CN108336945A - Motor is mutually for control method - Google Patents
Motor is mutually for control method Download PDFInfo
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- CN108336945A CN108336945A CN201810140620.3A CN201810140620A CN108336945A CN 108336945 A CN108336945 A CN 108336945A CN 201810140620 A CN201810140620 A CN 201810140620A CN 108336945 A CN108336945 A CN 108336945A
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- Prior art keywords
- motor
- spare
- working motor
- control method
- working
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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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention discloses a kind of motor mutually for control method.The method includes at least setting procedure, the first determination step, the second determination step and starts standby step.In setting procedure by motor be respectively set as in operating position working motor and in the spare motor of spare space；In the first determination step, judge whether the working motor in the operating position is in operating condition；In the second determination step, judge that the working motor in the operating position whether there is failure；In starting standby step, judge that the working motor is in operating condition and judges that the working motor is deposited in the case of a fault in second determination step in first determination step, the spare motor in the spare space starts automatically to replace the working motor.In accordance with the invention it is possible to realize the standby control of the automatic mutual of motor, the accidental activation of work drive motor is prevented, reliability is improved.
Description
Technical field
The present invention relates to automation fields, particularly, relate to the motor mutually standby control for improving production reliability
Method.
Background technology
In industrial processes, in order to ensure the reliability of production procedure, compare in some or a certain section of flow
Part and parcel (for example, it may be possible to be the power-equipments such as motor, it may be possible to main process line and valve, it is also possible to
The combination of several equipment), two or two sets composition, function components all about the same are often provided with, redundant unit is constituted.This
The characteristics of redundant unit of sample is, their performance, construction, purposes or purpose are all about the same, and primary and secondary on stream
The usually not stringent limitation in position.It that is to say, the performance of any one or a set of equipment disclosure satisfy that flow institute in redundant unit
It is required that all working.Therefore, normal production operation, it is only necessary to which one or a set of redundant unit's access system are worked i.e.
Can, and theoretically can be arbitrarily selected；And another or a set of equipment can occur in original in running order equipment therefore
Hinder or put into operation when being overhauled, vice versa, thus constitutes " spare each other " in technological process (hereinafter referred to as
For " mutually standby ").For example, Fig. 1 shows the mutual standby of main/secondary pipeline common in logistics operation.In Fig. 1, pipeline 150-
SA1-00207-A01J2RC, centrifugal pump P-01A and pipeline 150-SA1-00209-A01J2RC are primary circuits, and pipeline 150-
SA1-00208-A01J2RC, centrifugal pump P-01B and pipeline 150-SA1-00210-A01J2RC constitute secondary circuit.The two is matched
Set completely the same with function, other side's each other is spare in process of production.Wherein, a pair of of equipment as the mutual standby relationship of satisfaction,
Motor in centrifugal pump P-01A and P-01B usually only has one and is worked in access production procedure.According to mutually standby design
Original intention, when a motor of the script in working is shut down because breaking down or being overhauled, Ling Yitai
Motor should start immediately and the motor instead of shutting down puts into operation, to maintain original production to stablize.
In order to realize the mutual standby control of above-mentioned two motors, generally use electromotor control circuit as shown in Figure 2.
In the control circuit, there are two position contacts, respectively " operating position " contact and " spare space " contact by selecting switch SA.
Operating personnel should manually determine that any one in two motors is in " operating position " first, correspondingly, then by another
Selecting switch SA set to " spare space " contact.As shown, there are one the circuits that " spare space " contact can turn on
Time relay KT, and whether the connection of the coil of the time relay connects depending on terminal 17＆19.Terminal 17＆19 is controlled
The normally closed auxiliary contact of contactor KM in the control circuit of the motor in " operating position ", i.e. terminal 47＆49.In this way
The purpose of design is：It is to be in " at work " state or " non-work the motor in " operating position " can be characterized
The signal of work " state is linked into the control loop of the motor in " spare space ", and as startup spare motor
Condition.In the case where motor of the script in " operating position " exits work, then the control of the natural motor is returned
Contactor KM in road is disconnected, then its normally closed auxiliary contact (terminal：47＆49) be restored to power failure state, logic level values by
" 0 " becomes " 1 ".Thus, the terminal 17＆19 in by the control circuit for the motor that the signal control is in " spare space " is closed
Merge turn-on time relay KT.In turn, it in the motor start-up of " spare space ", is given birth to instead of the motor being stopped
Production.As above, " mutually standby " interlocked startup of two motors is completed.
