CN103187908A - Brushless direct current motor controller with function of automatically adjusting phase advance angle - Google Patents
Brushless direct current motor controller with function of automatically adjusting phase advance angle Download PDFInfo
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- CN103187908A CN103187908A CN2011104576628A CN201110457662A CN103187908A CN 103187908 A CN103187908 A CN 103187908A CN 2011104576628 A CN2011104576628 A CN 2011104576628A CN 201110457662 A CN201110457662 A CN 201110457662A CN 103187908 A CN103187908 A CN 103187908A
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- 239000003381 stabilizer Substances 0.000 claims description 6
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a brushless direct current motor controller with a function of automatically adjusting phase advance angle. The brushless direct current motor controller comprises a brushless motor control chip, an IGBT inversion unit, a rotor position detecting circuit, an over-current detection circuit and a power source. The over-current detection circuit is used for detecting a busbar current signal, converting the busbar current signal into a voltage signal (Uf) and sending the voltage signal to an over-current input foot (If) processed by the brushless motor control chip. The rotor position detecting circuit is used for inputting a position signal of a rotor into the brushless motor control chip which is used for outputting a signal to the IGBT inversion unit, an output end of the IGBT inversion unit is connected with a motor winding, the voltage signal (Uf) output by the over-current detection circuit is further connected with an amplifying circuit, and an output end of the amplifying circuit is connected with a phase advance angle input end of the brushless motor control chip. According to the brushless direct current motor controller, the phase advance angle can be automatically adjusted according to a bushar current to adapt to different loads, the adjustment range of the phase advance angle is wide, the demands of multi-rotating speed and multi-power application on a motor are met, and motor efficiency is improved.
Description
Technical field:
The present invention relates to a kind of DC brushless motor controller with automatic control phase advance angle.
Background technology:
At present, utilize dc brushless motor special integrated circuit IC and corresponding hardware to control the running of dc brushless motor, can not write software, circuit structure is simple, control also simple, low cost of manufacture, large-scale production is convenient, as shown in Figure 1, mainly comprise dc brushless motor special integrated circuit (for example 6551,6854 etc. IC), IGBT inversion unit, rotor position detection circuit (mainly being Hall element), resistance R 20 detects bus current and converts voltage signal Uf to, delivers to the overcurrent input pin If of dc brushless motor special integrated circuit then.In addition, set phase place advance angle voltage signal by electric resistance partial pressure, and voltage signal is input to input ANG, determine the phase place advance angle by the dc brushless motor special integrated circuit according to the setting voltage signal.
As shown in Figure 1, traditional dc brushless motor special integrated circuit can only be set stationary phase advance angle (0-58 degree) by resistance R 1, R2 dividing potential drop (0-5V).At present a lot of electrical machinery plants are puzzled by following problem: 1. dispose advance angle according to the motor load point, if advance angle is very big, the electric motor starting failure appears in regular meeting in the time of so when starting.2. along with the application of client to the many rotating speeds of motor, many power, fixedly advance angle is not satisfying the high efficiency requirement in whole interval.3. dc brushless motor special integrated circuit IC can not look like software scenario again, can write advance angle formula etc.Even if write, also be not suitable for each motor.
Summary of the invention:
The purpose of this invention is to provide a kind of DC brushless motor controller with automatic control phase advance angle, it is the control phase advance angle automatically, adapts to different loads, and the adjustable range of phase place advance angle is more widened, satisfy the requirement to the application of the many rotating speeds of motor, many power, improve electric efficiency.
The objective of the invention is to be achieved by following technical scheme.
A kind of DC brushless motor controller with automatic control phase advance angle, comprise the brushless electric machine special integrated circuit, I GBT inversion unit, rotor position detection circuit, over-current detection circuit and power supply, over-current detection circuit detects the bus current signal and converts voltage signal to delivers to the overcurrent input pin that the brushless electric machine special integrated circuit is handled, rotor position detection circuit is input to the brushless electric machine special integrated circuit with the position signalling of rotor, brushless electric machine special integrated circuit output signal is to the IGBT inversion unit, the output of IGBT inversion unit connects the motor winding, it is characterized in that: the voltage signal of over-current detection circuit output also is connected with amplifying circuit, and the output of amplifying circuit is connected to the phase place advance angle input of brushless electric machine special integrated circuit.
Between the phase place advance angle input of the output of amplifying circuit described above and brushless electric machine special integrated circuit filtering circuit is set, filtering circuit is to adopt two-stage RC filtering circuit.
Brushless electric machine special integrated circuit described above is dc brushless motor special integrated circuit 6551 or 6854.
