CN103208851A - Vertical-axis wind power converter device - Google Patents
Vertical-axis wind power converter device Download PDFInfo
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- CN103208851A CN103208851A CN2013101326583A CN201310132658A CN103208851A CN 103208851 A CN103208851 A CN 103208851A CN 2013101326583 A CN2013101326583 A CN 2013101326583A CN 201310132658 A CN201310132658 A CN 201310132658A CN 103208851 A CN103208851 A CN 103208851A
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- wind power
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- power generation
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- axis wind
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
A vertical-axis wind power generation converter device belongs to the field of wind power generation. The vertical-axis wind power generation converter device comprises a vertical-axis wind power generator, an unloading resistance box, a three-phase relay, an uncontrolled rectifier bridge, an energy-storage capacitor bank, a precharging circuit of the energy-storage capacitor bank, a 1# current sensor, a 1# voltage sensor, a power device VT1, a fast recovery diode D1, a high-frequency inductor L, a power device VT2, a diode D2, a filter capacitor C2, a power device VT3, an energy-consumption resistor R2, a 2# current sensor, a 2# voltage sensor and a storage battery. By switching different working modes in real time under different wind speed conditions: a step-up working mode in a low-wind-speed condition and a step-down working mode in a high-wind-speed condition, the output power of the wind power generator can be utilized to the largest extent, and wind power can be fully converted into direct current to charge the storage battery, so that wind power generation and utilization of new energy can be achieved. The vertical-axis wind power generation converter device can be applied to freestanding vertical-axis wind power generator sets of middle and small sizes.
Description
Technical field
The present invention relates to a kind of generating power supply DC-AC conversion device, especially a kind of convertor assembly of vertical axis wind power generation.
Background technology
Wind energy is the big event in the new energy development as a kind of regenerative resource of cleaning.The overall wind energy resources of China is abundanter, but skewness, and a lot of mountain areas, the long-term wind speed in agro-farming district and pastoral area are less and unstable, do not satisfy wind power plant addressing requirement, therefore need widely popularize middle-size and small-size wind turbine generator.The miniature wind power generation system of independent operating is for starting the less demanding of wind speed, and the general above wind speed of 3m/s just can normally move generating, and the energy storage of cooperation lead acid accumulator and releasing energy can guarantee the normal electricity consumption of middle low power equipment.Than horizontal axis wind-driven generator, the gear box of vertical axis aerogenerator is in the complete machine bottom, center of gravity is low, and impeller directly is connected with the rotor of generator by rotating shaft, does not need regulating system down with the wind, can accept the wind of any direction, improved utilization ratio of wind energy, and simple in structure, convenient for installation and maintenance, cost is low, has boundless application prospect.
Because the unsteadiness of wind speed is not if directly the alternating current that generator is sent when wind speed hangs down, reaches minimum charging voltage requirement through not controlling rectifier bridge to charge in batteries; When wind speed was high, generator outlet voltage was clamped on the accumulator voltage, caused output of a generator little, had greatly wasted wind energy.Therefore studying the convertor assembly that takes full advantage of wind energy under a kind of suitable different wind speed has important practical sense.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, solve middle-size and small-size vertical axis aerogenerator and be difficult under different wind friction velocities, take full advantage of wind energy, realize the problem of maximum power output, a kind of vertical axis wind power generation convertor assembly is provided.It is a kind of all can the maximum using generator under low wind speed and higher wind velocity condition exert oneself, realize the independent power supply device of AC-DC conversion.
The technical solution adopted in the present invention is:
A kind of vertical axis wind power generation convertor assembly of the present invention, it comprises main circuit part and control circuit part.Wherein main circuit comprises: vertical axis aerogenerator, off-load resistance box, three phase relaies, do not control rectifier bridge, energy storage capacitor group and pre-charge circuit thereof, 1# current sensor, 1# voltage sensor, power device VT
1, fast recovery diode D
1, high-frequency inductor L, power device VT
2, diode D
2, filter capacitor C
2, power device VT
3, the power consumption resistance R
2, 2# current sensor, 2# voltage sensor, batteries.
Described a kind of vertical axis wind power generation convertor assembly, in its main circuit the vertical axis aerogenerator leading-out terminal with do not control rectifier bridge and link to each other, after AC rectification become direct current the energy storage capacitor group is charged, the 1# voltage sensor is measured capacitor group terminal voltage, 1# current sensor measurement bus current, power device VT
1With fast recovery diode D
1, high-frequency inductor L forms buck circuit, busbar voltage is carried out copped wave handles, simultaneously high-frequency inductor L and power device VT
2, diode D
2, filter capacitor C
2Form boost chopper batteries is charged, 2# current sensor and 2# voltage sensor are measured battery charging electric current and charging voltage respectively, power device VT
3With the power consumption resistance R
2, form the power consumption protective circuit and prevent accumulator super-charge, relay K when wind speed is excessive
1Generator windings is linked to each other with the off-load resistance box, carry out off-load brake protection.
