CN204190478U - A kind of charging circuit of small-sized wind power generator - Google Patents
A kind of charging circuit of small-sized wind power generator Download PDFInfo
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- CN204190478U CN204190478U CN201420568003.0U CN201420568003U CN204190478U CN 204190478 U CN204190478 U CN 204190478U CN 201420568003 U CN201420568003 U CN 201420568003U CN 204190478 U CN204190478 U CN 204190478U
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- resistance
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- storage battery
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Abstract
The utility model discloses a kind of charging circuit of small-sized wind power generator, switching tube is selected to drive simply, driving power is little, switching speed is fast and the electric power MOSFTE that operating frequency is high.Charge normal two metal-oxide-semiconductor alternate conduction and shutoff in situation to charge a battery, when extraneous wind speed is excessive, battery charging current may be excessive, at this moment CPU will adjust the ON time of the MOS1 on main charging circuit, thus adjustment charging current, prevent storage battery from shortening the life-span because of large current charge like this.The nonabsorbable electric energy of storage battery by MOS2 conducting on electric power generation unloading resistance R, thus will protect storage battery.
Description
Technical field
The utility model relates to technical field of wind power generation, in particular to a kind of charging circuit of small-sized wind power generator.
Background technology
China is vast in territory, and inhabitant distribution Dong Duoxi is few.Consider the power consumption characteristics of the residents such as the fisherman lived on backwoodsman agriculture, herdsman and island, coastal area, limit, coast defence sentry post, communications tower station and microwave relay station, cover with normal grid that they are very difficult, and very uneconomical.Therefore in many outlying districts of China, electricity shortage causes economy, the serious backwardness of Culture & Education.But because the general wind resource in these areas is abundanter, therefore wideling popularize small-sized wind power generator systematic difference in these areas also will be a kind of more satisfactory strategy.
The electric energy decapacitation equipment that wind turbine generator generally sends by small-sized wind power generator stores (generally using storage battery), reoffers to load (can direct current supply, also can be transformed to inverter and exchange supply user) when needing.Common independent operating miniature wind power generation system block diagram as shown in Figure 1, comprises wind energy conversion system 10, the controller 20 be connected with wind energy conversion system 10, the storage battery 30 be connected with controller 20, the AC load 50 be connected with storage battery 30 by inverter 40, the DC load 60 that is connected with storage battery 30.
Because the randomness of wind energy and the change at any time of unsteadiness and load make existing Small Wind-electric Systems still there is many problems.Existing system generally adopts generator output directly to charge to storage battery; the charging device of storage battery all has deficient, over-pressure safety device, if voltage fluctuation is unstable, amplitude of variation is larger; the frequent action of these devices will certainly be caused, direct impact is caused on the life-span of these protective devices.Generally speaking, miniature wind power generation system is due to cost, and the safeguard measure of generator and storage battery is fairly simple, this just cause the combined reliability of system and efficiency poor, often do not reach design service life.
Summary of the invention
The technical problem that the utility model solves: small-sized wind power generator of the prior art, due to the randomness of wind energy, when extraneous wind speed is excessive, battery charging current may be excessive, makes storage battery shorten the life-span because of large current charge.
The utility model provides following technical scheme: a kind of charging circuit of small-sized wind power generator, comprise three-phase current input, electric capacity one, electric capacity two, MOSFET pipe one, MOSFET pipe two, inductance one, inductance two, electric power generation unloading resistance, diode, switch, storage battery, described three-phase current input is provided with rectifier diode.Described electric capacity one is in parallel with three-phase current input, described MOSFET pipe two and electric power generation unloading resistance serial connection, the MOSFET pipe two of described serial connection and electric power generation unloading resistance in parallel with electric capacity one, described MOSFET pipe one is in parallel with MOSFET pipe two, described inductance one is connected in series with inductance two, described inductance one and inductance two are connected in series with MOSFET pipe one, described inductance two is connected with the positive pole of storage battery by switch, described electric capacity two is in parallel with storage battery, the positive pole of described electric capacity two is connected between inductance one and inductance two, described diode is in parallel with electric capacity two, the negative pole of described diode is connected between MOSFET pipe one and inductance one.
By technique scheme, when one conducting of MOSFET pipe, circuit charges to electric capacity two by inductance one, and when MOSFET pipe one turns off, electric capacity two is charged a battery by inductance two.Wherein, inductance one, inductance two are that smoothing current is used.Charge normal two MOSFET pipe alternate conduction and shutoff in situation to charge a battery, when extraneous wind speed is excessive, battery charging current may be excessive, at this moment CPU will adjust the ON time of the MOSFET pipe one on main charging circuit, thus adjustment charging current, prevent storage battery from shortening the life-span because of large current charge like this.The nonabsorbable electric energy of storage battery by MOSFET pipe two conducting on electric power generation unloading resistance, thus will protect storage battery, i.e. stall protection.
