CN204669261U - A kind of brushless DC motor control system - Google Patents
A kind of brushless DC motor control system Download PDFInfo
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- CN204669261U CN204669261U CN201520088984.3U CN201520088984U CN204669261U CN 204669261 U CN204669261 U CN 204669261U CN 201520088984 U CN201520088984 U CN 201520088984U CN 204669261 U CN204669261 U CN 204669261U
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Abstract
The utility model belongs to Motor Control Field, is specifically related to a kind of control system for high-power photovoltaic brushless electric machine.The utility model discloses a kind of brushless DC motor control system, for driving brshless DC motor by photo-voltaic power supply, it is characterized in that: comprise for user's input parameter and the panel controller of display system running status, for photo-voltaic power supply signal is converted to brshless DC motor driver needed for the driver of pwm signal, process the parameter of user's input and the CPU of control and drive system execution, described driver comprises the adjustable change-over circuit be connected with the performance element of CPU, this change-over circuit is provided with the power interface for being connected with photo-voltaic power supply and the motor interface for being connected with brshless DC motor, described CPU comprises the computing unit and the performance element being connected driver that connect panel controller.This control system can adapt to the large feature of photo-voltaic power supply electrical property change, and can monitor the operating state of photo-voltaic power supply and motor in real time.
Description
Technical field
The utility model belongs to Motor Control Field, is specifically related to a kind of control system for high-power photovoltaic brushless electric machine.
Background technology
Due to photo-voltaic power supply characteristic comparatively civil power or commercial power have bigger difference, and conventional motors control system spininess is for civil power or commercial power exploitation, and thus conventional motors control system can not be applicable to use the motor of photo-voltaic power supply well.In prior art, the electric machine control system motor of use photo-voltaic power supply being carried out to specific aim exploitation is also comparatively rare at present.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of easy-to-use, stable performance, operate steadily safe brushless DC motor control system.
The utility model adopts following technical scheme: provide a kind of brushless DC motor control system, for driving DC brushless motor by photo-voltaic power supply, it is characterized in that: comprise for user's input parameter and the panel controller of display system running status, conversion photo-voltaic power supply also drives the driver of brshless DC motor, process the parameter of user's input and the CPU of control and drive system execution, described CPU comprises the computing unit and the performance element being connected driver that connect panel controller, described driver comprises the adjustable change-over circuit be connected with the performance element of CPU, this change-over circuit is provided with the power interface for being connected with photo-voltaic power supply and the motor interface for being connected with brshless DC motor.
From above-mentioned to description of the present utility model, compared with prior art, the beneficial effect that the utility model is desirable is:
1, by arranging separately the CPU for controlling change-over circuit, this control system is enable to be applicable to electricity special
Property changes photo-voltaic power supply greatly;
2, the function monitoring motor, power supply status is in real time achieved by panel panel controller.
Accompanying drawing explanation
Fig. 1 is the pie graph of a kind of brushless DC motor control system of the utility model.
Embodiment
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail.
This brushless DC motor control system being applicable to photo-voltaic power supply is shown in Figure 1, and comprise panel controller, CPU, driver, photo-voltaic power supply is connected on a drive with brshless DC motor.
Panel controller comprises the input unit of confession user input systems operational factor and the display of display system real-time status, and input unit is all connected CPU with display.
CPU comprises monitoring unit, computing unit and performance element, wherein: monitoring unit connects display, the computing unit of CPU, the driver of panel controller, for the real-time status of collection photovoltaics power supply and brshless DC motor; Computing unit connects the input unit of panel controller and monitoring unit, the performance element of CPU, for the treatment of the information from input unit and monitoring unit, and result is sent to performance element; Performance element connects computing unit and the driver of CPU, for the result of computing unit is converted into executive signal, and is dealt into driver.Described executive signal comprises rotational speed setup and conditioning signal, alarm signal.
Power interface, motor interface that driver comprises change-over circuit and is connected with change-over circuit.Change-over circuit can for the pwm signal of brshless DC motor for being converted to by the signal of telecommunication of photo-voltaic power supply, and change-over circuit is provided with the rotating speed terminal and alarm terminal that are connected with the performance element of CPU.Rotating speed terminal is for receiving from the rotational speed setup of the performance element of CPU and conditioning signal, comprising the 0-10V end that connects high level and meet low level AGND and hold.Alarm terminal for receive from CPU alarm signal, comprise normally-closed contact NC hold, normally opened contact NO hold and common COM end, during normal operation, CPU control NC-COM closed, NO-COM hold disconnection, and the electrical connection between photo-voltaic power supply and brshless DC motor is closed; During the system failure, the disconnection of CPU control NC-COM end, NO-COM end close, and the electrical connection between photo-voltaic power supply and brshless DC motor disconnects.Power interface connects photo-voltaic power supply, comprise connect power supply high level HV end, connect power supply low level GND end and protective earthing terminal PE holds.Motor interface is three interfaces, for connecting brshless DC motor, comprises U end, V end and W end.