Amplifying circuit described above comprises operational amplifier IC1A, resistance R 4 and resistance R 5, resistance R 4 two ends are connected to the 1st pin and the 2nd pin of operational amplifier IC1A, the two ends of resistance R 5 are the 1st pin and the ground of operational amplifier IC1A respectively, and the 3rd pin of operational amplifier IC1A is as signal input pin.
Between the voltage signal Uf of over-current detection circuit output described above and the 3rd pin of operational amplifier IC1A voltage stabilizing circuit is set.
Voltage stabilizing circuit described above comprises voltage-stabiliser tube D1, capacitor C 3 and resistance R 6, and voltage signal Uf is connected resistance R 6 with the 3rd pin of operational amplifier IC1A, voltage-stabiliser tube D1, capacitor C 3 backs in parallel one end ground connection, the 3rd pin of other end concatenation operation amplifier IC1A.
The present invention's beneficial effect compared with prior art is: 1) the present invention amplifies processing with the voltage signal Uf of over-current detection circuit output, and be input to the phase place advance angle input ANG of brushless electric machine special integrated circuit, the voltage signal Uf of over-current detection circuit output constantly changes, the magnitude of voltage that is input to the phase place advance angle input ANG of brushless electric machine special integrated circuit also constantly changes, almost approach linear variation, therefore, can be according to the difference of load, the variation that bus current produces, obtain different phase place advance angles, have automatic regulatory function, adapt to different loads, reduce the incorrect fault that causes starting failure of phase place advance angle setting; 2) along with the application of client to the many rotating speeds of motor, many power, traditional fixedly advance angle is not satisfying the high efficiency requirement in whole interval, phase place advance angle of the present invention changes automatically according to the variation of bus current, can improve efficiency of motor, satisfies the requirement of the many rotating speeds of motor, many power; 3) between the phase place advance angle input of the output of amplifying circuit and brushless electric machine special integrated circuit filtering circuit is set, filtering circuit is to adopt two-stage RC filtering circuit, the interference signal that is input to the phase place advance angle input ANG of brushless electric machine special integrated circuit can be got rid of; 4) amplifying circuit is operational amplifier, and the multiplication factor height makes the automatic adjusting of phase place advance angle be able to reliable enforcement, and the adjusting multiplication factor can regulate resistance R 4 and resistance R 5 is achieved, and is simple and convenient; 5) between the 3rd pin of the voltage signal Uf of over-current detection circuit output and operational amplifier IC1A voltage stabilizing circuit is set, makes the input signal that enters operational amplifier more stable
Description of drawings:
Fig. 1 is the DC brushless motor controller circuit theory diagrams that tradition adopts special integrated circuit;
Fig. 2 is DC brushless motor controller circuit block diagram of the present invention;
Fig. 3 is the circuit diagram of the further expansion of this Fig. 2;
Fig. 4 is bus current of the present invention and the schematic diagram of corresponding signal conversion voltage.
Fig. 5 is bus current of the present invention and the corresponding schematic diagram of the voltage U (ANG) of the phase place advance angle input ANG of brushless electric machine special integrated circuit
Embodiment:
Also the present invention is described in further detail by reference to the accompanying drawings below by specific embodiment.
As Fig. 2, shown in Figure 3, a kind of DC brushless motor controller with automatic control phase advance angle of the present invention, comprise the brushless electric machine special integrated circuit, the IGBT inversion unit, rotor position detection circuit, over-current detection circuit and power supply, over-current detection circuit detects the bus current signal and converts voltage signal Uf to delivers to the overcurrent input pin If that the brushless electric machine special integrated circuit is handled, rotor position detection circuit is input to the brushless electric machine special integrated circuit with the position signalling of rotor, brushless electric machine special integrated circuit output signal is to the IGBT inversion unit, the output of IGBT inversion unit connects the motor winding, the voltage signal Uf of over-current detection circuit output also is connected with amplifying circuit, the output of amplifying circuit is connected to the phase place advance angle input ANG of brushless electric machine special integrated circuit, between the phase place advance angle input ANG of the output of amplifying circuit and brushless electric machine special integrated circuit filtering circuit is set, filtering circuit is to adopt two-stage RC filtering circuit, comprise capacitor C 1, capacitor C 2, resistance R 2, resistance R 3, the brushless electric machine special integrated circuit is dc brushless motor special integrated circuit 6551 or 6854, amplifying circuit comprises operational amplifier IC1A, resistance R 4 and resistance R 5, resistance R 4 two ends are connected to the 1st pin and the 2nd pin of operational amplifier IC1A, the two ends of resistance R 5 are the 1st pin and the ground of operational amplifier IC1A respectively, the 3rd pin of operational amplifier IC1A is as signal input pin, between the voltage signal Uf of over-current detection circuit output and the 3rd pin of operational amplifier IC1A voltage stabilizing circuit is set, voltage stabilizing circuit comprises voltage-stabiliser tube D1, capacitor C 3 and resistance R 6, be connected resistance R 6 between the 3rd pin of voltage signal Uf and operational amplifier IC1A, voltage-stabiliser tube D1, capacitor C 3 backs in parallel one end ground connection, the 3rd pin of other end concatenation operation amplifier IC1A.
