CN114578779A - Motor control loop optimization method of distributed control system - Google Patents
Motor control loop optimization method of distributed control system Download PDFInfo
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- CN114578779A CN114578779A CN202210327862.XA CN202210327862A CN114578779A CN 114578779 A CN114578779 A CN 114578779A CN 202210327862 A CN202210327862 A CN 202210327862A CN 114578779 A CN114578779 A CN 114578779A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005457 optimization Methods 0.000 title claims abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33273—DCS distributed, decentralised controlsystem, multiprocessor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a motor control loop optimization method of a distributed control system, which comprises the distributed control system, wherein the distributed control system comprises a main operation signal access module, a slave operation signal access module, an output module relay, a first motor starting signal line, a second motor starting signal line and an MCC motor control end, one side of the main operation signal access module is connected with the first motor starting signal line, and one side of the slave operation signal access module is connected with the second motor starting signal line; the preparation, operation, external stop of the motor, and the filing, recording and displaying of the interlocking stop signal data are convenient for analyzing and searching faults.
Description
Technical Field
The invention relates to the technical field of motor control loops of distributed control systems, in particular to a motor control loop optimization method of a distributed control system.
Background
In the pulping and papermaking process control, a motor control needs to pass through a distributed control system, basic signals for controlling the motor are preparation, operation and starting signals, or current and frequency given signals are added, signals of a control loop are that a motor control cabinet keeps the preparation signals and sends the signals to a digital quantity input module of the distributed control system, if the signals exist, the high level is 1, a digital output module of the distributed control system outputs a motor control cabinet which keeps the starting signals to output MCC after being isolated by a relay, if the signals exist, the high level is 1, and after the motor is started, an auxiliary contact of a contactor feeds back operation signals to signals output by self-locking control of the distributed control system, so that in the motor operation process, the interruption of the three signals can jump and stop the motor, possibly the input module of the distributed control system, and the auxiliary contact of an output relay or the contactor fails; the faults of a local control switch, a remote control switch, a contact for feedback operation and a contactor for controlling movement in the aspect of a motor control cabinet are finally few in line and fuse faults, and the motor control in the approach section of the paper machine is complex and has too much interlocking reaction with parameters such as pressure, flow and the like, and the motor also has control capable of starting and stopping.
The invention can reduce the jump stop caused by the signal failure, the distributed control system controls the two contacts of the relay of the output module of the motor to be connected in parallel for use, one contact can be electrified when the other contact is poor, the occurrence of the jump stop failure is reduced, the failure signal can be recorded when the failure occurs, and the quick overhaul by the working personnel is convenient.
Disclosure of Invention
The invention aims to provide a motor control loop optimization method of a distributed control system, which aims to solve the problems that the section jump stop reasons proposed in the background technology are too many, if the motor jump stop, the control loops and the interlocking aspects are overlapped, the possible reasons are very many, the detection cannot have higher pertinence, the uncertainty is high, and the normal production of a pulping paper machine is influenced because time is consumed if the detection is carried out one by one.
In order to achieve the purpose, the invention provides the following technical scheme: a motor control loop optimization method of a distributed control system comprises the distributed control system, wherein the distributed control system comprises a main operation signal access module, a slave operation signal access module, an output module relay, a first motor starting signal line, a second motor starting signal line and an MCC motor control end, one side of the main operation signal access module is connected with the first motor starting signal line, one side of the slave operation signal access module is connected with the second motor starting signal line, the main operation signal access module is connected with the output module relay through the first motor starting signal line, the slave operation signal access module is connected with the output module relay through the second motor starting signal line, the output module relay is connected with the MCC motor control end through a lead, and the MCC motor control end runs with RSVIEW32 monitoring software, the additional slave operation signal access module avoids the failure or the error disconnection of the module.
As a preferred technical solution of the present invention, the master operation signal access module and the slave operation signal access module are both connected to a contactor of the motor through a wire, and the master operation signal access module and the slave operation signal access module are both connected to the motor.
