CN103546088A - Motor rotation speed control device and method - Google Patents
Motor rotation speed control device and method Download PDFInfo
- Publication number
- CN103546088A CN103546088A CN201210244020.4A CN201210244020A CN103546088A CN 103546088 A CN103546088 A CN 103546088A CN 201210244020 A CN201210244020 A CN 201210244020A CN 103546088 A CN103546088 A CN 103546088A
- Authority
- CN
- China
- Prior art keywords
- motor
- rotating speed
- speed
- output
- partial objectives
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Control Of Ac Motors In General (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention relates to a motor rotation speed control device and method. The rotation speed control device comprises a soft starting unit, a rotation speed control unit, an interrupting unit and a motor rotation speed detecting unit. The motor rotation speed control device and method has the advantages that for the combination of a universal frequency converter and a motor, stall state of the motor can be avoided easily, and target rotation speed of the motor can be reached in short time.
Description
Technical field
Embodiments of the present invention relate to a kind of revolution speed control device and method for controlling number of revolution of motor.
Background technology
In work mechanism main shaft drives region, by the ac variable frequency speed regulation of transducer drive asynchronous motor (following, referred to as motor), become main flow.
Motor be take rated speed as separation, and the output area of determining that torque zone and rotating speed be greater than rated speed of determining that can be less than rated speed at rotating speed is respectively used.At the maximum output torque of determining output area motor, along with the increase of the rotating speed of motor, reduce.Therefore, motor when determining output area and use, in the process of constantly accelerating at motor, its maximum output torque likely lower than needed load torque and accelerating torque and.The maximum output torque of motor lower than needed load torque and accelerating torque and time, frequency converter is in order to increase the output torque of motor, and increases its output current, now slippage also increases thereupon.But the now torque of motor but can not increase thereupon, motor has entered stall region.After motor has entered stall region, the words slippage that the output current of frequency converter increases can not reduce.If electric current is increasing, frequency converter will trip because flowing through overcurrent, and running stops.
In order to prevent the generation of stall conditions, conventionally carry out main shaft special converter and the test of each motor combination, in order to understand motor in the output characteristic of regional, and by its parametrization.But, when the frequency converter in the face of general on market, such composite test is implementing very difficult, therefore, seek a kind ofly can not carry out composite test, just the stall conditions of motor can be easily avoided, but also revolution speed control device and the method for controlling number of revolution of rotating speed of target can be reached in the shorter time.
Summary of the invention
The object of embodiments of the present invention is, a kind of stall conditions that can easily avoid motor are provided, but also can reach in the shorter time revolution speed control device and the method for controlling number of revolution of rotating speed of target.
A kind of revolution speed control device of motor is provided according to a mode of device, comprise: soft start unit, it receives rotating speed of target and the accelerating time of motor, when this rotating speed of target receiving of soft start unit is greater than the rotating speed of target that the last time receives, this accelerating time is divided into a plurality of minutes accelerating time section, the rotating speed of target that this is received converts a plurality of partial objectives for rotating speeds corresponding with a plurality of minutes accelerating time section difference to, each partial objectives for rotating speed is greater than the partial objectives for rotating speed that soft start unit receives the moment output of this rotating speed of target, the last partial objectives for rotating speed of a rear partial objectives for rotating ratio is large, last partial objectives for rotating speed equals the rotating speed of target that this receives, it is corresponding with each minute accelerating time section that time period of each partial objectives for rotating speed is exported in soft start unit, Application of Motor Speed Detecting unit, it detects the output speed of motor, rotary speed controling unit, the signal of telecommunication of its output drive motor rotation use, and the first difference of the output speed of the motor arriving according to the current partial objectives for rotating speed of soft start unit output and Application of Motor Speed Detecting unit inspection, control the size of the signal of telecommunication so that the output speed of motor is approaching to the current partial objectives for rotating speed of soft start unit output, the frequency of the signal of telecommunication is corresponding with the current partial objectives for rotating speed of soft start unit output, interrupt location, while being more than or equal in the frequency of the signal of telecommunication from rotary speed controling unit with from the second difference of the corresponding frequency of output speed of the motor of Application of Motor Speed Detecting unit the threshold value of predetermining, make the output of soft start unit remain current partial objectives for rotating speed.
