CN104378047B - Speed control method of linear infinitely variable speed motor - Google Patents
Speed control method of linear infinitely variable speed motor Download PDFInfo
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- CN104378047B CN104378047B CN201410624902.2A CN201410624902A CN104378047B CN 104378047 B CN104378047 B CN 104378047B CN 201410624902 A CN201410624902 A CN 201410624902A CN 104378047 B CN104378047 B CN 104378047B
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Abstract
The invention provides a speed control method of a linear infinitely variable speed motor and belongs to the technical field of automatic control. The speed control method of the linear infinitely variable speed motor comprises the following steps that (1), the motor is driven at preset starting speed; (2), the motor is controlled at constant speed; (3), if a speed changing instruction is received, new target speed and parameters are set, the second step is carried out, and if no speed changing instruction is received, the next step is carried out; (4), if a motor stopping instruction is received, voltage at the control end of the motor is decreased, the motor is stopped, and if no motor stopping instruction is received, the second step is carried out. According to the speed control method of the linear infinitely variable speed motor, the speed control efficiency is high, and accurate speed adjustment can be achieved.
Description
Technical field
The present invention relates to a kind of method for control speed of linear stepless variable speed driver, belong to technical field of automatic control.
Background technology
In commercial Application, electrodeless variable-speed motor will be used in a lot of fields, and infinite variable speed motor plays speed governing on equipment
Effect, the output speed of stepless speed-change motor and moment can do linear change between a minimum and a maximum.Infinite variable speed motor
Output make system stability close to aequum, thus reducing motor starting number of times to reduce mechanical shock and power consumption.But, mesh
The speed controlling efficiency of front a lot of electrodeless variable-speed motor is low, and does not enable precise control speed.Accordingly, it would be desirable to a kind of speed
Control efficiency is high, and enables the motor control method of accurate speed governing.
Content of the invention
Based on above weak point, the technical problem to be solved in the present invention is to provide a kind of speed controlling efficiency high, and
Enable the motor speed control method of accurate speed governing.
For solving above technical problem, present invention employs technical scheme below：
A kind of method for control speed of linear electrodeless variable-speed motor, comprises the following steps：
Step 1：With predetermined toggle speed drive motor；
Step 2：Fixed speed control motor；
Step 3：If receiving rapid change instruction, new target velocity and parameter, execution step 2 are set；If no, executing
Step 4；
Step 4：If receiving motor halt instruction, reducing motor control terminal voltage, stopping motor；If no, execution step
2.
The step of described fixed speed control motor includes：
The speed of the detection each time point of motor and present speed V3；
Motor current acceleration a3 is gone out according to the speed calculation of each time point of motor；
According to formula Voffset=-C2 × (C1 × a3+V3-V0) calculates the side-play amount of motor control voltage, wherein
VoffsetIt is to treat offset voltage, C1 and C2 sets in different use occasions according to motor, and V0 is presetting target velocity；
Motor control end is exported with current control voltage after described side-play amount is merged.
The step of described detection motor speed includes：
A, the speed pulse signal being exported by fixed cycle detection motor by motor rotary speed counter timer,
B, motor speed detection counter add 1；
If c detects motor output signal and declines, the value preserving velocity measuring enumerator is to corresponding data buffering, same
When, data buffering enumerator adds 1, velocity measuring counter O reset, if not having, execution step b；
Whether the value in d, detection data buffer counter is more than 12, if so, the value in all data bufferings is sued for peace；If
No, execution step b.
With predetermined toggle speed drive motor particular by motor control end hierarchical loading voltage until motor reaches
Mode to predetermined toggle speed is carried out.
Using above technical scheme, the beneficial effect acquired by the present invention is：
The method for control speed of the linear stepless variable speed driver that the present invention provides, not only enables gearshift adjustment, and fast
Degree control efficiency is high, and enables accurate speed governing.
Brief description
With reference to the accompanying drawings and detailed description the technology of the present invention is described in further detail：
Fig. 1 is the general flow chart of the method for control speed of linear stepless variable speed driver of the present invention；
Fig. 2 is the fixed speed control flow chart of the method for control speed of linear stepless variable speed driver of the present invention；
Fig. 3 is the velocity measuring flow chart of the method for control speed of linear stepless variable speed driver of the present invention.
Specific embodiment
A kind of method for control speed of linear electrodeless variable-speed motor, comprises the following steps：
Step 1：With predetermined toggle speed drive motor；
Step 2：Fixed speed control motor (step S3)；
Step 3：If receiving rapid change instruction (step S4), new target velocity and parameter (step S11) are set, again
Execution step 2, carries out fixed speed control to motor under new target velocity and parameter setting；If no, executing next step；
Step 4：If receiving motor halt instruction (step S5), reducing motor control terminal voltage (step S6), stopping motor；
If no, execution step 2.
Wherein, the step of described fixed speed control motor includes：
Step S301：The speed of the detection each time point of motor and present speed V3, such as detect the speed in motor T1 moment
Speed V2 in V1, T2 moment, speed V3 in T3 moment, present speed is V3, and the time interval of T1, T2 and T3 is T；
Step S302：Motor current acceleration a3 is gone out according to the speed calculation of each time point of motor；
Step S303：According to formula Voffset=-C2 × (C1 × a3+V3-V0) calculates the skew of motor control voltage
Amount, wherein VoffsetIt is to treat offset voltage, C1 is the dynamics adjusted back when speed shifts, and obtains optimised quantity by on-the-spot test
Value, C2 is the matching value of motor output and load, and relevant with the adjustment time interval T of circuit, load and motor, C1 and C2 is
Set in different use occasions according to different motors, such as set C1=3, C2=0.4 in depurator；In air-conditioning
It is set as C1=1.5, C2=0.25 in machine；It is set as C1=5, C2=0.9 in rig；This two values are multiple in design
Commissioning, to determine optimal value, makes motor have the output characteristics best suiting needs, and V0 is presetting target velocity；
Step S304：Motor control end is exported with current control voltage after described side-play amount is merged.
Above step circulation is carried out, and makes the speed of motor keep running with target velocity V0.
Wherein, the step of described detection motor speed includes：
A, the speed pulse signal (step being exported by fixed cycle detection motor by motor rotary speed counter timer
S201),
B, motor speed detection counter add 1 (step S202)；
If c detects motor output signal and declines (step S203), the value preserving velocity measuring enumerator is to counting accordingly
According to buffering (step S204), the inverted instantaneous value being present motor speed of this value, meanwhile, data buffering enumerator adds 1, speed
Degree detection counter resets, if not having, execution step b；
Whether the value in d, detection data buffer counter is more than 12 (steps S205), if so, by all data bufferings
Value summation (step S206), this value inverted be present motor speed exact value；If it is not, execution step b, wherein 12 are
The pulse signal number of revolution one circle output, this step can be accurately detected the current speed of motor；
E, return to step b, constantly the speed of present motor is detected.
Wherein, with predetermined toggle speed drive motor particular by motor control end hierarchical loading voltage until horse
The mode reaching predetermined toggle speed is carried out.First apply an initial voltage (S1) to motor, whether detection motor reaches
Toggle speed (step S2), if motor reaches toggle speed, realizing fixed speed control (step S3), if not having, increasing to motor
It is applied to the voltage (step S10) at motor control end, until motor reaches predetermined toggle speed.
Finally it should be noted that：These are only the preferred embodiments of the present invention, be not limited to the present invention, although
With reference to embodiment, the present invention is described in detail, for a person skilled in the art, it still can be to aforementioned
Technical scheme described in each embodiment is modified, or carries out equivalent to wherein some technical characteristics, but all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement made etc., should be included in the protection of the present invention
Within the scope of.
Claims (3)
1. a kind of method for control speed of linear electrodeless variable-speed motor is it is characterised in that comprise the following steps：
Step 1：With predetermined toggle speed drive motor；
Step 2：Fixed speed control motor；
The step of described fixed speed control motor includes：
The speed of the detection each time point of motor and present speed V3；
Motor current acceleration a3 is gone out according to the speed calculation of each time point of motor；
According to formula Voffset=-C2 × (C1 × a3+V3-V0) calculates the side-play amount of motor control voltage, wherein VoffsetIt is
Treat offset voltage, C1 is the dynamics adjusted back when speed shifts, C2 is the matching value of motor output and load, and V0 is presetting
Target velocity；
Motor control end is exported with current control voltage after described side-play amount is merged；
Step 3：If receiving rapid change instruction, new target velocity and parameter, execution step 2 are set；If no, execution step
4；
Step 4：If receiving motor halt instruction, reducing motor control terminal voltage, stopping motor；If no, execution step 2.
2. the method for control speed of linear electrodeless variable-speed motor according to claim 1 is it is characterised in that described detection horse
The step of the speed and present speed V3 that reach each time point includes：
A, the speed pulse signal being exported by fixed cycle detection motor by motor rotary speed counter timer,
B, motor speed detection counter add 1；
If c detects motor output signal declining, the value preserving velocity measuring enumerator is to corresponding data buffering, meanwhile, number
Plus 1 according to buffer counter, velocity measuring counter O reset, if not having, execution step b；
Whether the value in d, detection data buffer counter is more than 12, if so, the value in all data bufferings is sued for peace；If it is not,
Execution step b.
3. linear electrodeless variable-speed motor according to claim 1 method for control speed it is characterised in that：Opened with predetermined
Dynamic speed drive motor be by motor control end hierarchical loading voltage by way of motor reaches predetermined toggle speed
Carry out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410624902.2A CN104378047B (en) | 2014-11-06 | 2014-11-06 | Speed control method of linear infinitely variable speed motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410624902.2A CN104378047B (en) | 2014-11-06 | 2014-11-06 | Speed control method of linear infinitely variable speed motor |
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| CN104378047A CN104378047A (en) | 2015-02-25 |
| CN104378047B true CN104378047B (en) | 2017-02-08 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2638330Y (en) * | 2003-07-18 | 2004-09-01 | 中国科学院金属研究所 | Electromagnetic variable-speed motor controller |
| CN103856136A (en) * | 2012-12-04 | 2014-06-11 | 哈尔滨恒誉名翔科技有限公司 | Control system for permanent magnet synchronous motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4200842B2 (en) * | 2003-07-29 | 2008-12-24 | トヨタ自動車株式会社 | Vehicle and control method thereof |
| JP4270463B2 (en) * | 2004-09-29 | 2009-06-03 | 本田技研工業株式会社 | Shift control device for continuously variable transmission |
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2014
- 2014-11-06 CN CN201410624902.2A patent/CN104378047B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2638330Y (en) * | 2003-07-18 | 2004-09-01 | 中国科学院金属研究所 | Electromagnetic variable-speed motor controller |
| CN103856136A (en) * | 2012-12-04 | 2014-06-11 | 哈尔滨恒誉名翔科技有限公司 | Control system for permanent magnet synchronous motor |
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| CN104378047A (en) | 2015-02-25 |
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Application publication date: 20150225 Assignee: Infinitus (China) Co., Ltd. Assignor: GUANGZHOU LEIFUMANDE ELECTRICAL APPLIANCES CO., LTD. Contract record no.: 2015440000068 Denomination of invention: Speed control method of linear infinitely variable speed motor License type: Exclusive License Record date: 20150402 |
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