CN104506060B - A kind of also machine inverter - Google Patents
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- CN104506060B CN104506060B CN201410633399.7A CN201410633399A CN104506060B CN 104506060 B CN104506060 B CN 104506060B CN 201410633399 A CN201410633399 A CN 201410633399A CN 104506060 B CN104506060 B CN 104506060B
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Abstract
The present invention relates to and machine inverter.nullSolve routine techniques and need high-precision same frequency sampling and the problem of stable voltage follower，Technical scheme is: include power distribution module、CPU allocation manager module、Motor synchronizing output module、Constant current constant voltage drives module and power conversion module，Described power distribution module respectively with the input of CPU allocation manager module、The input of motor synchronizing output module and constant current constant voltage drive the input of module to connect，The outfan of CPU allocation manager module drives the control end of module to be connected with described constant current constant voltage，Constant current constant voltage drives the outfan of module to be connected with the control end of power conversion module，The outfan of power conversion module is connected with the input of motor synchronizing output module，The outfan of motor synchronizing output module is and the outfan of machine inverter，The feedback end of motor synchronizing output module is connected with the feedback input end of described CPU allocation manager module.The present invention need not CPU computing at a high speed, output frequency can follow electrical network regulation automatically.
Description
Technical field
The present invention is a kind of power supply change-over device, particularly relates to a kind of and machine inverter.
Background technology
Electrified develop rapidly, capacity, the Performance And Reliability of electric power system required more and more higher,
Also the research promoting Power Electronic Technique deepens continuously.Multi-machine parallel connection realizes Large Copacity power supply and is recognized
One of important directions for the development of current power conversion technology.The capacity of single Inverter is ten
Divide limited, carry out dilatation by multiple wired in parallel, be possible not only to make full use of novel full control power
The advantage of switching device, reduces the volume of system, reduces noise, it is also possible to improves the dynamic of system and rings
Answer speed and the versatility of inverter changer.Conventional and machine inverter is tied by high-speed dsp chip
Close SPWM design, detect the Balance route of output voltage and electric current, high-precision same frequency sampling and
Stable voltage follower.This cost being all bigger on software and hardware is paid.Therefore exploitation one
Kind need not CPU computing at a high speed, output frequency can follow electrical network regulation automatically and machine inverter gesture exists
Must go.
China Patent Publication No.: CN1149785A, publication date on May 14th, 1997, discloses one
Plant inverter, including input rectifier, input filter, output rectifier and output filter, institute
State and be connected between input filter and output rectifier by electrical switch and double primary intermediate-frequency transformer group
The convertor circuit become；Described convertor circuit include 4 electrical switch S1～S4,8 diode D1～
D8,2 uptake pathway R1C1, R2C2 and by 2 armature windings N1, N2 and N number of secondary windings
The intermediate-frequency transformer B constituted；The positive pole of the upper termination power of described switch S1, the lower end of S1 is respectively
Connect the negative electrode of diode D1, the anode of D5, the upper end of transformator B armature winding N1 and absorption mesh
The left end of R1 in network R1C1, the negative electrode of diode D5 and D2 connects the positive pole of power supply, diode respectively
The anode of D2 connects the switch upper end of S2, the negative electrode of diode D6, transformator B armature winding respectively
The right-hand member of C1 in the lower end of N1, uptake pathway R1C1, under the anode of diode D1, switch S2
End, the anode of diode D6 connect the negative pole of power supply respectively；The upper termination power of described switch S3 is just
Pole, the lower end of S3 meets the negative electrode of diode D3, the anode of D7, transformator B armature winding N2 respectively
Lower end, the left end of R2 in uptake pathway R2C2, the negative electrode of diode D7 and D4 connects power supply respectively
Positive pole, the anode of diode D4 respectively connect switch the upper end of S4, the negative electrode of diode D8, change
The right-hand member of C2, the sun of diode D3 in the upper end of depressor B armature winding N2, uptake pathway R2C2
Pole, the switch lower end of S4, the anode of diode D8 connect the negative pole of power supply respectively.Though this technical scheme
So can carry out inversion output, but this working method, apply needs time in routine machine inverter
Combine SPWM by high-speed dsp chip to design, detect the Balance route of output voltage and electric current,
High-precision same frequency sampling and stable voltage follower.This is all bigger one-tenth on software and hardware
Originally pay.
Summary of the invention
It is an object of the invention to deposit conventional also machine inverter by a high speed for solution current technology scheme
Dsp chip combines SPWM design, detects the Balance route of output voltage and electric current, high-precision
With frequency sampling and stable voltage follower, this cost being all bigger on software and hardware is paid
Problem, it is provided that a kind of need not CPU computing at a high speed, output frequency can automatically be followed electrical network and be regulated also
Machine inverter.