A kind of method for controlling number of revolution of motor is provided according to a mode of device, comprise: soft start step, it receives rotating speed of target and the accelerating time of motor, when this rotating speed of target receiving is greater than the rotating speed of target that the last time receives, the time of will speed up is divided into a plurality of minutes accelerating time section, the rotating speed of target that this is received converts a plurality of partial objectives for rotating speeds corresponding with a plurality of minutes accelerating time section difference to, each partial objectives for rotating speed is greater than the partial objectives for rotating speed of the moment output that receives this rotating speed of target, the last partial objectives for rotating speed of a rear partial objectives for rotating ratio is large, last partial objectives for rotating speed equals the rotating speed of target that this receives, the time period of exporting each partial objectives for rotating speed is corresponding with each minute accelerating time section, Application of Motor Speed Detecting step, the output speed of detection motor, rotating speed is controlled step, the signal of telecommunication of its output drive motor rotation use, and according to the first difference of the output speed of current partial objectives for rotating speed and motor, control the size of the signal of telecommunication so that the output speed of motor approaches to current partial objectives for rotating speed, the frequency of the signal of telecommunication is corresponding with current partial objectives for rotating speed, interrupt step, when the second difference of the frequency of the signal of telecommunication and the corresponding frequency of output speed of motor is more than or equal to the threshold value of predetermining, keeps current partial objectives for rotating speed.
Revolution speed control device and the method for controlling number of revolution of the motor of a mode according to the embodiment of the present invention, for the general frequency converter in market and motor combination, can easily avoid the stall conditions of motor, and make electronic function reach rotating speed of target in the shorter time.
Accompanying drawing explanation
Fig. 1 (A) illustrates the graph of relation of the rotating speed of main shaft definite purpose motor and common motor and the output voltage of frequency converter, and Fig. 1 (B) illustrates the rotary speed-torque curve chart of main shaft definite purpose motor and common motor.
Fig. 2 illustrates while adopting frequency converter to carry out variable frequency regulating speed control, the rotary speed-torque curve chart of motor.
Fig. 3 illustrates the pie graph of the revolution speed control device of motor of the present invention.
Soft start unit is shown Fig. 4 in the situation that equal in length each minute accelerating time section is exported the partial objectives for rotating speed increasing with equal amplitude, the rotating speed of target of soft start unit output and the schematic diagram of the relation of time.
Fig. 5 (A) illustrates motor rotary speed-torque curve chart in the normal state, and Fig. 5 (B) illustrates the rotary speed-torque curve chart of motor under stall conditions.
Fig. 6 illustrates because of when monitoring that slippage detects stall of motor and keeps the current output of soft start unit 11, the rotary speed-torque curve chart of motor.
Fig. 7 is the flow chart of the method for controlling number of revolution of motor.
Embodiment
In main shaft drives field, generally by transducer drive main shaft definite purpose motor, and by main shaft definite purpose motor, machined object is rotated, by feeding bite, machined object is processed.But main shaft definite purpose motor price is higher, therefore, consider to adopt common motor to substitute main shaft definite purpose motor.
Fig. 1 (A) illustrates the graph of relation of the rotating speed of main shaft definite purpose motor and common motor and the output voltage of frequency converter, and Fig. 1 (B) illustrates the rotary speed-torque curve chart of main shaft definite purpose motor and common motor.As shown in Fig. 1 (A), common motor for example, when reaching rated speed (1500rpm), and the output voltage of frequency converter just reaches maximum, is referred to as voltage-saturated condition.Because output voltage reaches maximum, motor power (output) is also limited, and motor power (output) is the long-pending of breakdown torque and rotating speed, if motor still continues to accelerate breakdown torque, must declines.So common motor is after reaching rated speed, maximum output torque is just declining (with reference to Fig. 1 (B)) always.When maximum output torque drop to lower than needed load torque and accelerating torque and time, motor has just entered stall conditions.For main shaft definite purpose motor, spindle drive motor is when reaching rated speed, the output voltage of frequency converter does not also reach maximum, certain rotating speed (for example 3000rpm) after surpassing rated speed, the output voltage of frequency converter just reaches maximum, if now motor still continues to accelerate breakdown torque must decline (with reference to Fig. 1 (B)).As shown in Fig. 1 (B), in the region that surpasses rated speed, the breakdown torque of common motor lower than the breakdown torque of main shaft definite purpose motor, therefore, is compared with main shaft definite purpose motor all the time, and stall more easily occurs common motor.
Revolution speed control device of the present invention and method for controlling number of revolution are mainly used in the common motor that stall more easily occurs, but for main shaft definite purpose motor motor, also can apply revolution speed control device of the present invention and method for controlling number of revolution.The motor occurring herein, except special instruction, comprises common motor and main shaft definite purpose motor.
Below, adopt Fig. 2 to take common motor and to there is the situation of stall, be specifically described as example.Fig. 2 illustrates while adopting frequency converter to carry out variable frequency regulating speed control, the rotary speed-torque curve chart of motor.Motor be take rated speed as separation, and the output area of determining that torque zone and rotating speed be greater than rated speed of determining that can be less than rated speed at rotating speed is respectively used.At the maximum output torque of determining output area motor, along with the increase of the rotating speed of motor, reduce.Therefore, motor when determining output area and use, in the process of constantly accelerating at motor, its maximum output torque likely lower than needed load torque and accelerating torque and.The maximum output torque of motor lower than needed load torque and accelerating torque and time, frequency converter is in order to increase the output torque of motor, and increases its output current, now slippage also increases thereupon.But the now torque of motor but can not increase thereupon, motor has entered stall region.After motor has entered stall region, the words slippage that the output current of frequency converter increases can not reduce.If electric current is increasing, frequency converter will trip because flowing through overcurrent, and running stops.
According to the revolution speed control device of embodiment of the present invention and method for controlling number of revolution, once make motor generation stall, the output frequency that stops frequency converter changing, and the output frequency that makes the rotating speed of motor catch up with frequency converter changes.After the output frequency of having caught up with frequency converter at the rotating speed of motor changes, then increase the output frequency of frequency converter, so that motor accelerates.Below, with reference to accompanying drawing, the revolution speed control device of embodiment of the present invention and method for controlling number of revolution are described.
Fig. 3 illustrates the pie graph of the revolution speed control device of motor of the present invention.Below, with reference to Fig. 3, the formation of the revolution speed control device of motor of the present invention is described in detail.Revolution speed control device 10 of the present invention is arranged on the inside of frequency converter (not shown), in order to control output voltage and the frequency of frequency converter, thus the rotating speed of control motor 20.Revolution speed control device 10 comprises: soft start unit 11, speed discrepancy computing unit 12, rotary speed controling unit 13, interrupt location 14, slippage computing unit 15 and Application of Motor Speed Detecting unit 16.Revolution speed control device 10 is connected in motor 20, for the motor speed of motor 20 accelerators, controls.
Below, with soft start unit 11, in the section output of equal in length each minute accelerating time, take the situation of the partial objectives for rotating speed that equal amplitude increases and describe as example.In this case, soft start unit 11 calculates the partial objectives for rotating speed of output according to following formula (1).
According to following formula (2), calculate a minute accelerating time section,
Wherein, N '
outbe described soft start unit 11 receive than on moment of the large rotating speed of target of the rotating speed of target that once receives, the partial objectives for rotating speed of described soft start unit 11 outputs, if the stable state of motor 20 after having accelerated, the current rotating speed of motor 20 reaches N '
out.N
infor motor 20 rotating speeds are increased, soft start unit 11 these rotating speed of target that receive.N is the acceleration times of regulation, for being greater than 1 positive integer.The numerical value of n is generally pre-set, and certainly, user also can adjust it.N
out(k) represent that described soft start unit 11 is at the partial objectives for rotating speed of k minute accelerating time section output, k is more than or equal to 1 positive integer, and the value of k is 1 ... n, T ' represents each minute accelerating time section.T represents 11 these accelerating time that receive of soft start unit.
Although be to take the situation of the partial objectives for rotating speed that equal amplitude increases with soft start unit 11 in the section output of equal in length each minute accelerating time to describe as example above, but the present invention is not limited thereto, each minute accelerating time section can length not etc., each partial objectives for rotating speed also can be non-etc. amplitude increase.
Application of Motor Speed Detecting unit 16, in motor accelerator, detects the actual output speed of motor 20.Application of Motor Speed Detecting unit 16 can adopt photoelectric encoder.
Speed discrepancy computing unit 12, the first value of delta 1 of the actual output speed of the motor 20 that the current partial objectives for rotating speed of calculating soft start unit 11 outputs and Application of Motor Speed Detecting unit 16 detect.