The operating procedure of this brushless DC motor control system is as follows:
Step 1, on the power interface that photo-voltaic power supply and brshless DC motor are connected respectively to driver and motor interface, guarantees secure and reliable connection;
Step 2, the parameters needed for user runs in the input unit input system of panel controller;
Step 3, the computing unit of CPU receives and calculates the parameters of user's input, result of calculation is sent to performance element, result of calculation is compiled into rotational speed setup signal and CRANK PULSES by performance element, wherein CRANK PULSES is sent to the alarm terminal of change-over circuit in driver, and rotational speed setup signal is sent to the rotating speed terminal of change-over circuit in driver;
Step 4, change-over circuit receives and the CRANK PULSES performed from CPU and rotational speed setup signal, in alarm terminal, closed, the NO-COM of NC-COM disconnects, photo-voltaic power supply and brushless dc mechatronics, change-over circuit converts the signal of telecommunication from photo-voltaic power supply to pwm signal needed for brshless DC motor, and drives brshless DC motor to run by set rotating speed;
Step 5, be arranged on the information such as rotating speed, temperature of the voltage of power supply status transducer on the power interface of driver and motor interface and motor state sensor collection photovoltaics power supply, electric current and brshless DC motor, feed back to the monitoring unit of CPU and show on the display of panel controller;
Step 6, cpu monitor unit receives the information from power supply status transducer and motor state sensor, be sent to computing unit, computing unit calculates the information from monitoring unit, result of calculation is sent to performance element, result of calculation is compiled into rotary speed regulating signal or closes down signal by performance element, and rotary speed regulating signal is sent to the rotating speed terminal on the change-over circuit of driver, closes down signal and is sent to alarm terminal on the change-over circuit of driver;
Step 7, if driver receives the rotary speed regulating signal from CPU, the rotating speed of motor is then regulated according to this rotary speed regulating signal, if driver receives and closes down signal from CPU, in alarm terminal, NC-COM disconnection, NO-COM close, electrical connection between photo-voltaic power supply and brshless DC motor disconnects, and motor shuts down.
Above are only an embodiment of the present utility model, but of the present utility modelly relate to conception and be not limited thereto, all changes utilizing this design the utility model to be carried out to unsubstantiality, all should belong to the behavior of invading the utility model protection range.
Claims (8)
1. a brushless DC motor control system, for driving brshless DC motor by photo-voltaic power supply, it is characterized in that: comprise for user's input parameter and the panel controller of display system running status, for photo-voltaic power supply signal is converted to brshless DC motor driver needed for the driver of pwm signal, process the parameter of user's input and the CPU of control and drive system execution, described CPU comprises the computing unit and the performance element being connected driver that connect panel controller, described driver comprises the adjustable change-over circuit be connected with the performance element of CPU, this change-over circuit is provided with the power interface for being connected with photo-voltaic power supply and the motor interface for being connected with brshless DC motor.
2. a kind of brushless DC motor control system according to claim 1, is characterized in that: the power interface on described driver comprise connect high level HV end, connect low level GND hold and protective earthing terminal PE hold.
3. a kind of brushless DC motor control system according to claim 1, is characterized in that: the motor interface on described driver is three interfaces comprising U end, V end and W end.
4. a kind of brushless DC motor control system according to claim 1, is characterized in that: described driver is also provided with and regulates and given rotating speed terminal for motor speed.
5. a kind of brushless DC motor control system according to claim 1, it is characterized in that: described driver is also provided with the alarm terminal be connected with the performance element of CPU, described alarm terminal comprises normally-closed contact NC end, normally opened contact NO holds and common COM end, during system worked well, CPU control NC holds hold with COM closed, NO hold and hold with COM and disconnects, during the system failure CPU control NC end and COM hold disconnect, NO holds and COM holds and closes.
6. a kind of brushless DC motor control system according to claim 1, it is characterized in that: described CPU also comprises monitoring unit, the power interface of described driver with motor interface is respectively equipped with the power supply status transducer and motor state sensor that are connected with the monitoring unit of CPU.
7. a kind of brushless DC motor control system according to claim 6, it is characterized in that: described power supply status transducer comprises supply voltage transducer and source current transducer, and described motor state sensor comprises speed probe and temperature sensor.
8. a kind of brushless DC motor control system according to claim 1, is characterized in that: described panel controller comprise be connected with the computing unit of CPU, for user input parameter input unit and be connected with the monitoring unit of CPU, for the display of real-time display power supply and motor status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520088984.3U CN204669261U (en) | 2015-02-09 | 2015-02-09 | A kind of brushless DC motor control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520088984.3U CN204669261U (en) | 2015-02-09 | 2015-02-09 | A kind of brushless DC motor control system |
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| CN204669261U true CN204669261U (en) | 2015-09-23 |
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| CN201520088984.3U Active CN204669261U (en) | 2015-02-09 | 2015-02-09 | A kind of brushless DC motor control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486521A (en) * | 2019-09-03 | 2019-11-22 | 陕西科技大学 | A kind of execution time adjustable electric valve actuator control device and method |
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2015
- 2015-02-09 CN CN201520088984.3U patent/CN204669261U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486521A (en) * | 2019-09-03 | 2019-11-22 | 陕西科技大学 | A kind of execution time adjustable electric valve actuator control device and method |
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