CN203504269U - Boost and brake integration wind power charging control device - Google Patents
Boost and brake integration wind power charging control device Download PDFInfo
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- CN203504269U CN203504269U CN201320643694.1U CN201320643694U CN203504269U CN 203504269 U CN203504269 U CN 203504269U CN 201320643694 U CN201320643694 U CN 201320643694U CN 203504269 U CN203504269 U CN 203504269U
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- 230000010354 integration Effects 0.000 title abstract 4
- 238000005070 sampling Methods 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 description 4
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- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- Control Of Eletrric Generators (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a boost and brake integration wind power charging control device. The device comprises a rectification filter circuit connected with an output of a wind driven generator and a control unit. The rectification filter circuit is connected with a storage battery through a boost and brake integration circuit. The control unit comprises a first sampling circuit, a second sampling circuit and a boost and brake driving circuit. A control terminal of the boost and brake driving circuit of the utility model controls a working mode of a power switch tube of the boost and brake integration circuit and conducts the power switch tube so as to protect the storage battery and the wind driven generator when brake is needed. The device possesses the following advantages that system reliability is increased; a power density is increased too; and system cost is reduced.
Description
Technical field
The utility model relates to a kind of wind energy battery charge controller, particularly a kind of wind energy battery charge controller of the brake integrative that boosts.
Background technology
In recent years, various circles of society increase day by day for the concern of the environmental problems such as global warming and carbon emission harm, and free of contamination new forms of energy manifest day by day for the importance of sustainable development, and wind power generation is one of cleaning new energy of giving priority to.Wind power generation is to utilize synchronous generator that wind energy is converted to electric energy and carries out Variable flow control, for accumulators or load.
In application, the unstable energy that wind power generation need to be produced is stored in storage battery by wind energy charging control circuit, in the situation that wind energy is larger, must introduces braking circuit with protection wind-driven generator and guarantee that storage battery does not overcharge damage.
The patent of invention of publication number CN 101702532B discloses a kind of wind-driven generator charger control with relief circuit, as shown in Figure 1, the output of described rectification circuit 1 is connected with storage battery 4 by air switch K1, relief circuit 2, BOOST booster circuit 3, need the extra relief circuit that increases, a power switch pipe, cost is higher, and needs larger area of dissipation, has reduced power density.
Utility model content
For the weak point of above-mentioned technology, the utility model provides a kind of wind energy battery charge controller of the brake integrative that boosts.
The utility model adopts following solution to realize: a kind of wind energy battery charge controller of the brake integrative that boosts, comprise the current rectifying and wave filtering circuit being connected with wind-driven generator output, it is characterized in that: also comprise a control unit, described current rectifying and wave filtering circuit is connected with storage battery by the brake integrative circuit that boosts; Described control unit comprises first and second sample circuit and the brake drive circuit that boosts; The input of described the first sample circuit is connected to the output of current rectifying and wave filtering circuit, and the input of described the second sample circuit is connected to storage battery, and the output of described first and second sample circuit is connected to respectively the brake drive circuit that boosts; The described drive end that boosts brake drive circuit is connected with the brake integrative circuit that boosts; Described control unit, while being no more than the charge in batteries voltage that sets or charge in batteries electric current lower than maximum constraints electric current for generator output commutating voltage, start the boost function of the brake integrative circuit that boosts, when the charging voltage setting over storage battery for generator output commutating voltage or charge in batteries electric current are greater than maximum constraints electric current, start the brake function of the brake integrative circuit that boosts.
In the utility model one embodiment, described in the brake integrative main circuit topological circuit that boosts adopt BOOST booster circuit, its input termination current rectifying and wave filtering circuit output, its output termination storage battery.
In the utility model one embodiment, described the first sample circuit is voltage sampling circuit, current sampling circuit or frequency sampling circuit.
In the utility model one embodiment, described the second sample circuit is voltage sampling circuit or current sampling circuit.
In the utility model one embodiment, described in the brake integrative circuit that boosts comprise an inductance L 1, diode D0, power switch pipe Q1 and capacitor C 1; One end of described inductance L 1 is connected to the output of described current rectifying and wave filtering circuit, and the other end of described inductance L 1 is connected to the anode of diode D0, the drain electrode of power switch pipe Q1; The source electrode of described power switch pipe Q1 is connected to the negative pole BAT-of storage battery, described in the control utmost point of described power switch pipe Q1 is connected to, boost brake drive circuit drive end, the negative electrode of described diode D0 is connected to the anodal BAT+ of storage battery, and the two ends of described capacitor C 1 are connected in parallel on the both positive and negative polarity of storage battery.
