CN204349852U - A kind of control device of wind-driven generator limit protection assembly - Google Patents
A kind of control device of wind-driven generator limit protection assembly Download PDFInfo
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- CN204349852U CN204349852U CN201420653123.0U CN201420653123U CN204349852U CN 204349852 U CN204349852 U CN 204349852U CN 201420653123 U CN201420653123 U CN 201420653123U CN 204349852 U CN204349852 U CN 204349852U
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Abstract
The utility model discloses a kind of control device of wind-driven generator limit protection assembly, comprise wind-driven generator, the first rectifier bridge be connected with described wind-driven generator successively and storage battery, and the second rectifier bridge be connected with described wind-driven generator successively and independent redundancy off-load processing unit; The input of described first rectifier bridge is connected with the input of the second rectifier bridge.The control device of wind-driven generator limit protection assembly described in the utility model; can to overcome in prior art that power supply reliability is low, equipment is fragile and the defect such as poor stability, to realize the advantage that power supply reliability is high, equipment is not fragile and safety in utilization is good.
Description
Technical field
The utility model relates to technical field of wind power, particularly, relates to a kind of control device of wind-driven generator limit protection assembly.
Background technology
The application of current new forms of energy (wind power generation, solar power generation) enters a practical stage, and corresponding electronic-controlled installation (e.g., wind/light complementation controller, controller of fan etc.) plays very important effect.Especially to the control of wind-driven generator.Due to the uncertainty of wind, easily cause wind-driven generator to burn, or directly damage controller, cause control out of control, electricity generation system will be collapsed.
General controller to the control of blower fan be only rely on the normal operating state of controller under could protect to wind-driven generator, once controller has damaged, then, blower fan also can secondary damage.Especially: improper in use habit of user is caused.Such as: normal controller all needs requirement first to connect storage battery power supply, machine of then just giving a dinner for a visitor from afar inputs, and like this, the energy of blower fan input can be directly released in battery and go.If first give a dinner for a visitor from afar power generator, then connect storage battery, then as easy as rolling off a logly to cause, because input voltage is too high, direct overvoltage destruct limit device, controller reproduces into the short circuit of blower fan generator loading after damaging most probably.Because wind-driven generator adds overlaid suddenly, be equivalent to blower fan when running up, the consequence of directly brake, cause fan blade owing to being subject to suddenly counteractive resistance, can be fractureed blade, or the violent shake caused, and loses the support problem of wind-driven generator.Occurring to process this kind of exception that is special or limiting condition, needing to propose new protected mode.
Realizing in process of the present utility model, inventor finds at least to exist in prior art the defect such as power supply reliability is low, equipment is fragile and safety in utilization is poor.
Utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of control device of wind-driven generator limit protection assembly, to realize the advantage that power supply reliability is high, equipment is not fragile and safety in utilization is good.
For achieving the above object, the technical solution adopted in the utility model is: a kind of control device of wind-driven generator limit protection assembly, comprise wind-driven generator, the first rectifier bridge be connected with described wind-driven generator successively and storage battery, and the second rectifier bridge be connected with described wind-driven generator successively and independent redundancy off-load processing unit; The input of described first rectifier bridge is connected with the input of the second rectifier bridge.
Further, between described first rectifier bridge and storage battery, multiple filter capacitor is parallel with.
Further, described independent redundancy off-load processing unit, comprise first to fourth inverter U1A, U1B, U1C and U1D, potential-divider network module, 3rd diode D3, the 4th triode D4, the 5th diode D5,3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 and the 11 resistance R11, first electric capacity C1, the second electric capacity C2, first switching tube Q1, the 3rd switching tube Q3, metal-oxide-semiconductor drive circuit, off-load metal-oxide-semiconductor QX and external electric power generation unloading resistance RX; Wherein:
The anode of described 3rd diode D3 is connected with the output of the second rectifier bridge, the anode of the 3rd diode D3 is connected with the source electrode of off-load metal-oxide-semiconductor QX after external electric power generation unloading resistance RX, and the anode of the 3rd diode D3 is also connected with the input of the first inverter U1A after potential-divider network module; The negative electrode of the 3rd diode D3 is connected with metal-oxide-semiconductor drive circuit after the 9th resistance R9, the negative electrode of the 3rd diode D3 is connected with the negative electrode of the 4th diode D4 after the 3rd resistance R3, the negative electrode also ground connection after the first electric capacity C1 of the 3rd diode D3, the plus earth of the 4th diode D4, the earth terminal of the first electric capacity C1 is negative pole, the common port ground connection after the 6th resistance R6 and the second electric capacity C2 successively of the 3rd resistance R3 and the 4th diode D4;
The output of described first inverter U1A is connected with the input of the second inverter U1B, the output ground connection after the 4th resistance R4 and the 5th resistance R5 successively of the second inverter U1B, 4th resistance R4 is connected with the base stage of the first switching tube Q1 with the common port of the 5th resistance R5, the grounded emitter of the first switching tube Q1, the collector electrode of the first switching tube Q1 is connected with the input of the 3rd inverter U1C, and the collector electrode of the first switching tube Q1 is also connected with the common port of the 6th resistance R6 and the second electric capacity C2;
The output of described 3rd inverter U1C is connected with the input of the 4th inverter U1D, the output of the 4th inverter U1D is connected with the base stage of the 3rd switching tube Q3 after the 8th resistance R8, the collector electrode of the 3rd switching tube Q3 is connected with metal-oxide-semiconductor drive circuit, the grounded collector of the 3rd switching tube Q3, tenth resistance R10 is connected between the base stage of the 3rd switching tube Q3 and the emitter of the 3rd switching tube Q3, and the tenth resistance R10 is also parallel with an electric capacity; 11 resistance R11 is connected between the common port of the 9th resistance R9 and metal-oxide-semiconductor drive circuit and the collector electrode of the 3rd switching tube Q3,11 resistance R11 is connected with the negative electrode of the 5th diode D5 away from one end of the 9th resistance R9, the plus earth of the 5th diode D5;
Described metal-oxide-semiconductor drive circuit is connected with the grid of off-load metal-oxide-semiconductor QX, the grounded drain of off-load metal-oxide-semiconductor QX.
Further, described potential-divider network module, comprises the second diode and voltage stabilizing didoe D2, the first divider resistance R1 and the second divider resistance R2; The negative electrode of described voltage stabilizing didoe D2 is connected with the anode of the 3rd triode D3, the anode ground connection after the first divider resistance R1 and the second divider resistance R2 successively of voltage stabilizing didoe D2, the common port of the first divider resistance R1 and the second divider resistance R2 is connected to the input of the first inverter U1A;
And/or,
Described metal-oxide-semiconductor drive circuit, comprises second switch pipe Q2 and the 4th switching tube Q4; The base stage of described second switch pipe Q2 and the base stage of the 4th switching tube Q4 are connected away from one end of the 9th resistance R9 with the collector electrode of the 3rd switching tube Q3, the negative electrode of the 5th diode D5 and the 11 resistance R11 respectively, the collector electrode of second switch pipe Q2 is connected away from one end of the 5th diode D5 away from one end of the first electric capacity C1 and the 11 resistance R11 with the 9th resistance R9 respectively, the emitter of second switch pipe Q2 is connected with the emitter of the 4th switching tube Q4 and the grid of off-load metal-oxide-semiconductor QX respectively, the grounded collector of the 4th switching tube Q4;
The circuit between 40V and GND is input to after wind-driven generator input rectifying, after the input voltage after rectification is more than 40V, by voltage stabilizing didoe D2, first divider resistance R1, second divider resistance R2 forms potential-divider network module, allow the input i.e. 1 pin input high level of the first inverter U1A, thus the second inverter exports high level by output i.e. 4 pin of U1B, first switching tube Q1 conducting, second electric capacity C2 is discharged, then the input of the 3rd inverter U1C i.e. 5 pin input low levels, the base stage of the 3rd switching tube Q3 and input are closed, the metal-oxide-semiconductor drive circuit outputting drive voltage be made up of second switch pipe Q2 and the 4th switching tube Q4, allow off-load metal-oxide-semiconductor QX conducting, connect external electric power generation unloading resistance RX and allow wind-driven generator off-load,
After off-load starts, wind-driven generator voltage drop, drop to default falling-threshold value, the input i.e. 1 pin incoming level of the first inverter U1A becomes low level, first switching tube Q1 closes, 6th resistance R6 starts to charge to the second electric capacity C2, after charging interval is about 2ms, the input i.e. 5 pin input high levels of the 3rd inverter U1C, the 3rd switching tube Q3 conducting, the off-load metal-oxide-semiconductor QX of driving becomes cut-off, external electric power generation unloading resistance RX disconnects, wind-driven generator input voltage starts to rise, and then off-load, and circulate this process;
The operating frequency of above-mentioned unloading process is determined by the 6th resistance R6 and the second electric capacity C2, as long as blower fan input voltage then can produce PWM off-load pulse off-load more than 40V.
Further, described first switching tube Q1, second switch pipe Q2, the 3rd switching tube Q3 and the 4th switching tube Q4, be triode.
The control device of the wind-driven generator limit protection assembly of each embodiment of the utility model, owing to comprising wind-driven generator, the first rectifier bridge be connected with wind-driven generator successively and storage battery, and the second rectifier bridge be connected with wind-driven generator successively and independent redundancy off-load processing unit; The input of the first rectifier bridge is connected with the input of the second rectifier bridge; Can be applied in wind-driven generator Safety Redundancy control procedure; Thus can overcome in prior art that power supply reliability is low, equipment is fragile and the defect of poor stability, to realize the advantage that power supply reliability is high, equipment is not fragile and safety in utilization is good.
Other features and advantages of the utility model will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the utility model.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is the operation principle schematic diagram of the control device of the utility model wind-driven generator limit protection assembly;
Fig. 2 is the operation principle schematic diagram of blower fan limit protection assembly in the control device of the utility model wind-driven generator limit protection assembly.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
According to the utility model embodiment, as depicted in figs. 1 and 2, a kind of control device of wind-driven generator limit protection assembly is provided.
The control device of the wind-driven generator limit protection assembly of the present embodiment, comprises wind-driven generator, the first rectifier bridge be connected with wind-driven generator successively and storage battery, and the second rectifier bridge be connected with wind-driven generator successively and independent redundancy off-load processing unit; The input of the first rectifier bridge is connected with the input of the second rectifier bridge.Between the first rectifier bridge and storage battery, be parallel with multiple filter capacitor.
Particularly, above-mentioned independent redundancy off-load processing unit, comprise first to fourth inverter U1A, U1B, U1C and U1D, potential-divider network module, 3rd diode D3, the 4th triode D4, the 5th diode D5,3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 and the 11 resistance R11, first electric capacity C1, the second electric capacity C2, first switching tube Q1, the 3rd switching tube Q3, metal-oxide-semiconductor drive circuit, off-load metal-oxide-semiconductor QX and external electric power generation unloading resistance RX; Wherein:
The anode of the 3rd diode D3 is connected with the output of the second rectifier bridge, the anode of the 3rd diode D3 is connected with the source electrode of off-load metal-oxide-semiconductor QX after external electric power generation unloading resistance RX, and the anode of the 3rd diode D3 is also connected with the input of the first inverter U1A after potential-divider network module; The negative electrode of the 3rd diode D3 is connected with metal-oxide-semiconductor drive circuit after the 9th resistance R9, the negative electrode of the 3rd diode D3 is connected with the negative electrode of the 4th diode D4 after the 3rd resistance R3, the negative electrode also ground connection after the first electric capacity C1 of the 3rd diode D3, the plus earth of the 4th diode D4, the earth terminal of the first electric capacity C1 is negative pole, the common port ground connection after the 6th resistance R6 and the second electric capacity C2 successively of the 3rd resistance R3 and the 4th diode D4;
The output of the first inverter U1A is connected with the input of the second inverter U1B, the output ground connection after the 4th resistance R4 and the 5th resistance R5 successively of the second inverter U1B, 4th resistance R4 is connected with the base stage of the first switching tube Q1 with the common port of the 5th resistance R5, the grounded emitter of the first switching tube Q1, the collector electrode of the first switching tube Q1 is connected with the input of the 3rd inverter U1C, and the collector electrode of the first switching tube Q1 is also connected with the common port of the 6th resistance R6 and the second electric capacity C2;
The output of the 3rd inverter U1C is connected with the input of the 4th inverter U1D, the output of the 4th inverter U1D is connected with the base stage of the 3rd switching tube Q3 after the 8th resistance R8, the collector electrode of the 3rd switching tube Q3 is connected with metal-oxide-semiconductor drive circuit, the grounded collector of the 3rd switching tube Q3, tenth resistance R10 is connected between the base stage of the 3rd switching tube Q3 and the emitter of the 3rd switching tube Q3, and the tenth resistance R10 is also parallel with an electric capacity; 11 resistance R11 is connected between the common port of the 9th resistance R9 and metal-oxide-semiconductor drive circuit and the collector electrode of the 3rd switching tube Q3,11 resistance R11 is connected with the negative electrode of the 5th diode D5 away from one end of the 9th resistance R9, the plus earth of the 5th diode D5; Metal-oxide-semiconductor drive circuit is connected with the grid of off-load metal-oxide-semiconductor QX, the grounded drain of off-load metal-oxide-semiconductor QX.
This potential-divider network module, comprises the second diode and voltage stabilizing didoe D2, the first divider resistance R1 and the second divider resistance R2; The negative electrode of voltage stabilizing didoe D2 is connected with the anode of the 3rd triode D3, the anode ground connection after the first divider resistance R1 and the second divider resistance R2 successively of voltage stabilizing didoe D2, the common port of the first divider resistance R1 and the second divider resistance R2 is connected to the input of the first inverter U1A;
And/or,
This metal-oxide-semiconductor drive circuit, comprises second switch pipe Q2 and the 4th switching tube Q4; The base stage of second switch pipe Q2 and the base stage of the 4th switching tube Q4 are connected away from one end of the 9th resistance R9 with the collector electrode of the 3rd switching tube Q3, the negative electrode of the 5th diode D5 and the 11 resistance R11 respectively, the collector electrode of second switch pipe Q2 is connected away from one end of the 5th diode D5 away from one end of the first electric capacity C1 and the 11 resistance R11 with the 9th resistance R9 respectively, the emitter of second switch pipe Q2 is connected with the emitter of the 4th switching tube Q4 and the grid of off-load metal-oxide-semiconductor QX respectively, the grounded collector of the 4th switching tube Q4;
The circuit between 40V and GND is input to after wind-driven generator input rectifying, after the input voltage after rectification is more than 40V, by voltage stabilizing didoe D2, first divider resistance R1, second divider resistance R2 forms potential-divider network module, allow the input i.e. 1 pin input high level of the first inverter U1A, thus the second inverter exports high level by output i.e. 4 pin of U1B, first switching tube Q1 conducting, second electric capacity C2 is discharged, then the input of the 3rd inverter U1C i.e. 5 pin input low levels, the base stage of the 3rd switching tube Q3 and input are closed, the metal-oxide-semiconductor drive circuit outputting drive voltage be made up of second switch pipe Q2 and the 4th switching tube Q4, allow off-load metal-oxide-semiconductor QX conducting, connect external electric power generation unloading resistance RX and allow wind-driven generator off-load,
After off-load starts, wind-driven generator voltage drop, drop to default falling-threshold value, the input i.e. 1 pin incoming level of the first inverter U1A becomes low level, first switching tube Q1 closes, 6th resistance R6 starts to charge to the second electric capacity C2, after charging interval is about 2ms, the input i.e. 5 pin input high levels of the 3rd inverter U1C, the 3rd switching tube Q3 conducting, the off-load metal-oxide-semiconductor QX of driving becomes cut-off, external electric power generation unloading resistance RX disconnects, wind-driven generator input voltage starts to rise, and then off-load, and circulate this process;
The operating frequency of above-mentioned unloading process is determined by the 6th resistance R6 and the second electric capacity C2, as long as blower fan input voltage then can produce PWM off-load pulse off-load more than 40V.First switching tube Q1, second switch pipe Q2, the 3rd switching tube Q3 and the 4th switching tube Q4, be triode.
The control device of the wind-driven generator limit protection assembly of above-described embodiment; for the above shortcoming existed, adopt technological means, produce the real method being applicable to wind-driven generator Safety Redundancy and controlling innovatively; being successfully applied to me takes charge of in wind/light complementation controller, obtains user certainly.Structure chart is as Fig. 1.
The signal of telecommunication of the wind-driven generator limit protection related in the control device of the wind-driven generator limit protection assembly of above-described embodiment controls, and the course of work is described below:
Wind-driven generator limit protection assembly mainly contains: rectifier bridge, independent redundancy off-load processing unit, and electric power generation unloading resistance forms.Wherein, the schematic diagram of independent redundancy off-load processing unit is as Fig. 2.
Independent of the control of wind/light complementation controller on independent redundancy off-load processing unit electrical equipment, be built into controller housing inside, for the protection of controller and blower fan, belong to redundancy protecting assembly.Wherein, RX is external electric power generation unloading resistance, and QX is off-load metal-oxide-semiconductor.
The circuit between 40V and GND is input to, after the input voltage after rectification is more than 40V, by voltage stabilizing didoe D2 after wind-driven generator input rectifying, R1, R2 forms potential-divider network, allows U1A1 pin input high level, thus exports high level Q1 conducting by U1B4 pin, C2 is discharged, then U1C5 pin input low level, the input of Q3 triode is closed, the metal-oxide-semiconductor drive circuit outputting drive voltage be made up of Q2, Q4, allow metal-oxide-semiconductor conducting, connect electric power generation unloading resistance by wind-driven generator off-load.After off-load starts, wind-driven generator voltage drop, drops to and about arrives 29V, the 1 pin input of U1A becomes low level, Q1 closes, and R6 starts C2 charging, after the charging interval is about 2ms, the 5 pin input high levels of U1C, Q3 conducting, the metal-oxide-semiconductor of driving becomes cut-off, and electric power generation unloading resistance disconnects, wind-driven generator input voltage starts to rise, and then off-load.Circulate this process.This course work frequency is determined by R6, C2, is about 2kHz, as long as blower fan input voltage then can produce PWM off-load pulse off-load more than 40V.This partial circuit is not subject to processing device and controls, independently.If we do not connect storage battery, power generator of first giving a dinner for a visitor from afar, then the moment accessed will operate in off-load immediately, release portion energy, only provides lighter load when blower fan access controller on the one hand, so incision moment, large shake can not be caused to blower fan, avoid blower fan to tear damage; The energy of another one-sided impact is released by electric power generation unloading resistance, voltge surge can not be caused to controller, controller can not be damaged due to high input voltage, even if also have in controller Long-Time Service process, after battery collapse, cause blower fan close to no-load running, blower fan also can be made to add load, avoid the unloaded High Rotation Speed that causes thus damage blower fan always.
The control device of the wind-driven generator limit protection assembly of above-described embodiment, adopt independent of wind/light complementation controller redundancy unloading unit for blower fan off-load and no-load protection, redundancy unloading unit protection realize method and application extend.The control device of this wind-driven generator limit protection assembly, at least can reach following beneficial effect:
(1) ensure that blower fan can not run by long-term unloaded high rotating speed, evaded the related risk after controller of fan damage.
(2) avoid the controller damage that wind/light complementation controller order of connection mistake causes, the unordered mode of connection can be realized, be more suitable for client and use.
The main devices model that the control device of the wind-driven generator limit protection assembly of above-described embodiment uses comprises: 74HC14 (schmitt inverter); 120N15 (metal-oxide-semiconductor); 2N551 (N-type triode); 2N5401 (P type triode), RX (off-load power resistor).
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. the control device of a wind-driven generator limit protection assembly, it is characterized in that, comprise wind-driven generator, the first rectifier bridge be connected with described wind-driven generator successively and storage battery, and the second rectifier bridge be connected with described wind-driven generator successively and independent redundancy off-load processing unit; The input of described first rectifier bridge is connected with the input of the second rectifier bridge;
Described independent redundancy off-load processing unit, comprise first to fourth inverter U1A, U1B, U1C and U1D, potential-divider network module, 3rd diode D3, the 4th triode D4, the 5th diode D5,3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 and the 11 resistance R11, first electric capacity C1, the second electric capacity C2, first switching tube Q1, the 3rd switching tube Q3, metal-oxide-semiconductor drive circuit, off-load metal-oxide-semiconductor QX and external electric power generation unloading resistance RX; Wherein:
The anode of described 3rd diode D3 is connected with the output of the second rectifier bridge, the anode of the 3rd diode D3 is connected with the source electrode of off-load metal-oxide-semiconductor QX after external electric power generation unloading resistance RX, and the anode of the 3rd diode D3 is also connected with the input of the first inverter U1A after potential-divider network module; The negative electrode of the 3rd diode D3 is connected with metal-oxide-semiconductor drive circuit after the 9th resistance R9, the negative electrode of the 3rd diode D3 is connected with the negative electrode of the 4th diode D4 after the 3rd resistance R3, the negative electrode also ground connection after the first electric capacity C1 of the 3rd diode D3, the plus earth of the 4th diode D4, the earth terminal of the first electric capacity C1 is negative pole, the common port ground connection after the 6th resistance R6 and the second electric capacity C2 successively of the 3rd resistance R3 and the 4th diode D4;
The output of described first inverter U1A is connected with the input of the second inverter U1B, the output ground connection after the 4th resistance R4 and the 5th resistance R5 successively of the second inverter U1B, 4th resistance R4 is connected with the base stage of the first switching tube Q1 with the common port of the 5th resistance R5, the grounded emitter of the first switching tube Q1, the collector electrode of the first switching tube Q1 is connected with the input of the 3rd inverter U1C, and the collector electrode of the first switching tube Q1 is also connected with the common port of the 6th resistance R6 and the second electric capacity C2;
The output of described 3rd inverter U1C is connected with the input of the 4th inverter U1D, the output of the 4th inverter U1D is connected with the base stage of the 3rd switching tube Q3 after the 8th resistance R8, the collector electrode of the 3rd switching tube Q3 is connected with metal-oxide-semiconductor drive circuit, the grounded collector of the 3rd switching tube Q3, tenth resistance R10 is connected between the base stage of the 3rd switching tube Q3 and the emitter of the 3rd switching tube Q3, and the tenth resistance R10 is also parallel with an electric capacity; 11 resistance R11 is connected between the common port of the 9th resistance R9 and metal-oxide-semiconductor drive circuit and the collector electrode of the 3rd switching tube Q3,11 resistance R11 is connected with the negative electrode of the 5th diode D5 away from one end of the 9th resistance R9, the plus earth of the 5th diode D5;
Described metal-oxide-semiconductor drive circuit is connected with the grid of off-load metal-oxide-semiconductor QX, the grounded drain of off-load metal-oxide-semiconductor QX.
2. the control device of wind-driven generator limit protection assembly according to claim 1, is characterized in that, between described first rectifier bridge and storage battery, is parallel with multiple filter capacitor.
3. the control device of wind-driven generator limit protection assembly according to claim 1, is characterized in that, described potential-divider network module, comprises the second diode and voltage stabilizing didoe D2, the first divider resistance R1 and the second divider resistance R2; The negative electrode of described voltage stabilizing didoe D2 is connected with the anode of the 3rd triode D3, the anode ground connection after the first divider resistance R1 and the second divider resistance R2 successively of voltage stabilizing didoe D2, the common port of the first divider resistance R1 and the second divider resistance R2 is connected to the input of the first inverter U1A;
And/or,
Described metal-oxide-semiconductor drive circuit, comprises second switch pipe Q2 and the 4th switching tube Q4; The base stage of described second switch pipe Q2 and the base stage of the 4th switching tube Q4 are connected away from one end of the 9th resistance R9 with the collector electrode of the 3rd switching tube Q3, the negative electrode of the 5th diode D5 and the 11 resistance R11 respectively, the collector electrode of second switch pipe Q2 is connected away from one end of the 5th diode D5 away from one end of the first electric capacity C1 and the 11 resistance R11 with the 9th resistance R9 respectively, the emitter of second switch pipe Q2 is connected with the emitter of the 4th switching tube Q4 and the grid of off-load metal-oxide-semiconductor QX respectively, the grounded collector of the 4th switching tube Q4;
The circuit between 40V and GND is input to after wind-driven generator input rectifying, after the input voltage after rectification is more than 40V, by voltage stabilizing didoe D2, first divider resistance R1, second divider resistance R2 forms potential-divider network module, allow the input i.e. 1 pin input high level of the first inverter U1A, thus the second inverter exports high level by output i.e. 4 pin of U1B, first switching tube Q1 conducting, second electric capacity C2 is discharged, then the input of the 3rd inverter U1C i.e. 5 pin input low levels, the base stage of the 3rd switching tube Q3 and input are closed, the metal-oxide-semiconductor drive circuit outputting drive voltage be made up of second switch pipe Q2 and the 4th switching tube Q4, allow off-load metal-oxide-semiconductor QX conducting, connect external electric power generation unloading resistance RX and allow wind-driven generator off-load,
After off-load starts, wind-driven generator voltage drop, drop to default falling-threshold value, the input i.e. 1 pin incoming level of the first inverter U1A becomes low level, first switching tube Q1 closes, 6th resistance R6 starts to charge to the second electric capacity C2, after charging interval is about 2ms, the input i.e. 5 pin input high levels of the 3rd inverter U1C, the 3rd switching tube Q3 conducting, the off-load metal-oxide-semiconductor QX of driving becomes cut-off, external electric power generation unloading resistance RX disconnects, wind-driven generator input voltage starts to rise, and then off-load, and circulate this process;
The operating frequency of above-mentioned unloading process is determined by the 6th resistance R6 and the second electric capacity C2, as long as blower fan input voltage then can produce PWM off-load pulse off-load more than 40V.
4. the control device of wind-driven generator limit protection assembly according to claim 3, is characterized in that, described first switching tube Q1, second switch pipe Q2, the 3rd switching tube Q3 and the 4th switching tube Q4, be triode.
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| CN201420653123.0U CN204349852U (en) | 2014-11-05 | 2014-11-05 | A kind of control device of wind-driven generator limit protection assembly |
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| CN201420653123.0U CN204349852U (en) | 2014-11-05 | 2014-11-05 | A kind of control device of wind-driven generator limit protection assembly |
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| CN204349852U true CN204349852U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420653123.0U Expired - Lifetime CN204349852U (en) | 2014-11-05 | 2014-11-05 | A kind of control device of wind-driven generator limit protection assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204349852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811819A (en) * | 2016-04-21 | 2016-07-27 | 江苏科技大学 | MOS (Metal Oxide Semiconductor) tube drive circuit used for motor control |
| CN104320029B (en) * | 2014-11-05 | 2017-02-22 | 无锡曼克斯电子科技有限公司 | Control device of limitation protection component of wind driven generator |
-
2014
- 2014-11-05 CN CN201420653123.0U patent/CN204349852U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320029B (en) * | 2014-11-05 | 2017-02-22 | 无锡曼克斯电子科技有限公司 | Control device of limitation protection component of wind driven generator |
| CN105811819A (en) * | 2016-04-21 | 2016-07-27 | 江苏科技大学 | MOS (Metal Oxide Semiconductor) tube drive circuit used for motor control |
| CN105811819B (en) * | 2016-04-21 | 2018-08-17 | 佛山市耀升制冷科技有限公司 | A kind of motor control metal-oxide-semiconductor driving circuit |
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