As a preferred technical solution of the present invention, the master operation signal access module and the slave operation signal access module monitor and control the same signal, and if there is no signal in the master operation signal access module and the slave operation signal access module at the same time during operation, it is able to determine a contact fault at the MCC motor control end.
As a preferred technical scheme of the invention, the first electric motor starting signal line and the second electric motor starting signal line are connected in parallel, and the first electric motor starting signal line and the second electric motor starting signal line are connected in parallel for use, so that redundancy of output contacts is realized, one contact is still connected when being poor, the other contact can still be connected, the motor can also work normally, and the fault of motor jump stop is reduced.
A method for optimizing a motor control loop of a distributed control system comprises the following steps:
s1, adding a slave operation signal access module: a new DI module is added in the traditional distributed control system to serve as a slave operation signal access module of all motors;
s2, connecting the motor to a distributed control system: the staff uses the wire to connect the distributed control system with the motor;
s3, respectively connecting the master-slave operation signal with an output module relay: the working personnel connects the main operation signal access module with the slave operation signal access module and the output module through the relay;
s4, connecting the output module relay with the control end of the MCC motor: the working personnel use the wire to connect the output module relay with the control end of the MCC motor;
s5, starting RSVIEW32 monitoring software: the staff initiates the RSVIEW32 monitoring software.
As a preferred technical solution of the present invention, in step 2, the distributed control system is connected to a motor, and the motor is connected to the master operation signal access module and the slave operation signal access module respectively.
As a preferred technical solution of the present invention, in step 3, the master operation signal access module and the slave operation signal access module are connected to the output module relay, the master operation signal access module is connected to the output module relay through the first electric motor start signal line, and the slave operation signal access module is connected to the output module relay through the second electric motor start signal line.
As a preferred technical solution of the present invention, in the step 5, the RSVIEW32 monitoring software records the external stop, the chain stop, the motor master signal and the motor slave signal of the motor, adds a number-twist filing database, and adds a motor status picture list diagram.
Compared with the prior art, the invention has the beneficial effects that: a slave operation signal access module is additionally arranged, and operation feedback is respectively carried out through the operation signal access module and the main operation signal access module, so that the distributed control system is ensured to carry out redundant processing on the relay, and the possibility of jump stop of the motor in operation is reduced; the preparation, operation, external stop of the motor, and the filing, recording and displaying of the interlocking stop signal data are convenient for analyzing and searching faults.
Drawings
FIG. 1 is a schematic diagram of a distributed control system according to the present invention;
FIG. 2 is a connection diagram of the MCC motor control end and the first motor start signal line according to the invention;
FIG. 3 is a flow chart of the present invention.
In the figure: 1. a distributed control system; 2. a main operation signal access module; 3. accessing the module from the operation signal; 4. an output module relay; 5. a MCC motor control terminal; 6. a first motor starting signal line; 7. The second motor starting signal line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a method for optimizing a motor control loop of a distributed control system, which includes a distributed control system 1, the distributed control system 1 includes a master operation signal access module 2, a slave operation signal access module 3, an output module relay 4, a first motor start signal line 6, a second motor start signal line 7 and an MCC motor control terminal 5, one side of the master operation signal access module 2 is connected with the first motor start signal line 6, one side of the slave operation signal access module 3 is connected with the second motor start signal line 7, the master operation signal access module 2 is connected with the output module relay 4 through the first motor start signal line 6, the MCC motor control terminal 5 runs RSVIEW32 monitoring software therein, the slave operation signal access module 3 is connected with the output module relay 4 through the second motor start signal line 7, the output module relay 4 is connected with the MCC motor control end 5 through a wire, and the operation signal access module 3 is additionally arranged to avoid the fault or the error break of the module.
The main operation signal access module 2 and the slave operation signal access module 3 are both connected with a contactor of the motor through a lead, and the main operation signal access module 2 and the slave operation signal access module 3 are both connected with the motor.
