CN106604495A - Start device and start control method of cold light bulb - Google Patents
Start device and start control method of cold light bulb Download PDFInfo
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- CN106604495A CN106604495A CN201611040584.0A CN201611040584A CN106604495A CN 106604495 A CN106604495 A CN 106604495A CN 201611040584 A CN201611040584 A CN 201611040584A CN 106604495 A CN106604495 A CN 106604495A
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- cold bulb
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- Circuit Arrangement For Electric Light Sources In General (AREA)
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Abstract
The invention discloses a start device and start control method of a cold light bulb. The start device comprises a current sampling circuit, a microprocessor control unit, an IGBT work loop and the cold light bulb arranged in the IGBT work loop; an output path is added to the current sampling circuit to output a collected current value to the microprocessor control unit; after short-circuit protection, the microprocessor control unit can identity and process whether the cold light bulb is shorted as well as whether to load the cold light bulb; and the microprocessor control unit implements short-circuit, protection, unlocking and power supply so that current passes the cold light bulb continuously, the resistance of a filament is increased continuously with heating and reaches a rated value finally, and the cold light lamp is loaded successfully. After the cold light bulb is shorted, protection actions can be executed effectively, and the safety of a power generator and the cold light bulb are protected.
Description
Technical field
The present invention relates to a kind of generator application field, more particularly, to a kind of opening for cold bulb of portable fuel electromotor
Dynamic device and control method.
Background technology
With the growth of the remote region improvement of people's living standards, field work and mobile operational process amount, small portable
The demand of fuel electric generator increasingly increases.Portable fuel electromotor is to drive electrical power generators by prime mover of oil-burning machine
Dynamic power machine.The alternating current that fuel electric generator is produced, through rectification circuit the DC voltage of about 400V or so is converted into, then is passed through
Inverter circuit exports the alternating current of general 230V, 50HZ, with for users to use.However, process of the fuel electric generator in work
In, it may appear that overheated, under-voltage, situations such as electrical equipment is short-circuit, generator control system can take corresponding protective measure.Typically
, load (electrical equipment etc.) is when there are short-circuit conditions, and it is excessive to easily cause short circuit current, more than device components rated current
Value, easily produces substantial amounts of heat, so as to burn out electromotor and load.Generator test will stop output to after short-circuit conditions
Voltage, quits work.By taking 5KW fuel electric generators as an example, output voltage is 230V, and rated current is I=P/U=5000/230=
21.7A, is calculated with 2 times of amount of redundancy, i.e. when maximum current is 21.7*2=43.4A, when generator control system is detected
When electric current is more than 43.4, then judge that connecing load there occurs short circuit, electromotor will stop walking altogether, to protect electromotor and load.
But in actual applications, the load equipment that electromotor often connects is luminaire, generator loading terminates electric filament lamp.Traditional is white
Vehement lamp is, by resistance wire electrified regulation to incandescent state, using heat radiation the light source of visible ray to be sent.The resistance of electric filament lamp
Silk has with the characteristic that high resistance is incrementally increased that rises of temperature.Under the state of cooling, resistance value very little, with the rising of temperature,
Rated power (60W, 100W, 200W etc.) is reached during thermal balance.Therefore, when electric filament lamp is just accessed, electric current can be caused because resistance is little
It is very big, short circuit is easily mistaken for, start short-circuit protection so as to trigger fuel electric generator, electromotor stops working, and accesses bulb light
Failure.But the resistance wire resistance of electric filament lamp increases with continuing to increase for electric current, and the high current persistent period is moment, generate electricity
The short-circuit protection action of machine belongs to false judgment, therefore, it is impossible to start electric filament lamp, it is impossible to provide illumination.
The content of the invention
It is an object of the invention to overcome the defect of prior art, there is provided a kind of starter and controlling party of cold bulb
Method, increases in current sampling circuit and exports all the way, and the current information for collecting is exported into microprocessor control unit, and
And can be after short-circuit protection is carried out, microprocessor control unit is further real short circuit to cold bulb or adds refrigerating bulb
It is identified and processes.
