CN101560741B - Method for controlling flow of transmission control system of paper machine - Google Patents
Method for controlling flow of transmission control system of paper machine Download PDFInfo
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- CN101560741B CN101560741B CN2009100989145A CN200910098914A CN101560741B CN 101560741 B CN101560741 B CN 101560741B CN 2009100989145 A CN2009100989145 A CN 2009100989145A CN 200910098914 A CN200910098914 A CN 200910098914A CN 101560741 B CN101560741 B CN 101560741B
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Abstract
The invention discloses a method for controlling the flow of a transmission control system of a paper machine. In the method, a control system comprising a programmable control device PLC, a speed governing device and a field bus is used; the control operating flow of preparation, operation, creeping, shut-down, cleaning and fault treating functions, which is included in the transmission control system of the paper machine is modularized; according to the functions required to control by the transmission system of the paper machine, 10 to 50 subsection states are set, and the address indexed addressing mode is used for subsection state logic control of all subsections such as logic conversion, data treatment and speed/torque control switch; the PLC repeatedly controls the transmission system according to the steps of input sampling, program operation, output refreshing and under the support of a flow control module; and the speed governing device executes all functions according to thePLC output information transferred by the field bus. The method has the advantages of reliably and harmoniously controlling the operating speed, speed difference control, speed ratio adjustment and t he like of the paper machine and facilitating the yield and the quality of the paper machine.
Description
Technical field
The present invention relates to a kind of transmission control flow method, particularly a kind of flow control method that is used for transmission control system of paper machine.
Background technology
Continuous development along with industrial automation, and paper industry is to the raising day by day of production efficiency and product quality requirement, the flow control method that traditional every motor to the paper machine transmission system is controlled separately can not satisfy the requirement of the high speed of a motor vehicle, extensive papermaking automatic production process, need simultaneously multiple electric motors to be carried out high efficiency automatic Synchronization Control, so that coordinated operation better.Synchronisation control means has modes such as analogue amplifier Synchronization Control, the chain Synchronization Control of electrodynamic type the earliest; The former has defectives such as poor anti-interference and drift, and the latter has and adjusts deficiencies such as inconvenient and bulky.Since the mid-90 field bus technique enter the industrialization practical stage, paper machine transmission adopted programmable controller PLC and field bus communication mode are carried out many motor synchronous centralized Control, the reliability and the security of transmission system have greatly been improved, make things convenient for the technical staff to carry out the meticulous adjustment of technological parameter, make paper machine operating rate, the speed of a motor vehicle, speed differ from the control that control, speed ratio adjusting or the like technological parameter obtains reliably, coordinates, to satisfy the needs of paper machine operate as normal, be beneficial to the paper web of production better quality and reduce end breakage rate.Prior art paper machine transmission system PLC flow control method, adopt the mode of combination function piece, the papermaking transmission is integrated into the special function piece, can use comparatively easily, but must additionally buy special-purpose flow process control bag, not only price is expensive unusually, increased application cost, and have following deficiency: 1, specific aim is poor, only divides controll block by function, and subfunction is called less; 2, the displaying contents of branch's state is on the low side, is unfavorable for that operating personnel differentiate; 3, parametric classification is clear inadequately, is unfavorable for that the attendant revises; 4, versatility and portable relatively poor, different branches paper machine speed-regulating control device will be compiled different control commands; 5, the protection flow and method is on the low side, poor stability; 6, a little less than the fault diagnosis functions.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the defective that prior art exists, provide a kind of with strong points, versatility good, maintain easily, the safe flow control method that is used for transmission control system of paper machine.