The technical solution adopted for the present invention to solve the technical problems is: a kind of and machine inverter, by electricity
Source powers and is converted to digital power and powers to digital element, distributes pipe including power distribution module, CPU
Reason module, motor synchronizing output module, constant current constant voltage drive module and power conversion module, described power supply
Distribution module respectively with the input of CPU allocation manager module, the input of motor synchronizing output module and
Constant current constant voltage drives the input of module to connect, the outfan of CPU allocation manager module and described constant current
Constant voltage drives the control end of module to connect, and constant current constant voltage drives outfan and the power conversion module of module
Control end connect, the outfan of power conversion module is connected with the input of motor synchronizing output module,
The outfan of motor synchronizing output module is and the outfan of machine inverter, the feedback of motor synchronizing output module
End is connected with the feedback input end of described CPU allocation manager module.The present invention is made up of five parts,
Power distribution module: this part is the voltage outside input, distributes the constant electricity required for each module
Pressure, reaches stablizing of system voltage, CPU allocation manager module, the height of CPU real-time judge power supply
Voltage parameter, controls constant current constant voltage and drives module protection machine to work under reliable voltage status,
Supply voltage is too high and too low, and the temperature within machine is too high, is shut off the defeated of module driving signal
Go out.Can also the synchronizing voltage parameter of real-time tracking motor synchronizing output module, control constant current constant voltage and drive
Module driving signal, regulates output voltage parameter.After electric network fault being detected, protect constant current at any time
Constant voltage drives the driving signal of module, ensures the safety of machine and electrical network.Constant current constant voltage drives module,
The operating current of automatic detecting machine device, regulation drives signal, current constant in desired current range
In.When load is more than the output of also machine, it is automatically adjusted and reduces the pulse duty cycle driving signal,
Control the electric energy output of power conversion module, complete the most dynamo-electric stream of inversion.Second, real-time tracking CPU
The synchronizing voltage parameter of allocation manager module, stablizes embedding firmly output voltage source.Reach to control power to turn
The electric energy output of die change block, completes the most dynamo-electric pressure of inverter.Power conversion module, real-time tracking is held
Row constant current constant voltage drives the driving signal of module, and high frequency demodulation exports big electric current, voltage DC voltage.
Motor synchronizing output module: by power network signal, synchronizing signal of booting, drive output module, and electrical network
Synchronize and machine.Mains frequency motor synchronizing, completes the same frequency output of inverter.Need not other detections,
With follow.Decrease hardware detection and the CPU software computing at a high speed of other complexity.Do arrival safety
Reliable and machine exports.
As preferably, described motor synchronizing output module include resistance R1, resistance R2, resistance R3,
Resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance
R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, electricity
Resistance R18, resistance R19, field effect transistor VT1, field effect transistor VT2, field effect transistor VT3, field effect
Pipe VT4, audion Q1, audion Q2, audion Q3, varistor RT1, varistor RT2,
Varistor RT3, optocoupler QU1, optocoupler QU2, Zener diode D1, Zener diode D2, steady
Pressure diode D7, Zener diode D11, diode D3, diode D4, diode D5, two poles
Pipe D6, diode D8, diode D9, diode D10, diode D12, electric capacity C1, electric capacity
C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, electric capacity C8, electric capacity C9,
Electric capacity C10, common mode inductance LG, inductance L1, power transformation resistance RT4 and fuse F1, described field effect transistor
The drain electrode of VT1 is connected with the first outfan of power conversion module, the source electrode of described field effect transistor VT2
It is connected with the second outfan of power conversion module, the source electrode of field effect transistor VT1 and field effect transistor VT2
Drain electrode connect, the grid of field effect transistor VT1 is connected with the negative electrode of Zener diode D1, voltage stabilizing two pole
The anode of pipe D1 is connected with the source electrode of field effect transistor VT1, the negative electrode of Zener diode D1 and resistance R1
First end connect, second end of resistance R1 is connected with first end of electric capacity C1, the second of electric capacity C1
End is connected with the anode of Zener diode D1, and second end of resistance R1 is connected with the negative electrode of diode D3,
The anode of diode D3 passes sequentially through resistance R3, resistance R9 is connected with the anode of diode D8, and two
The negative electrode of pole pipe D3 is connected by the anode of resistance R4 and diode D4, the negative electrode of diode D4 and
The anode of diode D3 connects, and the anode of diode D4 is connected with the base stage of audion Q1, audion
The colelctor electrode of Q1 is connected with the grid of field effect transistor VT1, the emitter stage of audion Q1 with voltage stabilizing two
The anode of pole pipe D1 connects, and the base stage of audion Q1 is connected with the negative electrode of diode D5, diode
The anode of D5 is connected with the emitter stage of audion Q1, and the base stage of audion Q1 passes through electric capacity C2 and three
The emitter stage of pole pipe Q1 connects, and the negative electrode of diode D6 is connected with the emitter stage of audion Q1, two poles
The anode of pipe D6 is connected with the grid of field effect transistor VT2, the anode of diode D6 by resistance R6 and
Resistance R5 is connected with the negative electrode of diode D6, and the anode of diode D6 is by resistance R2 and voltage stabilizing two
The negative electrode of pole pipe D2 connects, and the anode of Zener diode D2 is connected with the source electrode of field effect transistor VT2,
The drain electrode of described field effect transistor VT4 is connected with the drain electrode of described field effect transistor VT1, described field effect transistor
The source electrode of VT3 is connected with the source electrode of described field effect transistor VT2, and the source electrode of field effect transistor VT4 is imitated with field
Should pipe VT3 drain electrode connect, the grid of field effect transistor VT4 is connected with the negative electrode of Zener diode D7,
The anode of Zener diode D7 is connected with the source electrode of field effect transistor VT4, the negative electrode of Zener diode D7
Being connected with first end of resistance R7, second end of resistance R7 is connected with first end of electric capacity C3, electric capacity
Second end of C3 is connected with the anode of Zener diode D7, second end of resistance R7 and diode D8
Negative electrode connect, the anode of diode D8 passes sequentially through resistance R9, resistance R3 and diode D3
Anode connects, and the negative electrode of diode D8 is connected by the anode of resistance R10 and diode D9, two poles
The negative electrode of pipe D9 is connected with the anode of diode D8, the anode of diode D9 and the base of audion Q2
Pole connects, and the colelctor electrode of audion Q2 is connected with the grid of field effect transistor VT4, and audion Q2 sends out