The signal of telecommunication of rotary speed controling unit 13 output drive motor 20 rotation use, and according to the first value of delta 1 from speed discrepancy computing unit 12, control the size of the signal of telecommunication, the current partial objectives for rotating speed of output speed 11 outputs to soft start unit of motor 20 is approached.Specifically, when new partial objectives for rotating speed is exported in soft start unit 11, owing to being accelerator, the last partial objectives for rotating speed of a rear partial objectives for rotating ratio is large, therefore the first value of delta 1 that speed discrepancy computing unit 12 calculates increases, the electric current of controlling frequency converters output by rotary speed controling unit 13 also can increase, thereby strengthens output torque, and the new partial objectives for rotating speed of 11 outputs approaches to soft start unit to make the rotating speed of motor 20.
The frequency of the signal of telecommunication of rotary speed controling unit 13 outputs is corresponding with the current partial objectives for rotating speed of soft start unit 11 outputs.The frequency of the signal of telecommunication of rotary speed controling unit 13 outputs refers to the frequency of controlling the electric current of frequency converter output by rotary speed controling unit 13.That is,, when the partial objectives for rotating speed of soft start unit 11 outputs increases gradually, it is large that the frequency of the electric current of frequency converter output also correspondingly becomes gradually.
Fig. 5 (A) illustrates motor 20 rotary speed-torque curve chart in the normal state, wherein, and synchronous speed N
s1with motor speed N
1difference be the slippage under current frequency converter frequency.Fig. 5 (B) illustrates the rotary speed-torque curve chart of motor 20 under stall conditions, wherein, and synchronous speed N
s2with motor speed N
2difference be the slippage under current frequency converter frequency.As shown in Fig. 5 (A), Fig. 5 (B), when motor 20 is stall conditions from common state-transition, it is large that its slippage also becomes thereupon.In fact, increase gradually along with the partial objectives for rotating speed of soft start unit 11 output, the frequency of the electric current of rotary speed controling unit 13 outputs is also becoming large (with reference to Fig. 2) gradually, when motor 20 enters into when determining output area and carrying out work, the slippage of the motor 20 under identical torque also increases gradually along with the increase of the frequency of the electric current of frequency converter output, when motor 20 is stall conditions, it is larger that slippage just becomes.According to above-mentioned slippage, determining the Changing Pattern of output area, can, by monitoring the sliding extent of slippage computing unit 15 outputs, judge whether motor 20 enters into stall conditions.
On the other hand, the continuation that is accompanied by motor is accelerated, along with diminishing gradually of slippage, and slippage N
s3'-N
3while being less than threshold value Th, if current minute accelerating time section finishes, interrupt location 14 makes soft start unit 11 continue the next partial objectives for rotating speed of output, if current minute accelerating time section do not finish, keeps current partial objectives for rotating speed.Along with the raising of the partial objectives for rotating speed of soft start unit 11 output, it is large that the frequency of the electric current of frequency converter output also becomes simultaneously, from the curve L of Fig. 6
1change to curve L
2.Motor 20 comes back to the accelerator of transducer drive, until the difference of synchronous speed and motor speed is while being again greater than threshold value Th, interrupt location 14 makes the output of soft start unit 11 remain current partial objectives for rotating speed again.Like this, repeat above-mentioned operation, until motor 20 finally reaches the rotating speed of target of user's input always.
The multiple of the rated slip that the general value of threshold value Th is here motor, preferably 2～4 of the rated slip of motor times, preferably 3 of the rated slip of motor times.The rated slip of motor refers to the slippage of motor under rated speed, nominal load.Take prevailing motor as example, 4 grades of motor that synchronous speed is 1500rpm, its rated speed is 1450rpm, and his rated slip is 50 * 4/120=1.66Hz, and 3 times of the rated slip that threshold value Th value is motor are 5Hz.
Threshold value given here is the preferably reference value drawing according to actual tests.Centered by the reference value that in reality, the value of threshold value can provide above, according to the working condition of motor, adjust up and down.Specifically, first select a reference threshold providing above, if stall has occurred motor at work, be that detected electric current constantly increases, and torque is declining, and shows that this threshold value is excessive, this threshold value should be turned down gradually, until no longer there is stall.In contrast, if in the accelerator of motor, soft start unit 11 remains current partial objectives for rotating speed continually, makes the accelerator of motor slower, shows that this threshold value may be too small, this threshold value should be heightened gradually.Here motor to the adjustment of threshold value, may be a process repeatedly, constantly adjust the size of threshold value, until can accelerate to rotating speed of target rapidly.In addition, revolution speed control device 10 can also arrange adjustment unit, by this adjustment unit, realizes the method for adjustment to described threshold value.Thus, can automatically adjust threshold value.