The main operation signal access module 2 and the slave operation signal access module 3 monitor and control the same signal, if the main operation signal access module 2 and the slave operation signal access module 3 do not have signals at the same time during operation, the contact fault of the MCC motor control terminal 5 can be judged.
The first motor starting signal line 6 and the second motor starting signal line 7 are connected in parallel, and the first motor starting signal line 6 and the second motor starting signal line 7 are connected in parallel for use, so that redundancy of output contacts is realized, one contact is ensured to be still connected when the other contact is poor, the motor can still normally work, and the fault of motor jump stop is reduced.
A method for optimizing a motor control loop of a distributed control system comprises the following steps:
s1, adding a slave operation signal access module 3: a new DI module is added in the traditional distributed control system 1 to serve as a slave operation signal access module 3 of all motors;
s2, connecting the motor to the distributed control system 1: the staff connects the distributed control system 1 with the motor by using a lead;
s3, respectively connecting the master-slave operation signals with the output module relay 4: the working personnel connect the main operation signal access module 2 with the slave operation signal access module 3 and the output module relay 4;
s4, connecting the output module relay 4 with the MCC motor control end 5: the working personnel use a lead to connect the output module relay 4 with the MCC motor control end 5;
s5, starting RSVIEW32 monitoring software: the staff initiates the RSVIEW32 monitoring software.
In the step 2, the distributed control system 1 is connected with a motor, and the motor is respectively connected with the main operation signal access module 2 and the slave operation signal access module 3.
In the step 3, the main operation signal access module 2 and the slave operation signal access module 3 are connected with the output module relay 4, the main operation signal access module 2 is connected with the output module relay 4 through a first motor starting signal wire 6, and the slave operation signal access module 3 is connected with the output module relay 4 through a second motor starting signal wire 7.
In the step 5, RSVIEW32 monitoring software records external stop, interlocking stop, motor main signals and motor auxiliary signals of the motor, a data-set filing database is additionally arranged, and a motor state picture list diagram is added.
According to the above description, the invention is known by adding a new slave operation signal access module 3, the slave operation signal access module 3 and the master operation signal access module 2 are in different modules, thus avoiding that the same motor operation signal passes through the master operation signal access module 2 and the slave operation signal access module 3 due to module failure or error disconnection, because the master operation signal access module 2 and the slave operation signal access module 3 simultaneously monitor and control the same signal, if the operation is performed, the master operation signal access module 2 and the slave operation signal access module 3 do not have signals at the same time, the contact failure of the MCC motor control terminal 5 can be judged, if one signal failure and the other signal failure are normal, the motor cannot be failed and stopped, thus reducing the possibility of influencing production due to shutdown, and the first electric motor starting signal line 6 and the second electric motor starting signal line 7 are connected in parallel for use, the redundancy of the output contacts is realized, when one contact is poor, the other contact is still connected, the motor can work normally, and the fault of the motor jump stop is reduced.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A motor control loop of a distributed control system comprises the distributed control system (1) and is characterized in that the distributed control system (1) comprises a main operation signal access module (2), a slave operation signal access module (3), an output module relay (4), a first motor starting signal line (6), a second motor starting signal line (7) and an MCC motor control end (5), wherein one side of the main operation signal access module (2) is connected with the first motor starting signal line (6), one side of the slave operation signal access module (3) is connected with the second motor starting signal line (7), the main operation signal access module (2) is connected with the output module relay (4) through the first motor starting signal line (6), the slave operation signal access module (3) is connected with the output module relay (4) through the second motor starting signal line (7), the output module relay (4) is connected with an MCC motor control end (5) through a wire, and RSVIEW32 monitoring software runs in the MCC motor control end (5).
2. A motor control circuit for a distributed control system according to claim 1, wherein: the main operation signal access module (2) and the slave operation signal access module (3) are connected with a contactor of the motor through wires.