The present invention addresses the above problem the technical scheme that is adopted: this is used for the flow control method of transmission control system of paper machine, be characterized in: adopt to comprise programmable control unit PLC, the control system of arrangements for speed regulation and fieldbus is carried out flow process control, the preparation that described flow control method comprises transmission control system of paper machine, operation, creep, stop, the control operation process moduleization of cleaning and troubleshooting function, adopt process control module to carry out the control operation of function, described process control module requires 10～50 branch's states of function setting of control according to the paper machine transmission system, process control module adopts the allocation index addressing system to carry out the logical transition of each branch, branch's state logic control that data processing and speed or torque control are switched, described programmable control unit PLC according to the step of " input sample → sequential operation → output refreshes " repeatedly circularly, under the process control module support, carry out the control of each function of paper machine transmission system, the complete every function of programmable control unit PLC output information that arrangements for speed regulation transmit according to fieldbus.
The present invention is used for the flow control method of transmission control system of paper machine, and described branch state is set to power on initially, it is not enough to prepare, branch prepares, communication is lost, the forward crawl, oppositely crawl, crawl stop, forward is creeped, normally operation, branch stop, oppositely creep, emergency, stop in emergency, clean operation, branch's fault and fault and reset 16.
The present invention is used for the flow control method of transmission control system of paper machine, and described process control module just is set to main circulating program module, inferior cyclic program module and system failure program module according to the priority level of control task;
The priority level of described main circulating program module is minimum, its cycle period is 100～500ms, and described programmable control unit PLC operation main circulating program module is carried out communication data, the auxiliary protection of transmission control system of paper machine, the state conversion and the processing data information of each branch according to the cycle period circulation;
The priority level of described cyclic program module is placed in the middle, its cycle period is 30～100ms, and described programmable control unit PLC operation time cyclic program module is carried out main speed of a motor vehicle control, Tension Control and each branch's speed or the torque control of transmission control system of paper machine;
The priority level of described system failure program module is the highest; belong to and to interrupt flow process; do not establish cycle period; described programmable control unit PLC operational system malfunction routine module is carried out the fault self-checking of transmission control system of paper machine; realize error protection; when the system failure takes place, stop all branch's operations automatically.
The present invention is used for the flow control method of transmission control system of paper machine, the state logic control of described branch is according to branch's state value and data directory, utilize the allocation index addressing system, realize branch's logical transition control, this branch's state logic control procedure is:
A, input current branch state and logic input word, described logic input word are the logical transition variablees that external signal, logic state and operational order are formed;
B, logic state transition sub-process piece judge that according to the current branch state and the logic input word of input obtain new branch's state, programmable control unit PLC shows new branch's status information;
C; branch's status information that must make new advances according to logic state transition sub-process piece; by the allocation index addressing system; on data directory, derive the arrangements for speed regulation control word; logic output word and branch's velocity amplitude; described arrangements for speed regulation control word and branch's velocity amplitude; flowing to branch's paper machine by fieldbus exchanges or direct current speeder; the logic output word flows to the third party system by Information Level network or hardwire mode; perhaps be used to form the flow process Rule of judgment of logic input word; perhaps as realizing the Speed Chain adjusting; the protection of wet end speed difference; the logic application conditions of functions such as branch's speed difference demonstration, described third party system is dcs DCS or paper machine control system MCS or quality control system QCS.
The present invention is used for the flow control method of transmission control system of paper machine, and described data directory is the parameter reference table that branch's state parameter that process control module is sorted out transmission control system of paper machine is made with logic output word, speed regulator control word, branch's velocity amplitude respectively;
Described branch state parameter and logic output word are made logic output concordance list, process control module reads function digit controlling value under each branch's state by logic output concordance list, be used for each flow process control of transmission control system of paper machine, and flow to the third party system by Information Level network or hardwire mode, realize the paper machine process interlocking;
Described branch state parameter and speed regulator control word are made speed regulator control word concordance list, process control module reads each function digit controlling value of the branch's paper machine speed-regulating control device under each branch's state by speed regulator control word concordance list, flow to arrangements for speed regulation through fieldbus, be used for each branch's paper machine speed-regulating control device control;
Described branch state parameter and branch's velocity amplitude are made branch's velocity amplitude concordance list, process control module reads the velocity amplitude of each branch's state by branch's velocity amplitude concordance list, programmable control unit PLC converts this velocity amplitude and obtains the engineering value of arrangements for speed regulation, sends branch's paper machine speed-regulating control device to via fieldbus and carries out.