Fig. 7 is the flow chart of the method for controlling number of revolution of motor.Below, with reference to Fig. 7, the method for controlling number of revolution of motor of the present invention is described.
In step S101, receive rotating speed of target and the accelerating time of motor.
In step S102, when this rotating speed of target receiving is greater than the rotating speed of target that the last time receives, the time of will speed up is divided into a plurality of minutes accelerating time section.
In step S103, the rotating speed of target that this is received converts a plurality of partial objectives for rotating speeds corresponding with a plurality of minutes accelerating time section difference to, each partial objectives for rotating speed is greater than the partial objectives for rotating speed of the moment output that receives this rotating speed of target, the last partial objectives for rotating speed of a rear partial objectives for rotating ratio is large, last partial objectives for rotating speed equals the rotating speed of target that this receives, and the time period of exporting each partial objectives for rotating speed is corresponding with each minute accelerating time section.
In step S104, export k partial objectives for rotating speed.
In step S105, detect the actual output speed of motor.
In step S106, according to the first difference of the actual output speed of current partial objectives for rotating speed and motor, the size of the signal of telecommunication of control output drive motor rotation use is so that the actual output speed of motor approaches to current partial objectives for rotating speed.
In step S107, when the second difference of the frequency of the signal of telecommunication corresponding with current partial objectives for rotating speed and the corresponding frequency of actual output speed of motor is more than or equal to the threshold value of predetermining (step S107:Y), turn back to step S104 and keep current partial objectives for rotating speed, when the second difference is less than the threshold value of predetermining (step S107:N), enter into step S108.
In step S108, judgement output whether be n partial objectives for rotating speed, if n partial objectives for rotating speed, be k=n(step S108:Y), turn back to step S104, if not if n partial objectives for rotating speed (step S108:N) enters into step S109.
In step S109, if current minute accelerating time section finishes (step S109:Y), enter into step S110, if current minute accelerating time section do not finish (step S109:N), turn back to step S104 and keep current partial objectives for rotating speed.
In step S110, make k=k+1 turn back to again step S104, continue the next partial objectives for rotating speed of output.
It should be noted that, if in step S108, what judgement was exported is n partial objectives for rotating speed (step S108:Y), in the present invention, the method for controlling number of revolution of motor can repeat the step of S104～S108, that is to say, the rotating speed of motor is controlled the rotating speed of target that the stabilization of speed of motor is received in step S101 always.
Although understand embodiments of the present invention, but this execution mode is just suggested as an example, is not for limiting scope of invention.This execution mode can be implemented with other various forms, in the scope of main idea that does not depart from invention, can carry out various omissions, replacement, change.This execution mode and distortion thereof are contained in scope of invention, main idea, are equally also contained in the invention and equal scope thereof that is recorded in patent claims.
Claims (9)
1. a revolution speed control device for motor, is characterized in that, comprising:
Soft start unit, it receives rotating speed of target and the accelerating time of motor, when this rotating speed of target receiving of described soft start unit is greater than the rotating speed of target that the last time receives, this accelerating time is divided into a plurality of minutes accelerating time section, the rotating speed of target that this is received converts a plurality of partial objectives for rotating speeds corresponding with a plurality of minutes accelerating time section difference to, each partial objectives for rotating speed is greater than the partial objectives for rotating speed that described soft start unit receives the moment output of this rotating speed of target, the last partial objectives for rotating speed of a rear partial objectives for rotating ratio is large, last partial objectives for rotating speed equals the rotating speed of target that this receives, it is corresponding with each minute accelerating time section that time period of each partial objectives for rotating speed is exported in soft start unit,
Application of Motor Speed Detecting unit, it detects the output speed of motor;
Rotary speed controling unit, its output drives the signal of telecommunication of described motor rotation use, and the first difference of the output speed of the described motor arriving according to the current partial objectives for rotating speed of described soft start unit output and Application of Motor Speed Detecting unit inspection, control the size of the described signal of telecommunication so that the output speed of described motor is approaching to the current partial objectives for rotating speed of described soft start unit output, the frequency of the described signal of telecommunication is corresponding with the current partial objectives for rotating speed of described soft start unit output;
Interrupt location, while being more than or equal in the frequency of the described signal of telecommunication from described rotary speed controling unit with from the second difference of the corresponding frequency of output speed of the described motor of Application of Motor Speed Detecting unit the threshold value of predetermining, make the output of described soft start unit remain current partial objectives for rotating speed.