3. A motor control circuit for a distributed control system according to claim 1, wherein: the main operation signal access module (2) and the slave operation signal access module (3) monitor and control the same signal.
4. A distributed control system motor control circuit according to claim 1, wherein said first motor start signal line (6) and said second motor start signal line (7) are connected in parallel.
5. Method for the optimization of the motor control loop of a distributed control system according to claims 1-4, comprising the steps of:
s1, adding a slave operation signal access module (3): adding a new DI module as a slave operation signal access module (3) of all motors in the traditional distributed control system (1);
s2, connecting the motor to the distributed control system (1): the staff uses the wire to connect the distributed control system (1) with the motor;
s3, respectively connecting the master-slave operation signal with an output module relay (4): the working personnel connect the main operation signal access module (2) with the slave operation signal access module (3) and the output module relay (4);
s4, connecting the output module relay (4) with the MCC motor control end (5): the working personnel use the lead to connect the output module relay (4) with the MCC motor control end (5);
s5, starting RSVIEW32 monitoring software: the staff initiates the RSVIEW32 monitoring software.
6. The method for optimizing the motor control loop of the distributed control system according to claim 5, wherein in the step 2, the distributed control system (1) is connected with motors, and the motors are respectively connected with the master operation signal access module (2) and the slave operation signal access module (3).
7. The optimization method for the motor control loop of the distributed control system according to claim 5, wherein in step 3, the master operation signal access module (2) and the slave operation signal access module (3) are connected with the output module relay (4), the master operation signal access module (2) is connected with the output module relay (4) through a first electric motor starting signal line (6), and the slave operation signal access module (3) is connected with the output module relay (4) through a second electric motor starting signal line (7).
8. The method as claimed in claim 5, wherein in step 5, the RSVIEW32 monitoring software records external stop, chain stop, motor master signal and motor slave signal of the motor, adds a data file database, and adds a motor status picture list chart.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210327862.XA CN114578779A (en) | 2022-03-30 | 2022-03-30 | Motor control loop optimization method of distributed control system |
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| CN202210327862.XA CN114578779A (en) | 2022-03-30 | 2022-03-30 | Motor control loop optimization method of distributed control system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048882A (en) * | 2015-08-20 | 2015-11-11 | 佛山市威灵洗涤电机制造有限公司 | Motor starting circuit, motor, and motor starting method |
| CN110854854A (en) * | 2019-12-03 | 2020-02-28 | 中国船舶重工集团公司第七0四研究所 | Power limit controller for energy management system of electric propulsion ship |
| CN111694271A (en) * | 2020-07-15 | 2020-09-22 | 中国核动力研究设计院 | Redundancy fault-tolerant control system and method based on distributed control system |
| CN112526341A (en) * | 2020-11-27 | 2021-03-19 | 中车大连机车研究所有限公司 | Equipment for detecting faults of traction motor system of diesel locomotive |
| RU2755879C1 (en) * | 2021-02-01 | 2021-09-22 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Automated process control system |
-
2022
- 2022-03-30 CN CN202210327862.XA patent/CN114578779A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048882A (en) * | 2015-08-20 | 2015-11-11 | 佛山市威灵洗涤电机制造有限公司 | Motor starting circuit, motor, and motor starting method |
| CN110854854A (en) * | 2019-12-03 | 2020-02-28 | 中国船舶重工集团公司第七0四研究所 | Power limit controller for energy management system of electric propulsion ship |
| CN111694271A (en) * | 2020-07-15 | 2020-09-22 | 中国核动力研究设计院 | Redundancy fault-tolerant control system and method based on distributed control system |
| CN112526341A (en) * | 2020-11-27 | 2021-03-19 | 中车大连机车研究所有限公司 | Equipment for detecting faults of traction motor system of diesel locomotive |
| RU2755879C1 (en) * | 2021-02-01 | 2021-09-22 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Automated process control system |
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