In mutually standby circuit control method as described above, the motor in " spare space " is in by receiving
The cut-off signal of the contactor normally-closed contact of the motor of " operating position " is as entry condition.However, the cut-off signal has
When represent in " operating position " motor needs replaced by spare motor.Because running motor stops,
The signal of the normally-closed contact of contactor KM can no doubt become " 1 ", but if motor is not run at all, which also will be
“1”.So the shape due to that only can not remember or judge motor using the cut-off signal of contacts of contactor as entry condition
There is the possibility for following situation occur in state：Operating personnel are when operating two mutual standby motor, first wherein one
Once the change-over switch SA of motor is placed in " operating position ", but not yet carries out start-up operation, at this time another motor
When change-over switch SA is placed in " spare space ", then the motor can start immediately.Finally, it appears that be spare motor root
It is general that normal spare startup is carried out according to working motor not running.Such startup does not meet working specification completely.In order to
Evade this problem, need the setting for being in the enterprising pedestrian of operation order, that is, must provide to open by the conversion of spare motor
Before pass SA is placed in " spare space ", it is necessary to first start up working motor.This can make operation become complicated, and be easy out
It is wrong.
In addition, making the motor parking of operation or the DCS (dispersions in a distant place when operating personnel carry out normal shut-down operation
Formula control system DCS) system chain parking when, the signal due to the contact using KM as startup spare motor is then spare
Motor mistakenly automatic in the case can start.This is also a defect of conventional hardwire control circuit.To avoid this
It the occurrence of kind, needs to be sent to spare motor after the various fault status signals of working equipment are connected with KM contact point signals
Control circuit in so that hard-wired circuitry becomes complicated.
In addition, because in the control method of mutually standby circuit as described above, mutually standby motor is two-by-two in correspondence with each other
, thus when have 2 or more motor it is spare each other when, this corresponding interlocked startup mode will cause complicated wiring.
For example, opening 1 in case of by 2, any motor is required for providing contactor signal to other two motors, standby
The parallel signal of the contactor contact of other two motors is received with motor, wiring becomes complicated.When all running for two, connect
Tentaculum signal disconnects, and spare motor will not put into operation, when wherein a work drive motor parking, contactor signal in parallel have one
A closure, spare motor starting-up later time are connected, spare motor put into operation (two work drive motors should be started first when operation,
The selecting switch of stand-by equipment is set to spare space again).But exists and only open one when process unit is in underrun
The operating mode that platform motor can be met the requirements, and at this point, since design is to open 1 standby progress wiring by 2, there is a work drive motor
It does not open, the contactor signal that this motor is provided on spare motor is closed (when spare motor sets selecting switch
When to spare space, the parallel contactor signal of the starting-up later time of spare motor can be connected), it is then used to start stand-by equipment
Circuit is connected, and stand-by equipment will start.Such case does not allow in production operation.In order to solve this problem, firmly
It needs the signal by the selecting switch of every equipment to be introduced into other two equipment in connection circuit to go to solve the problems, such as this,
And selecting switch will be with centre position (work disconnects, spare three positions).The wiring of circuit diagram will be more complicated.
If by various fault-signals and it is much more as described above open a standby situation all it is considered that if between individual device it is defeated
The signal for entering output can be very more, but the signal points of every equipment are limited.Thus, open one it is standby in the case of, this
A little signals also need to be extended contact by intermediate relay.To avoid the above situation, the side of " specified spare " is often used
Formula.That is, a certain motor in multiple motors is appointed as spare motor in order to reduce mutually standby complexity.This
Sample there is no need to wiring and provides control signal between other motors except spare motor.Every work drive motor is selected
The operating position (on-state) of switch and the normal opened contact series connection of contactor, it is then that each signal is in parallel, and be sent to standby
With in motor starting-up later time, so that it may realize specified spare startup control.But under this control method, due to being selected
The limitation for selecting switch, when certain working motor selecting switch selection is in open position (contact is in off-state), this sets
Standby not open, this circuit is also to disconnect.Therefore, be not in it is above-mentioned have a work drive motor do not hold spare motor also understand from
Dynamic the case where driving.In this way, although complexity is greatly simplified, following problem is also brought：If C motor move back for some reason
Go out (such as maintenance), running A, B motor actually will be not present any stand-by facility, and reliability substantially reduces.
Invention content
In view of the above problems, the purpose of the present invention is can improve the motor of production reliability mutually for control method.