2. the revolution speed control device of motor as claimed in claim 1, is characterized in that,
Described soft start unit according to following formula (1) calculate output partial objectives for rotating speed, according to following formula (2), calculate a minute accelerating time section,
Wherein, N '
outbe described soft start unit receive than on moment of the large rotating speed of target of the rotating speed of target that once receives, the partial objectives for rotating speed of described soft start unit output,
N
infor making motor speed increase this rotating speed of target receiving of described soft start unit,
N is the acceleration times of regulation, for being greater than 1 positive integer,
N
out(k) represent that described soft start unit is at the partial objectives for rotating speed of k minute accelerating time section output, k is more than or equal to 1 positive integer, and the value of k is 1 ... n,
T ' represents each minute accelerating time section,
T represents this accelerating time receiving of soft start unit.
3. the revolution speed control device of motor as claimed in claim 1, is characterized in that,
Described threshold value setting is the multiple of the rated slip of described motor.
4. the revolution speed control device of motor as claimed in claim 3, is characterized in that,
Described threshold value setting is 2～4 times of rated slip of described motor.
5. the revolution speed control device of the motor as described in any one in claim 1～4, is characterized in that,
In the relation of the output speed of described motor and the output voltage of described rotary speed controling unit, described motor has the characteristic of regulation,
In the characteristic of described regulation, along with the output voltage of the described rotary speed controling unit that accelerates of the output speed of described motor also uprises, more than the output speed of described motor reaches rated speed, the output voltage of described rotary speed controling unit is saturated with maximum.
6. a method for controlling number of revolution for motor, is characterized in that, comprising:
Soft start step, it receives rotating speed of target and the accelerating time of motor, when this rotating speed of target receiving is greater than the rotating speed of target that the last time receives, the described accelerating time is divided into a plurality of minutes accelerating time section, the rotating speed of target that this is received converts a plurality of partial objectives for rotating speeds corresponding with a plurality of minutes accelerating time section difference to, each partial objectives for rotating speed is greater than the partial objectives for rotating speed of the moment output that receives this rotating speed of target, the last partial objectives for rotating speed of a rear partial objectives for rotating ratio is large, last partial objectives for rotating speed equals the rotating speed of target that this receives, the time period of exporting each partial objectives for rotating speed is corresponding with each minute accelerating time section,
Application of Motor Speed Detecting step, the output speed of detection motor;
Rotating speed is controlled step, its output drives the signal of telecommunication of described motor rotation use, and according to the first difference of the output speed of current partial objectives for rotating speed and described motor, control the size of the described signal of telecommunication so that the output speed of described motor approaches to current partial objectives for rotating speed, the frequency of the described signal of telecommunication is corresponding with current partial objectives for rotating speed;
Interrupt step, when the second difference of the frequency of the described signal of telecommunication and the corresponding frequency of output speed of described motor is more than or equal to the threshold value of predetermining, keeps current partial objectives for rotating speed.
7. the method for controlling number of revolution of motor as claimed in claim 6, is characterized in that,
In described soft start step, according to the partial objectives for rotating speed of following formula (1) calculating output, according to following formula (2) calculating minute accelerating time section,
Wherein, N '
outbe receive than on the partial objectives for rotating speed of moment output of the large rotating speed of target of the rotating speed of target that once receives,
N
infor making motor speed increase this rotating speed of target receiving,
N is the acceleration times of regulation, for being greater than 1 positive integer,
N
out(k) be illustrated in the partial objectives for rotating speed of k minute accelerating time section output, k is more than or equal to 1 positive integer, and the value of k is 1 ... n,
T ' represents each minute accelerating time section,
T represents the accelerating time that this receives.
8. the method for controlling number of revolution of motor as claimed in claim 6, is characterized in that,
Described threshold value setting is the multiple of the rated slip of described motor.
