CN104932600B - There is the IGCT electromagnetism triggering high frequency electric source apparatus of status monitoring function - Google Patents
There is the IGCT electromagnetism triggering high frequency electric source apparatus of status monitoring function Download PDFInfo
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Abstract
The present invention discloses a kind of IGCT electromagnetism triggering high frequency electric source apparatus with status monitoring function, including the source of high frequency current generation module for generating and export source of high frequency current according to control signal, also include the current source state monitoring module being connected with the outfan of source of high frequency current generation module, current source state monitoring module includes interconnective current amplitude detector unit and State-output unit, the source of high frequency current of current amplitude detector unit Real-time Collection source of high frequency current signal generating unit output carries out amplitude detection, output amplitude testing result；Amplitude detection result is transmitted by State-output unit, and according to the state of amplitude detection result output source of high frequency current.The present invention can realize the real-time monitoring of current source state while generating source of high frequency current, has simple in construction, required low cost, applies flexible and that security performance is high advantage.
Description
Technical field
The present invention relates to IGCT electromagnetism triggering technique field, particularly relate to a kind of IGCT electromagnetism triggering high frequency electric source apparatus with monitoring function.
Background technology
Along with the fast development of industry, the application in industry unsteady flow field of the half control type device IGCT is the most universal.The triggering mode of IGCT is broadly divided into electromagnetism triggering and photoelectricity triggers two kinds at present, wherein has the advantage of high reliability and low cost, small size due to electromagnetism triggering mode, and it is widely used in 10kV and following converter system.At present the electric magnetically triggered system of IGCT is mainly made up of source of high frequency current trigger element and the on high-tension side coupling unit of low-pressure side, wherein the function of source of high frequency current trigger element is the high frequency electric source signal that the order according to control system generates fixed frequency, driving and trigger IGCT, it occupies to close consequence in systems.But, during generating at source of high frequency current, control system cannot learn the duty of source of high frequency current, bears too high voltages owing to individual other IGCT or whole group of IGCT are not turned on, easily cause IGCT breakdown, thus the IGCT of whole system can be worked and produce potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is that the technical problem existed for prior art, the IGCT electromagnetism triggering high frequency electric source apparatus with monitoring function that the present invention provides a kind of simple in construction, required low cost, application flexibly and security performance is high, it is possible to realize the real-time monitoring of current source state while generating source of high frequency current.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is:
A kind of IGCT electromagnetism triggering high frequency electric source apparatus with status monitoring function, including the source of high frequency current generation module for generating and export source of high frequency current according to control signal, also include the current source state monitoring module being connected with the outfan of described source of high frequency current generation module, described current source state monitoring module includes interconnective current amplitude detector unit and State-output unit, described in described current amplitude detector unit Real-time Collection, the source of high frequency current of source of high frequency current generation module output carries out amplitude detection, output amplitude testing result；Described amplitude detection result is transmitted by described State-output unit, and according to the state of described amplitude detection result output source of high frequency current.
As a further improvement on the present invention: described current amplitude detector unit includes current source voltage Acquisition Circuit, difference amplifier, low pass filter and the reference voltage comparator being sequentially connected with, described current source voltage Acquisition Circuit gathers the voltage of the source of high frequency current of described source of high frequency current generation module output, after the described voltage collected sequentially passes through described difference amplifier, low pass filter and reference voltage comparator, the amplitude detection result of output source of high frequency current.
As a further improvement on the present invention: described State-output unit includes fiber optic emitter TX1 and launches drive circuit, and the positive pole of described fiber optic emitter TX1 accesses power supply by the first resistance R33, and negative pole connects described transmitting drive circuit；Described transmitting drive circuit includes the first phase inverter D8, dividing potential drop electronic circuit and the switching device being sequentially connected with, the amplitude detection result of described current amplitude detector unit output, after described first phase inverter D8, dividing potential drop electronic circuit, switching device, outputting drive voltage is to described fiber optic emitter TX1, sends described amplitude detection result and the power supply state of display output source of high frequency current by described fiber optic emitter TX1.
As a further improvement on the present invention: described source of high frequency current generation module includes that the optical fiber being sequentially connected with receives unit, filter unit, coding unit and driver element, described optical fiber receives unit and receives optical control signal and be converted to enable signal, enables signal to described coding unit after the output filtering of described filter unit；Described coding unit enables signal after receiving described filtering, controls to generate drive pulse signal output to described driver element；Described driver element drives output source of high frequency current according to described drive pulse signal.
As a further improvement on the present invention: described optical fiber receives unit and includes fiber optic receiver HP1 and outfan with described fiber optic receiver HP1 is connected respectively pull-up resistor R2 and the second phase inverter D1, the level signal of output when described fiber optic receiver HP1 receives optical control signal, is converted to level after described pull-up resistor R2, the second phase inverter D1 and enables signal output.
As a further improvement on the present invention: described filter unit includes two inputs and door D2 and charge-discharge circuit, one end of described charge-discharge circuit connects described optical fiber and receives the outfan of unit, the other end connects one of them input of described two inputs and door D2, and described two inputs are connected described optical fiber and receive the outfan of unit with another input of door D2；Described charge-discharge circuit includes the first electric capacity C3, charging resistor R3 and the discharge loop being made up of the second resistance R4 being connected in series and the first diode V2, described charging resistor R3 is connected in parallel with described discharge loop, one end of described first electric capacity C3 connects described discharge loop, charging resistor R3, other end ground connection respectively.
As a further improvement on the present invention: described driver element includes that the mosfet driver D4 being sequentially connected with, bleeder circuit, MOSFET pipe T1 and current-limiting resistance R8, described current-limiting resistance R8 access power supply by shorting stub；Output drive signal is to described MOSFET pipe T1 after described mosfet driver D4, bleeder circuit for the drive pulse signal of described coding unit output, and described MOSFET pipe T1 is open-minded under the driving of described driving signal, exports source of high frequency current；Described current-limiting resistance R8 carries out current limliting to the source of high frequency current of output；
As a further improvement on the present invention: described driver element also includes the magnetic saturation protection circuit being made up of the second diode V3 connected and the 3rd resistance R9, described magnetic saturation protection circuit accesses the two ends for couples high frequency current source energy to the magnetic ring transformer of IGCT by shorting stub.
As a further improvement on the present invention: described coding unit includes the frequency adjustment circuit that agitator D3 and the input with described agitator D3 are connected；Described frequency adjustment circuit includes the 4th resistance R5, the 5th resistance R6 and the second electric capacity C4, Enable Pin R of described agitator D3 connects the outfan of described filter unit, described 4th resistance R5 connects the input of described 5th resistance R6, the DISCH end of agitator D3 respectively, the outfan of described 5th resistance R6 connects the TRICH end of described agitator D3, the second electric capacity C4, the other end ground connection of described second electric capacity C4 respectively.
As a further improvement on the present invention: also include the power supply module being connected respectively with described source of high frequency current generation module, current source state monitoring module, described power supply module includes power supply chip D9 and the input energy storage filter circuit being connected respectively, output voltage regulation circuit and output energy storage filter circuit with described power supply chip D9, and described output voltage regulation circuit includes the 6th resistance R41, the 7th resistance R42 being connected respectively with the FB end of power supply chip D9.
Compared with prior art, it is an advantage of the current invention that:
1) state of the source of high frequency current of generation is monitored in real time by the present invention by current source state monitoring module, the amplitude of the source of high frequency current of source of high frequency current generation module output is detected in real time by current amplitude detector unit, the amplitude detected is sent by State-output unit, obtained the state of source of high frequency current by the amplitude output detected simultaneously, make control system when sending control instruction and controlling to generate source of high frequency current, corresponding current source state can be obtained simultaneously, thus ensure that current source performs trouble free service under controllable state, it is effectively improved the reliability of whole IGBT group system；
2) present invention further current amplitude detector unit is by current source voltage Acquisition Circuit, difference amplifier, the amplitude of low pass filter detection source of high frequency current, through reference voltage comparator relatively after produce digital signal output, simple in construction, can obtain directly representing the amplitude information of source of high frequency current state, thus source of high frequency current state can be directly obtained according to the amplitude information of detection；
3) present invention further State-output unit includes fiber optic emitter and launches drive circuit, fiber optic emitter is driven to send amplitude information by launching drive circuit according to amplitude detection result, it is easy to the monitoring information of control system real-time reception source of high frequency current state, also be can get the power supply state of source of high frequency current by the luminance of fiber optic emitter simultaneously, it is thus possible to realize the real-time monitoring of source of high frequency current state and power supply state simultaneously, it is ensured that the work safe, controlled of source of high frequency current；
4) present invention further source of high frequency current generation module receives unit, filter unit, coding unit and driver element composition single-ended flyback high frequency electric source circuit by optical fiber, received unit by optical fiber and receive the light pulse of external control system, be converted to enable signal, unit, coding unit are converted to the pulse signal of fixed frequency after filtering, being received the pulse signal produced by driver element drives MOSFET to export source of high frequency current, simple in construction, conveniently apply, and the generating mode of current source is flexible.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment IGCT electromagnetism triggering high frequency electric source apparatus.
Fig. 2 is the electrical block diagram that in the present embodiment, optical fiber receives unit.
Fig. 3 is the electrical block diagram of filter unit in the present embodiment.
Fig. 4 is the electrical block diagram of coding unit in the present embodiment.
Fig. 5 is the electrical block diagram of driver element in the present embodiment.
Fig. 6 is the electrical block diagram of current amplitude detector unit in the present embodiment.
Fig. 7 is the electrical block diagram of State-output unit in the present embodiment.
Fig. 8 is the electrical block diagram of power supply module in the present embodiment.
Marginal data: 1, source of high frequency current generation module；11, optical fiber receives unit；12, filter unit；121, charge-discharge circuit；13, coding unit；131, frequency adjustment circuit；14, driver element；141, bleeder circuit；142, magnetic saturation protection circuit；2, current source state monitoring module；21, current amplitude detector unit；211, difference amplifier；212, low pass filter；213, reference voltage comparator；22, State-output unit；221, drive circuit is launched；2221, dividing potential drop electronic circuit；3, power supply module；31, output voltage regulation circuit.
Detailed description of the invention
Below in conjunction with Figure of description and concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
As shown in Figure 1, the present embodiment has the IGCT electromagnetism triggering high frequency electric source apparatus of status monitoring function, including the source of high frequency current generation module 1 for generating and export source of high frequency current according to control signal, also include the current source state monitoring module 2 being connected with the outfan of source of high frequency current generation module 1, current source state monitoring module 2 includes interconnective current amplitude detector unit 21 and State-output unit 22, the source of high frequency current of current amplitude detector unit 21 Real-time Collection source of high frequency current generation module 1 output carries out amplitude detection, output amplitude detection signal；Amplitude detection result is transmitted by State-output unit 22, and according to the state of amplitude detection result output source of high frequency current.The present embodiment arranges above-mentioned each module on high frequency electric source plate, high frequency electric source plate is by optical fiber and control system communication, the control instruction startup source of high frequency current generation module 1 realizing receiving control system generates source of high frequency current, and sends amplitude detection result to control system.
The present embodiment detects the amplitude of the source of high frequency current of source of high frequency current generation module 1 output in real time by current amplitude detector unit 21, the amplitude detected is sent by State-output unit 22, obtained the state of source of high frequency current by the amplitude output detected simultaneously, realize the real-time monitoring of source of high frequency current state, make control system when sending control instruction and controlling to start source of high frequency current generation module 1, the current source state of correspondence can be obtained simultaneously, thus ensure that current source performs trouble free service under controllable state.Outside control system is according to the current source state obtained in real time, can determine whether out that current source the most normally works, after detection determines some current source fault, control to close in time the trigger command of all current sources, thus ensure that indivedual IGCT does not punctures, it is possible to it is effectively improved the security reliability of whole IGBT group system.
See Fig. 1, the present embodiment high-frequency current source generation module 1 includes that the optical fiber being sequentially connected with receives unit 11, filter unit 12, coding unit 13 and driver element 14, optical fiber receives unit 11 and receives optical control signal and be converted to enable signal, enables signal to coding unit 13 after the output filtering of filtered unit 12；Coding unit 13 enables signal after accepting filter, and controls to generate drive pulse signal and exports to driver element 14；Driver element 14 drives output source of high frequency current according to drive pulse signal.
The present embodiment receives unit 11 especially by optical fiber and receives the light pulse of external control system, and is converted to level signal as enabling signal output.As shown in Figure 2, in the present embodiment, optical fiber receives unit 11 and includes fiber optic receiver HP1 and outfan with fiber optic receiver HP1 is connected respectively pull-up resistor R2 and the second phase inverter D1, the level signal of output when fiber optic receiver HP1 receives optical control signal, is converted to level after pull-up resistor R2, the second phase inverter D1 and enables signal U1 output.The input of the present embodiment pull-up resistor R2 accesses 15V power supply, and the output voltage of fiber optic receiver HP1 is pulled to 15V, thus provides stable low and high level for the second phase inverter D1.Fiber optic receiver HP1 two ends are provided with the Voltage stabilizing module being made up of the 8th resistance R1 and stabilivolt V1, and wherein stabilivolt V1 is in parallel with fiber optic receiver HP1, are used for the supply voltage voltage stabilizing of fiber optic receiver HP1 in safety range.The input of fiber optic receiver HP1, outfan further respectively have the first filter capacitor C1, the second filter capacitor C2, for filtering the clutter in low and high level transformation process.When fiber optic receiver HP1 receives optical signal, output then drags down, i.e. output low level, after said structure, the second phase inverter D1 forms high level, thus realizes receiving light and be i.e. converted to the logic of high level.
The present embodiment filters the external interference signals of one fixed width by filter unit 12, and after output filtering, level enables signal U2.As shown in Figure 3, in the present embodiment, filter unit 12 includes two inputs and door D2 and charge-discharge circuit 121, one end of charge-discharge circuit 121 connects optical fiber and receives the outfan of unit 11, the other end connects one of them input of two inputs and door D2, and two inputs are connected optical fiber and receive the outfan of unit 11 with another input of door D2；Charge-discharge circuit 121 includes the first electric capacity C3, charging resistor R3 and the discharge loop being made up of the second resistance R4 being connected in series and the first diode V2, charging resistor R3 is connected in parallel with discharge loop, one end of first electric capacity C3 connects discharge loop, charging resistor R3, other end ground connection respectively.When the level enable signal U1 that optical fiber receives unit 11 output is high level, charge to the first electric capacity C3 by charging resistor R3, and only after the voltage on the first electric capacity C3 reaches certain value, high level could be exported with door D2, wherein filtering time is determined by R3, C3；When the level enable signal U1 that optical fiber receives unit 11 output is low level, the voltage of the first electric capacity C3 is discharged by the outfan of the second phase inverter D1 that discharge loop, optical fiber receive unit 11, thus the external interference signals of one fixed width, bursts of error can be filtered by said structure, make to enable generation source of high frequency current because of pulse by mistake, improve the interference free performance of system.
Level after filtering is enabled signal U2 by coding unit 13 by the present embodiment and is converted to the pulse signal U3 of fixed frequency.As shown in Figure 4, in the present embodiment, coding unit 13 includes the frequency adjustment circuit 131 that agitator D3 and the input with agitator D3 are connected.Agitator D3 specifically uses NE555 type agitator, and wherein DISCH is discharge end (DIS), and it is the output of chip internal discharge tube, and has unsettled and ground connection two states, is also by the Determines of input；TRICH is the input of comparator under chip internal.Frequency adjustment circuit 131 includes the 4th resistance R5, the 5th resistance R6 and the second electric capacity C4, Enable Pin R of agitator D3 connects the outfan of filter unit 12, the outfan of the 4th resistance R5 connects the DISCH end of the input of the 5th resistance R6, agitator D3 respectively, the outfan of the 5th resistance R6 the TRICH end of connection oscillator D3, the second electric capacity C4, the other end ground connection of the second electric capacity C4 respectively.After the filtering of link, level signal U2 accesses Enable Pin R of agitator D3 after filtering, when after filtering, level enable signal U2 is high level, then agitator D3 enables effectively, the pulse signal U3 of output certain frequency and dutycycle is as drive pulse signal, wherein frequency and the dutycycle of pulse signal U3 is determined by frequency adjustment circuit 131, when after filtering, level enable signal U2 is low level, then agitator D3 resets, agitator D3 output low level.
The present embodiment receives, by driver element 14, the pulse signal U3 that coding unit 13 produces, and drives MOSFET to export source of high frequency current.As it is shown in figure 5, in the present embodiment, mosfet driver D4 that driver element 14 includes being sequentially connected with, bleeder circuit 141, MOSFET pipe T1 and current-limiting resistance R8, current-limiting resistance R8 accesses power supply by shorting stub；Coding unit 13 output drive pulse signal after mosfet driver D4, bleeder circuit 141 output drive signal to MOSFET pipe T1, MOSFET pipe T1 drive signal driving under open-minded, export source of high frequency current；Current-limiting resistance R8 carries out current limliting to the source of high frequency current of output.By arranging current-limiting resistance R8 at outfan, can simultaneously work as regulating the effect of current source di/dt with the amplitude in cut-off current source.Driver element 14 also includes that the magnetic saturation protection circuit 142 being made up of the second diode V3 connected and the 3rd resistance R9, magnetic saturation protection circuit 142 access the two ends for couples high frequency current source energy to the magnetic ring transformer of IGCT by shorting stub.The magnetic saturation protection circuit 142 that second diode V3 and the 3rd resistance R9 is constituted turns off the moment at current source, makes the electric current in magnet ring reduce to rapidly zero, it is to avoid to cause magnetic saturation.
The present embodiment is additionally provided with the 3rd filter capacitor C8 between bleeder circuit 141 and MOSFET pipe T1；It is arranged in parallel the 4th filter capacitor C9 at current-limiting resistance two ends, has been used for eliminating the high frequency cost on current-limiting resistance R8；One end of MOSFET pipe T1 connects sampling resistor R10, for gathering the source of high frequency current of output.The present embodiment mosfet driver D4 specifically uses IR2110S type mosfet driver, when the pulse signal U3 that coding unit 13 produces is high level, the gate leve outfan LO of mosfet driver D4 also exports high level, after the filtering of bleeder circuit 141 and the 3rd filter capacitor C8, directly drive MOSFET T1 open-minded, power supply passes through current-limiting resistance R8, MOSFET pipe T1, sampling resistor R10 forms current source path in shorting stub, by outside magnetic ring transformer S1, source of high frequency current energy in shorting stub is coupled to IGCT side by S2 etc., realize the open-minded of IGCT.
The present embodiment receives unit 11 by optical fiber and receives the light pulse of external control system, export after being converted to level signal to filter unit 12, level signal after unit 12 after filtering is converted to the pulse signal of fixed frequency by coding unit 13, driver element 14 receives the pulse signal that coding unit 13 produces, and drives MOSFET to export source of high frequency current.Constitute single-ended flyback high frequency electric source circuit by above-mentioned each unit, simple in construction, conveniently apply, and the generating mode of current source is flexible.
In the present embodiment, detected the amplitude of the source of high frequency current of driver element 14 output by current amplitude detector unit 21, after relatively, produce digital signal U4 output.As shown in Figure 5,6, in the present embodiment, current amplitude detector unit 21 includes current source voltage Acquisition Circuit, difference amplifier 211, low pass filter 212 and the reference voltage comparator 213 being sequentially connected with, current source voltage Acquisition Circuit gathers the voltage of the source of high frequency current of source of high frequency current generation module 1 output, after the voltage collected sequentially passes through difference amplifier 211, low pass filter 212 and reference voltage comparator 213, the amplitude detection result of output source of high frequency current.Current source voltage Acquisition Circuit is specially the sampling resistor R10 accessing source of high frequency current generation module 1 outfan, is gathered the source of high frequency current of source of high frequency current generation module 1 output by sampling resistor R10.The present embodiment low pass filter 212 is specially second-order low-pass filter.
After the voltage that sampling resistor R10 collects is amplified by difference amplifier 211, output to low pass filter 212 filters radio-frequency component therein, filtered signal output compares to reference voltage comparator 213, filtered signal is set up the reference voltage obtained compared with by the 9th resistance R18, Zener diode V5, if more than reference voltage, then reference voltage comparator 213 exports high level；If less than reference voltage, then output low level.The amplitude of source of high frequency current is detected by current source voltage Acquisition Circuit, difference amplifier 211, low pass filter 212, through reference voltage comparator 213 relatively after produce digital signal output, simple in construction, can obtain directly representing the amplitude information of source of high frequency current state.
In the present embodiment, digital signal U4 current amplitude detector unit 21 produced by State-output unit 22 is sent to control system, and exports the state of source of high frequency current.As it is shown in fig. 7, State-output unit 22 includes fiber optic emitter TX1 and launches drive circuit 221 in the present embodiment, the positive pole of fiber optic emitter TX1 accesses power supply by the first resistance R33, and negative pole connects launches drive circuit 221；Launch the first phase inverter D8, dividing potential drop electronic circuit 2221 and switching device that drive circuit 221 includes being sequentially connected with, the amplitude detection result of current amplitude detector unit 21 output, after the first phase inverter D8, dividing potential drop electronic circuit 2221, switching device, outputting drive voltage is to fiber optic emitter TX1, sends amplitude detection result and the power supply state of display output source of high frequency current by fiber optic emitter TX1.Outside control system can directly obtain source of high frequency current state according to the current source state amplitude information obtained in real time, can determine whether out that current source the most normally works, after detection determines some current source fault, control to close in time the trigger command of all current sources, thus ensure that indivedual IGCT is the most breakdown.
During work, MOSFET T1 opens the electric current of generation after sampling resistor R10, form the voltage signal of certain amplitude, send into difference amplifier 211, after amplification, voltage signal gives reference voltage comparator 213 after low pass filter 212 filters, owing to the negative terminal of reference voltage comparator 213 inputs as fixing DC quantity, therefore only after the voltage magnitude of anode is more than this fixing DC quantity, the digital signal U4 of reference voltage comparator 213 output just becomes high level, this high level becomes low level after the first phase inverter D8 of State-output unit 22, now triode switch device V10 is the most open-minded, fiber optic emitter TX1 is the most luminous；Having no progeny when MOSFET T1 closes, sampling resistor R10 both end voltage is zero, and the digital signal U4 of now reference voltage comparator 213 output is then low level, then by becoming high level after the phase inverter D8 of State-output unit 22, so now fiber optic emitter TX1 is luminous.When i.e. source of high frequency current generation module 1 exports source of high frequency current, MOSFET T1 high frequency is opened, is turned off, and now fiber optic emitter TX1 then forms lasting the most luminous, luminous recurrent state.
When MOSFET T1 does not works, produce without high frequency electric, the digital signal U4 of now reference voltage comparator 213 output is lasting low level, high level is exported after the first phase inverter D8 of State-output unit 22, so fiber optic emitter TX1 continuous illumination, then i.e. can be obtained the power supply state of source of high frequency current by the continuous illumination state of fiber optic emitter TX1, thus complete the real-time monitoring of source of high frequency current state and power supply state.
The present embodiment also includes the power supply module 3 being connected respectively with described source of high frequency current generation module 1, current source state monitoring module 2, as shown in Figure 8, in the present embodiment, power supply module 3 includes power supply chip D9 and the input energy storage filter circuit being connected respectively, output voltage regulation circuit 31 and output energy storage filter circuit with power supply chip D9, output voltage regulation circuit 31 includes the 6th resistance R41, the 7th resistance R42 being connected respectively with the FB end of power supply chip D9, the 6th resistance R41, the 7th resistance R42 determine the size of the magnitude of voltage of output.The present embodiment power supply chip U9 specifically uses LM2595 type power supply chip, input energy storage filter circuit includes the first storage capacitor C41, the input filter capacitor C42 being connected in parallel, output energy storage filter circuit includes the second storage capacitor C44 and for filtering the output inductor L1 of the radio-frequency component that power supply chip D9 produces, one end of output inductor L1 connects the CB end of power supply chip D9 by resistance C43, and the other end passes through the second storage capacitor C44 ground connection.The present embodiment the first storage capacitor C41, the second storage capacitor C44 use big capacitance electric capacity, and input filter capacitor C42 uses the electric capacity of low-capacitance.The present embodiment uses the input of 24V power supply, and 24V power supply exports 15V power supply after said structure, as the power supply of whole circuit.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any pro forma restriction to the present invention.Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Therefore, every content without departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should fall in the range of technical solution of the present invention is protected.
Claims (10)
1. an IGCT electromagnetism triggering high frequency electric source apparatus with status monitoring function, including the source of high frequency current generation module (1) for generating and export high frequency electric source signal according to control signal, it is characterized in that: also include the current source state monitoring module (2) being connected with the outfan of described source of high frequency current generation module (1), described current source state monitoring module (2) includes interconnective current amplitude detector unit (21) and State-output unit (22), the high frequency electric source signal that source of high frequency current generation module (1) described in described current amplitude detector unit (21) Real-time Collection exports carries out amplitude detection, output amplitude testing result；Described amplitude detection result is transmitted by described State-output unit (22), and according to the state of described amplitude detection result output source of high frequency current.
High frequency electric source apparatus the most according to claim 1, it is characterized in that: described current amplitude detector unit (21) includes the current source voltage Acquisition Circuit being sequentially connected with, difference amplifier (211), low pass filter (212) and reference voltage comparator (213), described current source voltage Acquisition Circuit gathers the voltage of the high frequency electric source signal that described source of high frequency current generation module (1) exports, the described voltage collected sequentially passes through described difference amplifier (211), after low pass filter (212) and reference voltage comparator (213), output source of high frequency current signal amplitude detection result.
High frequency electric source apparatus the most according to claim 2, it is characterized in that: described State-output unit (22) includes fiber optic emitter TX1 and launches drive circuit (221), the positive pole of described fiber optic emitter TX1 accesses power supply by the first resistance R33, and negative pole connects described transmitting drive circuit (221)；Described transmitting drive circuit (221) includes the first phase inverter D8, dividing potential drop electronic circuit (2221) and the switching device being sequentially connected with, the amplitude detection result that described current amplitude detector unit (21) exports, after described first phase inverter D8, dividing potential drop electronic circuit (2221), switching device, outputting drive voltage is to described fiber optic emitter TX1, sends described amplitude detection result and the power supply state of display output source of high frequency current by described fiber optic emitter TX1.
4. according to the high frequency electric source apparatus described in any one in claims 1 to 3, it is characterized in that: described source of high frequency current generation module (1) includes that the optical fiber being sequentially connected with receives unit (11), filter unit (12), coding unit (13) and driver element (14), described optical fiber receives unit (11) and receives optical control signal and be converted to enable signal, enables signal to described coding unit (13) after described filter unit (12) output filtering；Described coding unit (13) enables signal after receiving described filtering, controls to generate drive pulse signal output to described driver element (14)；Described driver element (14) drives output high frequency electric source signal according to described drive pulse signal.
High frequency electric source apparatus the most according to claim 4, it is characterized in that: described optical fiber receives unit (11) and includes fiber optic receiver HP1 and outfan with described fiber optic receiver HP1 is connected respectively pull-up resistor R2 and the second phase inverter D1, the level signal of output when described fiber optic receiver HP1 receives optical control signal, is converted to level after described pull-up resistor R2, the second phase inverter D1 and enables signal output.
High frequency electric source apparatus the most according to claim 5, it is characterized in that: described filter unit (12) includes two inputs and door D2 and charge-discharge circuit (121), one end of described charge-discharge circuit (121) connects described optical fiber and receives the outfan of unit (11), the other end connects one of them input of described two inputs and door D2, and described two inputs are connected described optical fiber and receive the outfan of unit (11) with another input of door D2；Described charge-discharge circuit (121) includes the first electric capacity C3, charging resistor R3 and the discharge loop being made up of the second resistance R4 being connected in series and the first diode V2, described charging resistor R3 is connected in parallel with described discharge loop, one end of described first electric capacity C3 connects described discharge loop, charging resistor R3, other end ground connection respectively.
High frequency electric source apparatus the most according to claim 6, it is characterized in that: described driver element (14) includes that the mosfet driver D4 being sequentially connected with, bleeder circuit (141), MOSFET pipe T1 and current-limiting resistance R8, described current-limiting resistance R8 access power supply by shorting stub；The drive pulse signal that described coding unit (13) exports is output drive signal extremely described MOSFET pipe T1 after described mosfet driver D4, bleeder circuit (141), described MOSFET pipe T1 is open-minded under the driving of described driving signal, exports high frequency electric source signal；Described current-limiting resistance R8 carries out current limliting to the high frequency electric source signal of output.
High frequency electric source apparatus the most according to claim 7; it is characterized in that: described driver element (14) also includes the magnetic saturation protection circuit (142) being made up of the second diode V3 connected and the 3rd resistance R9, described magnetic saturation protection circuit (142) accesses the two ends for couples high frequency current source energy to the magnetic ring transformer of IGCT by shorting stub.
High frequency electric source apparatus the most according to claim 8, it is characterised in that: described coding unit (13) includes the frequency adjustment circuit (131) that agitator D3 and the input with described agitator D3 are connected；Described frequency adjustment circuit (131) includes the 4th resistance R5, the 5th resistance R6 and the second electric capacity C4, Enable Pin R of described agitator D3 connects the outfan of described filter unit (12), the outfan of described 4th resistance R5 connects the input of described 5th resistance R6, the DISCH end of agitator D3 respectively, the outfan of described 5th resistance R6 connects the TRICH end of described agitator D3, the second electric capacity C4, the other end ground connection of described second electric capacity C4 respectively.
10. according to the high frequency electric source apparatus described in any one in claim 5～9, it is characterized in that: also include respectively with described source of high frequency current generation module (1), the power supply module (3) that current source state monitoring module (2) connects, described power supply module (3) includes power supply chip D9 and the input energy storage filter circuit being connected respectively with described power supply chip D9, output voltage regulation circuit (31) and output energy storage filter circuit, described output voltage regulation circuit (31) includes the 6th resistance R41 being connected respectively with the FB end of power supply chip D9, 7th resistance R42.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510281477.6A CN104932600B (en) | 2015-05-28 | 2015-05-28 | There is the IGCT electromagnetism triggering high frequency electric source apparatus of status monitoring function |
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| CN201510281477.6A CN104932600B (en) | 2015-05-28 | 2015-05-28 | There is the IGCT electromagnetism triggering high frequency electric source apparatus of status monitoring function |
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| CN104932600B true CN104932600B (en) | 2016-08-24 |
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| CN110908487A (en) * | 2019-11-24 | 2020-03-24 | 苏州浪潮智能科技有限公司 | Server and main and standby power switching control circuit thereof |
| CN111884638A (en) * | 2020-07-07 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Thyristor interlocking control circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS61156319A (en) * | 1984-12-28 | 1986-07-16 | Toshiba Corp | Overload protecting circuit |
| JP3568722B2 (en) * | 1997-01-13 | 2004-09-22 | 日野自動車株式会社 | Overcurrent cutoff circuit |
| CN101632851B (en) * | 2009-08-06 | 2011-07-27 | 戴维逊磁疗技术（厦门）有限公司 | Intelligent control device of thyristor |
| CN202177842U (en) * | 2011-06-15 | 2012-03-28 | 网拓(上海)通信技术有限公司 | Constant current source |
| CN104102263B (en) * | 2014-05-30 | 2015-11-25 | 北京航天自动控制研究所 | A kind of constant-current source circuit of belt current monitoring |
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