CN105610352A - Brushless DC motor control system and method for intelligent induction regulator - Google Patents
Brushless DC motor control system and method for intelligent induction regulator Download PDFInfo
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- CN105610352A CN105610352A CN201510828989.XA CN201510828989A CN105610352A CN 105610352 A CN105610352 A CN 105610352A CN 201510828989 A CN201510828989 A CN 201510828989A CN 105610352 A CN105610352 A CN 105610352A
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Abstract
The invention relates to a brushless DC motor control system for an intelligent induction regulator. The system is characterized by comprising a special-purposed control chip MC33035, a Hall sensor, an electronic speed measurement unit, an IGBT driving unit, an inversion unit, a rectification unit, a filtering capacitor, a control button and a brushless DC motor. The special-purposed control chip MC33035 for the brushless DC motor is used for reasonable control, so that the cost is low, the control precision is high, and output of the induction regulator can be adjusted stably and linearly according to practical requirements.
Description
Technical field
The invention belongs to testing equipment control technology field, and a kind of especially intelligent-induction pressure regulator brshless DC motor control technology and method.
Background technology
Induction voltage regulator is to utilize electromagnetic induction principle that elementary electric energy is fed to secondary by magnetic field induction, again by changing rotor winding axis relative angular displacement and specific connecting mode, make secondary load voltage can scope larger under electriferous state in the electric equipment that regulates of level and smooth stepless continuous. Induction voltage regulator is mainly used in the occasions such as electrical equipment and electrical test, electric furnace temperature control, rectifying installation are supporting, generator excitation. When induction voltage regulator voltage is adjusted, rely on manually or direct current generator, manual voltage regulation process operation complexity, too rely on staff's experience, security is low, direct current generator voltage regulating mode replaces gradually. At present, induction voltage regulator adopts dc source and contactor directly to control with direct current generator more, and pressure regulation precision is low, poor stability.
Summary of the invention
Goal of the invention:
The invention provides a kind of intelligent-induction pressure regulator brushless DC motor control system and method, its objective is solution existing problem in the past.
Technical scheme:
A kind of intelligent-induction pressure regulator brushless DC motor control system, it is characterized in that: this system comprises MC33035 special integrated circuit, Hall element, electronic speed-determination unit, IGBT driver element, inversion unit, rectification unit, filter capacitor, control button and brshless DC motor, control button connects MC33035 special integrated circuit, MC33035 special integrated circuit connects IGBT driver element, IGBT driver element connects inversion unit, inversion unit connects brshless DC motor, rectification unit connects electrical network and filter capacitor, filter capacitor connects inversion unit, brshless DC motor is connected MC33035 special integrated circuit on the one hand with signal processing circuit by current transformer, brshless DC motor connects Hall element on the other hand, Hall element connecting electronic test the speed unit and MC33035 special integrated circuit, electronic speed-determination unit connects MC33035 special integrated circuit.
Hall element is fixed on brushless DC motor stator, the Brushless DC Motor Position signal input part (S of the output of Hall element and MC33035 special integrated circuitA、SB、SC) speed of terminal and electronic speed-determination unit calculates primary signal input (ΦA、ΦB、ΦC）) be connected, the error amplifier (12,13) of the signal output part (5) of electronic speed-determination unit and MC33035 is connected, top drive output (Ar, Br, Cr) and the bottom drive output (A of the input of IGBT driver element and MC33035B、BB、CB) be connected, inversion unit composes in parallel 3 bridge circuits after being connected between two by 6 IGBT, the control signal input (grid) of each IGBT of inversion unit is connected with the output of IGBT driver element, the two ends of inversion unit bridge circuit are connected with the output of rectification unit, the output positive and negative terminal of filter capacitor positive and negative terminal and rectification unit is in parallel, the Direct/Reverse control port (3) of control button and MC33035, energy port (7) when output, braking input port (23) selects port (22) to be connected with sensor, three phase windings of brshless DC motor respectively with the mid point (tie point of two IGBT of three bridges of inversion unit, between collector and emitter) be connected.
