CN101951009A - Novel household small wind driven generator - Google Patents
Novel household small wind driven generator Download PDFInfo
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- CN101951009A CN101951009A CN2010101334209A CN201010133420A CN101951009A CN 101951009 A CN101951009 A CN 101951009A CN 2010101334209 A CN2010101334209 A CN 2010101334209A CN 201010133420 A CN201010133420 A CN 201010133420A CN 101951009 A CN101951009 A CN 101951009A
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Abstract
The invention discloses a novel household small wind driven generator, which has multistage switching devices. In the wind driven generator, an alternating current switching unit (11) is linked with a direct current switching unit (31) synchronously, and a switching generator winding (10) is connected with the circuit of a rectifier bridge (12) and the circuit of a storage battery pack (32) for changing the rated working voltage of the generator, regulating a minimum charging wind speed and adapting to the long-term change of a wind environment; a charging switching unit (21) and an intermitted switching unit (22) can interact alternately; when the wind speed is normal, the storage battery is charged continuously; when the intensity of wind power changes, the circuit connection of the generator is switched automatically; when the wind power reduces, intermitted charging is switched on; the idle rotating speed and voltage of the generator are improved by using charging intermittence; when the idle voltage rises to an intermitted charging switching value, an intermitted charging circuit is connected; and thus, gentle wind can be used for generating power and charging in an intermitting-charging alternately switching mode.
Description
Technical field
The invention belongs to the wind energy generating plant field, relate to a kind of from the net rechargeable small-sized wind power generator, be the novel family small-sized wind power generator that possesses multiple generating-charging pattern specifically.
Background technology
Wind-powered electricity generation is a kind of free of contamination clean energy resource,, installation less demanding to wind environment from the rechargeable small-sized wind power generator of net moved conveniently, operator-less operating cost is very low, be fit to user away from the electrical network generating of independently installing, provide low power life, the electricity consumption of working.Rechargeable small-sized wind power generator adapted batteries to store energy, operational mode are single, have only when wind-force greater than minimum charging wind speed, when output voltage is higher than battery tension just to charge in batteries, when wind-force between minimum charging wind speed with generator idle running when starting between the wind speed, wind-force generator stall when starting wind speed.The voltage form and the minimum charging wind speed of existing various small-sized wind power generator products are fixed value, for example the FD-400 of GuangZhou, China and the U.S. southwest energy company products such as AIR-X, minimum charging wind speed is respectively 5.5m/s and 4.5m/s, and rated voltage then has different systems such as 12V, 24V.Product with multiple standard specification is selected for the user, though can remedy the single deficiency of small-sized wind power generator operational mode, but design, production cost have also been increased, and changeless voltage form and minimum charging wind speed, the chronicity of environment wind-force changes in the time of can not adapting to user migration or season transition, can not utilize low velocity wind energy generating, charging in real time.In order effectively to utilize low velocity wind energy, the solution that Chinese patent ZL200820121908.8 " a kind of low wind velocity charging controller for minitype wind power generator " and ZL200620054077.8 " increasing apparatus of wind-driven generator " are proposed is that the low voltage of utilizing the DC-DC electronic boost-up circuit that generator is sent when the slow-speed of revolution promotes the back to charge in batteries.Though the DC-DC booster circuit helps to improve generator low speed charging performance, but booster circuit itself is also wanted power consumption, particularly under long-term " the average wind-force " of installation environment levels off to the situation of minimum charging wind speed, unit is because of being in big current boost for a long time repeatedly and charging or the direct charged state of little electric current influencing the complete machine operational efficiency.The minimum charging wind speed and the charging modes of regulator generator, the operational mode of unit is better conformed, and the chronicity of wind-force changes and the real-time change of wind speed, improve wind energy utilization, has not yet to see minimum charging wind speed adjustable family usefulness small-sized wind power generator or disclosed technical scheme.
Summary of the invention
At the changeless defective of single, the minimum charging wind speed of existing small-sized wind power generator operational mode, the technical problem to be solved in the present invention is that a kind of novel family small-sized wind power generator that can regulate minimum charging wind speed, possess multiple generating-charging pattern is provided.
The present invention solves the scheme that its technical problem adopts, correlation according to battery tension and minimum charging voltage, minimum charging voltage and the minimum charging wind speed of generator, and the inversely prroportional relationship between generator speed and the charging load, multipole switching mechanism is set: specified DC charging voltage switching mechanism can be set, specified DC charging voltage and the dual switching mechanism of the specified ac output voltage of motor also can be set, reach the purpose of regulating minimum charging wind speed, adapting to the variation of wind environment chronicity; Unit trickle charge and intermittent charge switching mechanism are set, reach the purpose of regulator generator charge mode, adaptation wind speed real-time change; Alternately switching mechanism of generator unloading-loading is set, utilizes the charging after the unloading intermittently to accumulate motor coasting energy, reach rev up, the purpose of booster tension.
