CN105673540B - The rotation speed regulating method of fan, the adjustment of rotational speed system of device and fan - Google Patents
The rotation speed regulating method of fan, the adjustment of rotational speed system of device and fan Download PDFInfo
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- CN105673540B CN105673540B CN201410665599.0A CN201410665599A CN105673540B CN 105673540 B CN105673540 B CN 105673540B CN 201410665599 A CN201410665599 A CN 201410665599A CN 105673540 B CN105673540 B CN 105673540B
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- 239000003814 drug Substances 0.000 claims description 8
- 229940079593 drug Drugs 0.000 claims description 8
- 230000001900 immune effect Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 8
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
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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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
-
- 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
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/14—Arrangements for controlling speed or speed and torque
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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feedback Control In General (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses the adjustment of rotational speed systems of the rotation speed regulating method of fan, device and fan, wherein, the system includes governor circuit and fan drive circuit, wherein, governor circuit, it is of coupled connections with fan drive circuit, the control signal of the rotating speed for generating adjustment fan according to the current rotating speed of fan and the difference of desired speed；Fan drive circuit, for adjusting the rotating speed of fan within the scope of the allowable error of desired speed according to control signal.It solves the problems, such as in the related technology the rotating speed of fan board cannot be adjusted flexibly through the invention, and then realizes and fan board rotating speed is adjusted flexibly, improve the efficiency of adjustment fan board rotating speed.
Description
Technical field
The present invention relates to the communications fields, in particular to the rotating speed tune of the rotation speed regulating method of fan, device and fan
Whole system.
Background technology
Fan board is one piece of important veneer in communication equipment, the heat dissipation and its service board performance to communication equipment
Stability has great importance.Webmaster controls rotation speed of the fan, can be divided into and manually control and automatically control both of which,
Wherein automatic control scheme is substantially obtained the temperature of other slot position veneers in this subrack by veneer by agent, is then carried out
Control.However the use of the control method of current fan board rotating speed is not close-loop control mode, the duty ratio of level is one
It is changeless in a grade.When webmaster issues a speed regulating control instruction, the rotating speed of fan board is needed through several mistakes
Degree grade gets to specified rotating speed, and real-time is bad, and the speed regulation process of fan board easily causes oscillation.
Moreover, the control characteristic of modern smart machine is nonlinear mostly, and use the biography of linear control method design
Proportional-integral derivative controller (proportion, integration, differentiation, referred to as PID) unite often
It is difficult to meet the nonlinear requirements of intelligence instrument control, is unfavorable for real-time intelligentized control method.
For the problem that in the related technology, the rotating speed of fan board cannot be adjusted flexibly, do not propose also effectively to solve
Certainly scheme.
Invention content
The present invention provides the adjustment of rotational speed systems of a kind of rotation speed regulating method of fan, device and fan, at least to solve
The problem of rotating speed of fan board cannot being certainly adjusted flexibly in the related technology.
According to an aspect of the invention, there is provided a kind of adjustment of rotational speed system of fan, including：Governor circuit and fan
Driving circuit, wherein the governor circuit is of coupled connections with the fan drive circuit, for the current rotating speed according to fan
The control signal for the rotating speed for adjusting the fan is generated with the difference of desired speed；The fan drive circuit, for according to institute
It states control signal and adjusts the rotating speed of the fan within the scope of the allowable error of the desired speed.
Further, the governor circuit includes：Velocity-loop control circuitry and current loop control circuit, wherein the speed
Loop control circuit is spent, current compensation signal is generated for obtaining the difference, and according to the difference；The current loop control electricity
Road generates the control for obtaining the current value for flowing through the fan, and according to the current compensation signal and the current value
Signal processed.
Further, the velocity-loop control circuitry is immunological drug circuit, which is used for
The difference is converted into fuzzy control quantity, and the fuzzy control quantity is input to institute in the form of the current compensation signal
State current loop control circuit.
Further, the L2 automation system includes：Fuzzy controller and linear controller, wherein described fuzzy
Controller, for generating the first controlled quentity controlled variable according to the difference；The linear controller, for linearly being transported to the difference
It calculates, to the second controlled quentity controlled variable；The wherein described fuzzy control quantity is the sum of first controlled quentity controlled variable and second controlled quentity controlled variable.
Further, the fuzzy controller, the deviation for obtaining prearranged signals and feedback signal according to the difference
The change rate exact value ec of exact value e and deviation, wherein the prearranged signals is the corresponding signal of the desired speed, described
Feedback signal is the corresponding signal of the current rotating speed；And by the e and the ec be multiplied by respectively corresponding quantizing factor k1,
K2 finds out fuzzy quantity E, Ec after round numbers；According to the E and the Ec, fuzzy quantity U is obtained by look-up table；Gained U values are multiplied
With scale factor k3, first controlled quentity controlled variable is obtained.
Further, further include：Pulse modulated circuit connects with the governor circuit and the fan drive circuit respectively
It connects, is exported to institute for receiving the control signal, and by the pulse width modulation (PWM) signal generated according to the control signal
State fan drive circuit.
According to another aspect of the present invention, a kind of rotation speed regulating method of fan is additionally provided, including：Obtain fan
Current rotating speed；Compare the current rotating speed and desired speed, obtains the current rotating speed and the difference of desired speed；According to described
Difference adjusts the rotating speed of the fan within the scope of the allowable error of the desired speed.
Further, the rotating speed of the fan is adjusted according to the difference within the scope of the allowable error of the desired speed
Including：The rotating speed of the fan is adjusted according to the feedback current of the difference and the fan.
According to another aspect of the present invention, a kind of speed regulator of fan is additionally provided, including：Acquisition module,
Current rotating speed for obtaining fan；Comparison module is used for the current rotating speed and desired speed, obtains described working as forward
The difference of speed and desired speed；Module is adjusted, for adjusting the rotating speed of the fan according to the difference in the desired speed
Allowable error within the scope of.
Further, the adjustment module is additionally operable to according to described in the adjustment of the feedback current of the difference and the fan
The rotating speed of fan.
Through the invention, using governor circuit and fan drive circuit, wherein governor circuit, with fan drive circuit coupling
Connection is closed, the control signal of the rotating speed for generating adjustment fan according to the current rotating speed of fan and the difference of desired speed；Wind
Driving circuit is fanned, for adjusting the rotating speed of fan within the scope of the allowable error of desired speed according to control signal.Solves phase
The problem of rotating speed of fan board cannot being adjusted flexibly in the technology of pass, and then realize the flexible tune to fan board rotating speed
It is whole, improve the efficiency of adjustment fan board rotating speed.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the structure chart of the adjustment of rotational speed system of fan according to the ... of the embodiment of the present invention；
Fig. 2 is the structure chart one of the adjustment of rotational speed system of fan according to the ... of the embodiment of the present invention；
Fig. 3 is the structure chart two of the adjustment of rotational speed system of fan according to the ... of the embodiment of the present invention；
Fig. 4 is the structure chart three of the adjustment of rotational speed system of fan according to the ... of the embodiment of the present invention；
Fig. 5 is the flow chart of the rotation speed regulating method of fan according to the ... of the embodiment of the present invention；
Fig. 6 is the structure diagram of the speed regulator of fan according to the ... of the embodiment of the present invention；
Fig. 7 is Fuzzy PI Controller system block diagram according to the ... of the embodiment of the present invention；
Fig. 8 is the structure chart of L2 automation system according to the ... of the embodiment of the present invention；
Fig. 9 is direct current motor drive circuit figure according to the ... of the embodiment of the present invention；
Figure 10 is control system main program flow chart according to the ... of the embodiment of the present invention；
Figure 11 is numerical control system closed-loop control flow chart according to the ... of the embodiment of the present invention.
Specific implementation mode
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
A kind of adjustment of rotational speed system of fan is provided in the present embodiment, and Fig. 1 is fan according to the ... of the embodiment of the present invention
Adjustment of rotational speed system structure chart, as shown in Figure 1, the system includes：Governor circuit 12 and fan drive circuit 14, wherein
Governor circuit 12 is of coupled connections with fan drive circuit 14, for being produced according to the current rotating speed of fan and the difference of desired speed
The control signal of the rotating speed of raw adjustment fan；Fan drive circuit 14, for adjusting the rotating speed of fan pre- according to control signal
Determine within the scope of the allowable error of rotating speed.
By the adjustment of rotational speed system of said fans, governor circuit 12 is according to the current rotating speed of fan and the difference of desired speed
Value generates the control signal of the rotating speed of adjustment fan, and fan drive circuit 14 receives the control signal, so as to adjust turning for fan
Speed is within the scope of the allowable error of desired speed.It is flexible system solves the problem that cannot be carried out in the related technology to the rotating speed of fan board
The problem of adjustment, and then realize and fan board rotating speed is adjusted flexibly, improve the efficiency of adjustment fan board rotating speed.
Fig. 2 is the structure chart one of the adjustment of rotational speed system of fan according to the ... of the embodiment of the present invention, as shown in Fig. 2, master control is electric
Road 12 includes：Velocity-loop control circuitry 122 and current loop control circuit 124, wherein velocity-loop control circuitry 122, for obtaining
Difference, and current compensation signal is generated according to difference；Current loop control circuit 124, for obtaining the current value for flowing through fan, and
Control signal is generated according to current compensation signal and current value.
Optionally, velocity-loop control circuitry 122 can be immunological drug circuit 126, immunological drug circuit 126
For difference to be converted to fuzzy control quantity, and fuzzy control quantity is input to current loop control in the form of current compensation signal
Circuit 124.
Fig. 3 is the structure chart two of the adjustment of rotational speed system of fan according to the ... of the embodiment of the present invention, as shown in figure 3, compound die
Fuzzy controllers 126 include：Fuzzy controller 1262 and linear controller 1264, wherein fuzzy controller 1262, for according to difference
Value generates the first controlled quentity controlled variable；Linear controller 1264 obtains the second controlled quentity controlled variable for carrying out linear operation to difference；Wherein mould
It is the sum of the first controlled quentity controlled variable and second controlled quentity controlled variable to paste controlled quentity controlled variable.
Optionally, fuzzy controller 1262, for obtaining prearranged signals and the deviation exact value e of feedback signal according to difference
With the change rate exact value ec of deviation, wherein the prearranged signals is the corresponding signal of the desired speed, which is to deserve
The corresponding signal of preceding rotating speed；And the e and the ec are multiplied by corresponding quantizing factor k1, k2 respectively, it is found out after round numbers fuzzy
Measure E, Ec；According to the E and the Ec, fuzzy quantity U is obtained by look-up table；Gained U values are multiplied by scale factor k3, obtain this first
Controlled quentity controlled variable.
Fig. 4 is the structure chart three of the adjustment of rotational speed system of fan according to the ... of the embodiment of the present invention, as shown in figure 4, the system
Further include：Pulse modulated circuit 16 connect 14 with governor circuit 12 and fan drive circuit respectively, for receiving control signal,
And the pulse width modulation (PWM) signal generated according to control signal is exported to fan drive circuit 14.
A kind of rotation speed regulating method of fan is provided in the present embodiment, and Fig. 5 is fan according to the ... of the embodiment of the present invention
Rotation speed regulating method flow chart, as shown in figure 5, the flow includes the following steps：
Step S502 obtains the current rotating speed of fan；
Step S504, compares current rotating speed and desired speed, obtains current rotating speed and the difference of desired speed；
Step S506 adjusts the rotating speed of fan within the scope of the allowable error of desired speed according to difference.
Through the above steps, fan can carry out the adjustment of rotation speed of the fan according to current rotating speed and the difference of desired speed,
It solves the problems, such as in the related technology the rotating speed of fan board cannot be adjusted flexibly, and then realizes to fan board rotating speed
It is adjusted flexibly, improves the efficiency of adjustment fan board rotating speed.
In one alternate embodiment, the rotating speed of fan is adjusted according to the feedback current of difference and fan.
Fig. 6 is the structure diagram of the speed regulator of fan according to the ... of the embodiment of the present invention, as shown in fig. 6, the device
Including：Acquisition module 62, the current rotating speed for obtaining fan；Comparison module 64 turns for comparing the current rotating speed with predetermined
Speed obtains the current rotating speed and the difference of desired speed；Module 66 is adjusted, the rotating speed for adjusting the fan according to the difference exists
Within the scope of the allowable error of the desired speed.
Optionally, adjustment module 66 is additionally operable to adjust the rotating speed of fan according to the feedback current of difference and fan.
In order to solve the above-mentioned technical problem, overcome existing fan board motor when rotating speed changes, Control platform with
Decline deficiency, to make fan board motor have good starting characteristic and accelerating performance, keep it in setting
Stable rotation under rotating speed, the further noise for reducing fan board, improves the stability and service life of fan board.This optional reality
It applies example and provides a kind of fuzzy control method and device of fan board, including the following contents：
(a) device includes fan electromotor governor circuit (being equivalent to above-mentioned governor circuit 12), fan electromotor driving circuit
(being equivalent to said fans driving circuit 14), rotating speed display circuit.Good in interactive function, fan are realized by upper computer software
Rotating speed can real-time display to observe control process and control effect；
(b) governor circuit calculates speed error value by comparing setting speed value and speed feedback value, and output difference accounts for
The pulse width of empty ratio modulates (Pulse Width Modulation, referred to as PWM) signal, automatically adjusts turning for fan electromotor
Speed makes the stabilization of speed of fan electromotor in initial set value；
(c) FUZZY ALGORITHMS FOR CONTROL is introduced in the adjusting of fan electromotor speed, devised for fan board electric machine speed regulation
Immunological drug device, greatly increase control performance.To allow the rotating speed of motor within the limits prescribed from
It is dynamic to adjust, keep stabilization of speed.
Above-mentioned alternative embodiment also has the characteristics that：By the adjusting of Fuzzy proportional-integral controller PI, motor opens
Dynamic speed is fast, can tracking velocity initial set value in a short period of time.
The implementation of this alternative embodiment is described in further detail below in conjunction with the accompanying drawings：
Fig. 7 is Fuzzy PI Controller system block diagram according to the ... of the embodiment of the present invention, as shown in fig. 7, this alternative embodiment
System uses double-closed-loop control scheme：Outer shroud is speed ring, is adjusted using fuzzyPI；Inner ring is electric current loop, using normal
Advise PI adjusting methods.The input of controller is given d. c. voltage signal, pulse signal, simulation current feedback signal, output
For DC voltage control signal, driving executing agency is the motor of fan.
Wherein, speed ring is adjusted rotating speed according to fan motor rotational speed error, enables a system to tenacious tracking speed
Setting value.The output of speed control is as the given of internal current ring.Inner ring current controller makes electric current in speed adjusting
Given rotating speed is followed to change, when starting obtains maximum permission electric current, and when overload limits current maxima, and entire electric current adjusted
The change procedure of journey i.e. pulse-width modulation circuit (PWM) output signal.By adjusting the duty cycle adjustment winding voltage of PWM wave
Average value, and then the size of winding current can be limited and adjust indirectly, realize the adjusting of rotating speed.Due to needing constantly to judge fan
The size of the speed of service of motor, therefore compound Fuzzy PI Controller is given signal by orthogonal encoder, as feedback signal.Electricity
Flowing amplitude limiter circuit improves the stationarity of motor torque and ensures the safety of controller and motor.