Emitter-base bandgap grading is connected with the anode with Zener diode D7, the base stage of audion Q2 and the moon of diode D10
Pole connects, and the anode of diode D10 is connected with the emitter stage of audion Q2, the base stage of audion Q2
Being connected by the emitter stage of electric capacity C4 with audion Q2, the negative electrode of diode D12 is with audion Q2's
Emitter stage connects, and the anode of diode D12 is connected with the grid of field effect transistor VT3, diode D12
Anode be connected by the negative electrode of resistance R12 and resistance R11 and diode D12, diode D12's
Anode is connected by the negative electrode of resistance R8 and Zener diode D11, the anode of Zener diode D11 and
The source electrode of field effect transistor VT3 connects, and the emitter stage of audion Q1 inputs with the first of common mode inductance LG
End connects, and the emitter stage of audion Q1 is connected by second input of inductance L1 and common mode inductance LG,
First outfan of common mode inductance LG is by the protective grounding interface of electric capacity C7 with motor synchronizing output module
Connecting, protective grounding interface is respectively by electric capacity C5 and electric capacity C6 ground connection, the first of common mode inductance LG
Connect between outfan and second outfan of common mode inductance LG and have the of electric capacity C8, common mode inductance LG
One outfan is connected with the zero line interface of motor synchronizing output module, and second outfan of common mode inductance LG leads to
Overcurrent fuse F1 and first end of varistor RT1, first end of varistor RT2 and varistor
First end of RT3 connects, second end of varistor RT1, second end of varistor RT2 and pressure
Second end of quick resistance RT3 is connected with the phase line interface of motor synchronizing output module, the of common mode inductance LG
One outfan is connected with second input of optocoupler QU1 and second input of optocoupler QU2, common mode
Second outfan of inductance LG and the first input end of optocoupler QU1 and the first input end of optocoupler QU2
Connecting, first conduction terminal of optocoupler QU1 is respectively by resistance R18 and electric capacity C10 ground connection, optocoupler QU1
The first conduction terminal pass sequentially through power transformation resistance RT4 and resistance R19 be connected with digital power, optocoupler QU2
The second conduction terminal be connected with second conduction terminal of optocoupler QU1, the second conduction terminal ground connection of optocoupler QU2,
First conduction terminal of optocoupler QU2 is connected with audion Q3 base stage by resistance R17, and digital power passes through
Resistance R15 is connected with the colelctor electrode of audion Q3, and digital power is by resistance R16 and optocoupler QU2's
First conduction terminal connects, and passes through electric capacity between colelctor electrode and the emitter stage of audion Q3 of audion Q3
C9 connects, and the colelctor electrode of audion Q3 is connected with a port of CPU allocation manager module.
As preferably, described constant current constant voltage drives module to include resonance control chip U1, operation amplifier core
Sheet U2, audion Q4, audion Q5, audion Q6, resistance R20, resistance R21, resistance R22,
Resistance R23, resistance R24, resistance R25, resistance R26, resistance R27, resistance R28, resistance R29,
Resistance R30, resistance R31, resistance R32, resistance R33, resistance R34, resistance R35, resistance R36,
Resistance R37, resistance R38, power transformation resistance RT5, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity
C14, electric capacity C15, electric capacity C16, electric capacity C17, electric capacity C18, electric capacity C19, electric capacity C20, electricity
Hold C21, diode D13, diode D14, diode D15 and diode D16, audion Q4's
Emitter stage passes through resistance R20 ground connection, and the base stage of audion Q4 is by resistance R23 and audion Q4's
Colelctor electrode connects, and the colelctor electrode of audion Q4 connects digitally by electric capacity C11, the collection of audion Q4
Electrode is connected by the CURLIM end of resistance R21 and resonance control chip U1, the current collection of audion Q4
Pole also VREF end with resonance control chip U1 is connected, and the base stage of audion Q4 passes sequentially through diode
D13 and diode D14 is connected with the CT end of resonance control chip U1, the CT of resonance control chip U1
End is by electric capacity C12 ground connection, the CS-end ground connection of resonance control chip U1, resonance control chip U1
CS+ end pass sequentially through resistance R22 and resistance R20 ground connection, the NI end of resonance control chip U1 with
First end of resistance R27 connects, and first end of resistance R27 is respectively by electric capacity C15 and resistance R26
Ground connection, second end of resistance R27 is respectively by resistance R25 and electric capacity C16 ground connection, resistance R27
The second end electrically connected by a port of resistance R28 and CPU allocation manager module, resonance control
The INV end of chip U1 respectively with first end of electric capacity C13, first end of electric capacity C14, electric capacity C7
The first end and resistance R29 first end connect, second end of electric capacity C13 by resistance R24 with
Second end of electric capacity C14 connects, and second end of electric capacity C14 connects with the COMP of resonance control chip U1
Connecing, second end of electric capacity C17 is connected by the OUTB end of resistance R30 and operation amplifier chip U2,
Second end of resistance R29 is connected with the OUTB end of operation amplifier chip U2, second end of resistance R29
Also passing sequentially through resistance R31, power transformation resistance RT5 and resistance R32 ground connection, second end of resistance R29 is also
It is connected with first end of electric capacity C18, second end of electric capacity C18 and the INB-of operation amplifier chip U2
End connects, and second end of electric capacity C18 passes through resistance R32 ground connection, the INB+ of operation amplifier chip U2
End connects digitally by resistance R33, and the INB+ end of operation amplifier chip U2 passes through electric capacity C19 and fortune
The GND end calculating amplification chip U2 connects, and the SHUTDOWM end of resonance control chip U1 distributes with CPU
One port electrical connection of management module, the VIN end of resonance control chip U1 is connected with digital power,
The VIN end of resonance control chip U1 is respectively by electric capacity C20 and electric capacity C21 ground connection, and resonance controls
The VIN end of chip U1 is connected with the VC end of resonance control chip U1, the BOUT of resonance control chip U1
End is connected by the base stage of resistance R35 with audion Q5, the colelctor electrode of audion Q5 and audion Q5
Base stage between connected by resistance R37, the base stage of audion Q5 is connected with the anode of diode D15,
The negative electrode of diode D15 is connected with the emitter stage of audion Q5, the colelctor electrode of audion Q5 and power
One pwm signal port of modular converter connects, and the colelctor electrode of audion Q5 connects digitally, resonance control
The GND end ground connection of coremaking sheet U1, the AOUT end of resonance control chip U1 passes through resistance R36 and three poles
The base stage of pipe Q6 connects, and the colelctor electrode of audion Q6 connects digitally, the base stage of audion Q6 and three poles
Being connected by resistance R38 between the colelctor electrode of pipe Q6, the base stage of audion Q6 is with diode D16's
Anode connects, and the emitter stage of audion Q6 is connected with the negative electrode of diode D16, and audion Q6 sends out
Emitter-base bandgap grading is connected with another pwm signal port of power conversion module, the RT of resonance control chip U1
End is by resistance R34 ground connection.
As preferably, described resonance control chip U1 is UCC2806DW chip.Apply this chip cost
Relatively low.
As preferably, described operation amplifier chip U2 is LM358 chip.Apply this chip cost relatively low.
The substantial effect of the present invention is: need not CPU computing at a high speed, output frequency can be followed automatically
Electrical network regulates.
Accompanying drawing explanation
Fig. 1 is a kind of frame structure schematic diagram in the present invention；
Fig. 2 is the circuit theory diagrams of motor synchronizing output module in the present invention；
Fig. 3 is the circuit theory diagrams that in the present invention, constant current constant voltage drives module；
Fig. 4 is the circuit theory schematic diagram of the power conversion module in the present invention；
Fig. 5 is the circuit theory schematic diagram of the CPU allocation manager module in the present invention.
In figure: 1, power distribution module, 2, CPU allocation manager module, 3, constant current constant voltage drive module,
4, motor synchronizing output module, 5, power conversion module.
Detailed description of the invention
Below by specific embodiment, and combine accompanying drawing, technical scheme is made further
Illustrate.
Embodiment:
A kind of also machine inverter (seeing accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4 and accompanying drawing 5), by
Power supply is powered and is converted to digital power and powers to digital element, including power distribution module, CPU distribution
Management module, motor synchronizing output module, constant current constant voltage drive module and power conversion module, described electricity
Source distribution module respectively with input, the input of motor synchronizing output module of CPU allocation manager module
The input driving module with constant current constant voltage connects, the outfan of CPU allocation manager module and described perseverance
Stream constant voltage drives the control end of module to connect, and constant current constant voltage drives outfan and the power modulus of conversion of module
The control end of block connects, and the outfan of power conversion module is connected with the input of motor synchronizing output module,
The outfan of motor synchronizing output module is and the outfan of machine inverter, the feedback of motor synchronizing output module
End is connected with the feedback input end of described CPU allocation manager module.Described motor synchronizing output module bag
Include resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7,
Resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14,
Resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, field effect transistor VT1, field
Effect pipe VT2, field effect transistor VT3, field effect transistor VT4, audion Q1, audion Q2, three
Pole pipe Q3, varistor RT1, varistor RT2, varistor RT3, optocoupler QU1, optocoupler
QU2, Zener diode D1, Zener diode D2, Zener diode D7, Zener diode D11,
Diode D3, diode D4, diode D5, diode D6, diode D8, diode D9,
Diode D10, diode D12, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity
C5, electric capacity C6, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, common mode inductance LG, electricity
Sense L1, power transformation resistance RT4 and fuse F1, the drain electrode of described field effect transistor VT1 and power modulus of conversion
First outfan of block connects, and the source electrode of described field effect transistor VT2 is defeated with the second of power conversion module
Going out end to connect, the source electrode of field effect transistor VT1 is connected with the drain electrode of field effect transistor VT2, field effect transistor
The grid of VT1 is connected with the negative electrode of Zener diode D1, the anode of Zener diode D1 and field effect
The source electrode of pipe VT1 connects, and the negative electrode of Zener diode D1 is connected with first end of resistance R1, resistance
Second end of R1 is connected with first end of electric capacity C1, second end of electric capacity C1 and Zener diode D1
Anode connect, second end of resistance R1 is connected with the negative electrode of diode D3, the sun of diode D3
Pole passes sequentially through resistance R3, resistance R9 is connected with the anode of diode D8, the negative electrode of diode D3
Being connected by the anode of resistance R4 with diode D4, the negative electrode of diode D4 is with diode D3's
Anode connects, and the anode of diode D4 is connected with the base stage of audion Q1, the current collection of audion Q1
Pole is connected with the grid of field effect transistor VT1, the emitter stage of audion Q1 with Zener diode D1
Anode connect, the base stage of audion Q1 is connected with the negative electrode of diode D5, the sun of diode D5
Pole is connected with the emitter stage of audion Q1, and the base stage of audion Q1 is by electric capacity C2 and audion Q1
Emitter stage connect, the negative electrode of diode D6 is connected with the emitter stage of audion Q1, diode D6
Anode be connected with the grid of field effect transistor VT2, the anode of diode D6 pass through resistance R6 and resistance
R5 is connected with the negative electrode of diode D6, and the anode of diode D6 passes through resistance R2 and Zener diode
The negative electrode of D2 connects, and the anode of Zener diode D2 is connected with the source electrode of field effect transistor VT2, described
The drain electrode of field effect transistor VT4 is connected with the drain electrode of described field effect transistor VT1, described field effect transistor VT3
Source electrode be connected with the source electrode of described field effect transistor VT2, the source electrode of field effect transistor VT4 and field effect transistor