In above-mentioned multistage switching device shifter, the element circuit of direct current switching mechanism be connected with the batteries interface circuit (element circuit that exchanges switching mechanism is connected with generator windings); The charging switching mechanism is connected with the direct current switching mechanism with rectifier with the element circuit of switching mechanism at intermittence, and its element circuit mainly is made of electronic switch control circuit, sampling sensing circuit, reference circuit and prewired circuit etc.Real-time change along with wind speed, the sampled circuit of variable such as the rotating speed of generator, voltage, electric current are fed to electronic switch control circuit, when the sampling variable satisfies when presetting switching condition, electronic switch switches corresponding circuit and connects, change the running status and the charge mode of unit, just often switch to the connection status of continuous loading charge mode at wind speed, when wind speed is lower than minimum charging wind speed, switch to the connection status that intermittently loads charge mode; Under the intermittent charge pattern, alternately switch the connection status of unloading-load operating.
Beneficial effect of the present invention is, improves the adaptability that small-sized wind power generator changes wind environment, improves the unit operating efficiency, reduces the specification and the design production cost of product, makes things convenient for the user to select.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the block diagram of multistage switching device shifter in an embodiment of the present invention
Fig. 2 is the circuit diagram of multistage switching device shifter among Fig. 1 embodiment.
Fig. 3 is the main program flow chart of another kind of embodiment multistage intelligent switching device shifter.
Among the figure, 01. generator windings, 11. exchange switch units, 12. rectifier bridges, 21. charging switch units, 22. switch units intermittently, 31. direct current switch units, 32. batteries.
Embodiment
Among Fig. 1, multistage switching device shifter exchanges switch unit 11 by what be provided with between generator windings 01 and the rectifier bridge 12, and the charging switch unit 21 that is provided with between rectifier bridge 12 and the batteries 32 and " current sampling " circuit thereof, intermittence switch unit 22 and " voltage sampling " circuit and direct current switch unit 31 be interconnected to constitute. Exchange switch unit 11 and 31 synchronous interactions of direct current switch unit, charging switch unit 21 intersects interactive with the switch unit 22 of having a rest.
In the circuit of multistage switching device shifter shown in Figure 2, switch member K1-1～3 that exchange switch unit 11 are connected with three-phase winding L A, LB, LC and rectifier bridge 12 respectively, three phase windings among the figure connect for the Y type, and tumbler switch spare K1-1～3 can switch to the △ type and connect.Two 12V storage battery E1, E2 of batteries 32 are connected with switch member K2-1, the K2-2 of direct current switch unit 31, and tumbler switch spare K2-1, K2-2 can switch the connection status of E1, E2, and E1 is in parallel with E2 among the figure.Switch member K1-1～3, K2-1～3 are linked switch, and both synchronous switchings can keep three phase windings to mate mutually with the combination that is connected of batteries.Be connected to " the Y type-series connection " of three-phase winding L A, LB, LC and storage battery E1, the E2 of generator makes up among the figure, and its unit voltage form is 24V, and corresponding minimum charging wind speed is higher, is applicable to the long-term average stronger environment of wind-force.Wind-driven generator also can insert monomer 24V storage battery, vacant connectivity port P2, P3 if be fixed for the 24V standard between storage battery connectivity port P1, P4; Upset linked switch spare K1-1～3 can switch to being connected of generator windings and batteries " △ type-parallel connection " combination with K2-1～3, and at this moment the unit voltage form is 12V, and minimum charging wind speed also decreases, and are applicable to the long-term average more weak environment of wind-force.In the connection combination of " △ type-parallel connection ", the more preceding reduction of voltage form half, and three phase windings by the Y type connect switch to the △ type and connect after, under same speed conditions ac output voltage descend not enough half, this voltage drop weak for wind-force, when generator speed is low can play compensating action.Wind-driven generator also can insert monomer 12V storage battery, vacant two other port from storage battery connectivity port P1, P2 or P3, P4 if place the 12V standard for a long time.
JI in charging switch unit 21 circuit is the induction by current sampling controller, and U1 is adjustable shunt, and the electric current that is used to regulate, be provided with J1 opens the control point, and charging diverter switch KJ is subjected to the control of JI, and KJ is in the charging gear among the figure.Intermittently the circuit of control unit 22 comprises electronic switching circuit Q, and the voltage sample circuit that constitutes by resistance R, potentiometer U2, potentiometer U2 is used to regulate, be provided with the size that opens control voltage, constitute changeable reference circuit by the K2-3 in voltage-stabiliser tube DZ1, DZ2 and the coupled switch, the reference voltage that suitably is higher than battery tension is set, helps to promote rotating speed, voltage and the inertia cumulative effect of wind wheel and generator no-load running.
Charge normal with the handoff procedure of gentle breeze charging as follows: during normal wind speed, the high voltage of rectifier bridge 12 outputs through extremely low J1, the U1 of KJ and internal resistance directly to storage battery trickle charge.When below wind speed is reduced to minimum charging wind speed, causing commutating voltage to descend, charging current is reduced to the electric current control starting value, diverter switch KJ is the intermittent charge state by diagram trickle charge state turnover, at this moment because a point voltage is lower than the reference voltage that c is ordered, electronic switch Q keeps off state, generator unloading.The rotating speed of generator unloading back wind wheel in gentle breeze improves constantly, the floating voltage of inertia energy and generator rises gradually.The sampling voltage of ordering as b rise to preset open the control value time, electronic switch Q conducting, to charge in batteries, diverter switch KJ recovered and keeps charged state commutating voltage when electric current was flowed through sampling controller J1 through electronic switch Q and current sampling controller J1.Continue under the faint situation at wind-force, the rotating speed after the generator carrying begins to descend, charging current reduces thereupon, and when electric current dropped to the control starting value of JI, circuit overturn once more and is cumulative-intermittence state.When wind speed goes back up to minimum charging wind speed when above, will keep high rotational speed after the generator carrying, charging current continues the electric current control starting value greater than JI, diverter switch KJ then keeps continuous charged state.At very low velocity or when calm, what the voltage that voltage sampling point c is ordered was lower than intermittent charge all the time opens the control value, and generator is kept unloading idle running or stop state.In the charging intermittent time, diode D can prevent the reverse discharge of storage battery.
Shown in Figure 3 is the main program flow chart of the multistage intelligent switching device shifter of another kind of embodiment.Present embodiment is provided with three grades of switching device shifters of microcomputer programization, and wherein the working form changeover program is monitored the storage battery rated voltage automatically, driven 12V, 24V standard switching mechanism; The charge mode changeover program is monitored the variation of wind speed, generator speed and charging current automatically, the corresponding charging switching mechanisms such as normal fast trickle charge, low speed intermittent charge and hypervelocity control that drive; The intermittent charge changeover program drives alternately switching mechanism of unloading, charging.
In the multistage switching device shifter schematic diagram of above each embodiment, simple in the controller under-voltage, overvoltage, overcurrent, overcharge, GPF (General Protection False unit and control circuit such as overheated and short circuit.
In the multistage switching device shifter of the present invention, switch the implementation of AC and DC rated voltage, can adopt mechanical switch also can adopt electronic switching circuit as embodiment; The alternately switching mode of inertia cumulative-intermittent charge can adopt current sampling, constant pressure start switching mechanism as embodiment, also can adopt with rotating speed sampling, timing to start switching mechanism.Multistage switching device shifter of the present invention can also adopt the intelligence control system of microcomputer programming.
Claims (4)
1. can regulate the novel family small-sized wind power generator that minimum charging wind speed possesses multiple generating-charging pattern for one kind, it is characterized in that: described wind-driven generator is provided with multistage switching device shifter.
2. according to claim 1ly can regulate the novel family small-sized wind power generator that minimum charging wind speed possesses multiple generating-charging pattern, it is characterized in that: its multistage switching device shifter is by rated operational voltage switch unit and charging switch unit, intermittently switch unit constitutes.
3. according to claim 1ly can regulate the novel family small-sized wind power generator that minimum charging wind speed possesses multiple generating-charging pattern, it is characterized in that: the rated operational voltage switch unit in the multistage switching device shifter, it can be storage battery dc rated voltage switch unit, also can be batteries dc rated voltage and the dual switching mechanism of generator alternating current output voltage, its AC and DC switches synchronous interaction.
4. according to claim 1ly can regulate the novel family small-sized wind power generator that minimum charging wind speed possesses multiple generating-charging pattern, it is characterized in that: charging switch unit in the multistage switching device shifter and generator operation state intermittently switch unit can alternately switch connection status, interactive circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101334209A CN101951009A (en) | 2009-07-15 | 2010-03-02 | Novel household small wind driven generator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920153593 | 2009-07-15 | ||
| CN200920153593.X | 2009-07-15 | ||
| CN2010101334209A CN101951009A (en) | 2009-07-15 | 2010-03-02 | Novel household small wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101951009A true CN101951009A (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101334209A Pending CN101951009A (en) | 2009-07-15 | 2010-03-02 | Novel household small wind driven generator |
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| Country | Link |
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| CN (1) | CN101951009A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3909685A (en) * | 1974-01-14 | 1975-09-30 | Massachusetts Inst Technology | Electrical apparatus |
| JPH1198709A (en) * | 1997-09-24 | 1999-04-09 | Zephyr Kk | Charging pump circuit apparatus |
| JP2004064807A (en) * | 2002-07-24 | 2004-02-26 | Ebara Corp | Wind-power generator and its operation method |
-
2010
- 2010-03-02 CN CN2010101334209A patent/CN101951009A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3909685A (en) * | 1974-01-14 | 1975-09-30 | Massachusetts Inst Technology | Electrical apparatus |
| JPH1198709A (en) * | 1997-09-24 | 1999-04-09 | Zephyr Kk | Charging pump circuit apparatus |
| JP2004064807A (en) * | 2002-07-24 | 2004-02-26 | Ebara Corp | Wind-power generator and its operation method |
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Addressee: Wu Xiang Document name: Notification of Acceptance of Patent Application |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Application publication date: 20110119 |