Fig. 8 is the structure chart of L2 automation system according to the ... of the embodiment of the present invention, is immunological drug as shown in Figure 8
The design process of device eliminates the error of disturbed belt to improve the static accuracy of system, increases proportional integration link u2=
K/s is combined linear controller and fuzzy controller to form L2 automation system, the output of L2 automation system be than
The sum of example integral element and fuzzy controller output.
The current rotating speed of motor can be measured by code-disc interface, it is compared with initial setting speed value, is obtained
Go out the deviation exact value e of the Setting signal and feedback signal in system and the change rate exact value ec of deviation as fuzzy system
Input quantity.In real-time control, by the deviation of actual measurement (rotary speed detecting signal and Setting signal relatively after output), change of error
Rate is multiplied by corresponding quantizing factor k1, k2 respectively, and fuzzy quantity E, Ec is found out after round numbers, according to E and Ec values, looks into fuzzy control and determines
Plan table finds out fuzzy quantity U, in look-up table, only need to execute quantization and the two steps of tabling look-up to input quantity, you can controlled
Value, it is simple and convenient, there is fabulous real-time.Gained U values are multiplied by scale factor k3 again, show that basic fuzzy control quantity is accurate
Value u1.Ratio is carried out by the deviation of speed and integral operation finds out controlled quentity controlled variable u2, so composite controller exports u=u1+u2, so
U is sent to motor-drive circuit to which driving fan motor rotates after current regulator afterwards.
Fan board motor-drive circuit is mainly the driving for realizing fan electromotor, it is made to realize certain speed just as required
Turn and inverts.Fig. 9 is direct current motor drive circuit figure according to the ... of the embodiment of the present invention, builds physical circuit as shown in figure 9, motor
Driving circuit be made of two panels driving chip IR2110 and four MOSFET IRF540.Four IRF540 constitute full-bridge driving
Circuit.Wherein, C24 and C25 is bootstrap capacitor, and D6 and D11 are bootstrap diode, and C26 and C27 are filter capacitor.Work as U4
(IR2110) when HIN pins are high level, and assume that bootstrap capacitor C24 has been charged to enough electricity during Q1 is turned off
It presses (its voltage is approximately equal to+15V), the insulated gate field-effect pipe VM1 conductings of pin 7 (HO) and pin 6 (VB) inside, pin
Field-effect tube VM2 between 7 (HO) and pin 5 (VS) is closed, and the voltage of VC24 is added between the gate pole of Q1 and emitter, C24
By VM1, the capacitance Cgc1 electric discharges between R23 and Q1 gate poles and grid, Cgc1 is electrically charged, and Q1 conductings, VC24 can be waited at this time
Effect is a voltage source.Meanwhile the HIN pins of U5 (IR2110) are low level, the field between pin 7 (HO) and pin 5 (VS)
The VM2 conductings of effect pipe, the field-effect tube VM1 between pin 7 (HO) and pin 6 (VB) are closed, and the gate charge of Q2 is through R29, VM2
It discharges rapidly, Q2 shutdowns.And the LIN pins of U5 are high level at this time, Q4 is connected, and+15V gives C25 to charge through VD11, Q4, rapidly
Energy is supplemented for C25.Q1 and Q4 are simultaneously turned on, and output end voltage makes motor is realized to rotate forward, and when Q2 and Q3 is connected, motor is real
Now invert.Rational setting dead time, avoids bridge arm direct pass, short circuit occurs, MOSFET is breakdown.R24、R25、R26、
The problem of R27 is divider resistance, is avoided because circuital current is excessive, and MOSFET is overheated.
The main program flow chart of this alternative embodiment is specifically described below, Figure 10 is according to the ... of the embodiment of the present invention
Control system main program flow chart, as shown in Figure 10, process flow includes the following steps：The main program of controller is completed initial
Change, checks whether to need to enable, the program of setting rotating speed is entered if enabled, after setting completed for rotating speed, then into scanning frequency
Degree adjusts subprogram, and real-time display fan board motor speed.
