CN201297236Y - A control circuit based on aerogenerator digital tachometric survey - Google Patents
A control circuit based on aerogenerator digital tachometric survey Download PDFInfo
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- CN201297236Y CN201297236Y CNU2008202290653U CN200820229065U CN201297236Y CN 201297236 Y CN201297236 Y CN 201297236Y CN U2008202290653 U CNU2008202290653 U CN U2008202290653U CN 200820229065 U CN200820229065 U CN 200820229065U CN 201297236 Y CN201297236 Y CN 201297236Y
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- driven generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a control circuit based on aerogenerator digital tachometric survey, which comprises an input circuit, a shaping circuit, a counting circuit, a multi-harmonic vibration circuit, a driving circuit, a relay, and a power supply circuit; wherein the input circuit is connected with a three-phrase power supply output phrase of an aerogenerator; the output of the input circuit is connected with the input phrase of the shaping circuit; the output of the shaping circuit is connected with a counting input end of the counting circuit; the output of the counting circuit is connected with the input phrase of the driving circuit; the output of the driving circuit is connected with a control end of the relay; the relay is connected between the aerogenerator and a fictitious load; the output of the multi-harmonic vibration circuit is connected with a reset end of the counting circuit. The control circuit makes full use of the characteristic that the output frequency of the aerogenerator is proportional to the rotating speed of the aerogenerator, surveys the rotating speed of the aerogenerator through frequency and controls whether the aerogenerator is provided fictitious load. The control circuit has the advantages of low power consumption, high precision, high reliability and low cost.
Description
Technical field
The utility model relates to a kind of control circuit, particularly relates to a kind of control circuit based on the wind-driven generator measuring digital rotating speed.
Background technique
Wind-driven generator is a kind of device that utilizes wind-force to generate electricity, when the rotor of wind-force drive generator rotates, and the stator output electric energy of generator.In wind-power generating system, when wind-force is excessive, can cause wind-driven generator driving (being that rotating speed is too fast), therefore be necessary very much the rotating speed of wind-driven generator is measured, feasible fictitious load on the fan band when rotating speed is too high is to reduce the rotating speed of wind-driven generator.Traditional way is the rotating speed that the employing electric current testing detects wind-driven generator at present, but the electric current of wind-driven generator is altered a great deal by the influence of load, the big used mutual inductor cost height of current detecting, and volume is big, installs also inconvenient.Therefore detected electric current can not really reflect the rotating speed of generator, temperature drift and reference point depart from the precision and the stability that all can affect measurement to a great extent, cause error bigger.
The model utility content
The purpose of this utility model is to overcome the deficiency of prior art, a kind of control circuit based on the wind-driven generator measuring digital rotating speed is provided, be the characteristics of utilizing the wind-driven generator output frequency to be directly proportional with the rotating speed of wind-driven generator, go out the rotating speed of blower fan by frequency measurement, and and then whether be with fictitious load to control to blower fan, have low power consumption, highi degree of accuracy, high reliability, characteristics cheaply.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of control circuit based on the wind-driven generator measuring digital rotating speed comprises:
One input circlult, its input is connected with the three phase mains output of wind-driven generator, and this input circlult is handled to provide charge power supply to power circuit three phase mains output the carrying out rectifying and wave-filtering of wind-driven generator;
One shaping circuit, its input is connected to the connecting end that the A of the three phase mains of the power generator of giving a dinner for a visitor from afar in the input circlult exports mutually, and the rotary speed information that this shaping circuit will be collected in the wind-driven generator that the three phase sine power supply of wind-driven generator had is processed into the scaling circuit square signal of identification easily;
One scaling circuit, its counting input end is connected with the output of shaping circuit, and this scaling circuit produces corresponding high level output according to the step-by-step counting of counting input end at the pairing output pin of its output terminal;
One multi resonant oscillating circuit according to setting in advance, periodically produces the output of high level reset signal, and this output signal is connected to the reset end of scaling circuit, to provide the reset signal that resets to scaling circuit;
One drive circuit, its input is connected to the output pin that scaling circuit sets in advance;
One relay is connected between wind-driven generator and the fictitious load, and its control input is connected with the output of drive circuit, accepts the drive signal of drive circuit and conversion selection between the on/off of wind-driven generator and fictitious load;
One power circuit is connected with scaling circuit, multi resonant oscillating circuit, drive circuit respectively, is used for providing power supply signal to scaling circuit, multi resonant oscillating circuit, drive circuit.
A kind of control circuit based on the wind-driven generator measuring digital rotating speed of the present utility model is to utilize wind-driven generator output frequency characteristics, measures the rotating speed of blower fan, and and then realizes controlling.According to the three phase sine power supply frequency of the rotating speed of wind-driven generator and output this feature that is directly proportional, the rotary speed information that has a generator from the three phase sine power supply of generator is transfused to circuit and gathers, this collection signal is processed into the scaling circuit square signal of identification easily behind shaping circuit, this square signal is defeated by the counting input end of scaling circuit, when the counting input end of scaling circuit is sent into the 1st count pulse, high level output is arranged in the 1st output pin position of scaling circuit, and other output pin positions are low level; When the counting input end of scaling circuit is sent into the 2nd count pulse, high level output is arranged in the 2nd output pin position of scaling circuit, other output pin positions are low level; When the counting input end of scaling circuit is sent into the 3rd count pulse, high level output is arranged in the 3rd output pin position of scaling circuit, other output pin positions are low level; When the counting input end of scaling circuit is sent into the 4th count pulse, high level output is arranged in the 4th output pin position of scaling circuit, other output pin positions are low level; The rest may be inferred; Because the multi resonant oscillating circuit is connected the reset end of scaling circuit, the multi resonant oscillating circuit can periodically produce the reset end that the high level reset signal exports scaling circuit to, to provide the reset signal that resets to scaling circuit according to setting in advance; Under some input pulses, when multi resonant oscillating circuit during to the reset end of scaling circuit output high level reset signal, all output pins of scaling circuit all can become low level, promptly return zero clearing, like this, the output pin position of the scaling circuit back high level of just having no chance to export, according to this principle, the output pin position of back is connected to the input of drive circuit as the output of scaling circuit, under the normal situation of rotating speed, because can not there be high level the output pin position of back, drive circuit just can not be driven yet, when rotating speed takes place unusual, under the very fast situation of speed, increase in density by the pulse signal of shaping circuit output, at the multi resonant oscillating circuit before the reset end of scaling circuit output high level reset signal, the feasible output pin position output high level that is connected to the scaling circuit of drive circuit of pulse signal is just arranged, be subjected to the driving of scaling circuit output high level, drive circuit works, and the drive actuating of relay, make the relay adhesive, then fictitious load is connected with wind-driven generator by relay, the rotating speed of wind-driven generator will lower, after the rotating speed of wind-driven generator descends, normal by going back to of the pulse signal of shaping circuit output, the multi resonant oscillating circuit is exported the high level reset signal routinely to the reset end of scaling circuit, makes the output pin position output low level that is connected with the drive circuit input in the scaling circuit, drive circuit is not worked, relay discharges, and then disconnects between fictitious load and the wind-driven generator being connected, thereby has realized whether being with fictitious load to control to blower fan.
A kind of control circuit of the present utility model based on the wind-driven generator measuring digital rotating speed, change the concussion frequency of multi resonant vibrator, can set on a large scale the rotating speed of wind-driven generator, select the connection of different scaling circuit output pin positions, the input that is about to drive circuit is connected on the different output pin position of scaling circuit, can set among a small circle the rotating speed of generator (promptly having realized accurate setting), by large-scale setting and setting among a small circle, can obtain the revolution of wind-driven generator accurately, and realize thus controlling according to the measurement of wind-driven generator numeral rotating speed.
The beneficial effects of the utility model are, owing to adopted an input circlult, one shaping circuit, one scaling circuit, one multi resonant oscillating circuit, one drive circuit, one relay, one power circuit is used as the control circuit based on the wind-driven generator measuring digital rotating speed, and input circlult is connected with the three phase mains output of wind-driven generator, the connecting end that the A of the three phase mains of the power generator of giving a dinner for a visitor from afar of input circlult exports mutually is connected with the input of shaping circuit, the output of shaping circuit is connected to the counting input end of scaling circuit, the output of scaling circuit is connected with the input of drive circuit, the output of drive circuit is connected to the control end of relay, relay is connected between wind-driven generator and the fictitious load, the output of multi resonant oscillating circuit is connected to the reset end of scaling circuit, the output of power circuit is connected to scaling circuit respectively, drive circuit, the multi resonant oscillating circuit, the characteristics that the wind-driven generator output frequency is directly proportional with the rotating speed of wind-driven generator have been made full use of, go out the rotating speed of blower fan by frequency measurement, and and then whether be with fictitious load to control to blower fan, have low power consumption, highi degree of accuracy, high reliability, advantage cheaply.
Below in conjunction with drawings and Examples the utility model is described in further detail; But a kind of control circuit based on the wind-driven generator measuring digital rotating speed of the present utility model is not limited to embodiment.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Referring to shown in Figure 1, a kind of control circuit based on the wind-driven generator measuring digital rotating speed of the present utility model comprises:
One input circlult 11, its input is connected with three phase mains A, B, the C output of wind-driven generator 10, and this input circlult is handled to provide charge power supply to power circuit three phase mains output the carrying out rectifying and wave-filtering of wind-driven generator 10;
One shaping circuit 12, its input is connected to the connecting end that the A of the three phase mains of the power generator of giving a dinner for a visitor from afar in the input circlult 11 exports mutually, and the rotary speed information that this shaping circuit 12 will be collected in the wind-driven generator that the three phase sine power supply of wind-driven generator 10 had is processed into scaling circuit 13 square signals of identification easily;
One scaling circuit 13, its counting input end is connected with the output of shaping circuit 12, and this scaling circuit 13 produces corresponding high level output according to the step-by-step counting of counting input end at the pairing output pin of its output terminal;
One multi resonant oscillating circuit 14 according to setting in advance, periodically produces the output of high level reset signal, and this output signal is connected to the reset end of scaling circuit 13, to provide the reset signal that resets to scaling circuit 13;
One drive circuit 15, its input is connected to the output pin that scaling circuit 13 is set in advance;
One relay 16 is connected between wind-driven generator 10 and the fictitious load 20, and its control input is connected with the output of drive circuit 15, accepts the drive signal of drive circuit 15 and conversion selection between the on/off of wind-driven generator 10 and fictitious load 20;
One power circuit 17 is connected with scaling circuit 13, multi resonant oscillating circuit 14, drive circuit 15 respectively, is used for providing power supply signal to scaling circuit 13, multi resonant oscillating circuit 14, drive circuit 15.
Referring to shown in Figure 2:
Multi resonant oscillating circuit 14 is made up of triode BG1, triode BG2, triode BG3, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, capacitor C 1, capacitor C 2;
A kind of control circuit based on the wind-driven generator measuring digital rotating speed of the present utility model is to utilize wind-driven generator output frequency characteristics, measures the rotating speed of blower fan, and and then realizes controlling.According to the three phase sine power supply frequency of the rotating speed of wind-driven generator 10 and output this feature that is directly proportional, the rotary speed information that has a generator from the three phase sine power supply of generator 10 is transfused to circuit 11 and gathers, this collection signal is processed into scaling circuit 13 square signal of identification easily behind shaping circuit 12, this square signal is defeated by the counting input end of scaling circuit 13, when the counting input end of scaling circuit 13 is sent into the 1st count pulse, high level output is arranged in the 1st output pin position of scaling circuit, and other output pin positions are low level; When the counting input end of scaling circuit is sent into the 2nd count pulse, high level output is arranged in the 2nd output pin position of scaling circuit, other output pin positions are low level; When the counting input end of scaling circuit is sent into the 3rd count pulse, high level output is arranged in the 3rd output pin position of scaling circuit, other output pin positions are low level; When the counting input end of scaling circuit is sent into the 4th count pulse, high level output is arranged in the 4th output pin position of scaling circuit, other output pin positions are low level; The rest may be inferred; In the present embodiment, the input of drive circuit 15 is to be connected in the octal position of scaling circuit 13, when the counting input end of scaling circuit is sent into the 8th count pulse, high level output is arranged in the 8th output pin position of scaling circuit, and other output pin positions are low level.
Because multi resonant oscillating circuit 14 is connected the reset end of scaling circuit, multi resonant oscillating circuit 14 can periodically produce the reset end that the high level reset signal exports scaling circuit 13 to, to provide the reset signal that resets to scaling circuit 13 according to setting in advance; When shaping circuit 12 is sent into the 7th count pulse, there is high level output the 7th output pin position of scaling circuit 13, according to setting in advance, at this moment multi resonant oscillating circuit 14 is to the reset end output high level reset signal of scaling circuit 13, make each output pin of scaling circuit 13 become low level, like this, the 8th output pin of scaling circuit 13 high level of just having no chance to export just can not worked by the drive circuit 15 that the 8th output pin of scaling circuit 13 is connected.
Under the normal situation of wind-driven generator 10 rotating speeds, because the 8th output pin of scaling circuit 13 can not have high level, therefore, drive circuit 15 just can not be driven yet, the relay 16 that drives work by drive circuit 15 does not have the action generation yet, relay 16 (being the relay J K among Fig. 2) is releasing state, is off state between wind-driven generator 10 and the fictitious load 20.
When wind-driven generator 10 rotating speeds take place unusual, the rotating speed that is wind-driven generator 10 is under the very fast situation, increase in density by the pulse signal of shaping circuit 12 output, at multi resonant oscillating circuit 14 before the reset end of scaling circuit 13 output high level reset signal, feasible the 8th output pin position output high level that is connected to the scaling circuit 13 of drive circuit 15 of pulse signal is just arranged, be subjected to the driving of scaling circuit 13 output high level, drive circuit 15 work, and drive relay 16 actions, make relay 16 adhesives, then fictitious load 20 is connected with wind-driven generator 10 by relay, because wind-driven generator 10 has been with fictitious load 20, the rotating speed of wind-driven generator 10 will lower, after the rotating speed of wind-driven generator 10 descends, normal by going back to of the pulse signal of shaping circuit 12 output, multi resonant oscillating circuit 14 is exported the high level reset signal routinely to the reset end of scaling circuit, make the 8th output pin position output low level that is connected with drive circuit 15 inputs in the scaling circuit 13, drive circuit 15 is not worked, relay 16 discharges, then disconnect between fictitious load 20 and the wind-driven generator 10 and being connected, thereby realized whether being with fictitious load to control blower fan.
A kind of control circuit of the present utility model based on the wind-driven generator measuring digital rotating speed, by changing the concussion frequency of multi resonant vibrator 14, can set on a large scale the rotating speed of wind-driven generator 10, select the connection of different scaling circuit 13 output pin positions, the input that is about to drive circuit 15 is connected on the different output pin position of scaling circuit 13, can set among a small circle the rotating speed of generator 10 (promptly having realized accurate setting), by large-scale setting and setting among a small circle, can obtain the revolution of wind-driven generator accurately, and realize thus controlling according to the measurement of wind-driven generator numeral rotating speed.
The foregoing description only is used for further specifying a kind of control circuit based on the wind-driven generator measuring digital rotating speed of the present utility model; but the utility model is not limited to embodiment; every foundation technical spirit of the present utility model all falls in the protection domain of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. control circuit based on the wind-driven generator measuring digital rotating speed is characterized in that: comprising:
One input circlult, its input is connected with the three phase mains output of wind-driven generator, and this input circlult is handled to provide charge power supply to power circuit three phase mains output the carrying out rectifying and wave-filtering of wind-driven generator;
One shaping circuit, its input is connected to the connecting end that the A of the three phase mains of the power generator of giving a dinner for a visitor from afar in the input circlult exports mutually, and the rotary speed information that this shaping circuit will be collected in the wind-driven generator that the three phase sine power supply of wind-driven generator had is processed into the scaling circuit square signal of identification easily;
One scaling circuit, its counting input end is connected with the output of shaping circuit, and this scaling circuit produces corresponding high level output according to the step-by-step counting of counting input end at the pairing output pin of its output terminal;
One multi resonant oscillating circuit according to setting in advance, periodically produces the output of high level reset signal, and this output signal is connected to the reset end of scaling circuit, to provide the reset signal that resets to scaling circuit;
One drive circuit, its input is connected to the output pin that scaling circuit sets in advance;
One relay is connected between wind-driven generator and the fictitious load, and its control input is connected with the output of drive circuit, accepts the drive signal of drive circuit and conversion selection between the on/off of wind-driven generator and fictitious load;
One power circuit is connected with scaling circuit, multi resonant oscillating circuit, drive circuit respectively, is used for providing power supply signal to scaling circuit, multi resonant oscillating circuit, drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202290653U CN201297236Y (en) | 2008-11-20 | 2008-11-20 | A control circuit based on aerogenerator digital tachometric survey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202290653U CN201297236Y (en) | 2008-11-20 | 2008-11-20 | A control circuit based on aerogenerator digital tachometric survey |
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| Publication Number | Publication Date |
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| CN201297236Y true CN201297236Y (en) | 2009-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202290653U Expired - Lifetime CN201297236Y (en) | 2008-11-20 | 2008-11-20 | A control circuit based on aerogenerator digital tachometric survey |
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| CN (1) | CN201297236Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168648A (en) * | 2011-05-03 | 2011-08-31 | 苏州能健电气有限公司 | Master control unit of wind power equipment |
| CN101737256B (en) * | 2008-11-20 | 2011-10-26 | 漳州国绿太阳能科技有限公司 | Control circuit for measuring digital rotating speed of wind-driven generator |
| CN102929185A (en) * | 2012-11-27 | 2013-02-13 | 戚墅堰机车车辆厂工业公司 | Dust removing fan controlling system for internal combustion locomotives |
-
2008
- 2008-11-20 CN CNU2008202290653U patent/CN201297236Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737256B (en) * | 2008-11-20 | 2011-10-26 | 漳州国绿太阳能科技有限公司 | Control circuit for measuring digital rotating speed of wind-driven generator |
| CN102168648A (en) * | 2011-05-03 | 2011-08-31 | 苏州能健电气有限公司 | Master control unit of wind power equipment |
| CN102929185A (en) * | 2012-11-27 | 2013-02-13 | 戚墅堰机车车辆厂工业公司 | Dust removing fan controlling system for internal combustion locomotives |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090826 Effective date of abandoning: 20081120 |