9. the method for controlling number of revolution of motor as claimed in claim 8, is characterized in that,
Described threshold value setting is 2～4 times of rated slip of described motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210244020.4A CN103546088B (en) | 2012-07-13 | 2012-07-13 | The revolution speed control device of motor and method for controlling number of revolution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210244020.4A CN103546088B (en) | 2012-07-13 | 2012-07-13 | The revolution speed control device of motor and method for controlling number of revolution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103546088A true CN103546088A (en) | 2014-01-29 |
| CN103546088B CN103546088B (en) | 2016-08-10 |
Family
ID=49969224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210244020.4A Active CN103546088B (en) | 2012-07-13 | 2012-07-13 | The revolution speed control device of motor and method for controlling number of revolution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103546088B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753400A (en) * | 2015-04-23 | 2015-07-01 | 山东泰开自动化有限公司 | Variable frequency soft-starting method of high-voltage asynchronous motor |
| CN108778528A (en) * | 2015-12-31 | 2018-11-09 | 苏尔寿混合技术有限公司 | Distributor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105328A (en) * | 1985-07-12 | 1987-01-07 | 路易斯·W·帕克 | Starting and protecting induction motor |
| CN101150293A (en) * | 2006-09-21 | 2008-03-26 | 三洋电机株式会社 | Control device of motor for refrigerant compressor |
| US7847498B2 (en) * | 2006-07-28 | 2010-12-07 | Mitsuba Corporation | Brushless motor driving device, brushless motor starting method, and method of detecting rotor stop position of brushless motor |
| CN102005997A (en) * | 2010-10-27 | 2011-04-06 | 北京和利康源医疗科技有限公司 | Device and method for driving and controlling stepper motor |
-
2012
- 2012-07-13 CN CN201210244020.4A patent/CN103546088B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105328A (en) * | 1985-07-12 | 1987-01-07 | 路易斯·W·帕克 | Starting and protecting induction motor |
| US7847498B2 (en) * | 2006-07-28 | 2010-12-07 | Mitsuba Corporation | Brushless motor driving device, brushless motor starting method, and method of detecting rotor stop position of brushless motor |
| CN101150293A (en) * | 2006-09-21 | 2008-03-26 | 三洋电机株式会社 | Control device of motor for refrigerant compressor |
| CN102005997A (en) * | 2010-10-27 | 2011-04-06 | 北京和利康源医疗科技有限公司 | Device and method for driving and controlling stepper motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753400A (en) * | 2015-04-23 | 2015-07-01 | 山东泰开自动化有限公司 | Variable frequency soft-starting method of high-voltage asynchronous motor |
| CN104753400B (en) * | 2015-04-23 | 2017-09-26 | 山东泰开自动化有限公司 | A kind of high-voltage asynchronous motor frequency conversion soft start method |
| CN108778528A (en) * | 2015-12-31 | 2018-11-09 | 苏尔寿混合技术有限公司 | Distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103546088B (en) | 2016-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2956395B1 (en) | Elevator car speed control in a battery powered elevator system | |
| US9692312B2 (en) | Power conversion apparatus, and air-conditioning apparatus using the same | |
| JP2012071218A (en) | Dust collector | |
| US20160274172A1 (en) | Motor driving apparatus including life determining unit of direct-current capacitor | |
| DK201070286A (en) | Method and apparatus for controlling the tip speed of a blade of a wind turbine | |
| CN104564754A (en) | Fan detection control method and system | |
| JP2010239711A (en) | Battery control device, vehicle, and method of controlling the battery | |
| CN104242246A (en) | Direct current brush motor stalling protection device and method based on current tracking | |
| CN103546088A (en) | Motor rotation speed control device and method | |
| EP2506423A2 (en) | Power Converting Device | |
| CN110572089B (en) | Electric tool and control method thereof | |
| JP4662248B2 (en) | Inverter device | |
| JP5602318B2 (en) | Vehicle control device | |
| CN103896145B (en) | Staircase automatic speed-regulating method | |
| CN104310190B (en) | Staircase control system and staircase progress control method | |
| WO2014192343A1 (en) | Inverter control device | |
| EP2845831A1 (en) | Elevator control apparatus | |
| US20180183322A1 (en) | Method for controlling inverter | |
| JP5149410B2 (en) | Motor drive control device for limiting motor output according to power supply characteristics of AC power supply | |
| CN105680765B (en) | Motor control device | |
| EP1816733A9 (en) | Method in frequency converter, and frequency converter | |
| CN106559016B (en) | A kind of the voltage chopping control method and device of switched reluctance machines | |
| CN107508532B (en) | Motor control method and device, motor and machine-readable storage medium | |
| CN108459519B (en) | Electric wrench control method and device | |
| KR100848561B1 (en) | Deceleration apparatus and method of an inducition motor for controlling overvoltage of an induction motor driving inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |