CN205596045U - Intelligence brushless DC motor control system for induction regulator - Google Patents
Intelligence brushless DC motor control system for induction regulator Download PDFInfo
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- CN205596045U CN205596045U CN201520951685.8U CN201520951685U CN205596045U CN 205596045 U CN205596045 U CN 205596045U CN 201520951685 U CN201520951685 U CN 201520951685U CN 205596045 U CN205596045 U CN 205596045U
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- 238000005259 measurement Methods 0.000 claims description 3
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- 230000033228 biological regulation Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 6
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Abstract
The utility model provides an intelligence brushless DC motor control system for induction regulator which characterized in that: this system includes MC33035 special control chip, hall sensor, electronic speed -determination unit, IGBT drive unit, inverter unit, rectifier unit, filter capacitance, control button and brushless DC motor, and it adopts brushless DC motor special control chip MC33035 rationally to control, and is with low costs, hall sensor 0 is high, can realize adjusting hall sensor 1 output is stable, linear according to the actual demand.
Description
Technical field
This utility model belongs to testing equipment and controls technical field, and a kind of especially intelligent-induction pressure regulator brshless DC motor controls technology and method.
Background technology
Induction voltage regulator is to utilize electromagnetic induction principle that by magnetic field induction, primary electric energy is fed to secondary, further through changing Stator and Rotor Windings axis relative angular displacement and specific connecting mode, make the electric equipment of smooth stepless continuous regulation in the scope that secondary load voltage can be the biggest.Induction voltage regulator is mainly used in the occasions such as electrical equipment and electrical test, electric furnace temperature control, supporting, the generator excitation of rectifying installation.Relying on manually or direct current generator during induction voltage regulator Voltage Cortrol, manual voltage regulation process operation is complicated, excessively rely on staff's experience, safety is low, and gradually direct current generator voltage regulating mode replaces.At present, induction voltage regulator direct current generator many employings DC source and catalyst directly control, and regulation precision is low, poor stability.
Summary of the invention
Utility model purpose:
This utility model provides a kind of intelligent-induction pressure regulator brushless DC motor control system and method, its objective is to solve the most existing problem.
Technical scheme:
nullA kind of intelligent-induction pressure regulator brushless DC motor control system，It is characterized in that: this system includes MC33035 special integrated circuit、Hall element、Electronic speed-determination unit、IGBT driver element、Inversion unit、Rectification unit、Filter capacitor、Control knob and brshless DC motor，Control knob 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，On the one hand brshless DC motor connects MC33035 special integrated circuit by current transformer and signal processing circuit，On the other hand brshless DC motor connects Hall element，Hall element connects electronic speed-determination 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 outfan of Hall element and the Brushless DC Motor Position signal input part (S of MC33035 special integrated circuitA、SB、SC) terminal and the speed calculation primary signal input (Φ of electronic speed-determination unitA、ΦB、ΦC )) be connected, the signal output part (5) of electronic speed-determination unit is connected with the error amplifier (12,13) of MC33035, the input of IGBT driver element and the top drive outfan (Ar, Br, Cr) of MC33035 and bottom drive output (AB、BB、CB) be connected, inversion unit composes in parallel 3 bridge circuits by 6 IGBT after being connected two-by-two, the control signal input (grid) of each IGBT of inversion unit is connected with the outfan of IGBT driver element, the two ends of inversion unit bridge circuit are connected with the outfan of rectification unit, filter capacitor positive and negative terminal is in parallel with the outfan positive and negative terminal of rectification unit, control knob controls port (3) with the Direct/Reverse of MC33035, energy port (7) during output, braking input port (23) selects port (22) to be connected with sensor, the three-phase windings of brshless DC motor respectively with the midpoint (junction point of two IGBT of three bridges of inversion unit, between collector and emitter) it is connected.
The measurement end of sensor is near rotor.
Utilize the method that above-mentioned intelligent-induction pressure regulator brushless DC motor control system is implemented, it is characterised 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 control instruction, drive the IGBT conducting in inverter circuit, threephase stator winding is energized；
(4) motor rotates, and drives induction voltage regulator regulation axle action by main shaft；
(5) position sensor feedback position and rate signal；
(6) MC33035 continues to send control instruction according to rotor-position, and MC33039 calculates motor speed simultaneously, and feeds back to MC33035；
(7) it is adjusted to required voltage when induction voltage regulator, sends brake signal and complete to MC33035, pressure regulation process.
