CN103312250B - A kind of alternating current generator regulator and method - Google Patents
A kind of alternating current generator regulator and method Download PDFInfo
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- CN103312250B CN103312250B CN201310286621.6A CN201310286621A CN103312250B CN 103312250 B CN103312250 B CN 103312250B CN 201310286621 A CN201310286621 A CN 201310286621A CN 103312250 B CN103312250 B CN 103312250B
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Abstract
A kind of alternating current generator regulator, including Digital Voltage Regulator and alternating current generator, the Digital Voltage Regulator are connected with alternating current generator, and the Digital Voltage Regulator also includes pulse width modulation（PWM）Signal isolation circuit, automatically exciting circuit and IGBT power amplifier tubes, the filter circuit are parallel-connected to automatically exciting circuit, IGBT power amplifier tubes and Switching Power Supply respectively, and the microprocessor is also associated with voltage trim port and voltage adjusts difference port.Further relate to a kind of alternating current generator pressure regulation method, including voltage control mode and automatically exciting method.The present invention is adapted to the electromotor of various different electrical power inputs and different capacity, with fast response time, control accuracy is high, excitation performance is good, strong antijamming capability, also has small volume in addition, using safe, easy to operate, degree of regulation is high, spreadability is wide and output voltage stabilization.
Description
Technical field
The present invention relates to alternating current generator voltage control technology field, be particularly suited for it is a kind of it is full-automatic it is brushless, have brush exchange
Generator Voltage Regulation device and method.
Background technology
Power generation unit as a kind of electric supply be widely used factory, mine, market, hospital, mansion, field make
Industry, steamer etc., power generation unit generate electricity by powered belt engine alternator (i.e. electric ball) of electromotor, and kinetic energy is converted into electricity
A kind of equipment of energy.Voltage regulator arrangement is the pith of electromotor, and it has pivotal role to ensureing power supply quality.
At present, domestic alternating current generator matching used voltage regulator using simulation control mode realize, its
Using average voltage value detection method, that is, detect the peak-to-peak value of alternating voltage waveform, when voltage waveform is distorted, peak-to-peak value
Voltage can not truly reflecting voltage waveform change curve and voltage waveform area effective voltage value.So simulation pressure regulator can be sent out
Biopsy indeterminacy really, causes generator output voltage control inaccurate；Another its excitation poor performance, there is temperature drift phenomenon, which is to electricity
The shortcomings of road technological requirement height, inconvenient debugging, defencive function are few；In addition, with the development of science and technology, it is a large amount of non-linear negative
Set out existing (such as LED, USP power supplys, frequency conversion equipment etc.), the control method of simulation is more difficult to meet load to alternating current generator
Output voltage requires smoothly to require.And foreign countries have producer to develop the voltage controller of the mixed type of simulation+numeral, stable state is born
The relative voltage regulator better than domestic production analog form of its performance in the case of load, but simulate in electromotor impact off-load
Control part plays fast reaction, so still occurring that when wave distortion is serious voltage detecting is inaccurate, another its technical controlling is multiple
Miscellaneous, expensive, volume is big, excitation mode must be that it encourages mode electromotor, and working power need to be supplied with magneto
Electricity.
Such as 102150357 A of foreign patent publication number CN, the method for the excitation of entitled regulation alternating current generator and
Device, a kind of voltage of three phase places of the alternating current that hybrid voltage-regulation control alternating current generator is produced.Digital voltage is adjusted
The meansigma methodss that device is that each phase place produces RMS-voltage are saved, and the voltage according to alternating current is produced error with frequency ratio.RMS
Average voltage order is modified.The voltage commands changed are by the analog voltage that rectification is carried out to alternator output voltage
Then actuator process, the output voltage were used to change voltage commands within a period of time, to produce regulation voltage commands, should
Adjust voltage commands and determine the current level for being used to encourage alternating current generator.Which decrease rising for the voltage regulator
Energy performance is encouraged, and controls speed typically, interference free performance is not strong.
The content of the invention
The present invention is simple there is provided a kind of fast response time, precise control, control structure in order to solve the above problems, excitation
Performance is good, the alternating current generator regulator of strong antijamming capability and method.
In order to solve the above problems, the technical solution used in the present invention is：A kind of alternating current generator regulator, including number
Word voltage regulator and alternating current generator, the Digital Voltage Regulator are connected with alternating current generator, the alternating current generator bag
Excitation mechanism and stator coil are included, the excitation mechanism also includes magnet exciting coil, armature coil, rectification circuit and main excitation wire
Circle, the Digital Voltage Regulator also include Switching Power Supply, microprocessor, filter circuit and over-current detection circuit, micro- place
Reason device is connected with USB port, CAN, display window and input through keyboard again, and the Digital Voltage Regulator is also believed including PWM
Number isolation circuit, automatically exciting circuit and IGBT power amplifier tubes, the filter circuit are parallel-connected to automatically exciting electricity respectively
Road, IGBT power amplifier tubes and Switching Power Supply, the microprocessor are also associated with finely tuning port and adjust difference port.Described tune is poor
Port can allow the mutual inductance of user's external impressed current easily realize idle automatic distribution function, realize two or more sending out
Motor parallel runing adjustment and it is incorporated into the power networks；Described pressure regulation port can pass through software design patterns outside connected switch amount and potentiometer
The mode of (adjustable resistance) is finely adjusted control to alternator output voltage；Described USB port can be used for and PC
Communication (PC refers to PC), sets voltage that alternating current generator export, frequency inflection point, low by PC using software is arranged
Frequency gradient, start that pressure limiting, pressure rising time, overvoltage protection, overexcitation current protection, transient state overexcitation electric current, voltage is sagging, electric current
CT no-load voltage ratios, pid value, start liquid crystal display screen show LOGO changes etc., facilitate user scene to modify to parameter according to the actual requirements,
It is also convenient for OEM vendor and changes autonomous brand LOGO information；The CAN is that user's external connection module is capable of achieving by this port
The output voltage of parameter or control alternating current generator is read in long-range communication.
In order to obtain the output voltage amount of electromotor, the microprocessor is connected with voltage isolation change-over circuit, the electricity
Pressure isolation change-over circuit is connected with three-phase alternating current output voltage by electric power connection line.Described voltage isolates change-over circuit by three
Phase voltage phase place is by big valued resistor blood pressure lowering and operational amplifier so that the high voltage that microprocessor is exported with alternating current generator
Isolation is quite in, ensures to control the safety of components and parts.
In order to effectively ensure the unfailing performance of microprocessor, the microprocessor is connected to pwm signal isolation circuit, institute
State pwm signal isolation circuit and be connected to amplifying circuit, the amplifying circuit is connected to IGBT power amplifier tubes, so that low pressure control
Signal processed is completely isolated with controlled high-voltage signal.
In order to improve the processing speed of microprocessor and calculate accurately data, the microprocessor adopts high accuracy mould
Number conversion high-speed microprocessors, the microprocessor by three-phase alternating voltage, frequency analog signal be converted to digital three phase voltage,
Frequency data, and the real-time real effective of three-phase voltage is accurately calculated by software mode, described three-phase voltage really has in real time
The true reflecting voltage waveform area effective voltage value of valid value energy, calculates the electrical quantity needed for items in conjunction with digital PID, and completes
Each parameter is processed and controlled.And microprocessor in-built solid state store tools, related data can be stored.This kind of storage
Instrument can normally preserve user data under unexpected powering-off state, after powering again, recover automatically original setup parameter.
In order to set up automatically a stable excitation power supply, the automatically exciting circuit include power amplification circuit and
Mu balanced circuit, the automatically exciting circuit can set up Digital Voltage Regulator in the case where alternating current generator remanent magnetism voltage is extremely low
Required startup power supply.Meanwhile, meet the use of polytype alternating current generator.
For convenience to rectifier power supply, the filter circuit is connected with commutator, and the commutator is connected by power supply
Line is to stator coil.
A kind of alternating current generator pressure regulation method, including voltage control mode and automatically exciting method, its step are as follows：
A. by detecting that the meansigma methodss of the real-time real effective of three-phase alternating voltage and the digital voltage order of setting are compared
Digital voltage error value is relatively produced and produces, digital voltage error value passes through mathematical algorithm and Digital PID Algorithm produces digital voltage
Adjustment order；Digital voltage adjustment order be quantified as pulse width modulation (PWM) signal and by pwm signal isolation circuit with
Controlling the field supply of the excitation mechanism of alternating current generator, the output AC voltage of alternating current generator rings IGBT power amplifier tubes
Should be in the size of field supply；
B. by automatically exciting circuit and IGBT power amplifier tube Parallel Control alternator field currents, send out in exchange
When electric moter voltage starts to build pressure, the power amplification circuit from automatically exciting circuit is to alternator field coil input current；
C. after preliminary Voltage Establishment, limited-voltage control is carried out by the mu balanced circuit of automatically exciting circuit, Switching Power Supply is to micro-
Processor provides required working power, and microprocessor is started working, digital voltage adjustment order control IGBT power amplifier tubes,
The output voltage of alternating current generator will rise to specified voltage；When alternating current generator output voltage (i.e. stator coil to
Digital Voltage Regulator provide supply voltage) more than mu balanced circuit limit value when, automatically exciting circuit is deactivated；
The digital voltage order is defeated from the desired voltage values, the signal of fine setting port input, tune difference port for setting
The signal for entering；The desired voltage values are to be input into by keyboard entry method or soft by arranging using USB port communication modes
Part input gained；Fine setting port input signal changing one of signal of digital voltage order, by microprocessor
Device A/D ports, the d. c. voltage signal or pulse signal of the input of fine setting port are converted into digital signal to change digital voltage
Order；It is described to adjust the signal that difference port is input into change one of signal of digital voltage order, by microprocessor A/D
Port, the ac current signal of fine setting port input is converted into digital signal to change digital voltage order.
Parameter setting is carried out in order to further facilitate Digital Voltage Regulator, the employing USB port communication modes pass through
Arranging software can carry out system parameter setting to Digital Voltage Regulator, and the USB port using PC main frames is adjusted to digital voltage
Section device provides the working power of 5V, i.e. Digital Voltage Regulator also can be read out to which with PC when not working
And setup parameter.
The present invention's effective is：Using the high-speed microprocessor of high precision analogue conversion as core devices, by handing over
Stream electromotor three-phase voltage phase-detection is designed using the algorithm of real-time real effective, with reference to digital pid algorithm mode
Digital Voltage Regulator, which is adapted to the electromotor of the input of various different electrical powers and different capacity, and it is excessively electric to be provided with electromotor
The function such as pressure warning, magnet exciting coil excessively stream, detection line open circuit protection.Meanwhile, with precise control, fast response time, excitation
Can good, strong antijamming capability, using safe, easy to operate, degree of regulation is high and output voltage stabilization.
Description of the drawings
Fig. 1 is the circuit connection diagram of alternating current generator regulator of the present invention；
Fig. 2 is the circuit diagram of automatically exciting circuit of the present invention；
Fig. 3 is the structural representation of microprocessor of the present invention；
Fig. 4 is the real voltage oscillogram of alternating current generator loading of the present invention or off-load.
Fig. 5 is the structural representation of whole device of the present invention.
In figure：1- Digital Voltage Regulators, 101- voltages isolation change-over circuit, 102- display windows, 103-PWM signals every
From circuit, 104- amplifying circuits, 105-IGBT power amplifier tubes, 106- over-current detection circuits, 107- automatically exciting circuits,
1071- power amplification circuits, 1072- mu balanced circuits, 108- Switching Power Supplies, 109- filter circuits, 110- commutators, the micro- places of 111-
Reason device, 1111- three-phase voltage phase place real effective digital voltage detectors, 1112- PIDs (PID) control numeral electricity
Road, 112- input through keyboard, 113-USB ports, 114-CAN buses, 115- fine settings port, 116- adjust difference port, 2- alternative electric generations
Machine, 21- excitation mechanisms, 211- rotor main shafts, 212- magnet exciting coils, 213- rotors, 214- armature coils, 215- rectification circuits,
The main magnet exciting coils of 216-, 22- stator coils, 3- electric power connection lines, А В С-three-phase alternating current output voltage, 4- electromotors.
Specific embodiment
Below in conjunction with the accompanying drawings alternating current generator regulator of the present invention is described in further detail：
As shown in Fig. 1,2,3,4,5：A kind of alternating current generator regulator of the present invention, including digital voltage regulation
Device 1 and alternating current generator 2, described Digital Voltage Regulator 1 are connected with alternating current generator 2, and described alternating current generator 2 includes
Excitation mechanism 21 and stator coil 22, described excitation mechanism 21 also include magnet exciting coil 212, armature coil 214, rectification circuit
215 and main magnet exciting coil 216, described Digital Voltage Regulator 1 includes Switching Power Supply 108, microprocessor 111, filter circuit
109 and over-current detection circuit 106.Described filter circuit 109 is connected with commutator 110, and commutator 110 is connected by power supply
The wherein biphase centre tap of 3 connecting stator coil 22 of wiring.It is in order to obtain the output voltage amount of alternating current generator 2, described
Microprocessor 111 is connected with voltage isolation change-over circuit 101, and described voltage isolation change-over circuit 101 passes through electric power connection line 3
It is connected with three-phase alternating current output voltage А В С.And three-phase voltage is passed through big valued resistor by voltage isolation change-over circuit 101
Blood pressure lowering and operational amplifier so that microprocessor 111 is suitable with the high voltage that alternating current generator 2 is exported to be in isolation, from
And also ensure to control the safety of components and parts.And microprocessor 111 is connected to pwm signal isolation circuit 103, meanwhile, pwm signal
Isolation circuit 103 is connected to amplifying circuit 104, and amplifying circuit 104 is connected to IGBT power amplifier tubes 105, so that low pressure
Control signal is completely isolated with controlled high-voltage signal, improves 111 reliability of microprocessor.Described microprocessor 111 is adopted
Be high precision analogue conversion high-speed microprocessor, the microprocessor by three-phase alternating voltage phase place, frequency analog signal turn
Digital three phase voltage, frequency data are changed to, and the real-time real effective of three-phase voltage is accurately calculated by software mode, with reference to complete
Digital PID calculates the electrical quantity needed for items, and completes each parameter is processed and controlled.Meanwhile, microprocessor 111 connects again
It is connected to USB port 113, CAN 114, display window 102 and input through keyboard 112.Described Digital Voltage Regulator 1 is also wrapped
Pwm signal isolation circuit 103, automatically exciting circuit 107 and IGBT power amplifier tubes 105 are included, meanwhile, filter circuit 109 is distinguished
It is parallel-connected to automatically exciting circuit 107, IGBT power amplifier tubes 105 and Switching Power Supply 108.Described automatically exciting circuit
107 include power amplification circuit 1071 and mu balanced circuit 1072, meanwhile, automatically exciting circuit 107 is in 2 remanent magnetism of alternating current generator electricity
The startup power supply set up needed for Digital Voltage Regulator 1 in the case that pressure is extremely low.Meanwhile, meet polytype alternating current generator 2
Use.Described microprocessor 111 is also associated with finely tuning port 115 and adjusts difference port 116.Described tune difference port 116 can
To allow the mutual inductance of user's external impressed current easily realize idle automatic distribution function, two or more electromotors are realized simultaneously
Join runing adjustment and be incorporated into the power networks；Described fine setting port 115 can pass through software design patterns outside connected switch amount and potentiometer is (adjustable
Resistance) mode control is finely adjusted to 2 output voltage of alternating current generator；Described USB port 113 can be used for logical with PC
News (PC refers to PC), set voltage that alternating current generator 2 export, frequency inflection point, low by PC using software is arranged
Frequency gradient, start that pressure limiting, pressure rising time, overvoltage protection, overexcitation current protection, transient state overexcitation electric current, voltage is sagging, electric current
CT no-load voltage ratios, pid value, boot LOGO change etc., facilitate user scene to modify to parameter according to the actual requirements, are also convenient for OEM
Manufacturer changes autonomous brand LOGO information；It is long-range that the CAN 114 is that user's external connection module is capable of achieving by this port
Communication is read or controls the output parameter of alternating current generator 2.
A kind of alternating current generator pressure regulation method, including voltage control mode and automatically exciting method, its step are as follows：
A. by detecting that the meansigma methodss of the real-time real effective of three-phase alternating voltage and the digital voltage order of setting are compared
Digital voltage error value is relatively produced and produces, digital voltage error value passes through mathematical algorithm and Digital PID Algorithm produces digital voltage
Adjustment order；Described digital voltage adjustment order is quantified as pulse width modulation (PWM) signal and by pwm signal isolation circuit
103 and IGBT power amplifier tubes 105 controlling the field supply of the excitation mechanism 21 of alternating current generator 2, alternating current generator 2 it is defeated
Go out size of the alternating voltage in response to field supply；
B. by automatically exciting circuit 107 and 105 Parallel Control alternating current generator of IGBT power amplifier tubes, 2 magnet exciting coil
212 electric current, when 2 voltage of alternating current generator starts to build pressure, from automatically exciting circuit 107 to 2 magnet exciting coil of alternating current generator
212 input currents；
C., after preliminary Voltage Establishment, limited-voltage control, switch electricity are carried out by the mu balanced circuit 1072 of automatically exciting circuit 107
Source 108 provides required working power to microprocessor 111, and microprocessor 111 is started working, digital voltage adjustment order control
IGBT power amplifier tubes 105, the output voltage of alternating current generator 2 will rise to specified voltage；It is defeated when alternating current generator 2
When going out voltage (supply voltage that i.e. stator pitch of the laps 22 is provided to Digital Voltage Regulator 1) more than mu balanced circuit limit value, automatically
Exciting circuit 107 is deactivated；
Digital Voltage Regulator 1 carries out parameter setting for convenience, and described Voltage Cortrol order is from the phase for setting
Hope magnitude of voltage, the signal of fine setting port 115 input, the signal for adjusting the input of difference port 116；Described desired voltage values are by key
Disk is input into 112 modes and is input into or using 113 communication modes of USB port as obtained by arranging software input；Described fine setting port
115 input signals by microprocessor 111A/D ports, will finely tune end changing one of signal of digital voltage order
The d. c. voltage signals or pulse signal of 115 input of mouth are converted into digital signal to change digital voltage order；Described tune is poor
The current signal of the input of port 116 electromotor output changing one of signal of digital voltage order, by microprocessor
Device 111A/D ports, the ac current signal that fine setting port 115 is input into is converted into digital signal to change digital voltage order.
Parameter setting, 113 communication modes of employing USB port are carried out in order to further facilitate Digital Voltage Regulator 1
System parameter setting can be carried out to Digital Voltage Regulator 1 by arranging software, and it is electric to numeral using the USB port of PC main frames
Pressure actuator 1 provides the working power of 5V, i.e. Digital Voltage Regulator 1 also can be entered to which with PC when not working
Row reads and setup parameter.
When 4 rotor driven of electromotor, 213 main shaft 211 is rotated, the remanent magnetism voltage Jing for exporting generation in alternating current generator 2 is whole
Become DC source after current circuit 215 and be divided into three tunnels after circuit 109 after filtering, the first via is transferred to Switching Power Supply 108, second
Road is transferred to IGBT power amplifier tubes 105, and as remanent magnetism voltage is extremely low, switching power circuit 108 cannot start, microprocessor
111 can not enter firstization, therefore, IGBT power amplifier tubes 105 are off state, and which temporarily can not encouraging to excitation mechanism 21
Magnetic coil 212 provides electric current.Meanwhile, the 3rd tunnel sends automatically exciting circuit 107 to.Now, Q6 is conducting state, Q6 emitter stages
Electricity is approximately equal to its collector voltage (difference 0.7V or so) Q6 colelctor electrodes and is connected with R5, R6, R7, and the voltage of Q6 colelctor electrodes is extremely low,
Voltage stabilizing Z1 is in anti-pressure limiting state, and Q7 is off state, produces one with Q6 emitter stages with equipotential in the colelctor electrode of Q7
Trigger voltage VSS, trigger voltage VSS are connected to Q2 base stages, if Q2 base voltages more than 2.1V (each crystal triode touch
Send out pilot drop and be about 0.7V) when, large power triode Q4 conductings, the then DC current that remanent magnetism voltage is produced flow into excitation mechanism 21
Magnet exciting coil 212, i.e. with increase, the DC voltage after commutator 110 is also with increasing for 2 output end voltage of alternating current generator
Greatly；When DC voltage increases to 24V or so, stabilivolt Z1 starts working, Q7 conductings, and it is zero potential that VSS trigger voltages are drawn,
Q2, Q3, Q4 are turned off, then 212 electric current of magnet exciting coil flowed in alternating current generator 2 is turned off, 2 output voltage of alternating current generator
Start to reduce, also with reduction, when 24V is fallen below, voltage stabilizing Z1 is in anti-pressure limiting shape to the DC voltage after commutator 110 again
State, Q6 raise in off state VSS voltages not only but also start to trigger Q2, Q3, Q4 triode ON, so circulate work, that is, hand over
The stream output of electromotor 2 can be controlled in a stable magnitude of voltage, and the rectified device 110 of this stable magnitude of voltage and filtered electrical
109 metapedes of road is worked with exciting switch power supply 108.Switching Power Supply 108 is excited and successfully will provide system to Digital Voltage Regulator 1 afterwards
System working power, microprocessor 111 will be into initialization；After the completion of initialization, PID (PID) control numeral electricity
Road 1112 carries out PID arithmetic and controlled output pwm signal, and pwm signal is through pwm signal isolation circuit 103 and amplifying circuit 104
Afterwards, IGBT power amplifier tubes 105 are driven, meanwhile, IGBT power amplifier tubes 105 are started working, and control which to excitation mechanism
21 212 inflow current of magnet exciting coil, meanwhile, the output end voltage of alternating current generator 2 will be with being increased to desired voltage values.R2
It is serially connected with stabilivolt Z4, R3 is linked together with the base stage of audion Q5, the emitter stage of Q5 and the base stage of audion Q6
Link together with line R4 connect DC voltage negative pole (), when DC voltage rises to 47V, stabilivolt Z2 start working,
Q5 is turned on, Q6 shut-offs, and mu balanced circuit 1072 and large power triode Q4 are turned off, the magnetic of the excitation mechanism 21 of alternating current generator 2
Field intensity is controlled IGBT power amplifier tubes 105 to realize by microprocessor 111, meanwhile, the effect of R5 resistance is to prevent voltage stabilizing
Circuit is turned off rear trigger voltage VSS and suspends and trigger Q2, Q3, Q4 work.
As shown in Figure 4：Its voltage waveform nonideal sine wave after 2 bringing onto load of alternating current generator, in loading or off-load
In wave distortion occurs, especially nonlinear load plus-minus carry when wave distortion can become apparent from, wave distortion is any
Moment may all occur, and when Er Qiejia, off-load, its cycle can also give birth to the change of Instantaneous Phase.
Claims (7)
1. a kind of alternating current generator regulator, including Digital Voltage Regulator and alternating current generator, the digital voltage are adjusted
Device is connected with alternating current generator, and the alternating current generator includes excitation mechanism and stator coil, and the excitation mechanism also includes encouraging
Magnetic coil, armature coil, rectification circuit and main magnet exciting coil, the Digital Voltage Regulator include Switching Power Supply, microprocessor,
Filter circuit and over-current detection circuit, it is defeated that the microprocessor is connected with USB port, CAN, display window and keyboard again
Enter, it is characterised in that：The Digital Voltage Regulator also includes pwm signal isolation circuit, automatically exciting circuit and IGBT power
Amplifier tube, the filter circuit are connected respectively to automatically exciting circuit, IGBT power amplifier tubes and Switching Power Supply, the microprocessor
Device is also associated with fine setting port and adjusts difference port, and described tune difference port is idle automatic for allowing user's external impressed current mutual inductance to realize
Distribution function, so as to realizing two or more parallel running of generators regulations and being incorporated into the power networks；Described fine setting port
For control is finely adjusted by way of software design patterns outside connected switch amount and potentiometer to alternator output voltage；It is described
Automatically exciting circuit includes the power amplification circuit being connected with each other and mu balanced circuit, is put with IGBT power by automatically exciting circuit
Big pipe Parallel Control alternator field current, when alternator voltage starts to build pressure, by the work(of automatically exciting circuit
Rate amplifying circuit is to alternator field coil input current.
2. alternating current generator regulator according to claim 1, it is characterised in that：The microprocessor is connected with voltage
Isolation change-over circuit, the voltage isolation change-over circuit are connected with three-phase alternating current output voltage by electric power connection line.
3. alternating current generator regulator according to claim 1, it is characterised in that：The microprocessor is connected to PWM
Signal isolation circuit, the pwm signal isolation circuit are connected to amplifying circuit, and the amplifying circuit is connected to IGBT power amplifications
Pipe.
4. alternating current generator regulator according to claim 1, it is characterised in that：The filter circuit is connected with rectification
Device, the commutator are connected to stator coil by electric power connection line.
5. a kind of alternating current generator pressure regulation method, including voltage control mode and automatically exciting method, its step are as follows：
A. product is compared by detecting the meansigma methodss of the real-time real effective of three-phase alternating voltage and the digital voltage order of setting
And digital voltage error value is produced, digital voltage error value passes through mathematical algorithm and Digital PID Algorithm produces digital voltage adjustment
Order；The digital voltage adjustment order is quantified as pulse width modulation (PWM) signal and by pwm signal isolation circuit and IGBT
Power amplifier tube controlling the field supply of the excitation mechanism of alternating current generator, the output AC voltage of alternating current generator in response to
The size of field supply；
B. by automatically exciting circuit and IGBT power amplifier tube Parallel Control alternator field currents, in alternating current generator
When voltage starts to build pressure, the power amplification circuit from automatically exciting circuit is to alternator field coil input current；
C. after preliminary Voltage Establishment, limited-voltage control is carried out by the mu balanced circuit of automatically exciting circuit, Switching Power Supply is to microprocessor
Device provides required working power, and microprocessor is started working, digital voltage adjustment order control IGBT power amplifier tubes, exchanges
The output voltage of electromotor will rise to specified voltage；When the output voltage of alternating current generator exceedes mu balanced circuit limit value
When, automatically exciting circuit is deactivated.
6. according to claim5Described alternating current generator pressure regulation method, it is characterised in that：The digital voltage order is derived from
The desired voltage values of setting, the signal of fine setting port input, the signal for adjusting the input of difference port, described tune difference port is used to allowing use
Open air connects Current Mutual Inductance and realizes idle automatic distribution function, so as to realize that two or more parallel running of generators are adjusted
Be incorporated into the power networks；Described fine setting port for by way of software design patterns outside connected switch amount and potentiometer to alternating current generator
Output voltage is finely adjusted control；The desired voltage values are input into by keyboard entry method or using USB port communication side
Formula is as obtained by arranging software input；Fine setting port input signal is changing one of letter of digital voltage order
Number, by microprocessor A/D ports, the d. c. voltage signal or pulse signal of the input of fine setting port are converted into into digital signal
Change digital voltage order；It is described to adjust the signal that difference port is input into change one of signal of digital voltage order, lead to
Microprocessor A/D ports are crossed, the ac current signal of fine setting port input is converted into digital signal to change digital voltage life
Order.
7. according to claim6Described alternating current generator pressure regulation method, it is characterised in that：The employing USB port communication side
Formula can carry out system parameter setting by arranging software to Digital Voltage Regulator, and using PC main frames USB port to numeral
Voltage regulator provides the working power of 5V, i.e. Digital Voltage Regulator also can be entered to which with PC when not working
Row reads and setup parameter.
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| FR3013528B1 (en) * | 2013-11-19 | 2016-01-01 | Valeo Equip Electr Moteur | INTEGRATED PORTIONAL CONTROL RING FOR A DIGITAL REGULATOR DEVICE OF A ROTATING ELECTRIC MACHINE WITH EXCITATION OF A MOTOR VEHICLE |
| CN104009689B (en) * | 2014-05-08 | 2016-08-17 | 贵州航天林泉电机有限公司 | A kind of pressure regulator utilizing electromotor remanent magnetism to build pressure |
| CN105207555B (en) * | 2015-09-18 | 2018-03-09 | 重庆铭贝科技有限公司 | A kind of Digital-typed Generator automatic regulating system and its method |
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| CN111953252B (en) * | 2019-12-31 | 2022-04-22 | 南京航空航天大学 | Synchronous sampling method for three-stage brushless synchronous motor variable-frequency alternating-current power generation system |
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| CN101610062A (en) * | 2009-07-15 | 2009-12-23 | 南京航空航天大学 | Self-excitation mixed-excitation synchronous motor alternating current power-generating system and control method thereof |
| CN102386829A (en) * | 2011-08-24 | 2012-03-21 | 南京航空航天大学 | Starting power generation system for electric automobile |
| CN203368391U (en) * | 2013-07-10 | 2013-12-25 | 广州孚鼎自动化控制设备有限公司 | AC generator voltage regulating apparatus |
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| US8294429B2 (en) * | 2009-05-22 | 2012-10-23 | Honeywell International Inc. | Robust digital voltage regulator |
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| CN101610062A (en) * | 2009-07-15 | 2009-12-23 | 南京航空航天大学 | Self-excitation mixed-excitation synchronous motor alternating current power-generating system and control method thereof |
| CN102386829A (en) * | 2011-08-24 | 2012-03-21 | 南京航空航天大学 | Starting power generation system for electric automobile |
| CN203368391U (en) * | 2013-07-10 | 2013-12-25 | 广州孚鼎自动化控制设备有限公司 | AC generator voltage regulating apparatus |
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