The present invention is used for the flow control method of transmission control system of paper machine, each protected location control that the auxiliary protection of described main circulating program module comprises busbar voltage monitoring, fan condition monitoring, wet end speed difference is protected and disconnected paper is reported to the police.
The present invention compared with prior art has the following advantages: 1, flow control method of the present invention adopts the process control module structure at transmission control system of paper machine, improved specific aim, portability and the versatility of control method, overcome that the prior art specific aim is poor, the defective of versatility difference; 2, process control module of the present invention is provided with branch's state, process control module adopts status word address indexed addressing mode to carry out logical transition, data processing and the speed of each branch or branch's state logic control that torque control is switched, increase the control information amount greatly, improved the maintainability of control flow; 3, flow control method of the present invention is sorted out the various parameters of transmission control system of paper machine, makes logic output concordance list, speed regulator control word concordance list and branch's velocity amplitude concordance list, improves readability, makes things convenient for the technical staff to safeguard modification; 4, the present invention is provided with protected locations such as busbar voltage monitoring, fan condition monitoring, the difference protection of wet end speed and disconnected paper warning, has improved security of system and trouble diagnosibility.5, adopt flow control method of the present invention, make the flow process control of transmission control system of paper machine realize modularization and standardization, make things convenient for the technical staff to carry out the meticulous adjustment of technological parameter, the control that makes the operating rate of paper machine, fast difference control, speed ratio adjusting or the like technological parameter obtain reliably, coordinate is beneficial to the raising of paper machine output and quality.
Description of drawings
Fig. 1 is an embodiment of the invention major cycle flowage structure schematic diagram.
Fig. 2 is a embodiment of the invention time circulation process structural representation.
Fig. 3 is an embodiment of the invention branch state logic schematic diagram.
Fig. 4 is the state control flow Fig. 1 of embodiment of the invention branch.
Fig. 5 is the state control flow Fig. 2 of embodiment of the invention branch.
Fig. 6 is the state control flow Fig. 3 of embodiment of the invention branch.
Fig. 7 is the state control flow Fig. 4 of embodiment of the invention branch.
Fig. 8 is the state control flow Fig. 5 of embodiment of the invention branch.
Fig. 9 is the state control flow Fig. 6 of embodiment of the invention branch.
Figure 10 is the state control flow Fig. 7 of embodiment of the invention branch.
Figure 11 is the state control flow Fig. 8 of embodiment of the invention branch.
Figure 12 is the state control flow Fig. 9 of embodiment of the invention branch.
Figure 13 is the state control flow Figure 10 of embodiment of the invention branch.
Figure 14 is the state control flow Figure 11 of embodiment of the invention branch.
Figure 15 is the state control flow Figure 12 of embodiment of the invention branch.
Figure 16 is the state control flow Figure 13 of embodiment of the invention branch.
Figure 17 is the state control flow Figure 14 of embodiment of the invention branch.
Figure 18 is the state control flow Figure 15 of embodiment of the invention branch.
Figure 19 is application example transmission control system of paper machine structural representation Fig. 1 of the present invention.
Figure 20 is application example transmission control system of paper machine structural representation Fig. 2 of the present invention.
Figure 21 is application example transmission control system of paper machine structural representation Fig. 3 of the present invention.
Figure 22 is application example transmission control system of paper machine structural representation Fig. 4 of the present invention.
The specific embodiment
Below by embodiment, in conjunction with the accompanying drawings the present invention is further described.
Embodiment:
This is used for the flow control method of transmission control system of paper machine, adopts the control system that comprises programmable control unit PLC, arrangements for speed regulation and fieldbus to carry out flow process control.This flow control method, the preparation that transmission control system of paper machine is comprised, move, creep, stop, the control operation process moduleization of functions such as cleaning and troubleshooting, adopt process control module to carry out the control operation of function.Process control module requires 10～50 branch's states of function setting of control according to the paper machine transmission system, and that present embodiment being provided with powers on initially, prepares is not enough, branch prepares, communication is lost, forward crawl, reverse crawl, crawl stop, forward is creeped, normally move, branch stops, oppositely creep, emergency, stop in emergency, clean operation, branch's fault and fault 16 branch's states such as reset.Process control module adopts the allocation index addressing system to carry out logical transition, data processing and the speed of each branch or branch's state logic control that torque control is switched, programmable control unit PLC according to the step of " input sample → sequential operation → output refreshes " repeatedly circularly, under the process control module support, carry out the control of each function of paper machine transmission system, the complete every function of programmable control unit PLC output information that arrangements for speed regulation transmit according to fieldbus.
The process control module of embodiment flow control method just is set to main circulating program module, inferior cyclic program module and system failure program module according to the priority level of the transmission system parameter of being controlled.The priority level of main circulating program module is minimum, and cycle period is longer, is traditionally arranged to be 100～500ms.Referring to Fig. 1; main program control module main task is the state conversion of communication data, auxiliary protection, each branch and processing data information or the like, carries out the initial → communication data processings → auxiliary protection control that powers on → carry out each branch's logic control → each branch's data processing by the logic state transition sub-process according to the cycle period circulation.Wherein auxiliary protection comprises busbar voltage monitoring, fan condition monitoring, the protection of wet end speed difference, disconnected paper and reports to the police or the like.The priority level of inferior cyclic program module is than main circulating program module height, and cycle period is shorter, is provided with between 40～100ms, and present embodiment is made as 50ms.Referring to Fig. 2, inferior cyclic program module includes main speed of a motor vehicle control, Tension Control and each branch's speed or torque control, carries out the initial → main speed of a motor vehicle that powers on according to the cycle period circulation to control → carry out each branch's speed and load control by slope lifting sub-process and sharing of load sub-process.The priority level of system failure program module is the highest, is to interrupt flow process, does not establish cycle period; When PLC control device self check fault, move this process control module, realize failure protection function, the generation of preventing accident.State logic conversion, slope lifting and sharing of load are realized by corresponding sub-process, have improved the integrally-built compactedness of flow control method and the readability of transmission control system of paper machine.
The logic control of embodiment flow control method, i.e. the logical transition of each branch, data processing and speed or torque control all is based on branch's state and realizes, by the switching realization of branch's state.Branch's state logic control is according to branch's state value and data directory, utilizes the allocation index addressing system, realizes branch's logical transition control.This branch's state logic control procedure is referring to Fig. 3, earlier input current branch state and the logic input word be made up of external signal, logic state and operational order; The logic state transition sub-process is according to current branch state and logic input word, and through judging the new branch's state that obtains, the PLC control device shows new branch's status information; Pass through the allocation index addressing system according to new branch's state then; on data directory, derive branch's control word; branch's velocity amplitude and logic output word; wherein branch's control word flows to branch's paper machine with the branch velocity amplitude by fieldbus and exchanges or direct current speeder; the logic output word flows to dcs DCS or third party systems such as paper machine control system MCS or quality control system QCS by Information Level network or hardwire mode; perhaps be used to form the flow process Rule of judgment of logic input word, perhaps as realizing the Speed Chain adjusting; the protection of wet end speed difference; the logic application conditions of functions such as branch's speed difference demonstration.
Data directory of the present invention is branch's state parameter that process control module is sorted out the papermaking driving control system, respectively the parameter reference table made from logic output word, speed regulator control word, branch's velocity amplitude.Embodiment is provided with logic output concordance list, speed regulator control word concordance list and branch's velocity amplitude concordance list.
Logic output concordance list is that branch's state parameter and logic output word are made, process control module reads function digit controlling value under each branch's state by logic output concordance list, be used for each flow process control of papermaking driving control system and flow to the third party system, realize the paper machine process interlocking by Information Level network or hardwire mode.
