CN2874894Y - Anti-strong wind and stepless unloading wind power generation controller - Google Patents
Anti-strong wind and stepless unloading wind power generation controller Download PDFInfo
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- CN2874894Y CN2874894Y CN 200620069104 CN200620069104U CN2874894Y CN 2874894 Y CN2874894 Y CN 2874894Y CN 200620069104 CN200620069104 CN 200620069104 CN 200620069104 U CN200620069104 U CN 200620069104U CN 2874894 Y CN2874894 Y CN 2874894Y
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Abstract
The utility model discloses a windproof stepless-unloading controller for wind-driven power generator, which comprise main circuit and control circuit. The utility model adopts field effect transistor (FET) and relay to constitute two-stage control system to perform intelligent control via singlechip. Under normal wind speed, electric energy outputted by the wind-driven power generator has two flow directions, on the one hand, energy needed for charging storage battery is satisfied to the full extent, on the other hand, if electric energy outputted by the wind-driven power generator exceeds demand of the storage battery, excessive energy is unloaded by regulating pulse width of the unloading FET. Instead of completely switching on unloading resistance via relay or FET leading to waste of energy, the regulation of pulse width of unloading FET can unload continuously variable energy, i.e., stepless unloading. Under heavy wind, unloading is switched on via the relay, and electrical connection between power generator and inner control system is cut off to protect inner control system. Due to the high impact resistance, the system also miantains high reliability under heavy wind condition.
Description
Technical field
The utility model relates to 5000W following small-size wind power-generating controller, wind light mutual complementing power generation controller and wind light mutual complementing power generation control/inverter.It specifically is a kind of wind power generation controller of controlling charging by off-load.
Background technology
The small-size wind power-generating controller will unload unnecessary energy by off-load when wind energy needs more than charging.Traditional control mode is to adopt power switch pipe (as the MOSFET field effect transistor) or relay to connect off-load after battery tension surpasses certain value to unload, disconnect off-load again after battery tension returns to normal value.
If when adopting power switch pipe to unload, because wind-driven generator can produce the voltage and current more much bigger than rated power under the strong wind state, and the ability of the reactance voltage of power switch pipe and rush of current is not fine, impacted easily and damaged, so cause the reliability deficiency of electricity generating controller.
If adopt relay to come off-load, because it is again in the process with load switch, contact can influence the life-span because of oxidation, and switching frequency is very low.And to realize the stepless unloading of small-sized wind power generator, then must carry out high-frequency pulsed width modulation control to off-load.Carry the HF switch needs so relay can't be finished the band of stepless unloading, thereby can not realize the stepless unloading of wind energy.Thereby the charging effect of relay control is very poor separately.
The utility model content:
The purpose of this utility model provides the wind power generation controller of a kind of anti-strong wind, stepless unloading, has successfully solved the problem of the stepless unloading of blower fan and controller system reliability under the strong wind state.
The technical solution of the utility model is as follows:
The wind power generation controller of anti-strong wind, stepless unloading, it is characterized in that including main circuit and control circuit, main circuit comprises: the unloading resistance R 1 of connecting again after the buffer circuit parallel connection that field effect transistor Q1 and resistance R 2, capacitor C 1 constitute, this branch road two terminations control power supply BAT1, and the three-phase bridge rectification circuit exported of the wind power generation formed by diode D1, D2, D3, D4, D5, D6 of series connection and draw three wind-driven generator output wiring terminal U, V, W, be connected to relay J 1 between this branch road and the full bridge rectifier; Control circuit comprises: the PIC16C72 single-chip microcomputer, the thief hatch RA1 of single-chip microcomputer connects the bleeder circuit that is made of resistance R 3 and R4, capacitor C 2, the voltage signal of resistance R 3 external storage batterys, 13 pin of single-chip microcomputer are received the disconnected anode of input of light idol isolation drive integrated chip TLP250 through current-limiting resistance R7, the input of the TLP250 minus earth of breaking, plug-type output stage 6 pin of TLP250 parallel connection, 7 pin are connected to the grid of main circuit unloading field effect transistor Q1; Be connected with the oscillating circuit of capacitor C 3, C4, crystal oscillator CY1 formation between 9,10 pin of single-chip microcomputer; Be connected with the reset circuit of capacitor C 5, C6, diode D7, resistance R 8, R5 formation single-chip microcomputer between 20,1,19,8 pin of single-chip microcomputer, wherein be in series with filter capacitor C5 between 20,8 or 9 pin, 24 pin of single-chip microcomputer connect the base stage of triode Q2 through resistance R 6, the base electrode of triode Q2 connects diode D8 positive pole, diode D8 negative pole connects capacitor C 7, and the line bag JX1 of electrical equipment J1 is succeeded in diode D8 two end parallel connections.
