CN107086832A - Ball mill QM driving control systems and startup method based on permagnetic synchronous motor - Google Patents
Ball mill QM driving control systems and startup method based on permagnetic synchronous motor Download PDFInfo
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- CN107086832A CN107086832A CN201710422659.XA CN201710422659A CN107086832A CN 107086832 A CN107086832 A CN 107086832A CN 201710422659 A CN201710422659 A CN 201710422659A CN 107086832 A CN107086832 A CN 107086832A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/0003—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/24—Driving mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
- H02P27/085—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The present invention discloses a kind of ball mill QM driving control systems based on permagnetic synchronous motor and starts method, the system is made up of rectification unit, buffer cell, filtering energy-storage units, inversion unit and control unit, the instruction that the inversion unit is sent according to control unit, the frequency of output voltage is controlled, so as to control the rotating speed and working condition of ball mill motor；Described control unit as the system brain, coordinate transform is carried out according to the three-phase output current detected, estimate rotor-position and speed, decomposite d axles and q shaft currents, pass through electric current loop and speed ring pi regulator, pwm control signal is exported, frequency, the phase and amplitude of output voltage are directly controlled, to control the rotating speed and working condition of ball mill motor.Relative to traditional induction machine system, the present invention can save 8% 15% energy, and because synchronous motor does not have excitation loss, rotor copper loss is with iron loss, therefore operational efficiency is higher, more energy efficient.
Description
Technical field
The present invention relates to ball mill technical field, more particularly to a kind of ball mill QM driving controls based on permagnetic synchronous motor
System processed and startup method.
Background technology
Ball mill is after material is broken, then the key equipment crushed.It is widely used in cement, silicate system
The production industry such as product, New Building Materials, refractory material, chemical fertilizer, black and non-ferrous metal ore and glass ceramics, to various ore deposits
Stone and other grindability materials carry out dry type or wet type grinding.Ball mill is applied to the various ores of grinding and other materials, wide
It is general to be used for ore dressing, the industry such as building materials and chemical industry.
Ball mill is made up of the cylinder of level, input and output material hollow shaft and mill first class sections, and cylinder is in long cylinder, cylinder
Equipped with abrasive body, cylinder is manufactured for steel plate, fixed with steel liner plate and cylinder, and abrasive body is generally steel ball, and by difference
Diameter and certain proportion are fitted into cylinder, and abrasive body can also use steel section.Selected according to the granularity of grinding material, material is by ball milling
Machine feed end hollow shaft loads in cylinder, when ball mill barrel is rotated, and abrasive body is due to inertia and centrifugal action, friction
The effect of power, makes it be attached on shell liner and is taken away by cylinder, when certain height is brought to, due to the gravity of itself
Act on and left, the abrasive body of whereabouts is smashed the material in cylinder as projectile.
Ball mill is typically run with fixed rotating speed, and the rotating speed of cylinder is by belt pulley or gear reduction (also useful liquid
Mechanical couple) determine.The rotating speed of ball mill directly influences the moving situation and the process of lapping of material of steel ball and material,
Under different rotating speeds, the moving situation of steel ball and material in cylinder is as shown in Figure 1：
When a, rotating speed are relatively low, steel ball and material rise with cylinder inboard wall, when the inclination angle of steel ball and material is equal to or more than certainly
During right inclination angle, slided along inclined-plane, form slope, when the inclination angle on slope reaches natural angle of repose, abrasive body is acted in gravity etc.
It is lower to be rolled down along slope, form a kind of state for being referred to as rushing down formula.In such state, material is mainly in abrasive body relative motion
It is crushed under the percussion of generation and abrasive action；
B, when drum's speed of rotation is higher, abrasive body is risen to after certain altitude with cylinder, is left.This state is referred to as
Leave formula.In such state, it is crushed under the percussion main when abrasive body leaves of material and partial mill effect.It is one
Plant relatively good action rotating speed；
If the rotating speed of c, cylinder is very high, due to the effect of centrifugal force, to cause material and steel ball no longer to depart from barrel, and
Rotated together with it, at this moment steel ball is to material without effect of impact, and grinding efficiency is then lower.The minimum speed of this state is referred to as
Critical speed.
