CN204559398U - Wind power generation adjustable fly-back power circuit - Google Patents

Wind power generation adjustable fly-back power circuit Download PDF

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Publication number
CN204559398U
CN204559398U CN201520125997.3U CN201520125997U CN204559398U CN 204559398 U CN204559398 U CN 204559398U CN 201520125997 U CN201520125997 U CN 201520125997U CN 204559398 U CN204559398 U CN 204559398U
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CN
China
Prior art keywords
transformer
controller
semiconductor
oxide
circuit
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520125997.3U
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Chinese (zh)
Inventor
卜树坡
叶萍
孟桂芳
程雪敏
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Suzhou Institute of Industrial Technology
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Suzhou Institute of Industrial Technology
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Priority to CN201520125997.3U priority Critical patent/CN204559398U/en
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Publication of CN204559398U publication Critical patent/CN204559398U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power conversion electric or electronic aspects

Abstract

The utility model provides a kind of wind power generation adjustable fly-back power circuit, comprise the filter circuit be connected with wind turbine generator output, the rectification circuit be connected with filter circuit, it is characterized in that: it also comprises controller U, transformer T and metal-oxide-semiconductor Q, the drain electrode of metal-oxide-semiconductor is connected to one end of transformer, the other end of transformer is connected to the output of rectification circuit, ground connection after the source series current sampling resistor R3 of metal-oxide-semiconductor, the grid of metal-oxide-semiconductor is connected to the pwm signal output Out of controller, the secondary coil of transformer exports as power supply output V0 and forms node A, the secondary coil of transformer exports the feedback input end COMP being connected to controller through voltage feedback network.Wind power generation adjustable fly-back power circuit of the present utility model, flyback sourse technology is utilized to become adjustable burning voltage to export the electric energy conversion that wind power generation produces, when input voltage fluctuates within a large range, galvanic current still can be had to press and export, the direct voltage of output is adjustable at 15V ~ 30V.

Description

Wind power generation adjustable fly-back power circuit
Technical field
The utility model relates to a kind of wind power generation adjustable fly-back power circuit.
Background technology
Wind power generation utilizes wind-force to drive air vane to rotate, then the speed rotated promoted through booster engine, impels electrical power generators.What wind-driven generator exported is the alternating current that 13 ~ 25V changes; must through charger rectification; again to accumulator jar charging, making the electric energy that in room, generator produces become chemical energy, then using with there being the inverter of protective circuit that the chemical energy in storage battery is converted to alternating current 220V civil power.Because wind power generation fan delivery is unstable, the size and Orientation moment change of wind-force, uses the shortcoming still having and export instability after adopting said method to convert civil power to.
Summary of the invention
In order to solve the deficiency in background technology, the purpose of this utility model is the defect overcoming background technology, provides a kind of wind power generation adjustable fly-back power circuit, VD is adjustable, stablizes.
For achieving the above object, the technical solution adopted in the utility model is: a kind of wind power generation adjustable fly-back power circuit, comprise the filter circuit be connected with wind turbine generator output, the rectification circuit be connected with filter circuit, it is characterized in that: it also comprises controller U, transformer T and metal-oxide-semiconductor Q, the drain electrode of metal-oxide-semiconductor is connected to one end of transformer, the other end of transformer is connected to the output of rectification circuit, ground connection after the source series current sampling resistor R3 of metal-oxide-semiconductor, the grid of metal-oxide-semiconductor is connected to the pwm signal output Out of controller, the secondary coil of transformer exports as power supply output V0 and forms node A, the secondary coil of transformer exports the feedback input end COMP being connected to controller through voltage feedback network.
In the utility model preferred embodiment, comprise described voltage feedback network further and there is divider resistance (R1), solid relay (R2) and photoelectrical coupler (VT), divider resistance R1 one end is connected to node A, the other end of divider resistance R1 is by solid relay (R2) ground connection, the positive pole of the photodiode of photoelectrical coupler (VT) is connected to node A by a three terminal regulator CW, negative pole end is connected between divider resistance (R1) and solid relay (R2), the collector electrode of the phototriode of photoelectrical coupler (VT) is connected to the feedback input end (COMP) of controller, grounded emitter.
In the utility model preferred embodiment, the source electrode comprising described metal-oxide-semiconductor further is also connected to the current sense input CS of controller.
In the utility model preferred embodiment, comprise parallel filtering electric capacity after Schottky diode of also connecting between the secondary coil of described transformer and node A further.
In the utility model preferred embodiment, comprise further between described Schottky diode and node A and be also connected with pressurizer (TS).
In the utility model preferred embodiment, the model comprising described controller U is further LM5023.
Usefulness of the present utility model is: wind power generation adjustable fly-back power circuit of the present utility model, flyback sourse technology is utilized to become adjustable burning voltage to export the electric energy conversion that wind power generation produces, when input voltage fluctuates within a large range, galvanic current still can be had to press export, the direct voltage of output is adjustable at 15V ~ 30V.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the circuit diagram of preferred embodiment of the present utility model.
In figure: 10, filter circuit, 20, rectification circuit, 30, voltage feedback network.
Embodiment
In order to make those skilled in the art person understand the utility model scheme better, and enable above-mentioned purpose of the present utility model, feature and advantage become apparent more, below in conjunction with embodiment and embodiment accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the utility model provides a kind of wind power generation adjustable fly-back power circuit, comprise the filter circuit 10 be connected with wind turbine generator output, the rectification circuit 20 be connected with filter circuit 10, controller U, transformer T and metal-oxide-semiconductor Q, and the voltage feedback network 30 to be connected with transformer T output, the model of preferred controller U is LM5023, there is feedback input end COMP, current sense input CS, pwm signal output Out, the drain D of metal-oxide-semiconductor Q is connected to one end of transformer T primary coil L1, the other end of transformer T primary coil L1 is connected to the output of rectification circuit 20, ground connection after the source S series current sampling resistor R3 of metal-oxide-semiconductor, the source S of metal-oxide-semiconductor is also connected to the current sense input CS of controller U, the grid G of metal-oxide-semiconductor is connected to the pwm signal output Out of controller, the secondary coil of transformer exports as power supply output (V0) and forms node A, the secondary coil L2 of transformer T exports the feedback input end COMP being connected to controller U through voltage feedback network 30.
Described voltage feedback network has divider resistance R1, solid relay R2 and photoelectrical coupler VT, divider resistance R1 one end is connected to node A, the other end of divider resistance R1 is by solid relay R2 ground connection, the positive pole of the photodiode of photoelectrical coupler VT is connected to node A by a three terminal regulator CW, negative pole end is connected between divider resistance R1 and solid relay R2, the collector electrode of the phototriode of photoelectrical coupler VT is connected to the feedback input end COMP of controller, grounded emitter, three terminal regulator CW exports the positive terminal that a stable 2.5V voltage inputs to the photodiode of photoelectrical coupler VT.
Also connect between the secondary coil L2 of described transformer T and node A parallel filtering electric capacity C after Schottky diode D.
Pressurizer TS is also connected with between described Schottky diode D and node A.
Based on above-mentioned technical characteristic, circuit theory of the present utility model is as follows: the 220V alternating current exported from photoelectricity unit is through filter circuit 10 filtering, rectification circuit 20 rectification exports the direct voltage of 380V, the primary coil L1 that this voltage is applied to transformer T is connected to the end through metal-oxide-semiconductor Q and current sampling resistor R3 again, controller U controls its pwm signal Out and exports the grid G that a high-frequency switching signal acts on metal-oxide-semiconductor Q, the metal-oxide-semiconductor of high-speed switch conducting produces the magnetic field of a quick alternation in transformer T, and the voltage signal of primary coil is coupled to secondary coil output, secondary coil produce induced voltage after Schottky diode D and filter capacitor C, again through direct voltage V0 that the 15V ~ 30V of pressurizer TS stable output is adjustable.
In order to improve the stability of output voltage further, have employed and carry out from the secondary coil output sampling voltage of transformer T the voltage feedback network 30 that feeds back, its feedback principle is as follows, output voltage obtains sampled voltage after divider resistance R1 and solid relay R2 dividing potential drop, the resistance value of solid relay R2 is adjustable between (40 Ω ~ 10K Ω), the reference voltage of the 2.5V that this sampled voltage and three terminal regulator CW provide compares, if equal, the electric current then flowing through the photodiode of photoelectrical coupler VT is constant, the electric current flowing through phototriode is constant, the COMP pin current potential of controller is stablized, export the duty ratio driven constant, output voltage stabilization is constant in set point, when output voltage because of certain reason higher time, partial pressure value through divider resistance will be greater than 2.5V, the electric current then flowing pipe photodiode increases, the electric current then flowing through phototriode increases, the COMP pin current potential of controller declines, the duty ratio that Out pin exports driving pulse declines, and output voltage reduces, and this completes the process of feedback regulation.
To sum up, wind power generation adjustable fly-back power circuit of the present utility model, flyback sourse technology is utilized to become adjustable burning voltage to export the electric energy conversion that wind power generation produces, when input voltage fluctuates within a large range, galvanic current still can be had to press export, the direct voltage of output is adjustable at 15V ~ 30V.
Above-described embodiment is the utility model preferably execution mode; but execution mode of the present utility model is not limited by the examples; the change done under other any does not deviate from Spirit Essence of the present utility model and principle, modification, substitute, combine, simplify the substitute mode that all should be equivalence, be included within protection range of the present utility model.Therefore, the protection range that protection range of the present utility model should define with claim is as the criterion.