The wind power generation controller of anti-strong wind, stepless unloading, it is characterized in that including main circuit and control circuit, main circuit comprises: the unloading resistance R 1 of connecting again after the buffer circuit parallel connection that field effect transistor Q1 and resistance R 2, capacitor C 1 constitute, this branch road two terminations control power supply BAT1, and the three-phase bridge rectification circuit exported of the wind power generation formed by diode D1, D2, D3, D4, D5, D6 of series connection and draw three wind-driven generator output wiring terminal U, V, W, be connected to relay J 1 between this branch road and the full bridge rectifier; Control circuit comprises: the PIC16C72 single-chip microcomputer, the thief hatch RA1 of single-chip microcomputer connects the bleeder circuit that is made of resistance R 3 and R4, capacitor C 2, the voltage signal of resistance R 3 external storage batterys, 13 pin of single-chip microcomputer are received the disconnected anode of input of light idol isolation drive integrated chip TLP250 through current-limiting resistance R7, the input of the TLP250 minus earth of breaking, plug-type output stage 6 pin of TLP250 parallel connection, 7 pin are connected to the grid of main circuit unloading field effect transistor Q1; Be connected with the oscillating circuit of capacitor C 3, C4, crystal oscillator CY1 formation between 9,10 pin of single-chip microcomputer; Be connected with the reset circuit of capacitor C 5, C6, diode D7, resistance R 8, R5 formation single-chip microcomputer between 20,1,19,8 pin of single-chip microcomputer, wherein be in series with filter capacitor C5 between 20,8 or 9 pin, 24 pin of single-chip microcomputer connect the base stage of triode Q2 through resistance R 6, succeed the line bag of electrical equipment J1 between the base electrode of triode Q2 and the emitter, base electrode connects diode D8 positive pole, and other has capacitor C 7 and ground connection in parallel with D8.
The utility model adopts field effect transistor and relay to form two polar control systems, utilizes single-chip microcomputer to carry out Based Intelligent Control, and under normal wind speed, the electric energy of wind-driven generator output has two flow directions, on the one hand, guarantees the energy that charge in batteries is required to greatest extent.If the electric energy that wind power generation produced surpasses the needs of storage battery, then unload the pulsewidth of field effect transistor with unnecessary energy removal by adjusting.Rather than connect unloading resistance fully by relay or field effect transistor, connection can cause the waste of energy fully.The pulsewidth of regulating the unloading power tube like this can unload the continually varying energy, promptly stepless unloading.Under the strong wind state, connect off-load by relay, and cut off being electrically connected of blower fan and internal control system, with the protection internal control system.Because the impact resistance of relay is stronger, so the reliability of system under the strong wind state is also very high.
Description of drawings
Fig. 1 is the utility model controller main circuit schematic diagram.
Fig. 2 is the utility model controller controling circuit schematic diagram.
Fig. 3 is the utility model workflow diagram.
Embodiment
The main circuit of the utility model controller as shown in Figure 1.Wherein, diode D1, D2, D3, D4, D5, D6 form the three-phase bridge rectification circuit of wind power generation output, and J1 is a relay, K1 is an air switch, and BAT1 is a storage battery, and R1 is a unloading resistance, Q1 is the unloading field effect transistor, and R2 and C1 constitute the buffer circuit of unloading field effect transistor.
The control circuit of this controller as shown in Figure 2.
