CN201878079U - Speed regulation control system of closed planer - Google Patents
Speed regulation control system of closed planer Download PDFInfo
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- CN201878079U CN201878079U CN2010206854648U CN201020685464U CN201878079U CN 201878079 U CN201878079 U CN 201878079U CN 2010206854648 U CN2010206854648 U CN 2010206854648U CN 201020685464 U CN201020685464 U CN 201020685464U CN 201878079 U CN201878079 U CN 201878079U
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Abstract
The utility model relates to a speed regulation control system of a closed planer, which is used for controlling the rotation speed of a drive motor in the closed planer, wherein the drive motor is a switched reluctance motor (SRM). The speed regulation control system comprises a controller, a power inverter and a detection unit, wherein the detection unit is connected with the drive motor and the power inverter, respectively detects the operating parameters of the drive motor and the output current of the power inverter, and feeds detection information back to the controller; the controller computes and generates control signals according to a given rotation speed value and the detection information fed back by the detection unit, and outputs the control signals to the power inverter; and the power inverter is connected with the drive motor and controls the drive motor to rotate. The SRM speed regulation control system has the advantages that the control accuracy is high, the system can adapt to environmental changes, the dynamic property is good, the self-adaptability and the robustness are very good, the structure is simple and reliable, and the system is particularly suitable for a closed planer speed regulation drive system which is required to frequently rotate forward and reversely.
Description
Technical field
The utility model belongs to the metal-planing machine technical field, specifically, relates to a kind of speed-adjusting and control system of metal-planing machine.
Background technology
Metal-planing machine is the machine-tool of mechanical industry, and domestic traditional heavy machine tool plant is main dragging system with DC generator, dc motor system (F-D system) all.F-D system price costliness, efficient is lower, can produce bigger spark on the brush during high-speed overload, therefore can not adapt to the demand of modern production, is badly in need of transforming.
And switched reluctance machines drive system (SRD) integrates switched reluctance motor (SRM), power electronic technology and control technology, is a kind of typical electromechanical integration new high-tech product.It has not only kept the AC asynchronous motor reliable and good advantage of DC motor controllability simple in structure, firm, but also has outstanding advantages such as price is low, efficient is high, adaptive faculty is strong, demonstrates wide application prospect.This makes SRD become after asynchronous motor frequency-changing speed-regulating system and dc motor speed-regulating system, the another stepless speed regulated AC of new generation system that has potentiality.Because superperformance and the distinct advantages of switched reluctance motor SRM, making it be applied to metal-planing machine becomes possibility.
Yet what present switched reluctance motor SRM adopted is the biconvex electrode structure, highly saturated, so change when its drive system is, non linear system itself.Present control strategy is mainly based on linear model, in conjunction with traditional PI or PID controller, the SRD system of Gou Jianing is difficult to obtain desirable output characteristic thus, not only torque pulsation is big, noise is big, and system robustness is poor, its dynamic and static performance can't compare favourably with DC Transmission, and this has seriously hindered the application of SRD.
Artificial neural net can approach any nonlinear function and have stronger self study, self adaptation, self organization ability by arbitrary accuracy under certain conditions.Should realize high performance control if be applied in the rotating speed control strategy of non-linear serious switched reluctance motor SRM to switched reluctance motor SRM.Based on this, but how being the hardware platform of a kind of backer's artificial neural networks control algolithm of revolution speed control system design of switched reluctance motor SRM, is a subject matter to be solved in the utility model.
The utility model content
The problem that the utility model adopts the F-D system to drag existingly to cost an arm and a leg in order to solve traditional metal-planing machine, efficient is lower, a kind of metal-planing machine speed-adjusting and control system based on the SRD system is provided, to improve the operating efficiency and the control precision of metal-planing machine, reduce system cost.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of speed-adjusting and control system of metal-planing machine is used for the rotating speed of metal-planing machine drive motors is controlled, and wherein, described drive motors is a switched reluctance motor, and described speed-adjusting and control system comprises controller, power inverter and detecting unit; Described detecting unit connects drive motors and power inverter, respectively the operational factor of drive motors and the output current of power inverter is detected, and feeds back to described controller; Described controller generates control signal according to the detection information calculations of given rotating speed value and detecting unit feedback, exports described power inverter to; Described power inverter connects drive motors, the rotation of controlling and driving motor.