The critical speed Nl of ball mill is：Ni=42.3/ √ D (r/min) (D is cylinder internal diameter), the optimal work of ball mill
Making rotating speed Nz is：Nz=0.765Nl (r/min), actual motion shows, the diameter and its loading of optimum operating speed and steel ball
Amount, armor shape, the factor such as the coefficient of friction between steel ball and armor are relevant.General optimum operating speed is usually critical turn
The 0.7~0.8 of speed, it is seen that rotating speed still has certain adjustable extent, but adjustable range is little.
Can be seen that ball mill from the working condition of ball mill has certain speed governing space, if the speed of controlled motor
Ball mill most of the time is set to be operated in (b) state, the time service of fraction not only improves the matter milled in (a) state
Amount and efficiency, and energy-conservation can be realized.
Principle of the principle of ball mill speed governing based on PMSM Speed：(wherein f is the frequency of power supply to n=60*f/p
Rate, p is the number of pole-pairs of motor), as can be seen from the above equation, change the frequency of power supply, it is possible to change the rotating speed of motor, from
And control the running status of ball mill.
The content of the invention
It is an object of the invention to provide a kind of ball mill QM driving control systems based on permagnetic synchronous motor and startup
Method.
Technical scheme is as follows：A kind of ball mill QM driving control systems based on permagnetic synchronous motor, by whole
Flow unit, buffer cell, filtering energy-storage units, inversion unit and control unit composition, the input connection of the rectification unit
Power network, the output end of the rectification unit is connected with the input of the buffer cell, the output end of the buffer cell and institute
The input connection of filtering energy-storage units is stated, the filtering energy-storage units include electrochemical capacitor, and the power network passes through the rectification
Unit, buffer cell charge to the electrochemical capacitor, the output end of the filtering energy-storage units and the input of the inversion unit
End connection, the output end of the inversion unit is connected with ball mill motor, the signal input part of described control unit and institute
State the signal output part connection of inversion unit, the signal input part of the signal output part of described control unit and the inversion unit
Connection, the instruction that the inversion unit is sent according to described control unit controls the frequency of output voltage, so as to control ball mill
The rotating speed and working condition of motor.
In the above-mentioned technical solutions, described control unit includes three-phase current detection module, coordinate transformation module, rotor position
Put and velocity estimation module, speed ring pi regulator, current control module, the first electric current loop pi regulator, the second electric current loop PI
Adjuster and PWM control modules, the input of the three-phase current detection module are connected with the output end of the inversion unit, institute
The output end for stating three-phase current detection module is connected with the input of the coordinate transformation module, the coordinate transformation module it is defeated
Go out end to be connected with the input of the rotor-position and velocity estimation module, the coordinate transformation module is according to the three-phase current
The three-phase output current that detection module is detected carries out coordinate transform, and rotor-position and the velocity estimation module estimates rotor
Position and speed simultaneously decomposite d shaft currents and q shaft currents, the rotor-position and velocity estimation by the coordinate transformation module
The output end of module is connected with the input of the speed ring pi regulator, the output end of the speed ring pi regulator with it is described
The input connection of current control module, the output end of the current control module is adjusted by the first electric current loop PI respectively
Device, the second electric current loop pi regulator are connected with the signal input part of the coordinate transformation module, the d shaft currents, q shaft currents point
Do not pass through the first electric current loop pi regulator and the second electric current loop pi regulator, the signal output part of the coordinate transformation module
Pwm control signal is exported to the signal input part of the inversion unit by the PWM control modules.
In the above-mentioned technical solutions, the rectification unit includes diode three-phase bridge rectification circuit, and the power network passes through
Three-phase 380V alternating currents are transformed into 530V direct currents by the diode three-phase bridge rectification circuit.
In the above-mentioned technical solutions, the buffer cell includes pre-charge resistance, and the pre-charge resistance is at upper electric initial stage
Give electrochemical capacitor charging.
In the above-mentioned technical solutions, the inversion unit is used as main switch device using insulated gate bipolar transistor IGBT
Part.
In the above-mentioned technical solutions, the signal output part of the inversion unit is connected with difference operational amplifying circuit, the output
Voltage is exported with three tunnels, and three road output voltage is defeated by entering the difference operational amplifying circuit after series resistance partial pressure respectively
Go out first voltage signal and second voltage signal.
In the above-mentioned technical solutions, the difference operational amplifying circuit uses difference amplifier TL082.
In the above-mentioned technical solutions, the first voltage signal and second voltage signal pass through the first operational amplifier respectively
With the second operational amplifier Shape correction into square-wave signal, the square-wave signal decays into the first quadrature square wave by buffer again
Signal and the second quadrature square wave signal are simultaneously sent to described control unit.
In the above-mentioned technical solutions, amplifier TL082 is respectively adopted in first operational amplifier and the second operational amplifier
And LM393, the buffer is using model MC74VHC.
A kind of startup method of the ball mill QM driving control systems based on permagnetic synchronous motor, comprises the following steps：
A, transmission enable signals to ball mill QM driving control systems；
B, ball mill QM driving control systems are run with 5Hz；
If the running current of c, ball mill QM driving control systems is more than 1.1 times of rated current, ball mill QM drive controls
System lock exports pulse, if the running current of ball mill QM driving control systems is less than rated current, is directly entered step f；
D, ball mill motor are freely shut down；
E, control panel carry out ball mill motor rotating speed and track current operation frequency；
F, 5Hz is lifted on the basis of current operation frequency；
G, until running frequency be equal to setpoint frequency；
H, ball mill QM driving control systems are run with setpoint frequency.
Using such scheme, the beneficial effects of the present invention are：A kind of ball milling based on permagnetic synchronous motor of the present invention
Machine QM driving control systems, are made up of, this is rectification unit, buffer cell, filtering energy-storage units, inversion unit and control unit
System carries the various defencive functions such as phase shortage, excessively stream, overload, overvoltage, under-voltage, excess temperature, short circuit, it is ensured that system is more safe and reliable,
The inversion unit uses " insulated gate bipolar transistor IGBT " as main switching device, the finger sent according to control unit
Order, controls the frequency of output voltage, so as to control the rotating speed and working condition of ball mill motor；Described control unit conduct
The brain of the system, carries out coordinate transform according to the three-phase output current detected, estimates rotor-position and speed, decomposite
D axles and q shaft currents, by electric current loop and speed ring pi regulator, export pwm control signal, directly control the frequency of output voltage
Rate, phase and amplitude, to control the rotating speed and working condition of ball mill motor.Relative to traditional induction machine system,
The present invention can save 8%-15% energy, and when loading light, energy-saving effect is more obvious, is not encouraged mainly due to synchronous motor
Magnetic loss, rotor copper loss is with iron loss, therefore operational efficiency is higher, more energy efficient.
Brief description of the drawings
Fig. 1 is the working state figure of ball mill；
Fig. 2 is a kind of structured flowchart of the ball mill QM driving control systems based on permagnetic synchronous motor of the present invention；
Fig. 3 is the operational efficiency comparison diagram of permagnetic synchronous motor and asynchronous machine；
Fig. 4 is a kind of flow of the startup method of the ball mill QM driving control systems based on permagnetic synchronous motor of the present invention
Figure；
Fig. 5 is the circuit diagram that driving plate rotating speed trace signals of the present invention are changed；
Fig. 6 is that control panel rotating speed of the present invention follows the trail of one of shaping circuit schematic diagram；
Fig. 7 is that control panel rotating speed of the present invention follows the trail of the two of shaping circuit schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Fig. 2 a kind of ball mill QM driving control systems based on permagnetic synchronous motor of the present invention, by rectification list
Member, buffer cell, filtering energy-storage units, inversion unit and control unit composition, the input connection power network of rectification unit, rectification
The output end of unit and the input of buffer cell are connected, and the output end and the input of filtering energy-storage units of buffer cell connect
Connect, filtering energy-storage units include electrochemical capacitor, power network is charged by rectification unit, buffer cell to electrochemical capacitor, filters energy storage
The output end of unit and the input of inversion unit are connected, and the output end of inversion unit is connected with ball mill motor, are controlled
The signal input part of unit and the signal output part of inversion unit are connected, the signal output part of control unit and the letter of inversion unit
The connection of number input.
Rectification unit：Its main function is that three-phase 380V alternating currents are transformed into using diode three-phase bridge rectification circuit
530V direct currents.
Buffer cell：Its function is the charging electricity of limitation electrochemical capacitor (dc bus) in a period of time of initial power-on
Stream, prevents electric current excessive, damages electrochemical capacitor.Its working mechanism is to give electrolysis electricity by pre-charge resistance in upper electricity a period of time
Capacity charge, when charging to a certain extent, makes contactor adhesive be shorted out resistance, normal operating conditions, by contactor to system
Power supply.
Filter energy-storage units：Main function is to filter DC ripple, stable electrochemical capacitor voltage, saves direct current energy.
Inversion unit：Using " insulated gate bipolar transistor IGBT " as main switching device, sent according to control unit
Instruction, control output voltage frequency, so as to control the rotating speed and working condition of ball mill motor.
Control unit：As the brain of system, coordinate transform is carried out according to the three-phase output current detected, estimates and turns
Sub- position and speed, decomposite d axles and q shaft currents, by electric current loop and speed ring pi regulator, export pwm control signal, directly
Frequency, the phase and amplitude of control output voltage are connect, to control the rotating speed and working condition of ball mill motor.
Control unit includes three-phase current detection module, coordinate transformation module, rotor-position and velocity estimation module, speed
Ring pi regulator, current control module, the first electric current loop pi regulator, the second electric current loop pi regulator and PWM control modules, three
The input of phase current sensing module and the output end of inversion unit are connected, and output end and the coordinate of three-phase current detection module become
The input connection of block is changed the mold, the output end of coordinate transformation module is connected with the input of rotor-position and velocity estimation module,
The three-phase output current that coordinate transformation module is detected according to three-phase current detection module carries out coordinate transform, rotor-position and speed
Degree estimation block estimates rotor-position and speed and decomposites d shaft currents and q shaft currents, rotor position by coordinate transformation module
Put and the output end of velocity estimation module be connected with the input of speed ring pi regulator, the output end of speed ring pi regulator with
The input connection of current control module, the output end of current control module passes through the first electric current loop pi regulator, second respectively
The signal input part connection of electric current loop pi regulator and coordinate transformation module, d shaft currents, q shaft currents pass through the first electric current respectively
Ring pi regulator and the second electric current loop pi regulator, the signal output part of coordinate transformation module export PWM by PWM control modules
Control signal to inversion unit signal input part.
It is well-known：Ball mill load weight, it is necessary to detent torque it is big.Ball mill is when doing system design, often motor
Type selecting all leaves certain surplus.Operation and efficiency curve of the ball mill with power permanent magnetic synchronous motor and asynchronous machine, such as Fig. 3
Shown, it can be seen that relative to traditional induction machine system, the present invention can save 8%-15% energy, when loading light, section
Energy effect is more obvious, does not have excitation loss mainly due to synchronous motor, rotor copper loss is with iron loss, therefore operational efficiency is more
Height, it is more energy efficient.
The startup method of ball mill QM driving control systems of the invention based on permagnetic synchronous motor, as shown in figure 4, including
Following steps：A, transmission enable signals to ball mill QM driving control systems；B, ball mill QM driving control systems are transported with 5Hz
OK；If the running current of c, ball mill QM driving control systems is more than 1.1 times of rated current, ball mill QM driving control systems envelope
Lock output pulse, if the running current of ball mill QM driving control systems is less than rated current, is directly entered step f；D, ball milling
Machine motor is freely shut down；E, control panel carry out ball mill motor rotating speed and track current operation frequency；F, current
5Hz is lifted on the basis of running frequency, so circulation；G, until running frequency be equal to setpoint frequency；H, ball mill QM driving control
System processed is run with setpoint frequency.So far, start completion.
The relay principle of ball mill QM driving control systems of the invention based on permagnetic synchronous motor, is exactly that rotating speed follows the trail of skill
Art, by detecting counter electromotive force frequency and the direction of ball mill motor, calculate ball mill motor current frequency and
Direction, then ball mill QM driving control systems directly run with current frequency, seamless connection current motor rotating speed is realized perfect
Relay.
The output of ball mill QM driving control systems is directly connected with ball mill motor, and rotating speed tracer technique needs to adopt
Collect frequency and the direction of counter electromotive force of motor, its principle is as shown in figure 5, three road output voltages of ball mill QM driving control systems
U, v, w, the three roads output voltage is respectively by series resistance partial pressure, and the signal output part of inversion unit is connected with difference amplifier electricity
Road, the voltage after decay enters difference amplifier TL082, difference amplifier TL082 output two-way voltage signals vuv and vvw.u、v、w
Voltage signal and vuv, vvw signal frequency are just the same, amplitude attenuation to original 1%, i.e. u, v, w1000v control source pair
Answer vuv, vvw10v voltage output.R41 ‖ R22==40.6K Ω, therefore vv1=≈ 1%.
The output voltage of ball mill QM driving control systems is 0~380v sinusoidal signals, and vuv, vvw amplitudes are corresponded to frequency
The 0-4v sinusoidal signals of rate.Vuv, vvw subordinate signal processing circuit are as shown in Figure 6 and Figure 7：
Vuv, vvw voltage signal are by two stage amplifer TL082 and LM393 Shape correction, and it is 4.5v's or so to become amplitude
Square-wave signal, is then decayed into 3v or so quadrature square wave signal PHUV and PHVW by buffer MC74VHC, is sent directly into master
Control chip DSP；Collection two-way quadrature square wave signal PHUV and PHVW purpose is to effectively recognize the direction of motor；Master control core
Frequencies and direction of the piece DSP according to PHUV and PHVW signals, directly control ball mill motor with " PHUV and PHVW frequency
And direction " run, seamless connection current motor rotating speed realizes perfect Velocity Pursuit.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Any modifications, equivalent substitutions and improvements made within principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of ball mill QM driving control systems based on permagnetic synchronous motor, it is characterised in that：It is single by rectification unit, buffering
Member, filtering energy-storage units, inversion unit and control unit composition, the input connection power network of the rectification unit, the rectification
The output end of unit is connected with the input of the buffer cell, the output end of the buffer cell and the filtering energy-storage units
Input connection, the filtering energy-storage units include electrochemical capacitor, and the power network given by the rectification unit, buffer cell
The electrochemical capacitor charging, the output end of the filtering energy-storage units is connected with the input of the inversion unit, the inversion
The output end of unit is connected with ball mill motor, the signal of the signal input part of described control unit and the inversion unit
Output end is connected, and the signal output part of described control unit is connected with the signal input part of the inversion unit, the inversion list
Member according to described control unit send instruction control output voltage frequency so that control ball mill motor rotating speed and
Working condition.
2. a kind of ball mill QM driving control systems based on permagnetic synchronous motor according to claim 1, its feature exists
In：Described control unit includes three-phase current detection module, coordinate transformation module, rotor-position and velocity estimation module, speed
Ring pi regulator, current control module, the first electric current loop pi regulator, the second electric current loop pi regulator and PWM control modules, institute
The input for stating three-phase current detection module is connected with the output end of the inversion unit, the three-phase current detection module it is defeated
Go out end to be connected with the input of the coordinate transformation module, the output end of the coordinate transformation module and the rotor-position and speed
The input connection of estimation block is spent, the three-phase that the coordinate transformation module is detected according to the three-phase current detection module is defeated
Go out electric current and carry out coordinate transform, rotor-position and the velocity estimation module estimates rotor-position and speed and sat by described
Mark conversion module decomposites d shaft currents and q shaft currents, output end and the speed of rotor-position and the velocity estimation module
The input connection of ring pi regulator, the output end of the speed ring pi regulator connects with the input of the current control module
Connect, the output end of the current control module passes through the first electric current loop pi regulator, the second electric current loop pi regulator respectively
It is connected with the signal input part of the coordinate transformation module, the d shaft currents, q shaft currents pass through first electric current loop respectively
Pi regulator and the second electric current loop pi regulator, the signal output part of the coordinate transformation module pass through the PWM control modules
Pwm control signal is exported to the signal input part of the inversion unit.
3. a kind of ball mill QM driving control systems based on permagnetic synchronous motor according to claim 1, its feature exists
In：The rectification unit includes diode three-phase bridge rectification circuit, and the power network passes through the diode three phase full bridge rectification
Three-phase 380V alternating currents are transformed into 530V direct currents by circuit.
4. a kind of ball mill QM driving control systems based on permagnetic synchronous motor according to claim 1, its feature exists
In：The buffer cell includes pre-charge resistance, and the pre-charge resistance charged at upper electric initial stage to the electrochemical capacitor.
5. a kind of ball mill QM driving control systems based on permagnetic synchronous motor according to claim 1, its feature exists
In：The inversion unit is used as main switching device using insulated gate bipolar transistor IGBT.
6. a kind of ball mill QM driving control systems based on permagnetic synchronous motor according to claim 1, its feature exists
In：The signal output part of the inversion unit is connected with difference operational amplifying circuit, and the output voltage is exported with three tunnels, and described three
Road output voltage exports first voltage signal and the second electricity by entering the difference operational amplifying circuit after series resistance partial pressure respectively
Press signal.
7. a kind of ball mill QM driving control systems based on permagnetic synchronous motor according to claim 6, its feature exists
In：The difference operational amplifying circuit uses difference amplifier TL082.
8. a kind of ball mill QM driving control systems based on permagnetic synchronous motor according to claim 6, its feature exists
In：The first voltage signal and second voltage signal respectively by the first operational amplifier and the second operational amplifier shaping at
Square-wave signal is managed into, the square-wave signal decays into the first quadrature square wave signal and the second quadrature square wave signal by buffer again
And it is sent to described control unit.
9. a kind of ball mill QM driving control systems based on permagnetic synchronous motor according to claim 8, its feature exists
In：Amplifier TL082 and LM393 is respectively adopted in first operational amplifier and the second operational amplifier, and the buffer is used
Model MC74VHC.
10. a kind of startup method of the ball mill QM driving control systems based on permagnetic synchronous motor, it is characterised in that including with
Lower step：
A, transmission enable signals to ball mill QM driving control systems；
B, ball mill QM driving control systems are run with 5Hz；
If the running current of c, ball mill QM driving control systems is more than 1.1 times of rated current, ball mill QM driving control systems
Block output pulse, if the running current of ball mill QM driving control systems is less than rated current, is directly entered step f；
D, ball mill motor are freely shut down；
E, control panel carry out ball mill motor rotating speed and track current operation frequency；
F, 5Hz is lifted on the basis of current operation frequency；
G, until running frequency be equal to setpoint frequency；
H, ball mill QM driving control systems are run with setpoint frequency.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155849A (en) * | 2018-02-28 | 2018-06-12 | 深圳市迈凯诺电气股份有限公司 | A kind of novel vertical shaft impact crusher drive system |
| CN108155851A (en) * | 2018-01-29 | 2018-06-12 | 深圳市德诚泰电气技术有限公司 | A kind of redundant actuation system based on permanent magnetism air compressor machine |
| CN108233811A (en) * | 2018-03-09 | 2018-06-29 | 核工业理化工程研究院 | Control method and control system without sensor type permanent magnet synchronous motor |
| CN108452895A (en) * | 2018-03-29 | 2018-08-28 | 佛山市华控电机科技有限公司 | A kind of ball grinder saving energy control method |
| CN113497458A (en) * | 2021-08-17 | 2021-10-12 | 深圳迈格瑞能技术有限公司 | TRT grid-connected power generation system based on turbine variable rotation speed |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402424A (en) * | 2002-06-25 | 2003-03-12 | 满永奎 | Frequency control method for frequency changer for pumping unit |
| CN101656508A (en) * | 2009-10-09 | 2010-02-24 | 卧龙电气集团股份有限公司 | Soft start method and soft start device for frequency conversion speed regulator of high-frequency vibration generator unit |
| CN201416980Y (en) * | 2009-03-16 | 2010-03-03 | 宁波德斯科电子科技有限公司 | Direct-current frequency-varying air-conditioning compressor intelligent controller and air-conditioner controlled by same |
| CN101860297A (en) * | 2010-05-25 | 2010-10-13 | 东南大学 | Permanent-magnet synchronous machine control system based on DSP (digital signal processor) control and method |
| CN103580453A (en) * | 2013-11-15 | 2014-02-12 | 深圳市易驱电气有限公司 | Frequency converter with rotating speed tracking function and rotating speed tracking method with the frequency converter |
| CN104069917A (en) * | 2014-07-01 | 2014-10-01 | 山东理工大学 | Ball mill impact force detection device and impact force detection and ball mill speed regulation method |
| CN104730317A (en) * | 2015-03-27 | 2015-06-24 | 武汉武新电气科技股份有限公司 | Output voltage and frequency detection circuit used for high-performance vector frequency converter |
| CN105634352A (en) * | 2014-11-07 | 2016-06-01 | 湖南南车时代电动汽车股份有限公司 | Generator controller overvoltage protection method and system |
| CN206211899U (en) * | 2016-11-30 | 2017-05-31 | 成都茂源科技有限公司 | A kind of ball mill direct drive permanent magnetic synchronous motor current transformer |
-
2017
- 2017-06-07 CN CN201710422659.XA patent/CN107086832A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402424A (en) * | 2002-06-25 | 2003-03-12 | 满永奎 | Frequency control method for frequency changer for pumping unit |
| CN201416980Y (en) * | 2009-03-16 | 2010-03-03 | 宁波德斯科电子科技有限公司 | Direct-current frequency-varying air-conditioning compressor intelligent controller and air-conditioner controlled by same |
| CN101656508A (en) * | 2009-10-09 | 2010-02-24 | 卧龙电气集团股份有限公司 | Soft start method and soft start device for frequency conversion speed regulator of high-frequency vibration generator unit |
| CN101860297A (en) * | 2010-05-25 | 2010-10-13 | 东南大学 | Permanent-magnet synchronous machine control system based on DSP (digital signal processor) control and method |
| CN103580453A (en) * | 2013-11-15 | 2014-02-12 | 深圳市易驱电气有限公司 | Frequency converter with rotating speed tracking function and rotating speed tracking method with the frequency converter |
| CN104069917A (en) * | 2014-07-01 | 2014-10-01 | 山东理工大学 | Ball mill impact force detection device and impact force detection and ball mill speed regulation method |
| CN105634352A (en) * | 2014-11-07 | 2016-06-01 | 湖南南车时代电动汽车股份有限公司 | Generator controller overvoltage protection method and system |
| CN104730317A (en) * | 2015-03-27 | 2015-06-24 | 武汉武新电气科技股份有限公司 | Output voltage and frequency detection circuit used for high-performance vector frequency converter |
| CN206211899U (en) * | 2016-11-30 | 2017-05-31 | 成都茂源科技有限公司 | A kind of ball mill direct drive permanent magnetic synchronous motor current transformer |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155851A (en) * | 2018-01-29 | 2018-06-12 | 深圳市德诚泰电气技术有限公司 | A kind of redundant actuation system based on permanent magnetism air compressor machine |
| CN108155849A (en) * | 2018-02-28 | 2018-06-12 | 深圳市迈凯诺电气股份有限公司 | A kind of novel vertical shaft impact crusher drive system |
| CN108233811A (en) * | 2018-03-09 | 2018-06-29 | 核工业理化工程研究院 | Control method and control system without sensor type permanent magnet synchronous motor |
| CN108233811B (en) * | 2018-03-09 | 2023-08-01 | 核工业理化工程研究院 | Control method and control system of sensorless permanent magnet synchronous motor |
| CN108452895A (en) * | 2018-03-29 | 2018-08-28 | 佛山市华控电机科技有限公司 | A kind of ball grinder saving energy control method |
| CN108452895B (en) * | 2018-03-29 | 2020-04-03 | 佛山市华控电机科技有限公司 | Energy-saving control method for ball mill |
| CN113497458A (en) * | 2021-08-17 | 2021-10-12 | 深圳迈格瑞能技术有限公司 | TRT grid-connected power generation system based on turbine variable rotation speed |
| CN113497458B (en) * | 2021-08-17 | 2022-04-01 | 深圳迈格瑞能技术有限公司 | TRT grid-connected power generation system based on turbine variable rotation speed |
| CN114832936A (en) * | 2022-04-25 | 2022-08-02 | 醴陵千汇实业有限公司 | Variable speed control system of ball mill |
| CN114832936B (en) * | 2022-04-25 | 2023-05-30 | 醴陵千汇实业有限公司 | Ball mill variable speed control system |
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Application publication date: 20170822 |