Its control core is the PIC16C72 single-chip microcomputer.Wherein, capacitor C 3, C4 and crystal oscillator CY1 constitute the oscillating circuit of single-chip microcomputer.Capacitor C 5 is the filtering of microcontroller power supply.D7, C6, R8 and R5 constitute the reset circuit of single-chip microcomputer.The voltage signal of storage battery by R3 and R4 dividing potential drop after, again through C2 filtering, deliver to the AD thief hatch RA1 that single-chip microcomputer inside carries then, when detecting voltage and reach floating charge pressure point V1, single-chip microcomputer RC2 mouth just sends pulse-width signal, receive the disconnected anode of input of light idol isolation drive integrated chip TLP250 through current-limiting resistance R7, the input of the TLP250 minus earth of breaking.Plug-type output stage 6 pin of TLP250 parallel connection, 7 pin are connected to the grid of main circuit unloading field effect transistor Q1.8 pin of TLP250 be driving power just, 5 pin are driving power ground, the filter action of 8 TLP250 driving powers of capacitor C.Like this, the pulse-width signal of single-chip microcomputer just can carry out pulse width modulation controlled to the break-make of main circuit unloading field effect transistor Q1 by driving integrated chip TLP250.In addition, single-chip microcomputer is according to the battery tension signal of sampling, and the unloading pulsewidth of real-time regulated Q1 makes charge in batteries voltage be no more than floating charge pressure point V1.If voltage continues to be elevated to the pressure point V2 that overcharges, single-chip microcomputer RB3 mouth will send drive signal, after resistance R 6, triode Q2 amplify, the line bag control voltage of engage relay, the relay of main circuit is disconnected, wherein, the filter action of capacitor C 7 initial line bag voltages, the afterflow effect when diode D8 initial line bag turn-offs.In order to prevent the switch repeatedly of relay, at the off voltage of relay with connect between the voltage and set hysteresis, promptly have only when battery tension drops to an electrical voltage point V3 than the low certain value of V2, just single-chip microcomputer sends signal, control relay is connected.
The output of wind-driven generator is connected to U, V, three terminal (if single-phase generators of W, then be connected to wherein two terminals), be connected to the positive pole of storage battery after positive pole after the output rectification of wind-driven generator is opened by relay and sky, the negative pole after the output rectification of wind-driven generator and the negative pole of storage battery directly link to each other.When storage battery during less than its floating charge pressure point V1, relay and sky switch on, and the electric energy after the output rectification of wind-driven generator all charges a battery.Not conducting of unloading field effect transistor Q1, promptly unloading circuit is not worked.When storage battery reached floating charge pressure point V1, the control circuit of accompanying drawing 2 just carried out pulse-width modulation to the unloading field effect transistor, makes the charging voltage of storage battery be no more than the floating charge pressure point, thereby guarantees good charge characteristic.Under the strong wind state, when the electric energy of the output of wind-driven generator surpasses the maximum unloading power sum of storage battery floating charge institute's energy requirement and unloading resistance, the voltage of storage battery can continue to rise, if this moment, voltage rose so high, be easy to make control system to damage, and have a strong impact on the life of storage battery.For protection system, when battery tension overcharged a some V2, control circuit disconnected relay immediately, made electric energy after the output rectification of wind-driven generator and storage battery and control circuit disconnect.Because relay is much higher to the impact resistance specific power switching tube of overvoltage and overcurrent, thereby effectively improved the reliability of system.The program flow diagram of control as shown in Figure 3.
Claims (1)