As shown in Figure 4; the A curve is the curve that voltage U f changes with bus current If; when bus current If allows maximum current If0 greater than current foldback circuit; dc brushless motor special integrated circuit control motor shuts down; at bus current If between 0 to If0; it is slow and unconspicuous that voltage U f changes, and therefore, can not directly insert the phase place advance angle input ANG of brushless electric machine special integrated circuit.
As shown in Figure 5, the B curve is the curve that voltage U (ANG) changes with bus current If, over-current detection circuit detects the voltage signal Uf of bus current and conversion output, voltage signal Uf handles through amplifying circuit, the voltage U (ANG) of the phase place advance angle input ANG of brushless electric machine special integrated circuit and the relation of bus current are near linear relationship, bus current changes slightly, significant change can appear in the voltage U (ANG) of the phase place advance angle input ANG of brushless electric machine special integrated circuit, thereby automatic control phase advance angle, adapt to different loads, the adjustable range of phase place advance angle is more widened, satisfy the many rotating speeds of motor, the requirement of the application of many power improves electric efficiency.
Claims (7)
1. DC brushless motor controller with automatic control phase advance angle, comprise the brushless electric machine special integrated circuit, the IGBT inversion unit, rotor position detection circuit, over-current detection circuit and power supply, over-current detection circuit detects the bus current signal and converts voltage signal (Uf) to delivers to the overcurrent input pin (If) that the brushless electric machine special integrated circuit is handled, rotor position detection circuit is input to the brushless electric machine special integrated circuit with the position signalling of rotor, brushless electric machine special integrated circuit output signal is to the IGBT inversion unit, the output of IGBT inversion unit connects the motor winding, it is characterized in that: the voltage signal (Uf) of over-current detection circuit output also is connected with amplifying circuit, and the output of amplifying circuit is connected to the phase place advance angle input (ANG) of brushless electric machine special integrated circuit.
2. a kind of DC brushless motor controller with automatic control phase advance angle according to claim 1 is characterized in that: between the phase place advance angle input (ANG) of the output of amplifying circuit and brushless electric machine special integrated circuit filtering circuit is set.
3. a kind of DC brushless motor controller with automatic control phase advance angle according to claim 1, it is characterized in that: the brushless electric machine special integrated circuit is dc brushless motor special integrated circuit 6551 or 6854.
4. a kind of DC brushless motor controller with automatic control phase advance angle according to claim 2 is characterized in that: filtering circuit is to adopt two-stage RC filtering circuit.
5. according to claim 1,2,3,4 described a kind of DC brushless motor controllers with automatic control phase advance angle, it is characterized in that: amplifying circuit comprises operational amplifier (IC1A), resistance (R4) and resistance (R5), resistance (R4) two ends are connected to the 1st pin and the 2nd pin of operational amplifier (IC1A), the two ends of resistance (R5) are the 1st pin and the ground of operational amplifier (IC1A) respectively, and the 3rd pin of operational amplifier (IC1A) is as signal input pin.
6. a kind of DC brushless motor controller with automatic control phase advance angle according to claim 5 is characterized in that: between the voltage signal (Uf) of over-current detection circuit output and the 3rd pin of operational amplifier (IC1A) voltage stabilizing circuit is set.