Claims (6)

1. a wind power generation adjustable fly-back power circuit, comprise the filter circuit be connected with wind turbine generator output, the rectification circuit be connected with filter circuit, it is characterized in that: it also comprises controller (U), transformer (T) and metal-oxide-semiconductor (Q), the drain electrode of metal-oxide-semiconductor is connected to one end of transformer, the other end of transformer is connected to the output of rectification circuit, source series current sampling resistor (R3) ground connection afterwards of metal-oxide-semiconductor, the grid of metal-oxide-semiconductor is connected to the pwm signal output (Out) of controller, the secondary coil of transformer exports as power supply output (V0) and forms node A, the secondary coil of transformer exports the feedback input end (COMP) being connected to controller through voltage feedback network.
2. wind power generation adjustable fly-back power circuit according to claim 1, it is characterized in that: described voltage feedback network has divider resistance (R1), solid relay (R2) and photoelectrical coupler (VT), divider resistance R1 one end is connected to node A, the other end of divider resistance R1 is by solid relay (R2) ground connection, the positive pole of the photodiode of photoelectrical coupler (VT) is connected to node A by a three terminal regulator (CW), negative pole end is connected between divider resistance (R1) and solid relay (R2), the collector electrode of the phototriode of photoelectrical coupler (VT) is connected to the feedback input end (COMP) of controller, grounded emitter.
3. wind power generation adjustable fly-back power circuit according to claim 1, is characterized in that: the source electrode of described metal-oxide-semiconductor is also connected to the current sense input (CS) of controller.
4. the wind power generation adjustable fly-back power circuit according to Claims 2 or 3, is characterized in that: parallel filtering electric capacity after Schottky diode of also connecting between the secondary coil of described transformer and node A.
5. wind power generation adjustable fly-back power circuit according to claim 4, is characterized in that: be also connected with pressurizer (TS) between described Schottky diode and node A.
6. wind power generation adjustable fly-back power circuit according to claim 1, is characterized in that: the model of described controller (U) is LM5023.
CN201520125997.3U 2015-03-05 2015-03-05 Wind power generation adjustable fly-back power circuit Expired - Fee Related CN204559398U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520125997.3U CN204559398U (en) 2015-03-05 2015-03-05 Wind power generation adjustable fly-back power circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520125997.3U CN204559398U (en) 2015-03-05 2015-03-05 Wind power generation adjustable fly-back power circuit

Publications (1)

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CN204559398U true CN204559398U (en) 2015-08-12

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110888481A (en) * 2019-11-07 2020-03-17 深南电路股份有限公司 Output voltage adjustable circuit, control method of output voltage adjustable circuit and chip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110888481A (en) * 2019-11-07 2020-03-17 深南电路股份有限公司 Output voltage adjustable circuit, control method of output voltage adjustable circuit and chip

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150812

Termination date: 20160305