Advantage and effect
This utility model is a kind of intelligent-induction pressure regulator brushless DC motor control system and method, it uses brshless DC motor special integrated circuit MC33035 to carry out conservative control, low cost, control accuracy are high, it is possible to realize, linear regulation stable to induction voltage regulator output according to the actual requirements.
Accompanying drawing explanation
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 the accompanying drawings this utility model is described further:
nullAs shown in the figure，The utility model proposes a kind of intelligent-induction pressure regulator brushless DC motor control system，This system includes MC33035 special integrated circuit、Hall element、Electronic speed-determination unit、IGBT driver element、Inversion unit、Rectification unit、Filter capacitor、Control knob and brshless DC motor，Control knob 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，On the one hand brshless DC motor connects MC33035 special integrated circuit by current transformer and signal processing circuit，On the other hand brshless DC motor connects Hall element，Hall element connects electronic speed-determination unit and MC33035 special integrated circuit，Electronic speed-determination unit connects MC33035 special integrated circuit.
This utility model patent intelligent-induction pressure regulator is with brushless DC motor control system structure chart as shown in Figure 1, MC33035 pin is as shown in Figure 2, Hall element output characteristics as it is shown on figure 3, Hall element spatial distribution map as shown in Figure 4, electronic speed-determination circuit diagram is as shown in Figure 5.Below in conjunction with the accompanying drawings the specific implementation process of patent is described in detail.
Wherein Hall element is fixed on brushless DC motor stator (the measurement end of sensor is near rotor), the outfan of Hall element and the Brushless DC Motor Position signal input part S of MC33035A、SB、SCThe speed calculation primary signal input Φ of terminal and electronic speed-determination unitA、ΦB、ΦCBeing connected, the signal output part 5 of electronic speed-determination unit is connected with the error amplifier 12,13 of MC33035, the input of IGBT driver element and top drive output terminals A r of MC33035, Br, Cr and bottom drive output AB、BB、CBIt is connected, inversion unit composes in parallel 3 bridge circuits by 6 IGBT after being connected two-by-two, the control signal input (grid) of each IGBT of inversion unit is connected with the outfan of IGBT driver element, the two ends of inversion unit bridge circuit are connected with the outfan of rectification unit, filter capacitor positive and negative terminal is in parallel with the outfan positive and negative terminal of rectification unit, control knob controls port 3 with the Direct/Reverse of MC33035, energy port 7 during output, braking input port 23 selects port 22 to be connected with sensor, the three-phase windings of brshless DC motor respectively with the midpoint (junction point of two IGBT of three bridges of inversion unit, between collector and emitter) it is connected.
Use latch Hall element as motor rotor position sensor, the output characteristics of Hall element is as shown in Figure 3, positive negative fluxfield is needed during Hall element work, magnetic field, one South Pole can make Hall element in the conduction state, Hall element will latch this state after opening, even if magnetic field is removed, also be always maintained at opening, until the arrival of a north magnetic field, it just can be made to turn off.After north magnetic field makes it turn off, Hall element will latch this state, even if magnetic field is removed, also will be always maintained at turning off, until the arrival of next South Pole positive flux field, Hall element just can be again turned on.According to motor internal magnetic distribution and Hall element characteristic, three Hall elements are fixed on Hall disc as shown in Figure 4, when control system powers on, Hall element exports low and high level according to the position of magnet steel, Master control chip judges motor rotor position according to low and high level signal, call the driving signal that internal processes output is correct, make motor start action.The change of motor corner therewith, the output of Hall element also changes, and MC33035 determines the turn-on sequence of IGBT according to the low and high level of Hall element, makes motor persistently rotate.