According to an embodiment of the invention, a kind of motor is provided mutually for control method, which is characterized in that the controlling party
Method includes the following steps：
Setting procedure：Motor is respectively set as to be in the working motor of operating position and in the standby of spare space
Use motor；
First determination step：Judge whether the working motor in the operating position is in operating condition；
Second determination step：Judge that the working motor in the operating position whether there is failure；
Start standby step：Judge in first determination step working motor be in operating condition and
Judge that the working motor is deposited in the case of a fault in second determination step, it is described standby in the spare space
Started automatically with motor to replace the working motor.
Preferably, after the setting procedure, the fortune of the working motor is remembered using flip and flop generator
Turn state or non-operating state.
Preferably, in first determination step, the work is judged based on the output valve of the flip and flop generator
Make whether motor is in the operating condition.
The control method can also include following reset process：The work electricity is judged in second determination step
Motivation is deposited after the failure, and pair flip and flop generator corresponding with the working motor of failure resets, and makes
The output valve for obtaining the flip and flop generator is always to indicate that the work is electronic before the setting procedure next time
Machine is in the output valve of the non-operating state.
Preferably, the quantity of the working motor is two or more.
Motor according to the present invention is not mutually that contactor status signal is used alone as standby electricity for control method
Machine enabling signal, but resultant fault signal (for example, contactor state and fault-signal) is used to be ordered as startup, therefore energy
Contactor state change caused by non-faulting (for example, state normal variation etc. before and after manual operation, startup) is enough avoided to trigger
Spare motor error starting.
Motor according to the present invention mutually for control method, is capable of the operating status of memory motor and the event by motor
Hinder entry condition of the operating status of signal and working motor as spare motor, it is ensured that only working motor for some reason
Just start spare motor in the case of exiting work, to improve production reliability.
Motor according to the present invention is mutually for control method, it can be ensured that has occurred and that the shape for the motor that failure is substituted
State will not become the entry condition of other spare motors, further improve production reliability.
Description of the drawings
Fig. 1 is the example for illustrating mutually standby device in the prior art.
Fig. 2 is the example for illustrating mutually standby Motor Control circuit in the prior art.
Fig. 3 is to illustrate motor according to the present invention mutually for the flow chart of control method.
Fig. 4 is to illustrate motor according to the present invention mutually for the logic chart of control method.
Specific implementation mode
Motor according to the present invention is described in detail mutually for control method next, with reference to attached drawing 3 and Fig. 4.Fig. 4 is diagram
Motor according to the present invention is mutually for the logic chart of control method.When in system there are when multiple motors, any electricity
Motivation is all suitable for this logic chart.
As shown in figure 3, in motor according to the present invention mutually in control method, first by motor at step S01
It is respectively set as " operating position " and " spare space ".Motor in " operating position " will be as daily working motor
The normal production running of input, and the motor of " spare space " is in by the spare motor as working motor.It is daily
When operation, start working motor at step S02.On the other hand, when needing to carry out working motor and spare motor
Mutually when standby control, judge whether working motor has been started up in operating condition at step S03 first.For example, can lead to
It crosses and stores the state of motor using the logic device with memory function such as trigger, and based on the electricity stored in trigger
Motivational state come judge working motor whether be in operating condition.Here it is possible to which the basic of 1 binary signal will be stored
Element circuit is referred to as trigger.RS flip and flop generators can be used for example.Shown in table 1 be made of nor gate it is basic
The property list of RS flip and flop generators.By it is found that rest-set flip-flop is under specific input condition, electricity can be remembered respectively in table 1
1 state (for example, corresponding to operating condition of working motor) constant or 0 state on road is (for example, corresponding to working motor
Non-operating state) it is constant.Therefore, the R of rest-set flip-flopDEnd is referred to as reset terminal or sets to 0 input terminal, SDEnd be referred to as set end or
Set 1 input terminal.
| SD | RD | Qn | Qn+1 |
| 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 1 |
| 1 | 0 | 0 | 1 |
| 1 | 0 | 1 | 1 |
| 0 | 1 | 0 | 0 |
| 0 | 1 | 1 | 0 |
| 1 | 1 | 0 | 0 (state is indefinite) |
| 1 | 1 | 1 | 0 (state is indefinite) |
Table 1
Return to Fig. 3, if being determined as "No" at step S03, control flow goes to step S02, with needs when
It waits and starts working motor.If being determined as "Yes" at step S03, control flow advances to step S04, judges work electricity
Whether motivation breaks down.In general, receiving the fault-signal sent out by working motor or by the control of working motor
In the case of switching the trip signal sent out, judgement working motor breaks down, and needs to be replaced.Sentence when in step S04
In the case of determining working motor failure, step S05 is advanced to.In step S05, output starts the finger of spare motor
Enable signal.If judging that working motor does not break down in step S04, step is back to step S03.