Further, comprise current detection module and position detecting module in described detecting unit, described current detection module is connected between power inverter and the controller, gathers the output current of power inverter and feeds back to described controller; Described position detecting module is connected between drive motors and the controller, detects the rotor-position and the rotating speed of drive motors and feeds back to described controller.
Further again, described controller is a dsp controller.
Further, described controller is the dsp controller based on the TMS320F2812 main control chip.
Compared with prior art, advantage of the present utility model and good effect are: SRM speed-adjusting and control system control precision height of the present utility model, variation can conform, dynamic characteristic is good, have adaptivity and robustness preferably, and metal-planing machine speed-adjusting driving system simple and reliable for structure, that be particularly useful for the frequent rotating of needs.
After reading the detailed description of the utility model execution mode in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the schematic block circuit diagram of a kind of embodiment of the speed-adjusting and control system of the metal-planing machine that proposes of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Embodiment one, in order to improve the operating efficiency of metal-planing machine, reduce system cost, present embodiment adopts the drive motors of switched reluctance motor SRM as metal-planing machine, constitute switched reluctance machines drive system SRD, to drive each the actuator's operation in the metal-planing machine.
Because what switched reluctance motor SRM adopted is the biconvex electrode structure, highly saturated, so change when its drive system is, non linear system itself.Existing control strategy in conjunction with traditional PI or PID controller, uses above-mentioned three kinds of control models mainly based on linear model simply, feedforward torque (or electric current) control before adopting, the control of feedback rotating speed.The SRD system of Gou Jianing is difficult to obtain desirable output characteristic thus, and not only torque pulsation is big, noise is big, and system robustness is poor, and its dynamic and static performance can't compare favourably with DC Transmission, and this has seriously hindered the application of SRD.With regard to its reason, mainly be because SRM is the height non linear system, have biconvex and extremely concentrate the geometry of winding, for the output breakdown torque usually runs on saturation condition, reluctance torque is the nonlinear function of stator current and rotor-position, and traditional linear control method is difficult to satisfy dynamically non-linear, the variable element requirement of SRM faster.
In order to improve systematic function, present embodiment has at first designed speed-adjusting and control system hardware platform as shown in Figure 1 for switched reluctance motor SRM, operation is based on RBF (RadicalBasis Function on this hardware platform, RBF) ANN Control algorithm, thus realized accurate control to switched reluctance motor SRM rotating speed.
Referring to shown in Figure 1, the speed-adjusting and control system hardware platform of present embodiment mainly is made up of controller, power inverter and detecting unit three parts.Wherein, controller is the brain of SRD system, receive the given rotating speed value of user's input, and in conjunction with the detection information of detecting unit feedback, calculate the generation control signal by the rotating speed control algolithm of writing in advance, export power inverter to, with the element break-make in the power controlling converter, and then, make motor speed level off to the given rotating speed value by power inverter control switch reluctance motor SRM running.
In the present embodiment, described detecting unit is used for the operational factor of sense switch reluctance motor SRM and the output current of power inverter, can specifically comprise current detection module and position detecting module two parts.Wherein, current detection module is connected between the input of the output of power inverter and controller, gathers the output current of power inverter, and feeds back to controller to participate in rotating speed control computing; Described position detecting module is connected between the input of drive motors and controller, detects the rotor-position and the rotating speed of drive motors, and feeds back to controller fellowship rotating speed control computing.
In order to carry out complicated ANN Control strategy, present embodiment adopts the concrete running speed control algolithm of dsp controller, receive the given rotating speed value of user's input, and the motor rotor position that provided of integrated location detection module and current detection module, the order of feedback information such as speed and electric current and outside input, pass through analyzing and processing, the decision control strategy, and handle it according to the control corresponding algorithm, send phase make-and-break signal and pulse-width modulation (PWM) signal, thereby the element break-make in the power controlling converter realizes the accurate control to motor speed.Present embodiment preferably adopts the TMS320F2812 main control chip of company of Texas Instruments (TI) to design dsp controller, not only processing speed is fast, the integrated level height, and hardware configuration is simplified, it is higher that control precision becomes, having solved the single-chip microcomputer of switched reluctance motor SRM employing in the past is main control chip, and its control system response speed is slow, problems such as system reliability difference.