7. a kind of DC brushless motor controller with automatic control phase advance angle according to claim 6, it is characterized in that: voltage stabilizing circuit comprises voltage-stabiliser tube (D1), electric capacity (C3) and resistance (R6), be connected resistance (R6) between the 3rd pin of voltage signal (Uf) and operational amplifier (IC1A), voltage-stabiliser tube (D1), electric capacity (C3) back in parallel one end ground connection, the 3rd pin of other end concatenation operation amplifier (IC1A).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110457662.8A CN103187908B (en) | 2011-12-29 | 2011-12-29 | A kind of DC brushless motor controller with automatic control phase advance angle |
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| CN201110457662.8A CN103187908B (en) | 2011-12-29 | 2011-12-29 | A kind of DC brushless motor controller with automatic control phase advance angle |
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| CN103187908A true CN103187908A (en) | 2013-07-03 |
| CN103187908B CN103187908B (en) | 2016-03-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956940A (en) * | 2014-04-30 | 2014-07-30 | 广东威灵电机制造有限公司 | Against-wind start control method and device of direct current motor in outdoor unit of air conditioner |
| CN105375838A (en) * | 2015-11-12 | 2016-03-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Circuit and method for controlling phase of motor |
| CN105429098A (en) * | 2015-12-18 | 2016-03-23 | 埃泰克汽车电子(芜湖)有限公司 | Vehicle-mounted direct current motor driving chip overcurrent protection system |
| CN109067265A (en) * | 2018-08-20 | 2018-12-21 | 珠海格力电器股份有限公司 | Motor control method, control device and air conditioning equipment |
| CN109088578A (en) * | 2018-08-20 | 2018-12-25 | 珠海格力电器股份有限公司 | Motor control method and system and air conditioner |
| CN112701965A (en) * | 2020-12-17 | 2021-04-23 | 珠海格力电器股份有限公司 | Lead angle control method and device and permanent magnet motor |
| CN114499292A (en) * | 2022-04-18 | 2022-05-13 | 中山大洋电机股份有限公司 | Adaptive control method based on advance angle calculation of inductive brushless motor |
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| US4808902A (en) * | 1987-05-26 | 1989-02-28 | Kabushiki Kaisha Toshiba | Control apparatus for brush-less motor |
| CN1320297A (en) * | 1998-08-31 | 2001-10-31 | 株式会社日立制作所 | Controller for PWM/PAM motor and method for controlling air conditioner and motor having controller |
| JP2003348875A (en) * | 2002-05-27 | 2003-12-05 | Matsushita Electric Ind Co Ltd | Motor drive |
| CN1691490A (en) * | 2004-04-22 | 2005-11-02 | 日本电产芝浦株式会社 | Brushless DC motor driver |
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Patent Citations (4)
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|---|---|---|---|---|
| US4808902A (en) * | 1987-05-26 | 1989-02-28 | Kabushiki Kaisha Toshiba | Control apparatus for brush-less motor |
| CN1320297A (en) * | 1998-08-31 | 2001-10-31 | 株式会社日立制作所 | Controller for PWM/PAM motor and method for controlling air conditioner and motor having controller |
| JP2003348875A (en) * | 2002-05-27 | 2003-12-05 | Matsushita Electric Ind Co Ltd | Motor drive |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956940A (en) * | 2014-04-30 | 2014-07-30 | 广东威灵电机制造有限公司 | Against-wind start control method and device of direct current motor in outdoor unit of air conditioner |
| CN103956940B (en) * | 2014-04-30 | 2019-02-12 | 广东威灵电机制造有限公司 | The contrary wind starting control method and control device of direct current generator in air-conditioner outdoor unit |
| CN105375838A (en) * | 2015-11-12 | 2016-03-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Circuit and method for controlling phase of motor |
| CN105375838B (en) * | 2015-11-12 | 2018-02-06 | 珠海格力节能环保制冷技术研究中心有限公司 | The control circuit and method of motor phase |
| CN105429098A (en) * | 2015-12-18 | 2016-03-23 | 埃泰克汽车电子(芜湖)有限公司 | Vehicle-mounted direct current motor driving chip overcurrent protection system |
| CN109067265A (en) * | 2018-08-20 | 2018-12-21 | 珠海格力电器股份有限公司 | Motor control method, control device and air conditioning equipment |
| CN109088578A (en) * | 2018-08-20 | 2018-12-25 | 珠海格力电器股份有限公司 | Motor control method and system and air conditioner |
| CN109088578B (en) * | 2018-08-20 | 2020-06-30 | 珠海格力电器股份有限公司 | Motor control method and system and air conditioner |
| CN112701965A (en) * | 2020-12-17 | 2021-04-23 | 珠海格力电器股份有限公司 | Lead angle control method and device and permanent magnet motor |
| CN114499292A (en) * | 2022-04-18 | 2022-05-13 | 中山大洋电机股份有限公司 | Adaptive control method based on advance angle calculation of inductive brushless motor |
| CN114499292B (en) * | 2022-04-18 | 2022-07-15 | 中山大洋电机股份有限公司 | Adaptive control method based on advance angle calculation of inductive brushless motor |
| WO2023201979A1 (en) * | 2022-04-18 | 2023-10-26 | 中山大洋电机股份有限公司 | Adaptive control method based on angle-of-advance calculation for inductive brushless electric motor |
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| CN103187908B (en) | 2016-03-30 |
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