Motor according to the present invention is described in detail mutually for the control logic of control method and controlling party below with reference to Fig. 4
Method.First, such as the dotted line frame in Fig. 4 1. and 3. as shown in, according to requirement spare each other, each motor can be artificial
Ground is set as " operating position " or " spare space ", this depends on the live actual set of operating personnel.
The dotted line frame in Fig. 4 1. as shown in, if a motor is determined to be in " operating position ", and this is electronic
Machine receives startup order, then the motor start-up exports, and completes the start-up operation of motor.Then, the motor conduct
" work " motor is operated.
In order to which the operating status to running working motor is remembered, by the state of running working motor
It is sent into the ports S (setting 1 input terminal) of flip and flop generator.At this point, the output port of flip and flop generator becomes " 1 ", and it is double
Steady state trigger can store the state of working motor.
If running working motor because non-artificial operation factor (for example, engine failure or protection open
Close tripping etc.) and shut down, then it is considered as the non-normal stop of motor.In the case, by motor fault signal
Or any one of the signal of motor controling switch tripping is used as the entry condition of spare motor.As dotted line frame is 2. in Fig. 4
Shown in, only when the output of the above-mentioned fault-signal of working motor and flip and flop generator meet simultaneously predetermined condition (
As illustrated in the drawing in the case of the two composition logical "and", the two is " 1 " simultaneously) when, it can just generate startup spare motor
Output order.It that is to say, only start in working motor, to make the output of flip and flop generator become the premise of " 1 "
Under, the fault-signal exported when motor breaks down could trigger the enabled instruction of spare motor.In this way, avoiding work
Make motor not operated the case where spare motor is by error starting, improves the safety and reliability of production.
The instruction for starting spare motor is once sent out, and will be sent to the control of that spare motor in " spare space "
Circuit processed.The dotted line frame in Fig. 4 3. as shown in, since spare motor has been set to " spare space ", once it connects
Spare motor enabled instruction is received, then the spare motor can start and put into operation.The operation and dotted line frame 1. in
Working motor start-up operation be start motor normal process, the two in the case where meeting respective operating condition,
Motor start-up can be made.In other words, as shown in the figure, the two have passed through the processing of logical "or".Unlike, work behaviour
It is to be completed by being in the motor of " operating position ", and it is by being in the electronic of " spare space " to open standby operation sequence as program
What machine was completed.
In addition, as in Fig. 4 4. shown in, exited because of failure the motor of running after repair or processing by grasping
It is resetted as personnel.At this point, the value of the R terminals of flip and flop generator becomes " 1 ".As shown in Table 1, in the case, bistable
The output of state trigger will be always " 0 ".This means that the motor after fault restoration has lost the ground of working motor
Position, any state can not all play the role of starting other motor.At this moment, spare motor originally has been upon actuation
Through the working motor for becoming normal operation.If it is desired that the motor after debugging plays the function of spare motor,
Switch SA should be converted by operating personnel scene to be placed in " spare space ".
It is spare each other for 2 or more N platform motor, still it can be come using control method of the present invention real
It is existing.In this operation, it should be designed to send and receive command signal mutually between N platform motor.Specifically, if not
Certain 1 motor is limited as dedicated " spare " equipment, then can be considered both can be randomly normal for all motor in range
Operation, and can randomly be considered as spare, it is only necessary to ensure that an at least motor is set in " spare in system
Position ".If any one in more working motors in system breaks down, this motor is to remaining N-
1 motor sends the command signal of " starting spare ".Therefore, every motor in system may receive remaining N-1 platform
The command signal for " starting spare " that motor is sent.Motor A in " spare space " is receiving such instruction
After signal, is started immediately by " spare " state, put into operation instead of the work drive motor of failure.If motor A is next time
" operating position " is set in operation, and another motor B is set to " spare space ", then after motor A starts
State can also be remembered by flip and flop generator, and still have Fig. 4 dotted line frames 1., 2. and 4. in institute it is functional.Thus,
When motor A failures, N-1 " starting spare " command signals can be sent out to other motor, to start newly spare electronic
Machine B.
It, can be with when technique productions device is in underrun in addition, this design spare each other with memory function
Any amount work drive motor being set as needed in 1 to N-1 platforms.In either event, as long as work electricity
Machine has a failure, will start spare motor.Without as in the prior art, only starting N-1 platforms work electricity
It could implement after machine spare.This is because according to the present invention, the work drive motor being not turned on drives to remember output due to not having,
The instruction of spare motor will not be sent out open.