For achieving the above object, the present invention proposes following technical scheme：A kind of starter of cold bulb, including electric current adopts
Sample circuit, microprocessor control unit, IGBT performance loops and the cold bulb in IGBT performance loops, the electric current is adopted
Sample circuit is connected with microprocessor control unit, and the current information for collecting is exported to microprocessor control unit；It is described
Microprocessor control unit is connected with IGBT performance loops, and according to the current information IGBT performance loops are controlled, and starts cold
Bulb.
Preferably, the IGBT performance loops include IGBT driving chips, several IGBT and several phase inverters, the IGBT
It is connected with the IGBT driving chips by phase inverter.
Preferably, the grid of the IGBT is connected with phase inverter.
Preferably, the IGBT driving chips are connected with microprocessor control unit, the microprocessor control unit
Control IGBT driving chips further drive corresponding IGBT on or off.
Preferably, the IGBT quantity be 4, mono- group of each two IGBT and per group control one cross streams electricity output.
Preferably, it is provided with diode between the IGBT source electrodes and drain electrode.
A kind of startup control method of cold bulb, the control method comprises the steps：
S1, current information in current sampling circuit acquisition circuit, and it is input to microprocessor control unit；
S2, if the current information is more than preset value, microprocessor control unit starts short-circuit protection, stops output；
S3, after postponing a period of time T1, microprocessor control unit exports unlocking signal to unlock IGBT performance loops；
S4, after postponing one end time T2, microprocessor control unit exports SPWM signals into IGBT performance loops, described
IGBT performance loops output AC electricity is to cold bulb；
S5, repeats step S2～step S4 so that the resistance wire resistance of cold bulb reaches rated value, cold bulb loading
Success.
Preferably, if methods described also includes that current value is less than pre-set current value, fuel electric generator normal work.
Preferably, methods described also sends SPWM signals into IGBT performance loops including microprocessor control unit, institute
IGBT output ACs electricity is stated, if there is short circuit in IGBT performance loops, step S2～step S4 is re-executed.
Preferably, if methods described also includes that the times N for re-executing step S2～step S4 is more than preset times,
There is short circuit in cold bulb systems loop, fuel electric generator quits work.
Preferably, the times N of the delay time T1 and T2 and execution step S2～step S4 is entered according to following steps
Row adjustment：
A), current information in current sampling circuit collection output loop, and be input to be compared in comparator, and
The changing value of comparative result and comparative result is input into into BP neural network, while comparative result is input in the lump to PID controls
In device processed；
B), the BP neural network is constantly corrected according to the changing value of the comparative result and comparative result by self study
The connection weight of each unit in BP networks, in output result to PID controller, the PID controller adjusts fuel electric generator
Pid parameter delay time T1 and T2, and preset times N.
The invention has the beneficial effects as follows：On device, exported all the way by increasing in current sampling circuit, will be collected
Current information export to microprocessor control unit, after hardware circuit carries out short-circuit protection, microprocessor control unit lead to
Crossing software flow carries out the real short circuit of equipment or adds the identification and process of refrigerating bulb；In method, microprocessor control is single
Unit is by software flow control so that cold bulb normally starts, and after cold bulb systems are short-circuited, can effectively hold
Row protection act, protects the safety of electromotor and cold bulb systems.
Description of the drawings
Fig. 1 is the fuel electric generator structural representation of the present invention；
Fig. 2 is the IGBT performance loop circuit diagrams of the present invention；
Fig. 3 is that the cold bulb Booting sequence diagram of the present invention is intended to；
Fig. 4 is that the Self-learning PID Controller control fuel electric generator based on BP neural network of the present invention starts cold bulb
Schematic diagram.
Reference：1st, fuel electric generator, 2, rectification circuit, 3, inverter circuit, 4, load, 5, current sampling circuit, 6,
Short-circuit detecting circuit, 7, protection circuit, 8, analog to digital conversion circuit, 9, microprocessor control unit, 10, drive circuit, 11, control
Circuit, 12, IGBT driving chips, 13, IGBT-S1,14, IGBT-S2,15, IGBT-S3,16, IGBT-S4,17, phase inverter S1,
18th, phase inverter S2,19, phase inverter S3,20, phase inverter S4.
Specific embodiment
Below in conjunction with the accompanying drawing of the present invention, clear, complete description is carried out to the technical scheme of the embodiment of the present invention.
With reference to Fig. 1, the cold bulb starter of disclosed oil-burning machine electromotor, including fuel electric generator 1, rectification
The load 4 that circuit 2, inverter circuit 3, and inverter circuit 3 are connected, in the present embodiment, the load 4 is cold bulb.It is described
Fuel electric generator 1 is connected with rectification circuit 2, and rectification circuit 2 is connected with inverter circuit 3, produces when fuel electric generator 1 works
Alternating current, is converted into DC voltage after rectification circuit 2, then through inverter circuit 3, DC voltage can be converted to into load
4 alternating currents for using；The output loop that the inverter circuit 3 is connected with load 4 is provided with current sampling circuit 5, the electricity
Stream sample circuit 5 is used to gather the current information in output loop；The current sampling circuit 5 by short-circuit detecting circuit 6 with
Protection circuit 7 is connected, and is connected with microprocessor control unit 9 by analog to digital conversion circuit 8, by the current information for collecting
Be input into short-circuit detecting circuit 6 to judge output loop in connect load 4 whether be short-circuited, be input into microprocessor control
Unit processed 9 is to judge whether real short circuit still offered load 4；The microprocessor control unit 9 is respectively by driving
Circuit 10, control circuit 11 are connected with inverter circuit 3, and further, the microprocessor control unit 9 is also by protecting electricity
Road 7 is connected with inverter circuit 3, when the current information of the collection of current sampling circuit 5 meets condition, microprocessor control unit
9 perform corresponding action, start cold bulb.
Specifically, produce alternating current when fuel electric generator 1 works to be input into rectification circuit 2, by changing after rectification circuit 2
Into DC voltage, then by inverter circuit 3, DC voltage is converted into into the alternating current that cold bulb can be used.Current sample electricity
Road 5 is all the way input into the current information for collecting to short-circuit detecting circuit 6, is input into all the way to microprocessor control unit 9, this
In embodiment, the current information is current value, if 4 loops of load are short-circuited during failure, what current sampling circuit 5 was collected
Current value is more than setting value, then short-circuit detecting circuit 6 judges that 4 equipment of load are short-circuited, and produces short-circuit protection trigger extremely
Protection circuit 7, and then trigger protection circuit 7 carries out short-circuit protection, final plant closure inverter circuit 3, fuel electric generator 1 stops work
Make.
In order that cold bulb can be on fuel electric generator 1 by normal load, the present invention is by current sampling circuit 5
Increase is exported all the way, is input into microprocessor control unit 9, in the case of the triggering short-circuit protection of short-circuit detecting circuit 6, further
Judge the cold bulb connected in output loop be real short circuit or plus refrigerating bulb.
IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) performance loop bag
Include drive circuit 10, control circuit 11, protection circuit 7, and inverter circuit 3, the IGBT performance loops and microprocessor control
Unit processed 9 is connected, and the microprocessor control unit 9 controls IGBT performance loops so as to start cold bulb.IGBT works back
Road circuit diagram as shown in Fig. 2 the IGBT performance loops include IGBT driving chips 12, several IGBT, and several phase inverters,
The IGBT is connected by phase inverter with the IGBT driving chips 12.
Specifically, the IGBT driving chips 12 are connected with the microprocessor control unit 9, and the IGBT drives core
Piece 12 includes 5 pins, and HIN, LIN pin is connected with microprocessor control unit 9, for being input into SPWM signals
(Sinusoidal Pulse Width Modulation, sinusoidal pulse width modulation), ITRIP pins equally with microprocessor control
Unit 9 is connected, and for controlling the blocking of IGBT driving chips 12, further controls the turn-on and turn-off of IGBT, PIA, PIB
For output pin, PIA the and PIB pins are connected respectively by phase inverter with IGBT, control the turn-on and turn-off of IGBT.This
In embodiment, the IGBT quantity is 4, i.e. IGBT-S1 13, and IGBT-S2 14, IGBT-S3 15, IGBT-S4 16 are each
Diode is equipped between the source electrode of individual IGBT and drain electrode, four IGBT are divided into into two groups, and every group of IGBT controls one are intersected
Stream electricity output.
Further, the concrete connected mode of each IGBT is：The source electrode of IGBT-S1 13, IGBT-S2 14 connects jointly
The positive pole of DC source, the drain electrode of IGBT-S3 15, IGBT-S4 16 connects the negative pole of DC source, the leakage of IGBT-S1 13 jointly
Pole is connected with the source electrode of IGBT-S3 15, is connected to the source electrode of one end of load 4, the drain electrodes of IGBT-S2 14 and IGBT-S4 16
It is connected, is connected to the other end of load 4.The grid of IGBT-S1 13, IGBT-S2 14, IGBT-S3 15, IGBT-S4 16
It is connected to the output pin PIA and PIB of IGBT drivers by a phase inverter respectively, wherein IGBT-S1 13 passes through phase inverter
S1 17 is connected to PIA pins, and IGBT-S2 14 is connected to PIB pins by phase inverter S2 18, and IGBT-S3 15 is by anti-phase
Device S3 19 is connected to PIB pins, and IGBT-S4 16 is connected to PIA pins by phase inverter S4 20.
When the electric current that short-circuit detecting circuit 6 is measured is more than preset value, then short-circuit protection circuit 7 is triggered, electromotor stops
Only output voltage, microprocessor control unit 9 receives the high current value of analog to digital conversion circuit input, is detected simultaneously by short-circuit protection
After action, the startup of cold bulb is performed.
Specifically, the current value to microprocessor control unit 9 is input into higher than pre-set current value (as pre-set current value is
When 0.5A), drive the current comparator inside IGBT driving chips 12 to overturn rapidly by ITRIP pins, promote chip internal
Fault logic exports low level, blocks the output of input pulse signal processor so that the output whole of PIA, PIB pin
For low level, therefore IGBT-S1 13, IGBT-S2 14, IGBT-S3 15, IGBT-S4 16 is all off, protects power tube,
Without output voltage.
After breaking down, the output of the internal logic unit of IGBT driving chips 12 keeps failure locking state, only faulty
After removing, namely current value be less than setting value when, the input high level in HIN the and LIN pins of IGBT driving chips 12, ability
Enough release the failure locking state of internal logic unit.Because without voltage output, output current is reduced to zero, current sample electric current
The current value for collecting is less than preset value, then unlock the output of the input pulse signal processor in IGBT driving chips 12, makes
PIA and PIB pins are output as high level, further make 4 IGBT conductings.
For a period of time after T1, microprocessor control unit 9 to the HIN and LIN pins of IGBT driving chips 12 are input into for time delay
High level, makes the output unlocking state of the fault logic of IGBT internal drives.
For a period of time after T2, microprocessor control unit 9 sends SPWM signals for time delay, and control IGBT driving chips 12 enter
One step drives 4 power tube IGBT-S1 13, IGBT-S2 14, IGBT-S3 15, the alternate conductions of IGBT-S4 16 and shut-off, produces
The biphase modulation waveform of life, final output voltage is adjustable, changeable frequency two-phase alternating current, is input into load 4.
Current sampling circuit 5 continues executing with current value sampling, and current value is exported to short-circuit detecting circuit 6 and microprocessor
Control unit 9, if in the output loop for detecting current value still overrate when, circulation perform short circuit-protection-solution
Lock-power supply, repeats n times, if the value of N is more than number of times set in advance, wherein N is the integer more than or equal to 1, then be judged to true
Real short circuit, fuel electric generator 1 quits work.Otherwise, during continuous repeated priming, cold bulb it is lasting by electric current,
Resistance wire resistance constantly increases with heating, is finally reached rated value, and bulb is loaded successfully, the normal work of fuel electric generator 1.
T1, T2, N are then different according to the watt level difference of fuel electric generator 1.
A kind of startup control method of cold bulb, comprises the steps：
S1, current information in the collection output loop of current sampling circuit 5, and it is input to microprocessor control unit 9；
S2, if the current value is more than preset value, microprocessor control unit 9 starts short-circuit protection, stops output；
S3, after postponing a period of time T1, microprocessor control unit 9 exports unlocking signal to unlock IGBT performance loops；
S4, after postponing a period of time T2, microprocessor control unit 9 exports SPWM signals into IGBT performance loops, institute
IGBT performance loops output AC electricity is stated to cold bulb；
S5, repeats step S2～step S4 so that the resistance wire resistance of cold bulb reaches rated value, cold bulb loading
Success.
Specifically, the present invention is exported all the way in cold bulb start-up course by increasing in current sampling circuit 5, will
It is exported to microprocessor control unit 9, processes its unit control IGBT performance loop to start cold bulb by micro-control.As schemed
Shown in 3 flow charts, current sampling circuit 5 first carries out the sampling of electric current, and is input to micro-control processing unit, if collecting
If current value be less than pre-set current value, the normal work of fuel electric generator 1, otherwise, start short-circuit protection, stop output electricity
Pressure.Drive the current comparator inside IGBT driving chips 12 to overturn rapidly by ITRIP pins, promote chip internal failure
Logical block exports low level, blocks the output of input pulse signal processor so that the output of PIA, PIB pin is all low
Level, therefore IGBT-S1 13, IGBT-S2 14, IGBT-S3 15, IGBT-S4 16 is all off, power tube is protected, without defeated
Go out voltage.
For a period of time after T1, microprocessor control device unit exports unlocking signal to IGBT driving chips 12, performs for time delay
Unblock IGBT driving chips 12, release failure locking state, i.e., microprocessor control unit 9 is by IGBT driving chips 12
HIN and LIN pin input high levels, make the output unlocking state of the fault logic of IGBT internal drives.
After one section of T2 of time delay, microprocessor control unit 9 exports SPWM signals to IGBT driving chips 12, and IGBT drives core
Piece 12 controls IGBT alternate conductions, final output voltage.
There is the presence of electric current in loop, current sampling circuit 5 continues executing with sampling, export to short-circuit detecting circuit 6 and micro-
Processor control unit 9, judges whether short circuit, if existing short circuit in loop, re-executes step S2～step
S4, that is, perform short circuit-protection-unblock-power supply, if the times N for performing is more than preset times, judges load 4 equipment short circuit,
Fuel electric generator 1 quits work, and otherwise, by continuously performing short circuit-protection-unblock-power supply, cold lamp resistance silk is not open close
Electricity, resistance increases and reaches rated value with heating, then cold bulb starts successfully.
In cold bulb start-up course, delay time T1 and T2, and perform the times N of short circuit-protection-unblock-power supply
With the difference of fuel electric generator 1 output size itself, and start cold bulb when watt level difference, need to carry out
Corresponding adjustment, in the present embodiment, fuel electric generator is controlled by arranging based on the Self-learning PID Controller of BP neural network
1.As shown in figure 4, the Self-learning PID Controller control fuel electric generator 1 based on BP neural network starts the schematic diagram of cold bulb,
Current value in the collection output loop of current sampling circuit 5, and is input to be compared in comparator, and by comparative result
It is input into into BP neural network with the changing value of comparative result, while comparative result is input in the lump into PID controller.
BP neural network constantly study and training in cold bulb start-up course, corrects at any time the company of each unit in BP networks
Weights are connect, the corresponding result of output of BP neural network is made into PID controller, the PID of the PID controller regulator generator
Parameter, namely delay time T1 and T2, and perform the times N of short circuit-protection-unblock-power supply.BP neural network is through training
Afterwards, being capable of real-time optimization pid control parameter so that cold bulb start-up course is one by secretly to bright normal processes, flicker free
Sense.
The present invention passes through the output for increasing current sampling circuit 5 all the way on hardware circuit so as to export to microprocessor
Control unit 9, carries out the whether real short circuit of judgement equipment or adds refrigerating bulb by software flow control, sends out with protection
Motor, it is ensured that the safe advantage of electromotor and equipment.
The technology contents and technical characteristic of the present invention have revealed that as above, but those of ordinary skill in the art still may base
Make a variety of replacements and modification without departing substantially from spirit of the present invention in teachings of the present invention and announcement, therefore, the scope of the present invention
The content that should be not limited to disclosed in embodiment, and various replacements and modification without departing substantially from the present invention should be included, and for this patent Shen
Please claim covered.
Claims (10)
1. a kind of starter of cold bulb, it is characterised in that including current sampling circuit, microprocessor control unit, IGBT
Performance loop and the cold bulb in IGBT performance loops, the current sampling circuit is connected with microprocessor control unit
Connect, the current information for collecting is exported to microprocessor control unit；The microprocessor control unit works back with IGBT
Road is connected, and according to the current information IGBT performance loops are controlled, and starts cold bulb.
2. the starter of cold bulb according to claim 1, it is characterised in that the IGBT performance loops unit includes
IGBT driving chips, several IGBT and several phase inverters, the IGBT is connected by phase inverter with the IGBT driving chips.
3. the starter of cold bulb according to claim 2, it is characterised in that the grid of the IGBT and phase inverter phase
Connection.
4. the starter of cold bulb according to claim 2, it is characterised in that the IGBT driving chips and microprocessor
Device control unit is connected, microprocessor control unit control IGBT driving chips so that drive corresponding IGBT to turn on or
Shut-off.
5. the starter of cold bulb according to claim 2, it is characterised in that the IGBT quantity is 4, each two
Mono- group and every group IGBT of IGBT controls a cross streams electricity output.
6. the starter of cold bulb according to claim 2, it is characterised in that between the source electrode of the IGBT and drain electrode
It is provided with diode.
7. a kind of startup control method of cold bulb, it is characterised in that methods described comprises the steps：
S1, current information in current sampling circuit collection output loop, and it is input to microprocessor control unit；
S2, if the current information is more than preset value, microprocessor control unit starts short-circuit protection, stops output voltage；
S3, after postponing a period of time T1, microprocessor control unit exports unlocking signal to unlock IGBT performance loops；
S4, after postponing a period of time T2, microprocessor control unit exports SPWM signals into IGBT performance loops, the IGBT
Performance loop output AC electricity is to cold bulb；
S5, repeats step S2～step S4 so that the resistance wire resistance of cold bulb reaches rated value, and cold bulb is loaded into
Work(.
8. the startup control method of cold bulb according to claim 7, it is characterised in that methods described also includes microprocessor
Device control unit sends SPWM signals into IGBT performance loops, the IGBT output ACs electricity, if depositing in IGBT performance loops
In short circuit, then step S2～step S4 is re-executed.
9. cold bulb according to claim 7 starts control method, it is characterised in that if methods described also includes holding again
When the times N of row step S2～step S4 is more than preset times, then there is short circuit in cold bulb systems loop, fuel electric generator stops
Only work.
10. cold bulb according to claim 9 starts control method, it is characterised in that the delay time T1 and T2, with
And the times N of execution step S2～step S4 is adjusted according to following steps：
A), current information in current sampling circuit collection output loop, and be input to be compared in comparator, and will compare
The changing value of relatively result and comparative result is input into into BP neural network, while comparative result is input in the lump to PID controller
In；
B), the BP neural network constantly corrects BP nets according to the changing value of the comparative result and comparative result by self study
The connection weight of each unit in network, in output result to PID controller, the PID controller adjusts the PID ginsengs of fuel electric generator
Number delay time T1 and T2, and preset times N.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040584.0A CN106604495B (en) | 2016-11-21 | 2016-11-21 | The starter and control method of cold light bulb |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040584.0A CN106604495B (en) | 2016-11-21 | 2016-11-21 | The starter and control method of cold light bulb |
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| CN106604495B CN106604495B (en) | 2019-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110677960A (en) * | 2019-11-05 | 2020-01-10 | 西安拓尔微电子有限责任公司 | Flash device quick start circuit and control method |
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|---|---|
| CN106604495B (en) | 2019-03-15 |
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