The drain electrode of VT3 connects, and the grid of field effect transistor VT4 is connected with the negative electrode of Zener diode D7, surely
The anode of pressure diode D7 is connected with the source electrode of field effect transistor VT4, the negative electrode of Zener diode D7
Being connected with first end of resistance R7, second end of resistance R7 is connected with first end of electric capacity C3, electricity
The second end holding C3 is connected with the anode of Zener diode D7, second end of resistance R7 and diode
The negative electrode of D8 connects, and the anode of diode D8 passes sequentially through resistance R9, resistance R3 and diode
The anode of D3 connects, and the negative electrode of diode D8 is connected by the anode of resistance R10 and diode D9,
The negative electrode of diode D9 is connected with the anode of diode D8, the anode of diode D9 and audion Q2
Base stage connect, the colelctor electrode of audion Q2 is connected with the grid of field effect transistor VT4, audion Q2
Emitter stage be connected with the anode with Zener diode D7, the base stage of audion Q2 and diode D10
Negative electrode connect, the anode of diode D10 is connected with the emitter stage of audion Q2, audion Q2
Base stage be connected by the emitter stage of electric capacity C4 and audion Q2, the negative electrode of diode D12 and three poles
The emitter stage of pipe Q2 connects, and the anode of diode D12 is connected with the grid of field effect transistor VT3, and two
The anode of pole pipe D12 is connected by the negative electrode of resistance R12 and resistance R11 and diode D12, and two
The anode of pole pipe D12 is connected by the negative electrode of resistance R8 and Zener diode D11, Zener diode
The anode of D11 is connected with the source electrode of field effect transistor VT3, the emitter stage of audion Q1 and common mode inductance
The first input end of LG connects, and the emitter stage of audion Q1 is by inductance L1 and common mode inductance LG
The second input connect, first outfan of common mode inductance LG is exported by electric capacity C7 and motor synchronizing
The protective grounding interface of module connects, and protective grounding interface passes through electric capacity C5 and electric capacity C6 ground connection respectively,
Connect between first outfan and second outfan of common mode inductance LG of common mode inductance LG and have electric capacity
First outfan of C8, common mode inductance LG is connected with the zero line interface of motor synchronizing output module, common mode
Second outfan of inductance LG is by fuse F1 and first end of varistor RT1, varistor
First end of RT2 and first end of varistor RT3 connect, second end of varistor RT1, pressure
Second end of quick resistance RT2 and second end of varistor RT3 connect with the phase line of motor synchronizing output module
Mouth connects, first outfan of common mode inductance LG and second input of optocoupler QU1 and optocoupler
Second input of QU2 connects, and second outfan of common mode inductance LG is defeated with the first of optocoupler QU1
The first input end entering end and optocoupler QU2 connects, and first conduction terminal of optocoupler QU1 is passed through respectively
Resistance R18 and electric capacity C10 ground connection, first conduction terminal of optocoupler QU1 passes sequentially through power transformation resistance RT4
It is connected with digital power with resistance R19, second conduction terminal of optocoupler QU2 and the second of optocoupler QU1
Conduction terminal connects, and the second conduction terminal ground connection of optocoupler QU2, first conduction terminal of optocoupler QU2 is passed through
Resistance R17 is connected with audion Q3 base stage, and digital power is by resistance R15 and audion Q3's
Colelctor electrode connects, and digital power is connected by first conduction terminal of resistance R16 and optocoupler QU2, three poles
It is connected by electric capacity C9 between the colelctor electrode of pipe Q3 and the emitter stage of audion Q3, audion Q3
Colelctor electrode be connected with a port of CPU allocation manager module.Described constant current constant voltage drives module bag
Include resonance control chip U1, operation amplifier chip U2, audion Q4, audion Q5, audion
Q6, resistance R20, resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, electricity
Resistance R26, resistance R27, resistance R28, resistance R29, resistance R30, resistance R31, resistance R32,
Resistance R33, resistance R34, resistance R35, resistance R36, resistance R37, resistance R38, power transformation resistance
RT5, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, electric capacity C16,
Electric capacity C17, electric capacity C18, electric capacity C19, electric capacity C20, electric capacity C21, diode D13, two poles
Pipe D14, diode D15 and diode D16, the emitter stage of audion Q4 is connect by resistance R20
Ground, the base stage of audion Q4 is connected by the colelctor electrode of resistance R23 and audion Q4, audion
The colelctor electrode of Q4 connects digitally by electric capacity C11, the colelctor electrode of audion Q4 by resistance R21 with
The CURLIM end of resonance control chip U1 connects, the colelctor electrode of audion Q4 also with resonance control
The VREF end of chip U1 connects, and the base stage of audion Q4 passes sequentially through diode D13 and diode
D14 is connected with the CT end of resonance control chip U1, and the CT end of resonance control chip U1 is by electricity
Hold C12 ground connection, the CS-end ground connection of resonance control chip U1, the CS+ end of resonance control chip U1
Pass sequentially through resistance R22 and resistance R20 ground connection, the NI end of resonance control chip U1 and resistance R27