Although of the invention above with reference to the accompanying drawings of motor according to the present invention mutually for control method
It is without being limited thereto, and it will be understood by those skilled in the art that in the spirit or scope limited without departing from following claims of the present invention
In the case of, various changes, combination, secondary combination and modification can be made.
Claims (5)
1. a kind of motor is mutually for control method, which is characterized in that the control method includes the following steps：
Setting procedure：Motor is respectively set as to be in the working motor of operating position and in the standby electricity of spare space
Motivation；
First determination step：Judge whether the working motor in the operating position is in operating condition；
Second determination step：Judge that the working motor in the operating position whether there is failure；
Start standby step：Judge that the working motor is in operating condition and described in first determination step
Judge that the working motor is deposited in the case of a fault in second determination step, is in the standby electricity of the spare space
Motivation starts automatically to replace the working motor.
2. control method according to claim 1, which is characterized in that after the setting procedure, touched using bistable state
Hair device remembers the operating condition or non-operating state of the working motor.
3. control method according to claim 2, which is characterized in that in first determination step, based on described double
The output valve of steady state trigger come judge the working motor whether be in the operating condition.
4. control method according to claim 3, which is characterized in that the control method further includes following reset process：
Judge that the working motor is deposited after the failure in second determination step, it is pair electronic with the work of failure
The corresponding flip and flop generator of machine is resetted so that the output valve of the flip and flop generator is in institute next time
It is always to indicate that the working motor is in the output valve of the non-operating state before stating setting procedure.
5. control method according to any one of claim 1 to 4, which is characterized in that the quantity of the working motor
It is two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140620.3A CN108336945A (en) | 2018-02-11 | 2018-02-11 | Motor is mutually for control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140620.3A CN108336945A (en) | 2018-02-11 | 2018-02-11 | Motor is mutually for control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108336945A true CN108336945A (en) | 2018-07-27 |
Family
ID=62929271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810140620.3A Pending CN108336945A (en) | 2018-02-11 | 2018-02-11 | Motor is mutually for control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108336945A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112967478A (en) * | 2021-02-01 | 2021-06-15 | 绍兴隆芙力智能科技发展有限公司 | Equipment expected maintenance early warning system and early warning device thereof |
| CN114558331A (en) * | 2022-01-06 | 2022-05-31 | 浙江佳合文化科技股份有限公司 | Redundant drive apparatus and control method thereof |
| CN114645628A (en) * | 2022-03-22 | 2022-06-21 | 北京长征天民高科技有限公司 | Redundant lifting device |
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| CN103352837A (en) * | 2013-07-05 | 2013-10-16 | 中石化宁波工程有限公司 | Stand-by pump automatically-starting control logic device with two pumps mutually serving as stand-by pumps |
| CN106685311A (en) * | 2016-12-27 | 2017-05-17 | 中科合成油工程股份有限公司 | Low-tension motor general control circuit and method based on programmable protector |
| CN106968874A (en) * | 2017-05-31 | 2017-07-21 | 国家电网公司 | Generator motor hydraulic oil jacking system control method |
| CN107299894A (en) * | 2017-08-10 | 2017-10-27 | 中石化宁波工程有限公司 | The many stand-by pump self-starting logic control circuits selected based on priority |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352837A (en) * | 2013-07-05 | 2013-10-16 | 中石化宁波工程有限公司 | Stand-by pump automatically-starting control logic device with two pumps mutually serving as stand-by pumps |
| CN106685311A (en) * | 2016-12-27 | 2017-05-17 | 中科合成油工程股份有限公司 | Low-tension motor general control circuit and method based on programmable protector |
| CN106968874A (en) * | 2017-05-31 | 2017-07-21 | 国家电网公司 | Generator motor hydraulic oil jacking system control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112967478A (en) * | 2021-02-01 | 2021-06-15 | 绍兴隆芙力智能科技发展有限公司 | Equipment expected maintenance early warning system and early warning device thereof |
| CN114558331A (en) * | 2022-01-06 | 2022-05-31 | 浙江佳合文化科技股份有限公司 | Redundant drive apparatus and control method thereof |
| CN114645628A (en) * | 2022-03-22 | 2022-06-21 | 北京长征天民高科技有限公司 | Redundant lifting device |
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Address after: 101407 Zhongyuan synthetic oil research and development base, No. 1 south two street, C District, Yan Qi development zone, Huairou, Beijing Applicant after: SYNEFUELS CHINA Inc. Address before: 101407 Zhongyuan synthetic oil research and development base, No. 1 south two street, C District, Yan Qi development zone, Huairou, Beijing Applicant before: SYNFUELS CHINA |
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Application publication date: 20180727 |
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