The measuring junction of sensor is near rotor.
The method of utilizing above-mentioned intelligent-induction pressure regulator to implement with brushless DC motor control system, is characterized in that: the method step is as follows:
(1) control system initializes, System self-test;
(2) gather Hall element signal, calculate motor rotor position;
(3) sending controling instruction, drives the IGBT conducting in inverter circuit, the energising of threephase stator winding;
(4) motor rotation, drives the action of induction voltage regulator regulating shaft by main shaft;
(5) position sensor feedback position and rate signal;
(6) MC33035 continues sending controling instruction according to rotor-position, and MC33039 calculates motor speed simultaneously, and feeds back to MC33035;
(7) when induction voltage regulator is adjusted to required voltage, send brake signal to MC33035, pressure regulation process completes.
Advantage and effect
The present invention is a kind of intelligent-induction pressure regulator brushless DC motor control system and method, it adopts brshless DC motor special integrated circuit MC33035 rationally to control, cost is low, control accuracy is high, can realize according to the actual requirements induction voltage regulator stable output, linear regulation. .
Brief description of the drawings
Fig. 1 is intelligent-induction pressure regulator brushless DC motor control system structure chart;
Fig. 2 is MC33035 pinouts
Fig. 3 Hall element output characteristics;
Fig. 4 is Hall element spatial distribution map;
Fig. 5 is electronic speed-determination circuit diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in the figure, the present invention proposes a kind of intelligent-induction pressure regulator brushless DC motor control system, this system comprises MC33035 special integrated circuit, Hall element, electronic speed-determination unit, IGBT driver element, inversion unit, rectification unit, filter capacitor, control button and brshless DC motor, control button connects MC33035 special integrated circuit, MC33035 special integrated circuit connects IGBT driver element, IGBT driver element connects inversion unit, inversion unit connects brshless DC motor, rectification unit connects electrical network and filter capacitor, filter capacitor connects inversion unit, brshless DC motor is connected MC33035 special integrated circuit on the one hand with signal processing circuit by current transformer, brshless DC motor connects Hall element on the other hand, Hall element connecting electronic test the speed unit and MC33035 special integrated circuit, electronic speed-determination unit connects MC33035 special integrated circuit.
Patent intelligent-induction pressure regulator of the present invention is used brushless DC motor control system structure chart as shown in Figure 1, MC33035 pin as shown in Figure 2, Hall element output characteristics as shown in Figure 3, Hall element spatial distribution map as shown in Figure 4, electronic speed-determination circuit diagram as shown in Figure 5, is elaborated to the specific implementation process of patent below in conjunction with accompanying drawing.
Wherein Hall element is fixed on (measuring junction of sensor is near rotor) on brushless DC motor stator, the Brushless DC Motor Position signal input part S of the output of Hall element and MC33035A、SB、SCThe speed of terminal and electronic speed-determination unit is calculated primary signal input ΦA、ΦB、ΦCBe connected, the signal output part 5 of electronic speed-determination unit and the error amplifier of MC33035 12,13 are connected, top drive output terminals A r, Br, Cr and the bottom drive output A of the input of IGBT driver element and MC33035B、BB、CBBe connected, inversion unit composes in parallel 3 bridge circuits after being connected between two by 6 IGBT, the control signal input (grid) of each IGBT of inversion unit is connected with the output of IGBT driver element, the two ends of inversion unit bridge circuit are connected with the output of rectification unit, the output positive and negative terminal of filter capacitor positive and negative terminal and rectification unit is in parallel, the Direct/Reverse control port 3 of control button and MC33035, energy port 7 when output, braking input port 23 selects port 22 to be connected with sensor, three phase windings of brshless DC motor respectively with the mid point (tie point of two IGBT of three bridges of inversion unit, between collector and emitter) be connected.
Adopt latch Hall element as motor rotor position sensor, the output characteristics of Hall element as shown in Figure 3, when Hall element work, need positive negative fluxfield, magnetic field, a South Pole can make Hall element in conducting state, Hall element open after by this state of latch, even magnetic field is removed, also stay open always, until the arrival in magnetic field, an arctic just can make it turn-off. After magnetic field, the arctic makes its shutoff, Hall element, by this state of latch, even magnetic field is removed, also will keep turn-offing always, until the arrival of next South Pole positive flux field, Hall element could be opened again. According to motor internal electromagnetic field distribute and Hall element characteristic by three Hall elements by being fixed on shown in Fig. 4 on Hall disc, in the time that control system powers on, Hall element is according to the position output low and high level of magnet steel, Master control chip judges motor rotor position according to low and high level signal, call internal processes and export correct driving signal, make motor start action. The variation of motor corner thereupon, the output of Hall element also changes, and MC33035 determines the conducting order of IGBT according to the low and high level of Hall element, make motor continue rotation.
Speed detection chip connecting circuit as shown in Figure 5. MC33039 is a high-performance closed-loop speed control chip, is exclusively used in various brushless DC motor control systems. Utilize MC33039 just can complete accurately speed control without special magnetic or optical tachometers. This chip comprises three input bufferings, every road input buffering all with a delayer to improve antijamming capability, in addition, MC33039 is also with three digital signal edge detection devices, a monostable able to programme and an internal parallel adjuster. MC33039 chip normal with MC33035 chip formation brushless motor controller. MC33039 can realize by a kind of means cheaply the control of brshless DC motor closed-loop speed. MC33039 can, directly by three square-wave input signals of three-phase brushless dc motor rotor-position sensor, be transformed into the voltage signal that is proportional to motor speed through F/V. Its 1,2,3 pin can receive three signals of motor position sensor, and suppress input noise through the buffer circuit that has hysteresis, after inclusive-OR operation, obtain being equivalent to again the signal of every pair of extremely lower six pulses of motor, then cause CT electric discharge through the monostable circuit (RT, CT) of external timing component. MC33039 is relevant with the rotating speed of motor from the dutycycle of signal of 5 pin outputs, and its DC component is directly proportional to rotating speed. In the time that motor accelerates, the average voltage of output pulse sequence will rise, and this signal, after external low pass filter is processed, can obtain the voltage that tests the speed being directly proportional to rotating speed.
Intelligent-induction pressure regulator is described below by the brushless DC motor control system course of work:
(1) control system initializes, System self-test;
(2) gather Hall element signal, calculate motor rotor position;
(3) sending controling instruction, drives the IGBT conducting in inverter circuit, the energising of threephase stator winding;
(4) motor rotation, drives the action of induction voltage regulator regulating shaft by main shaft;
(5) position sensor feedback position and rate signal;
(6) MC33035 continues sending controling instruction according to rotor-position, and MC33039 calculates motor speed simultaneously, and feeds back to MC33035;
(7) when induction voltage regulator is adjusted to required voltage, send brake signal to MC33035, pressure regulation process completes.
Claims (4)
1. an intelligent-induction pressure regulator brushless DC motor control system, it is characterized in that: this system comprises MC33035 special integrated circuit, Hall element, electronic speed-determination unit, IGBT driver element, inversion unit, rectification unit, filter capacitor, control button and brshless DC motor, control button connects MC33035 special integrated circuit, MC33035 special integrated circuit connects IGBT driver element, IGBT driver element connects inversion unit, inversion unit connects brshless DC motor, rectification unit connects electrical network and filter capacitor, filter capacitor connects inversion unit, brshless DC motor is connected MC33035 special integrated circuit on the one hand with signal processing circuit by current transformer, brshless DC motor connects Hall element on the other hand, Hall element connecting electronic test the speed unit and MC33035 special integrated circuit, electronic speed-determination unit connects MC33035 special integrated circuit.
