CN2328122Y - Special converter for wind and solar power generation - Google Patents
Special converter for wind and solar power generation Download PDFInfo
- Publication number
- CN2328122Y CN2328122Y CN 98232761 CN98232761U CN2328122Y CN 2328122 Y CN2328122 Y CN 2328122Y CN 98232761 CN98232761 CN 98232761 CN 98232761 U CN98232761 U CN 98232761U CN 2328122 Y CN2328122 Y CN 2328122Y
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- circuit
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- control circuit
- energy storage
- storage battery
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Abstract
The utility model relates to a special converter for wind and solar power generation, composed of a rectifying circuit, a charging control circuit, an energy storing accumulator, an over (under) voltage protection circuit, an inversion control circuit and a power output and voltage boosting circuit. The utility model is characterized in that the charging control circuit is also connected with a shunt load by leading in a return difference control circuit which is compared with the highest and the lowest reference voltage of the energy storing accumulator. Besides, the utility model also comprises a correction circuit for output waveform. The utility model organically combines the charging control and the inverter control, which furthest utilizes natural wind force and solar energy resource.
Description
The utility model relates to the control inverter of a kind of wind-force, solar power generation special use.
As the control inverter of wind-force, solar power generation special use, require it both to have general charge controller and the general character of inverter on structure and performance: promptly little, the output frequency of its no-load power consumption is stable, load capacity is strong, inversion efficiency is high, discharge and recharge synchronously etc.Simultaneously also must in the face of and can adapt to the changeable of the Nature, that is to say, no matter be bright and sunny or a gale is blowing all can make the operating state of control inverter keep normal and have wind light mutual complementing.Secondly; storage battery is as energy storage device; the quality of its operating state directly has influence on the length of whole device lifetime; must increase defencive function, promptly when final voltage only falls in battery tension, must stop automatically discharging storage battery; treat that energy can continue when obtaining replenishing to use; when storage battery restrains to full capacity, must stop charging again, and existing wind-force, solar energy control inverter all lacks the safeguard measure of this respect.In addition, the output waveform of controlling inverter as wind-force, solar energy also must possess relative stability, promptly should improve the load capacity of output waveform.
The purpose of this utility model is to propose a kind of special-purpose control inverter of wind-force, solar power generation that discharges and recharges control and inversion control that integrates.
The realization the technical solution of the utility model is as follows; it is by rectification circuit; buffer circuit; charging control circuit; the energy storage storage battery; overvoltage crowbar; inverter control circuit; under-voltage protecting circuit; power output circuit; voltage lifting circuit is formed; its architectural feature is; a) above-mentioned charging control circuit is by introducing the return difference control circuit of comparing with the highest and minimum reference voltage of energy storage storage battery; also join with a minute current load; b) it also comprises the output waveform correcting circuit; described output waveform correcting circuit be by; be connected to the direct current regulation circuit between energy storage storage battery and the inverter control circuit; 50Hz weighing apparatus frequency source signal and phase inverter; and the sampling amplification circuit and the pulse-width modulation circuit that are connected between voltage lifting circuit and the inverter control circuit are formed
Characteristics of the present utility model and good effect are as follows,
(1) adopts branch current load and return difference control, overvoltage, under-voltage protecting circuit, make native system work safety, reliable, can effectively avoid the premature damage of generator and energy storage storage battery.
(2) driving pulse limit for width guarantees that two paths of signals is not overlapping; Spike absorbs network, overvoltage, under-voltage protecting circuit, capacitively coupled, interchange promotion output power stage, and these measures have improved the reliability of circuit effectively.
(3) the tapped connection of transformer adopting makes the promotion electric current become the part of inverter current, and selects the low consumption components and parts for use, thereby system effectiveness is greatly improved.
(4) form negative feedback by output voltage sampling and amplifying circuit,, make output voltage under different loads, keep stable with the control impuls width modulated.
(5) charging control and organically combination of inversion control make to have maximally utilised natural wind and solar energy resources.
(6) each circuit block (control and indicating circuit use a plate, and power amplifier partly uses a plate) independent design, installation reduce interconnector to greatest extent.This make whole device production, the maintenance very convenient and swift.
The utility model is described in further detail below in conjunction with accompanying drawing,
Fig. 1 is a circuit block diagram of the present utility model,
Fig. 2 is the circuit diagram of the utility model embodiment.
As shown in Figure 1, operation principle of the present utility model is:
The three-phase alternating current that wind-driven generator sends, to [energy storage storage battery] charging, the direct current that solar photoelectric equipment sends also charges to [energy storage storage battery] through [buffer circuit] and [control of charging] through [three phase rectifier] and [buffer circuit] warp [charging control].When [energy storage storage battery] was sufficient, [overvoltage protection] circuit start made [branch current load] work by [charging control] circuit, no longer charges to [energy storage battery].When [energy storage storage battery] when energy drops to certain value, [branch current load] quits work, and continues to charge to [energy storage storage battery].During electricity consumption; [energy storage storage battery] powers to [user load] through [inversion control], [buffer circuit], [power output], [voltage lifting]; when [energy storage storage battery] when voltage is reduced to final voltage; [under-voltage protection] circuit working; force inversion work to stop, having only the power supply of when [energy storage storage battery] energy obtains replenishing and surpasses final voltage, can starting shooting again.[DC voltage-stabilizing] circuit produces 9～12v DC power supply from [energy storage storage battery], for [50Hz weigh frequency source signal] provides power supply, [50HZ weigh frequency source signal] produces 50HZ weighing apparatus square wave frequently, and [sampling is amplified] circuit is taken a sample from output voltage, through [pulse-width modulation] control output voltage value stable automatically.The maximum current of [overload current limliting] circuit limitations circuit guarantees the safety of other mechanical part.[absorption network] absorbs the output waveform clutter, the safety of protection [power output] level and transformer.
Circuit:
As shown in Figure 2: the direct current that solar photocell is exported, warp " isolation " diode D6 is to the energy storage charge in batteries, another road, after the three-phase bridge rectifier rectification of forming via D20～D25 by the three-phase alternating current of wind-driven generator output, become the single-phase DC electricity to the energy storage charge in batteries, here the rectifier bridge that D20～D25 formed also has the buffer action that prevents that the energy storage storage battery from instead powering to generator.The charging control loop of being made up of R5, DW1, DW2, BG1, BG2 that is connected with the energy storage storage battery simultaneously detects the terminal voltage of energy storage storage battery.When the terminal voltage of energy storage storage battery was lower than 31V when being full of, when promptly being lower than the conducting voltage of DW1+DW2=31V, DW1, DW2 ended; BG2 ends because of no base current, and BG1 ground level high level instead ends partially, and [circuit breaker] is failure to actuate, and charge power supply all flows to the energy storage storage battery.In case energy storage storage battery abundance, DW1, DW2 conducting when its terminal voltage is increased to 31V, BG1, BG2 become conducting J adhesive by ending, its normal opened contact JK connects and divides current load, make the charging current shunting, after the BG1 conducting, make the conducting voltage of the detection sample circuit of forming by DW1, DW2 become 27V by 31V.(this is worth for after the energy storage storage battery abundance, recovery value after the shunting off-load) when the terminal voltage of energy storage storage battery is reduced to normal value 27V owing to the shunting off-load, DW2 is become by conducting and ends, BG2 ends again, the ground level level of BG1 is ended by low uprising, J disconnects, divide current load to stop shunting, the overvoltage indicator light of being made up of the luminous second tube sheet of R4 simultaneously also extinguishes, the energy storage storage battery is in normal charged state, when reaching 31V, repeats the energy storage battery tension said process again automatically, make the energy storage accumulator voltage remain at normal condition between the 27-31V, generator can not damaged or other former thereby running light because of the storage electricity, the operating value of DW1+DW2 decision shunting off-load, DW2 is a recovery value, and this circuit has guaranteed the return difference (4V) between the two-value effectively, makes circuit breaker J can not appear near the phenomenon of vibrating back and forth the operating value.The power stage of inverter is by BG5; BG7; BG8; four transistors of BG9 are formed a push-pull circuit; R11～R16 is the feedback and the inclined to one side value resistance of power stage; the centre cap of primary winding connects other four end taps of positive terminal power supply (battery just) and receives corresponding crystal pipe collector plate promotion pipe BG5 respectively; BG8; power tube BG7; BG9); power tube elementary winding alternately break-make to ground; D4; D5 is BG7; the protection second tube sheet of BG9; by C6; R14; C17 and power tube emitter magnet ring are formed spike and are absorbed circuit (R14 is the piezo-resistance that responds fast); in case the high pressure spike damages power tube; the control voltage of power and promotion level is from oscillator IC1; the 50HZ square-wave signal of IC1 output is divided into 2 the tunnel; one the tunnel through R20; D7; R22 delivers to the IC2c shaping and transfers wide; another road is through R21; the IC2a paraphase is after D8; R23; it is wide that R24 delivers to IC2c shaping accent, here by R25; R26 decision two paths of signals can not overlap each other.Finish pulse-width modulation by BG10; promptly export the voltage stabilizing process; as described below: the variation of output voltage is through R41; D19; R42; send BG14 to amplify after the W rectification; arrive pulse width control pipe BG10 base stage through R44; the then BG10 internal resistance that raises of this voltage reduces; make IC2b; the output pulse width of IC2c narrows down; then the situation variation was opposite when the output voltage of 220V reduced; therefore the width of pulse determines the height of output voltage; thereby make output voltage keep relative stablizing; IC2b; the two-way complementation of IC2c output; the 50HZ signal is respectively through C10; C11 is after straight; deliver to BG11; BG12 amplifies; signal after the amplification is via D14; D15 drives two-way power stage BG5 respectively; BG7 and BG8; the BG9 alternation is under on off state; BG13 is the electronic switch of inverter controller, C12; D16 is the delayed startup circuit, the under-voltage overload protection control of being made up of IC2d etc.When the energy storage battery tension is lower than 21V, DW3, BG4 ends, the 50HZ signal is through R6, R7 makes the controllable silicon conducting, positive supply is through R8, be added to the C point behind D3 and the controllable silicon and make the BG13 conducting, with the drive signal shorted to earth, power stage is quit work, when the energy storage battery tension is elevated to normal value and just starts working during from new startup inversion process, by R18, R37, C14 forms current sampling circuit, when the G point voltage is raise, this voltage is through the IC2d amplification and by R36, the reference voltage that R40 forms relatively after, if G＞F, IC2d exports high level, passes through D16, R32 makes the BG13 conducting, inversion stops, because the positive feedback of R35 can not automatically terminate this state, reduce simultaneously to working power, and just work when restarting, D17 is an overload light.DW4, R29 provide stable working power for the The whole control circuit, and the delayed startup circuit that C12, D16 form is just devoted oneself to work behind signal output and control loop working stability with the guaranteed output level, avoids being promoted by bad waveform and damaging.
Claims (1)
1, a kind of wind-force, the special-purpose control inverter of solar power generation; it is made up of rectification circuit, buffer circuit, charging control circuit, energy storage storage battery, overvoltage crowbar, inverter control circuit, under-voltage protecting circuit, power output circuit, voltage lifting circuit; it is characterized in that
A). above-mentioned charging control circuit also joins with a minute current load by introducing the return difference control circuit of comparing with the highest and minimum reference voltage of energy storage storage battery,
B). it also comprises the output waveform correcting circuit, described output waveform correcting circuit be by, be connected to direct current regulation circuit, 50Hz weighing apparatus frequency source signal and phase inverter between energy storage storage battery and the inverter control circuit, and the sampling amplification circuit and the pulse-width modulation circuit that are connected between voltage lifting circuit and the inverter control circuit are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232761 CN2328122Y (en) | 1998-05-29 | 1998-05-29 | Special converter for wind and solar power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232761 CN2328122Y (en) | 1998-05-29 | 1998-05-29 | Special converter for wind and solar power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2328122Y true CN2328122Y (en) | 1999-07-07 |
Family
ID=33981625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98232761 Expired - Fee Related CN2328122Y (en) | 1998-05-29 | 1998-05-29 | Special converter for wind and solar power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2328122Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931215A (en) * | 2010-04-16 | 2010-12-29 | 艾默生网络能源有限公司 | Wind, light and electricity integrated system and over-voltage protection method of rectifier thereof |
| CN102480138A (en) * | 2010-11-22 | 2012-05-30 | 中兴通讯股份有限公司 | Power system and hybrid power-on and power-down control method |
| CN102622028A (en) * | 2012-02-29 | 2012-08-01 | 东莞市星火太阳能科技股份有限公司 | Control circuit of controller of solar power generation system |
| CN101802396B (en) * | 2007-09-14 | 2012-09-19 | 维克多·弗拉迪米洛维奇·特萨雷夫 | Autonomous power supply system |
| CN102687089A (en) * | 2010-01-19 | 2012-09-19 | 欧姆龙株式会社 | MPPT controller,solar battery control device, solar power generation system,mppt control program,and control method for mppt controller |
| CN101714770B (en) * | 2009-12-16 | 2013-10-02 | 中国科学院上海微系统与信息技术研究所 | Field high efficiency wind and solar generation system and method |
-
1998
- 1998-05-29 CN CN 98232761 patent/CN2328122Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101802396B (en) * | 2007-09-14 | 2012-09-19 | 维克多·弗拉迪米洛维奇·特萨雷夫 | Autonomous power supply system |
| CN101714770B (en) * | 2009-12-16 | 2013-10-02 | 中国科学院上海微系统与信息技术研究所 | Field high efficiency wind and solar generation system and method |
| CN102687089A (en) * | 2010-01-19 | 2012-09-19 | 欧姆龙株式会社 | MPPT controller,solar battery control device, solar power generation system,mppt control program,and control method for mppt controller |
| CN102687089B (en) * | 2010-01-19 | 2015-07-22 | 欧姆龙株式会社 | MPPT controller,solar battery control device, solar power generation system, and control method for MPPT controller |
| CN101931215A (en) * | 2010-04-16 | 2010-12-29 | 艾默生网络能源有限公司 | Wind, light and electricity integrated system and over-voltage protection method of rectifier thereof |
| CN101931215B (en) * | 2010-04-16 | 2013-06-05 | 艾默生网络能源有限公司 | Wind, light and electricity integrated system and over-voltage protection method of rectifier thereof |
| CN102480138A (en) * | 2010-11-22 | 2012-05-30 | 中兴通讯股份有限公司 | Power system and hybrid power-on and power-down control method |
| CN102480138B (en) * | 2010-11-22 | 2014-04-30 | 中兴通讯股份有限公司 | Power system and hybrid power-on and power-down control method |
| CN102622028A (en) * | 2012-02-29 | 2012-08-01 | 东莞市星火太阳能科技股份有限公司 | Control circuit of controller of solar power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |