CN208739047U - A kind of miniature sine wave three-phase brushless dc motor water pump controller - Google Patents
A kind of miniature sine wave three-phase brushless dc motor water pump controller Download PDFInfo
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- CN208739047U CN208739047U CN201821593040.1U CN201821593040U CN208739047U CN 208739047 U CN208739047 U CN 208739047U CN 201821593040 U CN201821593040 U CN 201821593040U CN 208739047 U CN208739047 U CN 208739047U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims abstract description 46
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000009466 transformation Effects 0.000 description 7
- 238000004804 winding Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
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Abstract
The utility model discloses a kind of miniature sine wave three-phase brushless dc motor water pump controllers, it include: MCU algorithm and control processing circuit and the pressure stabilizing and DC bus voltage detection circuit that are attached thereto, circuit inside and out sampling current enhanced processing MCU, three-phase drive, inversion and current of electric sample circuit, wherein the MCU algorithm and control processing circuit include control chip IC 1, resistance R1, inductance LS1, capacitor C5, capacitor C6, diode VD1, diode VD2；Wherein resistance R1 and diode VD1 are arranged in parallel, and the two one end is connect with the 7th foot of the control chip IC 1, and the other end is connect with inductance LS1 and capacitor C5；Capacitor C6, diode VD2 are arranged in parallel, and the two one end is connect with the 9th foot of the control chip IC 1, other end ground connection；The control chip IC 1 is that STSPIN32F0 controls chip.
Description
Technical field
The utility model relates to water pump control technology fields, particularly relate to a kind of miniature sine wave three-phase brushless direct current
Motor and water pump controller.
Background technique
Traditional miniature brushless direct-current motor water pump, is generally used square wave control circuit, and this control mode is simple, easy
In control, but since stator current and air-gap flux are square wave, so torque pulsation is larger, noise is high, motor control is imitated
Rate is not high.And the support on hardware can be provided for the solution of the above problem currently without a kind of effective circuit structure.
Therefore, the inventor of the utility model needs to conceive a kind of new technology to improve its problem.
Utility model content
The utility model is intended to provide a kind of miniature sine wave three-phase brushless dc motor water pump controller, above-mentioned to solve
Problem provides the support on hardware.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of miniature sine wave three-phase brushless dc motor water pump controller, comprising: MCU algorithm and control processing circuit and
The pressure stabilizing and DC bus voltage detection circuit being attached thereto, circuit inside and out sampling current enhanced processing MCU, three-phase drive
Dynamic, inversion and current of electric sample circuit, wherein the MCU algorithm and control processing circuit include control chip IC 1, resistance
R1, inductance LS1, capacitor C5, capacitor C6, diode VD1, diode VD2；Wherein resistance R1 and diode VD1 are arranged in parallel, and two
Person one end is connect with the 7th foot of the control chip IC 1, and the other end is connect with inductance LS1 and capacitor C5；Capacitor C6, diode
VD2 is arranged in parallel, and the two one end is connect with the 9th foot of the control chip IC 1, other end ground connection；The control chip IC 1
Chip is controlled for STSPIN32F0.
Preferably, the three-phase drive, inversion and current of electric sample circuit include that power output element VS1, power are defeated
Element VS2, power output element VS3, power output element VS4, power output element VS5, power output element VS6, electricity out
R36, resistance R37, resistance R41, resistance R42, resistance R46, resistance R47 are hindered, wherein power output element VS1 is successively defeated with power
Be grounded after element VS6, resistance R37 connection out, the first foot of power output element VS6 by after resistance R36 with control chip IC 1
The 36th foot connection；Power output element VS2 is grounded after successively connecting with power output element VS5, resistance R42, power
The first foot of output element VS5 is connect after passing through resistance R41 with the 32nd foot of control chip IC 1；Power output element VS3
It is grounded after successively being connect with power output element VS4, resistance R47, the first foot of power output element VS5 passes through after resistance R46
It is connect with the 20th octal of control chip IC 1.
Preferably, the pressure stabilizing and DC bus voltage detection circuit include voltage stabilizing chip IC2, resistance R4, resistance R6, two poles
Pipe VD4, inductance LS2, capacitor C14, capacitor C15, wherein the first pin of the voltage stabilizing chip IC2 successively passes through resistance R4, electricity
It is connect after resistance R6 with the 19th foot of control chip IC 1；The second pin and diode VD4, inductance of the voltage stabilizing chip IC2
LS2 connection；Capacitor C14, capacitor C15 are arranged in parallel, and the two one end is connect with inductance LS2, other end ground connection.
Preferably, the pressure stabilizing and DC bus voltage detection circuit further include voltage stabilizing chip IC3, capacitor C17, capacitor C18,
Capacitor C19, resistance R7, diode DL2, fuse FU1, wherein the first pin of the capacitor C17 and voltage stabilizing chip IC3 connects
It connects, capacitor C18, capacitor C19 are arranged in parallel, and the two one end is connect with the third pin of voltage stabilizing chip IC3, the other end and diode
DL2 connection；One end of fuse FU1 is connect with the third pin of voltage stabilizing chip IC3, and the other end is connect with resistance R7.
Preferably, power output element VS1, power output element VS2, power output element VS3, power output element
VS4, power output element VS5, power output element VS6 are N-channel MOS FET pipe STL90N6F7.
Preferably, the voltage stabilizing chip IC2 is LM2596HVS-12/ADJ.
Preferably, the voltage stabilizing chip IC3 is 78M05 voltage stabilizing chip.
By adopting the above technical scheme, the utility model include at least it is following the utility model has the advantages that
Miniature sine wave three-phase brushless dc motor water pump controller described in the utility model, subtracts using torque pulsation
Small, it is lower to start and run noise, and power utilization is high.
Detailed description of the invention
Fig. 1 is MCU algorithm described in the utility model and the circuit diagram for controlling processing circuit；
Fig. 2 a is the partial circuit schematic diagram of pressure stabilizing described in the utility model and DC bus voltage detection circuit；
Fig. 2 b is the partial circuit schematic diagram of pressure stabilizing described in the utility model and DC bus voltage detection circuit；
Fig. 3 a is the partial circuit principle of circuit inside and out sampling current enhanced processing MCU described in the utility model
Figure；
Fig. 3 b is the partial circuit principle of circuit inside and out sampling current enhanced processing MCU described in the utility model
Figure；
Fig. 3 c is the partial circuit principle of circuit inside and out sampling current enhanced processing MCU described in the utility model
Figure；
Fig. 4 a be it is described in the utility model operation, direction external control interface circuit partial circuit schematic diagram；
Fig. 4 b be it is described in the utility model operation, direction external control interface circuit partial circuit schematic diagram；
Fig. 5 a is the partial circuit schematic diagram of motor interface described in the utility model and input power processing circuit；
Fig. 5 b is the partial circuit schematic diagram of motor interface described in the utility model and input power processing circuit；
Fig. 6 a is the partial circuit principle of three-phase drive described in the utility model, inversion and current of electric sample circuit
Figure；
Fig. 6 b is the partial circuit principle of three-phase drive described in the utility model, inversion and current of electric sample circuit
Figure；
Fig. 6 c is the partial circuit principle of three-phase drive described in the utility model, inversion and current of electric sample circuit
Figure.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Fig. 1 to Fig. 6 c, for a kind of miniature sine wave three-phase brushless dc motor water pump for meeting the utility model
Controller, comprising: MCU algorithm and control processing circuit and the pressure stabilizing and DC bus voltage detection circuit that are attached thereto, sampling electricity
Flow circuit inside and out enhanced processing MCU, operation, direction external control interface circuit, motor interface and input power processing
Circuit, three-phase drive, inversion and current of electric sample circuit, wherein the MCU algorithm and control processing circuit include control core
Piece IC1, resistance R1, inductance LS1, capacitor C5, capacitor C6, diode VD1, diode VD2；Wherein resistance R1 and diode VD1
It is arranged in parallel, the two one end is connect with the 7th foot of the control chip IC 1, and the other end is connect with inductance LS1 and capacitor C5；Electricity
Appearance C6, diode VD2 are arranged in parallel, and the two one end is connect with the 9th foot of the control chip IC 1, other end ground connection；It is described
Controlling chip IC 1 is that STSPIN32F0 controls chip.
Preferably, the three-phase drive, inversion and current of electric sample circuit include that power output element VS1, power are defeated
Element VS2, power output element VS3, power output element VS4, power output element VS5, power output element VS6, electricity out
R36, resistance R37, resistance R41, resistance R42, resistance R46, resistance R47 are hindered, wherein power output element VS1 is successively defeated with power
Be grounded after element VS6, resistance R37 connection out, the first foot of power output element VS6 by after resistance R36 with control chip IC 1
The 36th foot connection；Power output element VS2 is grounded after successively connecting with power output element VS5, resistance R42, power
The first foot of output element VS5 is connect after passing through resistance R41 with the 32nd foot of control chip IC 1；Power output element VS3
It is grounded after successively being connect with power output element VS4, resistance R47, the first foot of power output element VS5 passes through after resistance R46
It is connect with the 20th octal of control chip IC 1.
Preferably, the pressure stabilizing and DC bus voltage detection circuit include voltage stabilizing chip IC2, resistance R4, resistance R6, two poles
Pipe VD4, inductance LS2, capacitor C14, capacitor C15, wherein the first pin of the voltage stabilizing chip IC2 successively passes through resistance R4, electricity
It is connect after resistance R6 with the 19th foot of control chip IC 1；The second pin and diode VD4, inductance of the voltage stabilizing chip IC2
LS2 connection；Capacitor C14, capacitor C15 are arranged in parallel, and the two one end is connect with inductance LS2, other end ground connection.
Preferably, the pressure stabilizing and DC bus voltage detection circuit further include voltage stabilizing chip IC3, capacitor C17, capacitor C18,
Capacitor C19, resistance R7, diode DL2, fuse FU1, wherein the first pin of the capacitor C17 and voltage stabilizing chip IC3 connects
It connects, capacitor C18, capacitor C19 are arranged in parallel, and the two one end is connect with the third pin of voltage stabilizing chip IC3, the other end and diode
DL2 connection；One end of fuse FU1 is connect with the third pin of voltage stabilizing chip IC3, and the other end is connect with resistance R7.
Preferably, power output element VS1, power output element VS2, power output element VS3, power output element
VS4, power output element VS5, power output element VS6 are N-channel MOS FET pipe STL90N6F7.
Preferably, the voltage stabilizing chip IC2 is LM2596HVS-12/ADJ.
Preferably, the voltage stabilizing chip IC3 is 78M05 voltage stabilizing chip.
The electronic component model and connection relationship of other non-exquisite details are marked referring to attached drawing.
The main of the present embodiment realizes FOC algorithm with STSPIN32F0 for control chip, meets motor torque and revolving speed essence
Requirement of the degree control to algorithm execution speed.Mainly have: MCU algorithm and control processing circuit, 12V, 5V pressure stabilizing and DC bus electricity
Detection circuit is pressed, circuit inside and out sampling current enhanced processing MCU is run, direction external control interface circuit, and motor connects
Mouth and input power processing circuit, 6 three-phase drive, inversion and current of electric sample circuit major parts compositions.Control algolithm
The control to motor torque (electric current), speed, position is realized by the control to current of electric.Electric current is as innermost ring, speed
It is intermediate ring, position is used as most outer ring.The control loop time is short, the fast response time of system, can make for load rapidly
Adjustment, completes error compensation in shorter period, to realize more smoothly water pump operation and higher efficiency.
The present embodiment is specifically described below with reference to circuit.
1.MCU algorithm and control processing circuit are converted by acquiring biphase current by Clarke transformation and Park, right
Obtained Iq and Id amount carry out PI adjusting, then are converted by position and speed estimation and inverse Park transformation and inverse Clarke, lead to
It crosses SVPWM and modulates to obtain three-phase voltage Va/Vb/Vc actually required and input to inversion electric bridge, complete FOC control algolithm, driving
Water pump rotation.Through built-in three-phase half-bridge driver and bootstrap diode, three-phase inverting circuit work, built-in amplifier can be directly driven
The enhanced processing of feedback current can be achieved.It is the control centre of whole system work.
2. pressure stabilizing and DC bus voltage detection circuit, mainly the realization steady 12V and 5V voltage of 12-48V, low for whole system
The power supply of splenium parallel circuit.Bus voltage detection predominantly realizes that system overvoltage, under-voltage protection function provide sampled signal to MCU.
3. it is positive and negative to provide system boot, shutdown input interface and motor for CPU for operation, direction external control interface circuit
Turn control interface.
4. circuit inside and out sampling current enhanced processing MCU, the current of electric that will acquire by capacitor C21C22C23
Signal is filtered, and the amplification factor of electric current can be changed by adjusting R17/R18, R22/R23, R27/R28, mention for FOC algorithm
For accurate current feedback signal, the functions such as motor control and overcurrent, water shortage, open-phase protection are realized.
5. motor interface and input power processing circuit provide the input interface of pump motor, and carry out to power supply
Filtering and input lightning protection.
6. three-phase drive, inversion and current of electric sample circuit realize DC power supply to the inverse of modulation SVPWM drive waveforms
Become.Three phase full bridge driving circuit uses 6 N-channel MOS FET pipe STL90N6F7 power output elements, and operating current is reachable
10A。
The driving circuit of full-bridge inverting is made of the built-in three-phase drive device of ICI and built-in bootstrap diode.Lower arm MOS
Pipe is driven by LSU, LSV and LSW, and upper arm metal-oxide-semiconductor is driven by HSU, HSV and HSW, and VD5-10 can improve high frequency on state characteristic, subtract
Few metal-oxide-semiconductor high-frequency loss.
FOC algorithm and the phase current feedback signal of system overcurrent protection detection are through accurate high-power sampled resistance R37, R42
And R47 is sampled, IC1 is filtered amplification to the phase current signal of acquirement, and Clarke is converted and Park is converted and inverse
Entire control algolithm is completed in Clarke transformation and inverse Park transformation, and it is complete that the driving signal of final output SVPWM modulation is sent to three-phase
Bridge circuit, driving motor work.
External component is saved using built-in chip type amplifier in the present embodiment, simplifies system design, improves the property of system
Valence ratio optimizes the flexibility reliability and stability of feedback system design, and reinforces motor control, reduces noise, is promoted
Efficiency and precision.Using the three-phase drive device and bootstrap diode of built-in chip type, the grid driving current of up to 600mA mixes wide electricity
The STL90N6F7 power MOSFET tube of internal resistance is forced down as three-phase motor driving circuit, the system of realizing can be in the wide work of 9-48V
Make reliably working in voltage range, and perfect overcurrent protection, under-voltage protection design, perfect design prevent whole system by
To the damage of overcurrent.According to machine winding characteristic, number of pole-pairs, winding electricity group, winding inductance and reaction kinetic potential constant etc. are established
Motor model.By using shunt resistance, the electric current in each winding is monitored, and by electric current and the electrical mould based on motor characteristic
Type is compared.Realize the control of electric current loop.The utility model uses sensorless technology and rotor fixed position algorithm, guarantees the sun
It can the reliable high-efficient low-noise operating of water pump.The combination of the above algorithm and hardware circuit optimizes system design, reduces system
Cost.Hardware configuration described in the utility model can be very good to provide the support on hardware for the realization of above-mentioned algorithm.
The utility model relates to a kind of application of brushless DC motor without position sensor in photovoltaic water pump system, use
STSPIN32F0 realizes embedded design, using no sensor FOC algorithm, uses phase current Ia and Ib as feedback signal, and Ic
It is then calculated by digitlization, algorithm carries out Park transformation to feedback current and Clarke is converted, binding site estimator
The position and speed information and reference value for estimating rotor compare and seek difference, then adjust through PI, inverse Park transformation and inverse
Clarke transformation, then the three-phase motor driving signal modulated through SVPWM driving inverter circuit is worked.The utility model utilizes nothing
Sensor FOC algorithm realizes the control to motor torque (electric current), speed, position by the control to current of electric.Driving
Water pump pumps.Realize that solar energy directly drives pump working, change electric power storage is water storage, energy conservation and environmental protection, belongs to solar water pump control
Technical field.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. a kind of miniature sine wave three-phase brushless dc motor water pump controller characterized by comprising MCU algorithm and control
Processing circuit and the pressure stabilizing being attached thereto and DC bus voltage detection circuit, electricity inside and out sampling current enhanced processing MCU
Road, three-phase drive, inversion and current of electric sample circuit, wherein the MCU algorithm and control processing circuit include control chip
IC1, resistance R1, inductance LS1, capacitor C5, capacitor C6, diode VD1, diode VD2；Wherein resistance R1 and diode VD1 be simultaneously
Connection setting, the two one end are connect with the 7th foot of the control chip IC 1, and the other end is connect with inductance LS1 and capacitor C5；Capacitor
C6, diode VD2 are arranged in parallel, and the two one end is connect with the 9th foot of the control chip IC 1, other end ground connection；The control
Coremaking piece IC1 is that STSPIN32F0 controls chip.
2. miniature sine wave three-phase brushless dc motor water pump controller as described in claim 1, it is characterised in that: described three
Mutually driving, inversion and current of electric sample circuit include power output element VS1, power output element VS2, power output element
VS3, power output element VS4, power output element VS5, power output element VS6, resistance R36, resistance R37, resistance R41,
Resistance R42, resistance R46, resistance R47, wherein power output element VS1 is successively connect with power output element VS6, resistance R37
After be grounded, the first foot of power output element VS6 after resistance R36 with the 36th foot of control chip IC 1 by connecting；Power
Output element VS2 is grounded after successively connecting with power output element VS5, resistance R42, and the first foot of power output element VS5 is logical
It is connect after crossing resistance R41 with the 32nd foot of control chip IC 1；Power output element VS3 successively with power output element
Be grounded after VS4, resistance R47 connection, the first foot of power output element VS5 by after resistance R46 with control chip IC 1 second
The connection of ten octals.
3. miniature sine wave three-phase brushless dc motor water pump controller as described in claim 1, it is characterised in that: described steady
Pressure and DC bus voltage detection circuit include voltage stabilizing chip IC2, resistance R4, resistance R6, diode VD4, inductance LS2, capacitor
C14, capacitor C15, wherein the first pin of the voltage stabilizing chip IC2 successively after resistance R4, resistance R6 with control chip IC 1
The 19th foot connection；The second pin of the voltage stabilizing chip IC2 is connect with diode VD4, inductance LS2；Capacitor C14, capacitor
C15 is arranged in parallel, and the two one end is connect with inductance LS2, other end ground connection.
4. miniature sine wave three-phase brushless dc motor water pump controller as claimed in claim 3, it is characterised in that: described steady
Pressure and DC bus voltage detection circuit further include voltage stabilizing chip IC3, capacitor C17, capacitor C18, capacitor C19, resistance R7, diode
DL2, fuse FU1, wherein the capacitor C17 is connect with the first pin of voltage stabilizing chip IC3, capacitor C18, capacitor C19 are in parallel
Setting, the two one end are connect with the third pin of voltage stabilizing chip IC3, and the other end is connect with diode DL2；The one of fuse FU1
End is connect with the third pin of voltage stabilizing chip IC3, and the other end is connect with resistance R7.
5. miniature sine wave three-phase brushless dc motor water pump controller as claimed in claim 2, it is characterised in that: power is defeated
Element VS1, power output element VS2, power output element VS3, power output element VS4, power output element VS5, function out
Rate output element VS6 is N-channel MOS FET pipe STL90N6F7.
6. miniature sine wave three-phase brushless dc motor water pump controller as claimed in claim 3, it is characterised in that: described steady
Pressure chip IC 2 is LM2596HVS-12/ADJ.
7. miniature sine wave three-phase brushless dc motor water pump controller as claimed in claim 4, it is characterised in that: described steady
Pressure chip IC 3 is 78M05 voltage stabilizing chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593040.1U CN208739047U (en) | 2018-09-28 | 2018-09-28 | A kind of miniature sine wave three-phase brushless dc motor water pump controller |
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| CN201821593040.1U CN208739047U (en) | 2018-09-28 | 2018-09-28 | A kind of miniature sine wave three-phase brushless dc motor water pump controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114616474A (en) * | 2019-10-31 | 2022-06-10 | 德州仪器公司 | Three-phase current measurement |
-
2018
- 2018-09-28 CN CN201821593040.1U patent/CN208739047U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114616474A (en) * | 2019-10-31 | 2022-06-10 | 德州仪器公司 | Three-phase current measurement |
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