Claims (6)
1. flow control method that is used for transmission control system of paper machine, it is characterized in that: adopt to comprise programmable control unit PLC, the control system of arrangements for speed regulation and fieldbus is carried out flow process control, the preparation that described flow control method comprises transmission control system of paper machine, operation, creep, stop, the control operation process moduleization of cleaning and troubleshooting function, adopt process control module to carry out the control operation of function, described process control module requires 10～50 branch's states of function setting of control according to the paper machine transmission system, process control module adopts the allocation index addressing system to carry out the logical transition of each branch, branch's state logic control that data processing and speed or torque control are switched, described programmable control unit PLC according to the step of " input sample → sequential operation → output refreshes " repeatedly circularly, under the process control module support, carry out the control of each function of paper machine transmission system, the complete every function of programmable control unit PLC output information that arrangements for speed regulation transmit according to fieldbus.
2. the flow control method that is used for transmission control system of paper machine according to claim 1 is characterized in that: described branch state is set to power on initially, it is not enough to prepare, branch prepares, communication is lost, the forward crawl, oppositely crawl, crawl stop, forward is creeped, normally operation, branch stop, oppositely creep, emergency, stop in emergency, clean operation, branch's fault and fault and reset 16.
3. the flow control method that is used for transmission control system of paper machine according to claim 1 and 2 is characterized in that: described process control module just is set to main circulating program module, inferior cyclic program module and system failure program module according to the priority level of control task;
The priority level of described main circulating program module is minimum, its cycle period is 100～500ms, and described programmable control unit PLC operation main circulating program module is carried out communication data, the auxiliary protection of transmission control system of paper machine, the state conversion and the processing data information of each branch according to the cycle period circulation;
The priority level of described cyclic program module is placed in the middle, its cycle period is 30～100ms, and described programmable control unit PLC operation time cyclic program module is carried out main speed of a motor vehicle control, Tension Control and each branch's speed or the torque control of transmission control system of paper machine;
The priority level of described system failure program module is the highest; belong to and to interrupt flow process; do not establish cycle period; described programmable control unit PLC operational system malfunction routine module is carried out the fault self-checking of transmission control system of paper machine; realize error protection; when the system failure takes place, stop all branch's operations automatically.
4. the flow control method that is used for transmission control system of paper machine according to claim 3, it is characterized in that: the state logic control of described branch is according to branch's state value and data directory, utilize the allocation index addressing system, realize branch's logical transition control, this branch's state logic control procedure is:
A, input current branch state and logic input word, described logic input word are the logical transition variablees that external signal, logic state and operational order are formed;
B, logic state transition sub-process piece judge that according to the current branch state and the logic input word of input obtain new branch's state, programmable control unit PLC shows new branch's status information;
C; branch's status information that must make new advances according to logic state transition sub-process piece; by the allocation index addressing system; on data directory, derive the arrangements for speed regulation control word; logic output word and branch's velocity amplitude; described arrangements for speed regulation control word and branch's velocity amplitude; flowing to branch's paper machine by fieldbus exchanges or direct current speeder; the logic output word flows to the third party system by Information Level network or hardwire mode; perhaps be used to form the flow process Rule of judgment of logic input word; perhaps as realizing the Speed Chain adjusting; the protection of wet end speed difference; the logic application conditions of branch's speed difference Presentation Function, described third party system is dcs DCS or paper machine control system MCS or quality control system QCS.