1, the wind power generation controller of anti-strong wind, stepless unloading, it is characterized in that including main circuit and control circuit, main circuit comprises: the unloading resistance R 1 of connecting again after the buffer circuit parallel connection that field effect transistor Q1 and resistance R 2, capacitor C 1 constitute, this branch road two terminations control power supply BAT1, and the three-phase bridge rectification circuit exported of the wind power generation formed by diode D1, D2, D3, D4, D5, D6 of series connection and draw three wind-driven generator output wiring terminal U, V, W, be connected to relay J 1 between this branch road and the full bridge rectifier; Control circuit comprises: the PIC16C72 single-chip microcomputer, the thief hatch RA1 of single-chip microcomputer connects the bleeder circuit that is made of resistance R 3 and R4, capacitor C 2, the voltage signal of resistance R 3 external storage batterys, 13 pin of single-chip microcomputer are received the disconnected anode of input of light idol isolation drive integrated chip TLP250 through current-limiting resistance R7, the input of the TLP250 minus earth of breaking, plug-type output stage 6 pin of TLP250 parallel connection, 7 pin are connected to the grid of main circuit unloading field effect transistor Q1; Be connected with the oscillating circuit of capacitor C 3, C4, crystal oscillator CY1 formation between 9,10 pin of single-chip microcomputer; Be connected with the reset circuit of capacitor C 5, C6, diode D7, resistance R 8, R5 formation single-chip microcomputer between 20,1,19,8 pin of single-chip microcomputer, wherein be in series with filter capacitor C5 between 20,8 or 9 pin, 24 pin of single-chip microcomputer connect the base stage of triode Q2 through resistance R 6, the base electrode of triode Q2 connects diode D8 positive pole, diode D8 negative pole connects capacitor C 7, and the line bag JX1 of electrical equipment J1 is succeeded in diode D8 two end parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069104 CN2874894Y (en) | 2006-01-26 | 2006-01-26 | Anti-strong wind and stepless unloading wind power generation controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069104 CN2874894Y (en) | 2006-01-26 | 2006-01-26 | Anti-strong wind and stepless unloading wind power generation controller |
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| CN2874894Y true CN2874894Y (en) | 2007-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620069104 Expired - Fee Related CN2874894Y (en) | 2006-01-26 | 2006-01-26 | Anti-strong wind and stepless unloading wind power generation controller |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951000A (en) * | 2010-09-17 | 2011-01-19 | 合肥为民电源有限公司 | Wind power generation main circuit integrating rectification and unloading |
| CN101958682A (en) * | 2010-07-12 | 2011-01-26 | 深圳市安托山技术有限公司 | System for protecting post-stage circuit of wind driven generator |
| CN101958680A (en) * | 2010-07-12 | 2011-01-26 | 深圳市安托山技术有限公司 | High precision control device of windmill generator damp load |
| CN102157960A (en) * | 2011-05-04 | 2011-08-17 | 燕山大学 | Method for anticipation protection and energy regulation of full-power wind turbine generator under symmetrical grid failure |
| CN102437586A (en) * | 2011-12-29 | 2012-05-02 | 欣达重工股份有限公司 | Energy storage and unloading device of wind power generation system and control method thereof |
| CN109936193A (en) * | 2019-03-27 | 2019-06-25 | 合肥为民电源有限公司 | A kind of wind-power electricity generation discharging circuit and unloading control method |
-
2006
- 2006-01-26 CN CN 200620069104 patent/CN2874894Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958682A (en) * | 2010-07-12 | 2011-01-26 | 深圳市安托山技术有限公司 | System for protecting post-stage circuit of wind driven generator |
| CN101958680A (en) * | 2010-07-12 | 2011-01-26 | 深圳市安托山技术有限公司 | High precision control device of windmill generator damp load |
| CN101951000A (en) * | 2010-09-17 | 2011-01-19 | 合肥为民电源有限公司 | Wind power generation main circuit integrating rectification and unloading |
| CN101951000B (en) * | 2010-09-17 | 2012-10-17 | 合肥为民电源有限公司 | Wind power generation main circuit integrating rectification and unloading |
| CN102157960A (en) * | 2011-05-04 | 2011-08-17 | 燕山大学 | Method for anticipation protection and energy regulation of full-power wind turbine generator under symmetrical grid failure |
| CN102437586A (en) * | 2011-12-29 | 2012-05-02 | 欣达重工股份有限公司 | Energy storage and unloading device of wind power generation system and control method thereof |
| CN102437586B (en) * | 2011-12-29 | 2014-05-21 | 欣达重工股份有限公司 | Energy storage and unloading device of wind power generation system and control method thereof |
| CN109936193A (en) * | 2019-03-27 | 2019-06-25 | 合肥为民电源有限公司 | A kind of wind-power electricity generation discharging circuit and unloading control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEFEI WIN POWER CO., LTD. Free format text: FORMER OWNER: ZHANG WEIMIN Effective date: 20110325 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 230088 ROOM 301, INNOVATION CENTER, SCI-TECH PARK, ANHUI UNIVERSITY, NO. 2,TIANDA ROAD, HEFEI CITY, ANHUI PROVINCE TO: 230088 NO. 71, TIANDA ROAD, HEFEI CITY, ANHUI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110325 Address after: 230088 No. 71, Tianda Road, Hefei, Anhui Patentee after: Hefei Win Power Co., Ltd. Address before: 301 room 230088, innovation center, science and Technology Park, Anhui University, 2 Tianda Road, Anhui, Hefei Patentee before: Zhang Weimin |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 Termination date: 20150126 |
|
| EXPY | Termination of patent right or utility model |