In the utility model one embodiment, described power switch pipe is a power switch pipe or is formed in parallel by a plurality of power switch pipes.
In the utility model one embodiment, described in boost brake drive circuit be MPPT control circuit.
The beneficial effects of the utility model are:
The utility model utilizes traditional BOOST booster circuit to change the brake integrative circuit that boosts into, and BOOST working method and brake are united two into one, and Jin You No. mono-drive circuit, controls clear simply, has improved reliability, the power density of system; Reduce independently brake and control circuit thereof, the resource of saving CPU, cost-saving.
Accompanying drawing explanation
Fig. 1 is prior art circuits schematic diagram.
Fig. 2 is theory diagram of the present utility model.
Embodiment
Below by specific embodiment, the utility model is described in further detail.
As shown in Figure 2, a kind of wind energy battery charge controller of the brake integrative that boosts, comprise the current rectifying and wave filtering circuit 21 being connected with wind-driven generator output, described current rectifying and wave filtering circuit 21 is connected with storage battery 24 by the brake integrative circuit 22 that boosts, and also comprises a control unit 23; Described control unit 23 comprises the first sample circuit 32, the second sample circuit 33, brake drive circuit 31 boosts; The input of described the first sample circuit 32 is connected to the output of current rectifying and wave filtering circuit 21, the input of described the second sample circuit 33 is connected to storage battery 24, and the output of described the first sample circuit 32, the second sample circuit 33 is connected to respectively the brake drive circuit 32 that boosts; The described drive end that boosts brake drive circuit 32 is connected to the control utmost point of the power switch pipe Q1 of the brake integrative circuit 22 that boosts; The described drive end that boosts brake drive circuit 31 is the control end of described control unit 23;
Described control unit 23, while being no more than charging voltage that storage battery 24 sets or storage battery 24 charging currents lower than maximum constraints electric current for voltage after generator output rectification filter, start the boost function of the brake integrative circuit 22 that boosts, when surpassing charging voltage that storage battery 24 sets or storage battery 24 charging currents and be greater than maximum constraints electric current for controlling generator output commutating voltage, start the brake function of the brake integrative circuit 22 that boosts.
The main topological circuit of the described brake integrative circuit 22 that boosts adopts BOOST booster circuit, its input termination current rectifying and wave filtering circuit 21 outputs, its output termination storage battery 24, comprise an inductance L 1, diode D0, power switch pipe Q1, capacitor C 1, one end of described inductance L 1 is connected to the output of described current rectifying and wave filtering circuit 21, the other end of described inductance L 1 is connected to the anode of diode D0, the drain electrode of power switch pipe Q1, the source electrode of described power switch pipe Q1 is connected to the negative pole BAT-of storage battery 24, the control utmost point of described power switch pipe Q1 be connected to control unit 23 boost brake drive circuit 31 drive end, the negative electrode of described diode D0 is connected to the anodal BAT+ of storage battery 24, the two ends of described capacitor C 1 are connected in parallel on the both positive and negative polarity of storage battery 24.
Described the first sample circuit 32 is voltage sampling circuit, current sampling circuit or frequency sampling circuit, and the present embodiment is preferably voltage sampling circuit;
Described the second sample circuit 33 is voltage sampling circuit or current sampling circuit, and the present embodiment is preferably voltage sampling circuit;
Adopt respectively the first sample circuit 32(voltage sampling circuit), the second sample circuit 33(voltage sampling circuit) DC bus-bar voltage of current rectifying and wave filtering circuit 21 and storage battery 24 voltages are carried out to real-time sampling, according to the mode of operation of the Determines power switch pipe Q1 of storage battery 24 voltages, work respectively with as follows:
(1) boost charge pattern:
When generator output commutating voltage is no more than the charging voltage that storage battery 24 sets (also can for charge in batteries electric current is lower than maximum constraints electric current), be that storage battery 24 is when charging, inductance L 1, power switch pipe Q1, diode D0 form the brake integrative circuit 22 that boosts and are operated in the BOOST charge mode that boosts, and the brake integrative circuit 22 power switch pipe Q1 that now boost are operated in HF switch state.
(2) blower fan brake mode:
When generator output commutating voltage surpasses charging voltage that storage battery 24 sets or (also can be greater than maximum constraints electric current for charge in batteries electric current), in order to prevent that storage battery 24 overvoltage from just need to brake to blower fan, otherwise will damage storage battery 24.Because the wind-driven generator winding of prime has internal resistance, and energy is little, brake directly adopts the mode of short circuit, and power switch pipe Q1 is driven as high level, be power switch pipe Q1 (this refers to reference to the non-the earth in ground) short circuit directly over the ground, thereby the time is long by blower fan pressure brake.According to law of magnetic induction, current－carrying conductor is subject to the effect of power in magnetic field, the big or small F=BIL of power, namely I is larger, and this active force is also larger, when electric current is very large, during power relative equilibrium that the motive power that wind energy provides and magnetic induction produce, blower fan brake, or turn very slowly.The maximum of this short circuit current is by the power output of synchronous generator, relevant to the size of wind and the internal resistance of synchronous generator, normally this synchronous generator and 3 times of left and right of determining output current.