Because artificial neural net has under certain condition and can approach any nonlinear function and have the characteristic of stronger self study, self adaptation, self organization ability by arbitrary accuracy.So be applied to realize high performance control in the control strategy of non-linear serious switched reluctance motor SRM to switched reluctance motor SRM.
The dsp controller of writing RBF ANN Control algorithm is carried out off-line training, after treating that off-line training is good, finish the online training of neural net in conjunction with on-line identification, allow controller in motor regulating networks adaptively in service parameter, the variation that makes it to conform.The result shows: operation comes the rotating speed of switched reluctance motor SRM is controlled based on the ANN Control algorithm of RBF in the speed-adjusting and control system that present embodiment proposed, and has significant advantages such as response speed is fast, control precision is high, adaptability is strong.
Switched reluctance machines drive system SRD of the present utility model, simple and reliable for structure, efficient is high, speed-regulating range width, control are accurate, can realize every function of metal-planing machine well.
Certainly; the above only is a kind of preferred implementation of the present utility model; should be noted that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. the speed-adjusting and control system of a metal-planing machine is used for the rotating speed of metal-planing machine drive motors is controlled, and it is characterized in that: described drive motors is a switched reluctance motor, and described speed-adjusting and control system comprises controller, power inverter and detecting unit; Described detecting unit connects drive motors and power inverter, respectively the operational factor of drive motors and the output current of power inverter is detected, and feeds back to described controller; Described controller generates control signal according to the detection information calculations of given rotating speed value and detecting unit feedback, exports described power inverter to; Described power inverter connects drive motors, the rotation of controlling and driving motor.
2. the speed-adjusting and control system of metal-planing machine according to claim 1, it is characterized in that: in described detecting unit, comprise current detection module and position detecting module, described current detection module is connected between power inverter and the controller, gathers the output current of power inverter and feeds back to described controller; Described position detecting module is connected between drive motors and the controller, detects the rotor-position and the rotating speed of drive motors and feeds back to described controller.
3. the speed-adjusting and control system of metal-planing machine according to claim 1 and 2, it is characterized in that: described controller is a dsp controller.
4. the speed-adjusting and control system of metal-planing machine according to claim 3 is characterized in that: described controller is the dsp controller based on the TMS320F2812 main control chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206854648U CN201878079U (en) | 2010-12-20 | 2010-12-20 | Speed regulation control system of closed planer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206854648U CN201878079U (en) | 2010-12-20 | 2010-12-20 | Speed regulation control system of closed planer |
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| CN201878079U true CN201878079U (en) | 2011-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525863A (en) * | 2020-06-02 | 2020-08-11 | 李敬 | Motor speed regulating device and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525863A (en) * | 2020-06-02 | 2020-08-11 | 李敬 | Motor speed regulating device and control method thereof |
| CN111525863B (en) * | 2020-06-02 | 2021-12-07 | 江苏朗晟激光科技有限公司 | Motor speed regulating device and control method thereof |
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Owner name: SHANDONG JINLIDA ELECTROMECHANICAL TECHNOLOGY CO., Free format text: FORMER OWNER: QINGDAO TECHNOLOGY UNIVERSITY Effective date: 20120507 |
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Free format text: CORRECT: ADDRESS; FROM: 266042 QINGDAO, SHANDONG PROVINCE TO: 261057 WEIFANG, SHANDONG PROVINCE |
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Effective date of registration: 20120507 Address after: 261057 No. 269, A Road, Weifang Economic Development Zone, Shandong, China Patentee after: Shandong Jinlida electrical Polytron Technologies Inc Address before: 266042 Zhengzhou Road, Sifang District, Shandong, China, No. 53, No. Patentee before: Qingdao University of Science & Technology |
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| C17 | Cessation of patent right | ||
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Granted publication date: 20110622 Termination date: 20121220 |