The first end connect, first end of resistance R27 respectively by electric capacity C15 and resistance R26 ground connection,
Second end of resistance R27 is respectively by resistance R25 and electric capacity C16 ground connection, the second of resistance R27
End is electrically connected by a port of resistance R28 and CPU allocation manager module, resonance control chip
The INV end of U1 respectively with first end of electric capacity C13, first end of electric capacity C14, electric capacity C7
First end of the first end and resistance R29 connects, and second end of electric capacity C13 is by resistance R24 and electricity
The second end holding C14 connects, and second end of electric capacity C14 connects with the COMP of resonance control chip U1
Connecing, second end of electric capacity C17 is connected by the OUTB end of resistance R30 and operation amplifier chip U2,
Second end of resistance R29 is connected with the OUTB end of operation amplifier chip U2, the second of resistance R29
End also passes sequentially through resistance R31, power transformation resistance RT5 and resistance R32 ground connection, second end of resistance R29
Also it is connected with first end of electric capacity C18, second end of electric capacity C18 and the INB-of operation amplifier chip U2
End connects, and second end of electric capacity C18 passes through resistance R32 ground connection, the INB+ of operation amplifier chip U2
End connects digitally by resistance R33, and the INB+ end of operation amplifier chip U2 passes through electric capacity C19 and fortune
Calculate amplification chip U2 GND end connect, the SHUTDOWM end of resonance control chip U1 with
One port electrical connection of CPU allocation manager module, the VIN end of resonance control chip U1 and numeral
Power supply connects, and the VIN end of resonance control chip U1 is connect by electric capacity C20 and electric capacity C21 respectively
Ground, the VIN end of resonance control chip U1 is connected with the VC end of resonance control chip U1, resonance control
The BOUT end of coremaking sheet U1 is connected by the base stage of resistance R35 and audion Q5, audion Q5
Colelctor electrode and the base stage of audion Q5 between be connected by resistance R37, the base stage of audion Q5 with
The anode of diode D15 connects, and the negative electrode of diode D15 is connected with the emitter stage of audion Q5,
The colelctor electrode of audion Q5 is connected with power conversion module pwm signal port, audion
The colelctor electrode of Q5 connects digitally, the GND end ground connection of resonance control chip U1, resonance control chip
The AOUT end of U1 is connected by the base stage of resistance R36 and audion Q6, the current collection of audion Q6
Pole connects digitally, by resistance R38 between base stage and the colelctor electrode of audion Q6 of audion Q6
Connect, the base stage of audion Q6 is connected with the anode of diode D16, the emitter stage of audion Q6 and
The negative electrode of diode D16 connects, another of the emitter stage of audion Q6 and power conversion module
Pwm signal port connects, and the RT end of resonance control chip U1 passes through resistance R34 ground connection.Described
Resonance control chip U1 is UCC2806DW chip.Described operation amplifier chip U2 is LM358
Chip.
The present invention is made up of five parts, power distribution module: this part is the voltage outside input,
Distribute the constant voltage required for each module, reach stablizing of system voltage, CPU allocation manager module,
The high-low voltage parameter of CPU real-time judge power supply, controls constant current constant voltage and drives module protection machine to exist
Working under voltage status reliably, supply voltage is too high and too low, and the temperature within machine is too high,
It is shut off the output of module driving signal.Can also real-time tracking motor synchronizing output module synchronizing voltage ginseng
Number, controls constant current constant voltage and drives module driving signal, regulate output voltage parameter.When electricity being detected
After net fault, protection constant current constant voltage drives the driving signal of module at any time, ensures machine and electrical network
Safety.Constant current constant voltage drives module, the operating current of automatic detecting machine device, and regulation drives signal,
Current constant is in desired current range.When load is more than the output of also machine, it is automatically adjusted
Reduce the pulse duty cycle driving signal, control the electric energy output of power conversion module, complete inversion
And electromechanics stream.Second, the synchronizing voltage parameter of real-time tracking CPU allocation manager module, stablize embedding live
Output voltage source.Reach to control the electric energy output of power conversion module, complete the most dynamo-electric of inverter
Pressure.Power conversion module, real-time tracking performs constant current constant voltage and drives the driving signal of module, high-frequency solution
Adjust and export big electric current, voltage DC voltage.Motor synchronizing output module: by power network signal, bootstrapping is same
Step signal, driving output module, and synchronized machine.Mains frequency motor synchronizing, completes inverter
Same frequency output.Need not other detections, and follow.Decrease hardware detection and the height of other complexity
The CPU software computing of speed.Do the safe and reliable and machine output that arrives.
Embodiment described above is the one preferably scheme of the present invention, not appoints the present invention
What pro forma restriction, also has other on the premise of without departing from the technical scheme described in claim
Variant and remodeling.
Claims (2)
- null1. one kind and machine inverter，Powered by power supply and be converted to digital power and power to digital element，It is characterized in that: include power distribution module、CPU allocation manager module、Motor synchronizing output module、Constant current constant voltage drives module and power conversion module，Described power distribution module respectively with the input of CPU allocation manager module、The input of motor synchronizing output module and constant current constant voltage drive the input of module to connect，The outfan of CPU allocation manager module drives the control end of module to be connected with described constant current constant voltage，Constant current constant voltage drives the outfan of module to be connected with the control end of power conversion module，The outfan of power conversion module is connected with the input of motor synchronizing output module，The outfan of motor synchronizing output module is and the outfan of machine inverter，The feedback end of motor synchronizing output module is connected with the feedback input end of described CPU allocation manager module；nullDescribed motor synchronizing output module includes resistance R1、Resistance R2、Resistance R3、Resistance R4、Resistance R5、Resistance R6、Resistance R7、Resistance R8、Resistance R9、Resistance R10、Resistance R11、Resistance R12、Resistance R13、Resistance R14、Resistance R15、Resistance R16、Resistance R17、Resistance R18、Resistance R19、Field effect transistor VT1、Field effect transistor VT2、Field effect transistor VT3、Field effect transistor VT4、Audion Q1、Audion Q2、Audion Q3、Varistor RT1、Varistor RT2、Varistor RT3、Optocoupler QU1、Optocoupler QU2、Zener diode D1、Zener diode D2、Zener diode D7、Zener diode D11、Diode D3、Diode D4、Diode D5、Diode D6、Diode D8、Diode D9、Diode D10、Diode D12、Electric capacity C1、Electric capacity C2、Electric capacity C3、Electric capacity C4、Electric capacity C5、Electric capacity C6、Electric capacity C7、Electric capacity C8、Electric capacity C9、Electric capacity C10、Common mode inductance LG、Inductance L1、Power transformation resistance RT4 and fuse F1，The drain electrode of described field effect transistor VT1 is connected with the first outfan of power conversion module，The source electrode of described field effect transistor VT2 is connected with the second outfan of power conversion module，The source electrode of field effect transistor VT1 is connected with the drain electrode of field effect transistor VT2，The grid of field effect transistor VT1 is connected with the negative electrode of Zener diode D1，The anode of Zener diode D1 is connected with the source electrode of field effect transistor VT1，The negative electrode of Zener diode D1 is connected with first end of resistance R1，Second end of resistance R1 is connected with first end of electric capacity C1，Second end of electric capacity C1 is connected with the anode of Zener diode D1，Second end of resistance R1 is connected with the negative electrode of diode D3，The anode of diode D3 passes sequentially through resistance R3、Resistance R9 is connected with the anode of diode D8，The negative electrode of diode D3 is connected by the anode of resistance R4 and diode D4，The negative electrode of diode D4 is connected with the anode of diode D3，The anode of diode D4 is connected with the base stage of audion Q1，The colelctor electrode of audion Q1 is connected with the grid of field effect transistor VT1，The emitter stage of audion Q1 is connected with the anode with Zener diode D1，The base stage of audion Q1 is connected with the negative electrode of diode D5，The anode of diode D5 is connected with the emitter stage of audion Q1，The base stage of audion Q1 is connected by the emitter stage of electric capacity C2 and audion Q1，The negative electrode of diode D6 is connected with the emitter stage of audion Q1，The anode of diode D6 is connected with the grid of field effect transistor VT2，The anode of diode D6 is connected by the negative electrode of resistance R6 and resistance R5 and diode D6，The anode of diode D6 is connected by the negative electrode of resistance R2 and Zener diode D2，The anode of Zener diode D2 is connected with the source electrode of field effect transistor VT2，The drain electrode of described field effect transistor VT4 is connected with the drain electrode of described field effect transistor VT1，The source electrode of described field effect transistor VT3 is connected with the source electrode of described field effect transistor VT2，The source electrode of field effect transistor VT4 is connected with the drain electrode of field effect transistor VT3，The grid of field effect transistor VT4 is connected with the negative electrode of Zener diode D7，The anode of Zener diode D7 is connected with the source electrode of field effect transistor VT4，The negative electrode of Zener diode D7 is connected with first end of resistance R7，Second end of resistance R7 is connected with first end of electric capacity C3，Second end of electric capacity C3 is connected with the anode of Zener diode D7，Second end of resistance R7 is connected with the negative electrode of diode D8，The anode of diode D8 passes sequentially through resistance R9、Resistance R3 is connected with the anode of diode D3，The negative electrode of diode D8 is connected by the anode of resistance R10 and diode D9，The negative electrode of diode D9 is connected with the anode of diode D8，The anode of diode D9 is connected with the base stage of audion Q2，The colelctor electrode of audion Q2 is connected with the grid of field effect transistor VT4，The emitter stage of audion Q2 is connected with the anode with Zener diode D7，The base stage of audion Q2 is connected with the negative electrode of diode D10，The anode of diode D10 is connected with the emitter stage of audion Q2，The base stage of audion Q2 is connected by the emitter stage of electric capacity C4 and audion Q2，The negative electrode of diode D12 is connected with the emitter stage of audion Q2，The anode of diode D12 is connected with the grid of field effect transistor VT3，The anode of diode D12 is connected by the negative electrode of resistance R12 and resistance R11 and diode D12，The anode of diode D12 is connected by the negative electrode of resistance R8 and Zener diode D11，The anode of Zener diode D11 is connected with the source electrode of field effect transistor VT3，The emitter stage of audion Q1 is connected with the first input end of common mode inductance LG，The emitter stage of audion Q2 is connected by second input of inductance L1 and common mode inductance LG，First outfan of common mode inductance LG is connected with the protective grounding interface of motor synchronizing output module by electric capacity C7，Protective grounding interface is respectively by electric capacity C5 and electric capacity C6 ground connection，Connect between first outfan and second outfan of common mode inductance LG of common mode inductance LG and have electric capacity C8，First outfan of common mode inductance LG is connected with the zero line interface of motor synchronizing output module，Second outfan of common mode inductance LG is by first end of fuse F1 and varistor RT1、First end of varistor RT2 and first end of varistor RT3 connect，Second end of varistor RT1、Second end of varistor RT2 and second end of varistor RT3 are connected with the phase line interface of motor synchronizing output module，First outfan of common mode inductance LG is connected with the second input of second input of optocoupler QU1 and optocoupler QU2，Second outfan of common mode inductance LG is connected with the first input end of the first input end of optocoupler QU1 and optocoupler QU2，First conduction terminal of optocoupler QU1 is respectively by resistance R18 and electric capacity C10 ground connection，First conduction terminal of optocoupler QU1 passes sequentially through power transformation resistance RT4 and resistance R19 and is connected with digital power，Second conduction terminal of optocoupler QU2 is connected with second conduction terminal of optocoupler QU1，The second conduction terminal ground connection of optocoupler QU2，First conduction terminal of optocoupler QU2 is connected with audion Q3 base stage by resistance R17，Digital power is connected by the colelctor electrode of resistance R15 and audion Q3，Digital power is connected by first conduction terminal of resistance R16 and optocoupler QU2，It is connected by electric capacity C9 between the colelctor electrode of audion Q3 and the emitter stage of audion Q3，The colelctor electrode of audion Q3 is connected with a port of CPU allocation manager module.
- nullThe most according to claim 1 and machine inverter，It is characterized in that: described constant current constant voltage drives module to include resonance control chip U1、Operation amplifier chip U2、Audion Q4、Audion Q5、Audion Q6、Resistance R20、Resistance R21、Resistance R22、Resistance R23、Resistance R24、Resistance R25、Resistance R26、Resistance R27、Resistance R28、Resistance R29、Resistance R30、Resistance R31、Resistance R32、Resistance R33、Resistance R34、Resistance R35、Resistance R36、Resistance R37、Resistance R38、Power transformation resistance RT5、Electric capacity C11、Electric capacity C12、Electric capacity C13、Electric capacity C14、Electric capacity C15、Electric capacity C16、Electric capacity C17、Electric capacity C18、Electric capacity C19、Electric capacity C20、Electric capacity C21、Diode D13、Diode D14、Diode D15 and diode D16，The emitter stage of audion Q4 passes through resistance R20 ground connection，The base stage of audion Q4 is connected by the colelctor electrode of resistance R23 and audion Q4，The colelctor electrode of audion Q4 is connect digitally by electric capacity C11，The colelctor electrode of audion Q4 is connected by the CURLIM end of resistance R21 and resonance control chip U1，The colelctor electrode of audion Q4 also VREF end with resonance control chip U1 is connected，The base stage of audion Q4 passes sequentially through diode D13 and diode D14 and is connected with the CT end of resonance control chip U1，The CT end of resonance control chip U1 passes through electric capacity C12 ground connection，The CS-end ground connection of resonance control chip U1，The CS+ end of resonance control chip U1 passes sequentially through resistance R22 and resistance R20 ground connection，The NI end of resonance control chip U1 is connected with first end of resistance R27，First end of resistance R27 is respectively by electric capacity C15 and resistance R26 ground connection，Second end of resistance R27 is respectively by resistance R25 and electric capacity C16 ground connection，Second end of resistance R27 is electrically connected by a port of resistance R28 and CPU allocation manager module，The INV end of resonance control chip U1 respectively with first end of electric capacity C13、First end of electric capacity C14、First end of electric capacity C17 and first end of resistance R29 connect，Second end of electric capacity C13 is connected by second end of resistance R24 and electric capacity C14，Second end of electric capacity C14 is connected with the COMP of resonance control chip U1，Second end of electric capacity C17 is connected by the OUTB end of resistance R30 and operation amplifier chip U2，Second end of resistance R29 is connected with the OUTB end of operation amplifier chip U2，Second end of resistance R29 also passes sequentially through resistance R31、Power transformation resistance RT5 and resistance R32 ground connection，Second end of resistance R29 is also connected with first end of electric capacity C18，Second end of electric capacity C18 is connected with the INB-end of operation amplifier chip U2，Second end of electric capacity C18 passes through resistance R32 ground connection，The INB+ end of operation amplifier chip U2 is connect digitally by resistance R33，The INB+ end of operation amplifier chip U2 is connected by the GND end of electric capacity C19 and operation amplifier chip U2，The SHUTDOWM end of resonance control chip U1 electrically connects with a port of CPU allocation manager module，The VIN end of resonance control chip U1 is connected with digital power，The VIN end of resonance control chip U1 is respectively by electric capacity C20 and electric capacity C21 ground connection，The VIN end of resonance control chip U1 is connected with the VC end of resonance control chip U1，The BOUT end of resonance control chip U1 is connected by the base stage of resistance R35 and audion Q5，It is connected by resistance R37 between the colelctor electrode of audion Q5 and the base stage of audion Q5，The base stage of audion Q5 is connected with the anode of diode D15，The negative electrode of diode D15 is connected with the emitter stage of audion Q5，The colelctor electrode of audion Q5 is connected with power conversion module pwm signal port，The colelctor electrode of audion Q5 connects digitally，The GND end ground connection of resonance control chip U1，The AOUT end of resonance control chip U1 is connected by the base stage of resistance R36 and audion Q6，The colelctor electrode of audion Q6 connects digitally，It is connected by resistance R38 between the base stage of audion Q6 and the colelctor electrode of audion Q6，The base stage of audion Q6 is connected with the anode of diode D16，The emitter stage of audion Q6 is connected with the negative electrode of diode D16，The emitter stage of audion Q6 is connected with another pwm signal port of power conversion module，The RT end of resonance control chip U1 passes through resistance R34 ground connection；Described resonance control chip U1 is UCC2806DW chip；Described operation amplifier chip U2 is LM358 chip.
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| CN201410633399.7A CN104506060B (en) | 2014-11-12 | A kind of also machine inverter |
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| CN201410633399.7A CN104506060B (en) | 2014-11-12 | A kind of also machine inverter |
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