Velocity measuring chip connects circuit as shown in Figure 5.MC33039 is a high-performance closed speed control chip, is exclusively used in various brushless DC motor control system.Utilize MC33039 just can complete accurately speed controlling without special magnetically or optically tachometer.This chip comprise three input buffering, every road input buffering all with a chronotron to improve capacity of resisting disturbance, additionally, MC33039 is also with three digital signal edge detection devices, a monostable able to programme and an internal parallel actuator.MC33039 chip is often and MC33035 chip constitutes brushless motor controller.MC33039 can realize the control of brshless DC motor closed-loop speed by the means of a kind of low cost.MC33039 can be transformed into, directly by three square-wave input signals of three-phase brushless dc motor rotor-position sensor, the voltage signal being proportional to motor speed through F/V.Its 1,2,3 feet can receive three signals of motor position sensor, and through having delayed buffer circuit to suppress input noise, obtaining being equivalent to the signal of the most lower six pulses of every pair, motor again after inclusive-OR operation, then the monostable circuit (RT, CT) through external timing component causes CT to discharge.The dutycycle of the signal that MC33039 exports from 5 feet is relevant with the rotating speed of motor, and its DC component is directly proportional to rotating speed.When motor accelerates, the average voltage of output pulse sequence will rise, and this signal, after external low pass filter processes, i.e. can get the voltage that tests the speed being directly proportional to rotating speed.
Intelligent-induction pressure regulator brushless DC motor control system work process is described as follows:
(1) control system initializes, System self-test；
(2) gather Hall element signal, calculate motor rotor position；
(3) sending control instruction, drive the IGBT conducting in inverter circuit, threephase stator winding is energized；
(4) motor rotates, and drives induction voltage regulator regulation axle action by main shaft；
(5) position sensor feedback position and rate signal；
(6) MC33035 continues to send control instruction according to rotor-position, and MC33039 calculates motor speed simultaneously, and feeds back to MC33035；
(7) it is adjusted to required voltage when induction voltage regulator, sends brake signal and complete to MC33035, pressure regulation process.
Claims (3)
- null1. an intelligent-induction pressure regulator brushless DC motor control system，It is characterized in that: this system includes MC33035 special integrated circuit、Hall element、Electronic speed-determination unit、IGBT driver element、Inversion unit、Rectification unit、Filter capacitor、Control knob and brshless DC motor，Control knob 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，On the one hand brshless DC motor connects MC33035 special integrated circuit by current transformer and signal processing circuit，On the other hand brshless DC motor connects Hall element，Hall element connects electronic speed-determination unit and MC33035 special integrated circuit，Electronic speed-determination unit connects MC33035 special integrated circuit.
- Intelligent-induction pressure regulator brushless DC motor control system the most according to claim 1, it is characterized in that: Hall element is fixed on brushless DC motor stator, the outfan of Hall element and the Brushless DC Motor Position signal input part (S of MC33035 special integrated circuitA、SB、SC) terminal and the speed calculation primary signal input (Φ of electronic speed-determination unitA、ΦB、ΦC )) be connected, the signal output part (5) of electronic speed-determination unit is connected with the error amplifier (12,13) of MC33035, the input of IGBT driver element and the top drive outfan (Ar, Br, Cr) of MC33035 and bottom drive output (AB、BB、CB) be connected, inversion unit composes in parallel 3 bridge circuits by 6 IGBT after being connected two-by-two, the control signal input of each IGBT of inversion unit, i.e. grid is connected with the outfan of IGBT driver element, the two ends of inversion unit bridge circuit are connected with the outfan of rectification unit, filter capacitor positive and negative terminal is in parallel with the outfan positive and negative terminal of rectification unit, control knob controls port (3) with the Direct/Reverse of MC33035, energy port (7) during output, braking input port (23) selects port (22) to be connected with sensor, the three-phase windings of brshless DC motor midpoint with three bridges of inversion unit respectively is connected；The midpoint of three bridges of inversion unit is between the junction point of two IGBT, collector and emitter.
- Intelligent-induction pressure regulator brushless DC motor control system the most according to claim 2, it is characterised in that: the measurement end of sensor is near rotor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520951685.8U CN205596045U (en) | 2015-11-25 | 2015-11-25 | Intelligence brushless DC motor control system for induction regulator |
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| CN201520951685.8U CN205596045U (en) | 2015-11-25 | 2015-11-25 | Intelligence brushless DC motor control system for induction regulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610352A (en) * | 2015-11-25 | 2016-05-25 | 国家电网公司 | Brushless DC motor control system and method for intelligent induction regulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610352A (en) * | 2015-11-25 | 2016-05-25 | 国家电网公司 | Brushless DC motor control system and method for intelligent induction regulator |
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