Further illustrate as of the present utility model, electric capacity one is polar capacitor, strobes.
Improve further as the utility model, charging circuit described in the utility model also comprises light-emitting diode one, resistance three, and described light-emitting diode one is connected in series with resistance three, and light-emitting diode one and the resistance three of described serial connection are in parallel with three-phase current input.The bright expression wind energy conversion system of light-emitting diode one lamp has been connected and can have been charged a battery.
Improve further as the utility model, charging circuit described in the utility model also comprises light-emitting diode two, light-emitting diode three, resistance four, resistance five, described light-emitting diode two is connected in series with resistance four, light-emitting diode two and the resistance four of described serial connection are in parallel with storage battery, described light-emitting diode three is connected in series with resistance five, and light-emitting diode three and the resistance five of described serial connection are in parallel with storage battery.The bright expression reverse connection of accumulator of light-emitting diode two lamp.The bright expression storage battery of light-emitting diode three lamp connects normal.
Further illustrate as of the present utility model, the value of described inductance one is 10k ohm, the value of described inductance two is 10k ohm, the value of described resistance three is 1k ohm, the value of described resistance four is 1k ohm, and the value of described resistance five is 1k ohm, and the value of described electric power generation unloading resistance is 500k ohm, the value of described electric capacity one is 100u farad, and the value of described electric capacity two is 100u farad.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is the miniature wind power generation system block diagram of independent operating of the prior art;
Fig. 2 is the charging circuit figure of a kind of small-sized wind power generator of the utility model.
Symbol description in figure:
10-wind energy conversion system;
20-controller;
30-storage battery;
40-inverter;
50-AC load;
60-DC load;
70-three-phase current input;
C1-electric capacity; C2-electric capacity;
D-diode;
L1-inductance; L2-inductance;
R3-resistance; R4-resistance; R5-resistance; R-electric power generation unloading resistance;
LED1-light-emitting diode; LED2-light-emitting diode; LED3-light-emitting diode;
MOS1-MOSFET manages; MOS2-MOSFET manages; F1-MOSFET pipe link; F2-MOSFET pipe link; F3-MOSFET pipe link;
S-switch.
Embodiment
As shown in Figure 2, a charging circuit for small-sized wind power generator, comprises three-phase current input 70, electric capacity one C1, electric capacity two C2, MOSFET pipe one MOS1, MOSFET pipe two MOS2, inductance one L1, inductance two L2, resistance three R3, resistance four R4, resistance five R5, electric power generation unloading resistance R, diode D, light-emitting diode one LED1, light-emitting diode two LED2, light-emitting diode three LED3, switch S, storage battery.
Described three-phase current input 70 is provided with rectifier diode.Described electric capacity one C1 is in parallel with three-phase current input 70.Described light-emitting diode one LED1 is connected in series with resistance three R3, and light-emitting diode one LED1 and resistance three R3 of described serial connection are in parallel with three-phase current input 70.Wherein, the value of described electric capacity one C1 is 100u farad, and the value of described resistance three R3 is 1k ohm.
Described MOSFET pipe two MOS2 and electric power generation unloading resistance R is connected in series, and MOSFET pipe two MOS2 of described serial connection and electric power generation unloading resistance R is in parallel with electric capacity one C1.Wherein, the value of described electric power generation unloading resistance R is 500k ohm.
Described MOSFET pipe one MOS1 and MOSFET pipe two MOS2 is in parallel, described inductance one L1 is connected in series with inductance two L2, described inductance one L1 and inductance two L2 and MOSFET pipe one MOS1 is connected in series, described inductance two L2 is connected with the positive pole of storage battery by switch S, described electric capacity two C2 is in parallel with storage battery, the positive pole of described electric capacity two C2 is connected between inductance one L1 and inductance two L2, described diode D is in parallel with electric capacity two C2, and the negative pole of described diode D is connected between MOSFET pipe one MOS1 and inductance one L1.Wherein, the value of described inductance one L1 is 10k ohm, and the value of described inductance two L2 is 10k ohm, and the value of described electric capacity two C2 is 100u farad.
Described light-emitting diode two LED2 is connected in series with resistance four R4, light-emitting diode two LED2 and resistance four R4 of described serial connection are in parallel with storage battery, described light-emitting diode three LED3 is connected in series with resistance five R5, and light-emitting diode three LED3 and resistance five R5 of described serial connection are in parallel with storage battery.Wherein, the value of described resistance four R4 is 1k ohm, and the value of described resistance five R5 is 1k ohm.
In real work, the three-phase that charge controller U, V, W connect exports rectifying part and adopts simple uncontrollable three phase rectifier, and switching tube is selected to drive simply, driving power is little, switching speed is fast and the electric power MOSFTE that operating frequency is high.Blower fan charging control section divides the course of work as follows:
Charge normal two metal-oxide-semiconductor alternate conduction and shutoff in situation to charge a battery, when extraneous wind speed is excessive, battery charging current may be excessive, at this moment CPU will adjust the ON time of the MOS1 on main charging circuit, thus adjustment charging current, prevent storage battery from shortening the life-span because of large current charge like this.The nonabsorbable electric energy of storage battery by MOS2 conducting on electric power generation unloading resistance R, thus will protect storage battery, i.e. stall protection.
Above content is only better embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (4)
1. the charging circuit of a small-sized wind power generator, comprise three-phase current input (70), electric capacity one (C1), electric capacity two (C2), MOSFET pipe one (MOS1), MOSFET pipe two (MOS2), inductance one (L1), inductance two (L2), electric power generation unloading resistance (R), diode (D), switch (S), storage battery, described three-phase current input (70) is provided with rectifier diode, it is characterized in that: described electric capacity one (C1) is in parallel with three-phase current input (70), described MOSFET pipe two (MOS2) and electric power generation unloading resistance (R) serial connection, MOSFET pipe two (MOS2) and the electric power generation unloading resistance (R) of described serial connection are in parallel with electric capacity one (C1), described MOSFET pipe one (MOS1) is in parallel with MOSFET pipe two (MOS2), described inductance one (L1) is connected in series with inductance two (L2), described inductance one (L1) and inductance two (L2) are connected in series with MOSFET pipe one (MOS1), described inductance two (L2) is connected with the positive pole of storage battery by switch (S), described electric capacity two (C2) is in parallel with storage battery, the positive pole of described electric capacity two (C2) is connected between inductance one (L1) and inductance two (L2), described diode (D) is in parallel with electric capacity two (C2), the negative pole of described diode (D) is connected between MOSFET pipe one (MOS1) and inductance one (L1).
2. the charging circuit of a kind of small-sized wind power generator as claimed in claim 1, it is characterized in that: also comprise light-emitting diode one (LED1), resistance three (R3), described light-emitting diode one (LED1) is connected in series with resistance three (R3), and light-emitting diode one (LED1) and the resistance three (R3) of described serial connection are in parallel with three-phase current input (70).
3. the charging circuit of a kind of small-sized wind power generator as claimed in claim 2, it is characterized in that: also comprise light-emitting diode two (LED2), light-emitting diode three (LED3), resistance four (R4), resistance five (R5), described light-emitting diode two (LED2) is connected in series with resistance four (R4), light-emitting diode two (LED2) and the resistance four (R4) of described serial connection are in parallel with storage battery, described light-emitting diode three (LED3) is connected in series with resistance five (R5), light-emitting diode three (LED3) and the resistance five (R5) of described serial connection are in parallel with storage battery.
4. the charging circuit of a kind of small-sized wind power generator as claimed in claim 3, it is characterized in that: the value of described inductance one (L1) is 10k ohm, the value of described inductance two (L2) is 10k ohm, the value of described resistance three (R3) is 1k ohm, the value of described resistance four (R4) is 1k ohm, the value of described resistance five (R5) is 1k ohm, the value of described electric power generation unloading resistance (R) is 500k ohm, the value of described electric capacity one (C1) is 100u farad, and the value of described electric capacity two (C2) is 100u farad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568003.0U CN204190478U (en) | 2014-09-29 | 2014-09-29 | A kind of charging circuit of small-sized wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568003.0U CN204190478U (en) | 2014-09-29 | 2014-09-29 | A kind of charging circuit of small-sized wind power generator |
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| Publication Number | Publication Date |
|---|---|
| CN204190478U true CN204190478U (en) | 2015-03-04 |
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| CN201420568003.0U Expired - Fee Related CN204190478U (en) | 2014-09-29 | 2014-09-29 | A kind of charging circuit of small-sized wind power generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242424A (en) * | 2014-09-29 | 2014-12-24 | 苏州克兰兹电子科技有限公司 | Charge circuit of small wind power generator |
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2014
- 2014-09-29 CN CN201420568003.0U patent/CN204190478U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242424A (en) * | 2014-09-29 | 2014-12-24 | 苏州克兰兹电子科技有限公司 | Charge circuit of small wind power generator |
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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 |
Granted publication date: 20150304 Termination date: 20150929 |
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| EXPY | Termination of patent right or utility model |