Figure 11 is numerical control system closed-loop control flow chart according to the ... of the embodiment of the present invention, medium velocity regulator program
Flow chart, as shown in figure 11, controller initialize MCPWM QEI and port, check whether to have carried out speed setting, if do not had
Setting speed then first carries out rotating speed setting and reads current fan motor rotational speed if having been completed the setting of rotation speed of the fan,
Setting value and fan motor rotational speed value are sent into L2 automation system, it is real by the judgement and adjusting to speed error value
Show tracking of the fan motor rotational speed to initial velocity setting value, and finally generates pwm signal to which driving fan motor makes it
Velocity-stabilization is in speed initial set value.
In conclusion solving cannot ask what the rotating speed of fan board was adjusted flexibly through the invention in the related technology
Topic, and then realize and fan board rotating speed is adjusted flexibly, improve the efficiency of adjustment fan board rotating speed.
In another embodiment, a kind of software is additionally provided, the software is for executing above-described embodiment and preferred reality
Apply the technical solution described in mode.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned software is stored in the storage medium, it should
Storage medium includes but not limited to：CD, floppy disk, hard disk, scratch pad memory etc..
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be with different from shown in sequence execution herein
The step of going out or describing, either they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of adjustment of rotational speed system of fan, which is characterized in that including：Governor circuit and fan drive circuit, wherein
The governor circuit is of coupled connections with the fan drive circuit, for the current rotating speed and desired speed according to fan
Difference generate the control signal of the rotating speed for adjusting the fan；
The fan drive circuit, rotating speed the permitting in the desired speed for adjusting the fan according to the control signal
Perhaps in error range；
The governor circuit includes：Velocity-loop control circuitry and current loop control circuit, wherein
The velocity-loop control circuitry generates current compensation signal for obtaining the difference, and according to the difference；
The current loop control circuit, for obtaining the current value for flowing through the fan, and according to the current compensation signal and
The current value generates the control signal.
2. system according to claim 1, which is characterized in that
The velocity-loop control circuitry is immunological drug circuit, and the immunological drug circuit is for converting the difference
For fuzzy control quantity, and the fuzzy control quantity is input to the current loop control electricity in the form of the current compensation signal
Road.
3. system according to claim 2, which is characterized in that the immunological drug circuit includes：Fuzzy controller
And linear controller, wherein
The fuzzy controller, for generating the first controlled quentity controlled variable according to the difference；
The linear controller obtains the second controlled quentity controlled variable for carrying out linear operation to the difference；
The wherein described fuzzy control quantity is the sum of first controlled quentity controlled variable and second controlled quentity controlled variable.
4. system according to claim 3, which is characterized in that the fuzzy controller, for being obtained according to the difference
The change rate exact value ec of the deviation exact value e and deviation of prearranged signals and feedback signal, wherein the prearranged signals is described
The corresponding signal of desired speed, the feedback signal are the corresponding signal of the current rotating speed；And by the deviation exact value e
It is multiplied by corresponding quantizing factor k1, k2 respectively with the change rate exact value ec of the deviation, fuzzy quantity E, mould are found out after round numbers
Paste amount Ec；According to the fuzzy quantity E and the fuzzy quantity Ec, fuzzy quantity U is obtained by look-up table；Gained fuzzy quantity U values are multiplied
With scale factor k3, first controlled quentity controlled variable is obtained.
5. system according to any one of claim 1 to 4, which is characterized in that further include：
Pulse modulated circuit is connect with the governor circuit and the fan drive circuit respectively, for receiving the control letter
Number, and the pulse width modulation (PWM) signal generated according to the control signal is exported to the fan drive circuit.
6. a kind of rotation speed regulating method of fan, which is characterized in that including：
Obtain the current rotating speed of fan；
Compare the current rotating speed and desired speed, obtains the current rotating speed and the difference of desired speed；
The rotating speed of the fan is adjusted within the scope of the allowable error of the desired speed according to the difference；
The rotating speed that the fan is adjusted according to the difference includes within the scope of the allowable error of the desired speed：According to described
The feedback current of difference and the fan adjusts the rotating speed of the fan.
7. a kind of speed regulator of fan, which is characterized in that including：
Acquisition module, the current rotating speed for obtaining fan；
Comparison module is used for the current rotating speed and desired speed, obtains the current rotating speed and the difference of desired speed；
Adjust module, allowable error range of the rotating speed in the desired speed for adjusting the fan according to the difference
It is interior；
The adjustment module is additionally operable to adjust the rotating speed of the fan according to the feedback current of the difference and the fan.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665599.0A CN105673540B (en) | 2014-11-19 | 2014-11-19 | The rotation speed regulating method of fan, the adjustment of rotational speed system of device and fan |
| PCT/CN2015/086904 WO2016078448A1 (en) | 2014-11-19 | 2015-08-13 | Rotation speed adjustment method, apparatus and system for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665599.0A CN105673540B (en) | 2014-11-19 | 2014-11-19 | The rotation speed regulating method of fan, the adjustment of rotational speed system of device and fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105673540A CN105673540A (en) | 2016-06-15 |
| CN105673540B true CN105673540B (en) | 2018-07-17 |
Family
ID=56013248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410665599.0A Active CN105673540B (en) | 2014-11-19 | 2014-11-19 | The rotation speed regulating method of fan, the adjustment of rotational speed system of device and fan |
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| CN108534491B (en) * | 2018-06-15 | 2024-05-07 | 吉林大学 | Transverse ventilation static bed grain dryer and control method thereof |
| CN108999806B (en) * | 2018-08-02 | 2021-03-30 | 珠海格力电器股份有限公司 | Fan and method and device for adjusting wind speed of fan |
| CN109236705A (en) * | 2018-11-27 | 2019-01-18 | 英业达科技有限公司 | Fan rotational frequency control method and its device |
| CN111140530B (en) * | 2019-12-31 | 2021-11-12 | 苏州盛科通信股份有限公司 | Method for realizing SoC fan control under bootloader and SoC applying same |
| CN111927811B (en) * | 2020-07-30 | 2022-06-24 | 长沙景嘉微电子股份有限公司 | Control method, device, terminal and medium for display card fan |
| CN112268405A (en) * | 2020-10-23 | 2021-01-26 | Tcl家用电器（合肥）有限公司 | Control method and device of refrigeration fan, refrigeration equipment and storage medium |
| CN112564559A (en) * | 2020-11-30 | 2021-03-26 | 苏州远科智能技术有限公司 | Stepping motor driver based on fuzzy PID current loop control |
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| GB9112618D0 (en) * | 1991-06-12 | 1991-07-31 | Racal Safety Ltd | Dc motor control |
| AT398644B (en) * | 1992-07-02 | 1995-01-25 | Vaillant Gmbh | DIGITAL CONTROL CIRCUIT |
| CN1262064C (en) * | 2001-11-22 | 2006-06-28 | 旺玖科技股份有限公司 | Fan rotation speed controlling system |
| JP4746942B2 (en) * | 2005-08-31 | 2011-08-10 | 三洋電機株式会社 | Motor speed control integrated circuit |
| CN101285478A (en) * | 2007-04-12 | 2008-10-15 | 鸿富锦精密工业（深圳）有限公司 | Fan rotation speed control device and rotation speed control method |
| CN101471619B (en) * | 2007-12-28 | 2011-11-23 | 台达电子工业股份有限公司 | Drive circuit and drive method for motor |
| TWI535184B (en) * | 2012-07-17 | 2016-05-21 | 茂達電子股份有限公司 | Driving circuit and method for direct current fan |
| CN203362566U (en) * | 2013-05-23 | 2013-12-25 | 冼锡彬 | Electric fan circuit |
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| WO2016078448A1 (en) | 2016-05-26 |
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