2. intelligent-induction pressure regulator brushless DC motor control system according to claim 1, it is characterized in that: Hall element is fixed on brushless DC motor stator the Brushless DC Motor Position signal input part (S of the output of Hall element and MC33035 special integrated circuitA、SB、SC) speed of terminal and electronic speed-determination unit calculates primary signal input (ΦA、ΦB、ΦC）) be connected, the error amplifier (12,13) of the signal output part (5) of electronic speed-determination unit and MC33035 is connected, top drive output (Ar, Br, Cr) and the bottom drive output (A of the input of IGBT driver element and MC33035B、BB、CB) be connected, inversion unit composes in parallel 3 bridge circuits after being connected between two by 6 IGBT, the control signal input (grid) of each IGBT of inversion unit is connected with the output of IGBT driver element, the two ends of inversion unit bridge circuit are connected with the output of rectification unit, the output positive and negative terminal of filter capacitor positive and negative terminal and rectification unit is in parallel, the Direct/Reverse control port (3) of control button and MC33035, energy port (7) when output, braking input port (23) selects port (22) to be connected with sensor, three phase windings of brshless DC motor respectively with the mid point (tie point of two IGBT of three bridges of inversion unit, between collector and emitter) be connected.
3. intelligent-induction pressure regulator brushless DC motor control system according to claim 2, is characterized in that: the measuring junction of sensor is near rotor.
4. the method for utilizing the intelligent-induction pressure regulator described in claim 1 to implement with brushless DC motor control system, is characterized in that: the method step is as follows:
(1) control system initializes, System self-test;
(2) gather Hall element signal, calculate motor rotor position;
(3) sending controling instruction, drives the IGBT conducting in inverter circuit, the energising of threephase stator winding;
(4) motor rotation, drives the action of induction voltage regulator regulating shaft by main shaft;
(5) position sensor feedback position and rate signal;
(6) MC33035 continues sending controling instruction according to rotor-position, and MC33039 calculates motor speed simultaneously, and feeds back to MC33035;
(7) when induction voltage regulator is adjusted to required voltage, send brake signal to MC33035, pressure regulation process completes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510828989.XA CN105610352A (en) | 2015-11-25 | 2015-11-25 | Brushless DC motor control system and method for intelligent induction regulator |
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| CN201510828989.XA CN105610352A (en) | 2015-11-25 | 2015-11-25 | Brushless DC motor control system and method for intelligent induction regulator |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6353299B1 (en) * | 1999-10-19 | 2002-03-05 | Fasco Industries, Inc. | Control algorithm for brushless DC motor/blower system |
| JP2002136172A (en) * | 2000-10-20 | 2002-05-10 | Daikin Ind Ltd | Control method and control apparatus for brushless dc motor |
| CN102957369A (en) * | 2012-11-20 | 2013-03-06 | 无锡商业职业技术学院 | Brushless DC (Direct Current) motor speed regulation device on basis of DSP (Digital Signal Processor) |
| CN204156769U (en) * | 2014-11-14 | 2015-02-11 | 南京信息工程大学 | A kind of brushless direct current motor controller |
| CN205596045U (en) * | 2015-11-25 | 2016-09-21 | 国家电网公司 | Intelligence brushless DC motor control system for induction regulator |
-
2015
- 2015-11-25 CN CN201510828989.XA patent/CN105610352A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6353299B1 (en) * | 1999-10-19 | 2002-03-05 | Fasco Industries, Inc. | Control algorithm for brushless DC motor/blower system |
| JP2002136172A (en) * | 2000-10-20 | 2002-05-10 | Daikin Ind Ltd | Control method and control apparatus for brushless dc motor |
| CN102957369A (en) * | 2012-11-20 | 2013-03-06 | 无锡商业职业技术学院 | Brushless DC (Direct Current) motor speed regulation device on basis of DSP (Digital Signal Processor) |
| CN204156769U (en) * | 2014-11-14 | 2015-02-11 | 南京信息工程大学 | A kind of brushless direct current motor controller |
| CN205596045U (en) * | 2015-11-25 | 2016-09-21 | 国家电网公司 | Intelligence brushless DC motor control system for induction regulator |
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Application publication date: 20160525 |
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