Above-described embodiment is only used for further illustrating the wind energy battery charge controller of a kind of brake integrative that boosts of the present utility model; but the utility model is not limited to embodiment; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all fall in the protection range of technical solutions of the utility model.
Claims (7)
1. the wind energy battery charge controller of the brake integrative that boosts, comprise the current rectifying and wave filtering circuit being connected with wind-driven generator output, it is characterized in that: also comprise a control unit, described current rectifying and wave filtering circuit is connected with storage battery by the brake integrative circuit that boosts;
Described control unit comprises first and second sample circuit and the brake drive circuit that boosts; The input of described the first sample circuit is connected to the output of current rectifying and wave filtering circuit, and the input of described the second sample circuit is connected to storage battery, and the output of described first and second sample circuit is connected to respectively the brake drive circuit that boosts; The described drive end that boosts brake drive circuit is connected with the brake integrative circuit that boosts; Described control unit, while being no more than the charge in batteries voltage that sets or charge in batteries electric current lower than maximum constraints electric current for generator output commutating voltage, start the boost function of the brake integrative circuit that boosts, when the charging voltage setting over storage battery for generator output commutating voltage or charge in batteries electric current are greater than maximum constraints electric current, start the brake function of the brake integrative circuit that boosts.
2. the wind energy battery charge controller of the brake integrative that boosts according to claim 1, is characterized in that: described in the brake integrative main circuit topological circuit that boosts adopt BOOST booster circuit, its input termination current rectifying and wave filtering circuit output, its output termination storage battery.
3. the wind energy battery charge controller of the brake integrative that boosts according to claim 1, is characterized in that: described the first sample circuit is voltage sampling circuit, current sampling circuit or frequency sampling circuit.
4. the wind energy battery charge controller of the brake integrative that boosts according to claim 1, is characterized in that: described the second sample circuit is voltage sampling circuit or current sampling circuit.
5. the wind energy battery charge controller of the brake integrative that boosts according to claim 1, is characterized in that: described in the brake integrative circuit that boosts comprise an inductance, diode, power switch pipe and electric capacity; One end of described inductance is connected to the output of described current rectifying and wave filtering circuit, and the other end of described inductance is connected to the drain electrode of the anode of diode, power switch pipe; The source electrode of described power switch pipe is connected to the negative pole of storage battery, the drive end of the brake drive circuit that boosts described in the control utmost point of described power switch pipe is connected to, and the negative electrode of described diode is connected to the positive pole of storage battery, and described electric capacity two ends are connected in parallel on the both positive and negative polarity of storage battery.
6. the wind energy battery charge controller of the brake integrative that boosts according to claim 5, is characterized in that: described power switch pipe is a power switch pipe or is formed in parallel by a plurality of power switch pipes.
7. the wind energy battery charge controller of a kind of brake integrative that boosts according to claim 1, is characterized in that: described in the brake drive circuit that boosts be MPPT control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320643694.1U CN203504269U (en) | 2013-10-18 | 2013-10-18 | Boost and brake integration wind power charging control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320643694.1U CN203504269U (en) | 2013-10-18 | 2013-10-18 | Boost and brake integration wind power charging control device |
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| Publication Number | Publication Date |
|---|---|
| CN203504269U true CN203504269U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320643694.1U Expired - Lifetime CN203504269U (en) | 2013-10-18 | 2013-10-18 | Boost and brake integration wind power charging control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767264A (en) * | 2015-04-16 | 2015-07-08 | 南通理工学院 | Voltage boost power supply device for small-and-medium-size wind power generator |
| CN112615417A (en) * | 2020-12-18 | 2021-04-06 | 合肥赛光电源科技有限公司 | Maximum power output device and output method of wind driven generator at low wind speed |
-
2013
- 2013-10-18 CN CN201320643694.1U patent/CN203504269U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767264A (en) * | 2015-04-16 | 2015-07-08 | 南通理工学院 | Voltage boost power supply device for small-and-medium-size wind power generator |
| CN112615417A (en) * | 2020-12-18 | 2021-04-06 | 合肥赛光电源科技有限公司 | Maximum power output device and output method of wind driven generator at low wind speed |
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Granted publication date: 20140326 |