set program or stop closing the AC contactor.
The above-described implementation is set in such a manner that the setting sequence in the setting sequence start is the sequence that the general operator starts one by one.
Example 1
As shown in fig. 6, the star delta starting control module comprises an air circuit breaker, a current transformer, three independent ac contactors and a control unit, wherein the output end of the air circuit breaker is respectively connected with the input ends of the first ac contactor, the second ac contactor and the third ac contactor through the current transformer, the control end of the control unit is connected with the controlled ends of the first ac contactor, the second ac contactor and the third ac contactor, the feedback ends of the first ac contactor, the second ac contactor and the third ac contactor are connected with the receiving end of the control unit, and the control unit 24 is used for simultaneously controlling the three independent ac contactors, so that the output control module 2 is formed by the air circuit breaker and the current transformer. The star-delta starting control module can work on the refrigerating defrosting fan device, the star-delta starting control module is only aimed at one working mode, the star-delta starting control module can be assembled according to the structure to form the star-delta starting control module if required, a plurality of pairs of matched devices work through a plurality of star-delta starting control modules, and the control scheduling device can control all the star-delta starting control modules, so that the difficulty of operation of operators is reduced, and meanwhile, the difficulty of wiring of the operators can be reduced
Example two
As shown in fig. 7, the branch coil starting control module comprises an air circuit breaker, a current transformer, two independent ac contactors and a control unit, wherein the output end of the air circuit breaker is respectively connected with the input ends of a fourth ac contactor and a fifth ac contactor through the current transformer, the control end of the control unit is connected with the controlled ends of the fourth ac contactor and the fifth ac contactor, and the feedback ends of the fourth ac contactor and the fifth ac contactor are connected with the receiving end of the control unit. Similar to the above embodiment, the number of ac contactors is reduced, the working principle is the same, and the adopted devices are the same, and only the different devices are used for working, which is described in detail herein.
The working principle of the invention is as follows:
when the control device is in operation, the air circuit breaker, the current transformer, the alternating current contactor and the control unit are assembled into an output control module, before the output control module is assembled, the air circuit breaker, the current transformer and the alternating current contactor are identical to the normal connection mode, after the connection is completed, the alternating current contactor is controlled by adding the control unit on the alternating current contactor, the added control unit, the air circuit breaker, the current transformer and the alternating current contactor are assembled into a module, when the control device is in operation, the control chip is used for independently starting or stopping the alternating current contactor according to the sequence, and a feedback signal is fed back to the control chip, and the output control module is matched according to the requirement of a rear-end device, so that the control of the rear-end device can be realized, namely, the problem of complex wiring in the later period is simplified, and the simple and effective control is realized.
The invention combines the air circuit breaker, the current transformer, the alternating current contactor and the control unit into one module, namely the output control module, so that an operator can conveniently and quickly wire the device, the error rate is reduced, the possibility of post reworking is reduced, and the aim of reducing the cost is achieved. The invention can also simply and effectively control the output control module through the control unit, reduce the more complex opening mode of operators, realize simple and convenient control through automatic control and reduce the operation difficulty of operators.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a control system suitable for motor start-up and operation which characterized in that: the intelligent control system comprises a control panel, wherein a control scheduling device, a plurality of output control modules and a collection device are arranged on the control panel, each output control module is provided with a control module which is independent of the other, the control end of the control scheduling device is connected with the controlled end of the output control module, the output end of the output control module is connected to a working device, the input end of the control scheduling device is connected with the output end of the collection device, and the collection end of the collection device is connected with the working device;
the output control module is composed of an air circuit breaker, a current transformer, a plurality of alternating current contactors and a control unit, wherein the output end of the air circuit breaker is connected with the input end of the alternating current contactors through the current transformer, the output end of the alternating current contactors is connected with a working device, the control end of the control unit is connected with the controlled end of the alternating current contactors, and the receiving end of the control unit is connected with the feedback end of the alternating current contactors;
the control scheduling device comprises a control scheduling chip, a control end of the control scheduling chip is connected with a controlled end of the output control module through a communication connector, the controlled end of the control scheduling chip is connected with a control end of the remote controller, an output end of the control scheduling chip is connected with an input end of the three-phase voltage detection device, and an output end of the three-phase voltage detection device is connected to a three-phase voltage output end;
the acquisition device comprises an acquisition control chip, the output end of the acquisition control chip is connected with the input end of the control scheduling device through a communication connector, and the input end of the acquisition control chip is connected with the output end of the switching value input detector and is also connected with the output end of the analog value input detector;
the control unit comprises a control chip, wherein the controlled end of the control chip is connected with the control end of the control scheduling device through a communication connector, the receiving end of the control chip is connected with the feedback end of the alternating current contactor through a feedback connector, the control end of the control chip is connected with the controlled end of the alternating current contactor through a relay, and the detection end of the control chip is connected with three-phase current through a three-phase current detector;
the output control module is a star-delta starting control module or a branch coil starting control module;
the star-delta starting control module comprises an air circuit breaker, a current transformer, three independent alternating-current contactors and a control unit, wherein the output end of the air circuit breaker is respectively connected with the input ends of a first alternating-current contactor, a second alternating-current contactor and a third alternating-current contactor through the current transformer, the control end of the control unit is connected with the controlled ends of the first alternating-current contactor, the second alternating-current contactor and the third alternating-current contactor, and the feedback ends of the first alternating-current contactor, the second alternating-current contactor and the third alternating-current contactor are connected with the receiving end of the control unit;
the branch coil starting control module comprises an air circuit breaker, a current transformer, two independent alternating current contactors and a control unit, wherein the output end of the air circuit breaker is connected with the input ends of a fourth alternating current contactor and a fifth alternating current contactor respectively through the current transformer, the control end of the control unit is connected with the controlled ends of the fourth alternating current contactor and the fifth alternating current contactor, and the feedback ends of the fourth alternating current contactor and the fifth alternating current contactor are connected with the receiving end of the control unit.
2. A control system adapted for motor start-up and operation as set forth in claim 1 wherein: and a relay protector is connected between the control end of the control chip and the controlled end of the alternating current contactor.
3. A control system adapted for motor start-up and operation as set forth in claim 1 wherein: the input end of the control chip is connected with the output end of the starting and stopping signal device.
4. A method for implementing starting and running of a motor, applied to the system of claim 1, comprising the steps of:
step 1: assembling the control circuit breaker, the current transformer, the alternating current contactor and the control unit to form an output control module;
step 2: connecting the output end of the output control module with a working device, and connecting the controlled end of the output control module with the control end of the control scheduling device;
step 3: the control unit of the output control module is controlled by the control of the control scheduling device;
step 4: after receiving the signal, the control unit controls the control unit through the control chip;
step 5: the control chip controls the alternating current contactor through the control relay by the signals in the step 4, so that the starting according to the set sequence is realized;
step 6: when the alternating current contactor is started, the feedback connector receives feedback information from the alternating current contactor in the step 5 at any time;
step 7: after the received feedback information is fed back to the control chip, corresponding automatic operation is carried out through the fed-back information control chip;
step 8: when the operation is stopped, the operation is performed according to the sequence from the step 3 to the step 5.
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| CN201810529627.4A CN108736766B (en) | 2018-05-29 | 2018-05-29 | Control system suitable for starting and running of motor and implementation method thereof |
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| CN201810529627.4A CN108736766B (en) | 2018-05-29 | 2018-05-29 | Control system suitable for starting and running of motor and implementation method thereof |
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| CN108736766B true CN108736766B (en) | 2024-02-09 |
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