5. the flow control method that is used for transmission control system of paper machine according to claim 4 is characterized in that: described data directory is the parameter reference table that branch's state parameter that process control module is sorted out transmission control system of paper machine is made with logic output word, speed regulator control word, branch's velocity amplitude respectively;
Described branch state parameter and logic output word are made logic output concordance list, process control module reads function digit controlling value under each branch's state by logic output concordance list, be used for each flow process control of transmission control system of paper machine, and flow to the third party system by Information Level network or hardwire mode, realize the paper machine process interlocking;
Described branch state parameter and speed regulator control word are made speed regulator control word concordance list, process control module reads each function digit controlling value of the branch's paper machine speed-regulating control device under each branch's state by speed regulator control word concordance list, flow to arrangements for speed regulation through fieldbus, be used for each branch's paper machine speed-regulating control device control;
Described branch state parameter and branch's velocity amplitude are made branch's velocity amplitude concordance list, process control module reads the velocity amplitude of each branch's state by branch's velocity amplitude concordance list, programmable control unit PLC converts this velocity amplitude and obtains the engineering value of arrangements for speed regulation, sends branch's paper machine speed-regulating control device to via fieldbus and carries out.
6. the flow control method that is used for transmission control system of paper machine according to claim 5 is characterized in that: each protected location control that the auxiliary protection of described main circulating program module comprises busbar voltage monitoring, fan condition monitoring, wet end speed difference is protected and disconnected paper is reported to the police.
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| CN2009100989145A CN101560741B (en) | 2009-05-25 | 2009-05-25 | Method for controlling flow of transmission control system of paper machine |
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| CN2009100989145A CN101560741B (en) | 2009-05-25 | 2009-05-25 | Method for controlling flow of transmission control system of paper machine |
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| CN101967768B (en) * | 2010-11-01 | 2013-06-26 | 东莞理文造纸厂有限公司 | Method for controlling paper machine |
| CN103092168B (en) * | 2013-01-05 | 2015-10-14 | 浙江华章科技有限公司 | Papermaking formulations control system |
| JP6626240B2 (en) * | 2014-03-13 | 2019-12-25 | オムロン株式会社 | controller |
| CN105648824A (en) * | 2014-11-11 | 2016-06-08 | 宁夏嘉翔自控技术有限公司 | Control system for speed chains of paper machines |
| CN105652775A (en) * | 2014-11-11 | 2016-06-08 | 宁夏嘉翔自控技术有限公司 | Control adjusting system for load distribution of working speed of paper machine speed chain |
| CN105603800A (en) * | 2014-11-11 | 2016-05-25 | 宁夏嘉翔自控技术有限公司 | An adjusting frequency converter for the working speed of a paper machine speed chain |
| CN105589399A (en) * | 2014-11-11 | 2016-05-18 | 宁夏嘉翔自控技术有限公司 | Control adjustment method of load distribution of work speed of paper machine speed chain |
| CN104698960A (en) * | 2014-12-31 | 2015-06-10 | 南通皋液液压机有限公司 | Data exchange technology for automatic control system of hydraulic press |
| CN105116761A (en) * | 2015-04-22 | 2015-12-02 | 浙江大盛纸业有限公司 | Automatic moving cutting hydro-acupuncture circuit for paper machine |
| CN113608495B (en) * | 2021-08-08 | 2022-09-30 | 上海领霄科技有限公司 | Programmable logic control implementation method |
| CN114237162B (en) * | 2021-11-22 | 2023-11-24 | 浙江华章科技有限公司 | System for graphically setting transmission speed chain |
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| CN114327451B (en) * | 2021-12-14 | 2024-03-08 | 浙江华章科技有限公司 | Method, system, storage medium and transmission system for generating transmission upper computer interface and lower computer program |
| CN114214860A (en) * | 2021-12-14 | 2022-03-22 | 浙江华章科技有限公司 | Method and system for optimizing running parameters of head box |
| CN114625060B (en) * | 2022-03-16 | 2023-10-27 | 浙江华章科技有限公司 | Transmission control system |
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Denomination of invention: Method for controlling flow of transmission control system of paper machine Effective date of registration: 20180802 Granted publication date: 20111012 Pledgee: Bank of Hangzhou Limited by Share Ltd Tongxiang branch Pledgor: Zhejiang Huazhang Technology Co., Ltd. Registration number: 2018330000216 |