Described a kind of vertical axis wind power generation convertor assembly, its control circuit comprises: anemobiagraph, controller, PWM1 isolation drive, PWM2 isolation drive, charge protection signal drive, the off-load guard signal drives.
Described a kind of vertical axis wind power generation convertor assembly, its control circuit middle controller receives the output signal of anemobiagraph, 1# current sensor, 1# voltage sensor, 2# current sensor, 2# voltage sensor, the output two pulse signals is respectively through PWM1 isolation drive, PWM2 isolation drive, to power device VT behind software control algorithm
1With power device VT
2Control; After reaching the charge protection condition, output switching signal drives through the charge protection signal, control power device VT
3, resistance R will consume energy
2Put into operation; Wind speed is excessive reach off-load brake condition after, output switching signal drives through the off-load guard signal and is connected with relay, and the off-load resistance box is put into operation.
Described voltage sensor is the Hall-type voltage sensor, and current sensor is the Hall-type current sensor.
Described power device VT1, power device VT2, power device VT3 are IGBT, and adopt RC type buffer circuit.
Described batteries is that 4 12V valve controlled sealed lead-acid accumulators are composed in series the 48V DC power supply.
Described controller is the PIC single-chip microcomputer.
Described anemobiagraph is the HL-FS2 air velocity transducer.
Advantage of the present invention is: when wind speed hanged down, convertor assembly worked the copped wave effect of boosting, and when wind speed was high, convertor assembly played step-down copped wave effect, and the alternating current that generator can both be sent under the different wind speed is transformed into direct current to battery charging.According to rated voltage and the actual wind speed situation of connecing batteries, dynamically switch the step-up/down mode of operation.Contain the maximal power tracing control algolithm in the control software, realize the maximum power output of generator under the high wind speed.Whole device is realized the maximum utilization of wind energy when the above wind speed of 3m/s.
Description of drawings
Fig. 1 is the main circuit structure figure of apparatus of the present invention.
Fig. 2 is the control circuit structure chart of apparatus of the present invention.
Fig. 3 is maximum power control algolithm flow chart among the present invention.
Fig. 4 is apparatus of the present invention VT under the mode of operation that boosts when the 3m/s wind speed
2Terminal voltage and current waveform.
Fig. 5 is that apparatus of the present invention are to the voltage and current waveform of charge in batteries.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is to be prerequisite with the technical solution of the present invention, provided concrete execution mode and detailed operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment one: in the present embodiment, under the low wind conditions of 3m/s, apparatus of the present invention are converted to electric energy with wind energy and are stored in the batteries, in conjunction with Fig. 1 and Fig. 2 present embodiment are described to face down.During wind speed 3m/s, the line voltage of wind-driven generator winding is 16.5V, and busbar voltage is 38.6V after not controlling the rectifier bridge rectification, the terminal voltage of batteries is 48V, can't be directly to charge in batteries, this moment, convertor assembly was operated in boost mode, and busbar voltage is raise the back to charge in batteries.Power device VT
1Permanent conducting, power device VT
3The permanent shutoff by the data that 1# voltage sensor and 2# voltage sensor senses obtain, adjusted power device VT in real time in the software
2The conducting duty ratio, make the batteries both end voltage maintain between 52～60V.This moment device in, high-frequency inductor L, power device VT
2, diode D
2With filter capacitor C
2Form boost chopper, the direct voltage after the rectification is elevated in the preset range, realize the charge in batteries energy storage.Power device VT under the mode of operation for this reason shown in Figure 4
2Both end voltage and electric current.
Embodiment two: in the present embodiment, when wind speed was higher than 5m/s, apparatus of the present invention were converted to electric energy with wind energy and are stored in the batteries, in conjunction with Fig. 1 and Fig. 2 present embodiment were described to face down.Along with the increase of wind speed, the line voltage of generator windings increases, and after wind speed reached 5m/s, after not controlling rectifier bridge, busbar voltage substantially exceeded the healthy charge voltage range (52～60V) of batteries.This moment, convertor assembly was operated in decompression mode, and busbar voltage is reduced to behind the healthy charge voltage range charge in batteries.Power device VT
2Permanent shutoff, power device VT
3Turn-off, by the data that 1# voltage sensor and 2# voltage sensor senses obtain, adjust power device VT in the software in real time
1The conducting duty ratio, make the batteries both end voltage maintain between 52～60V.This moment device in, power device VT
1, fast recovery diode D
1, high-frequency inductor L, diode D
2, filter capacitor C
2Form buck circuit, the direct voltage after the rectification is reduced in the preset range, realize the charge in batteries energy storage.By 2# current sensor and 2# voltage sensor senses charge in batteries voltage and charging current, when charging was finished or reach charging current protection value, the controller output switching signal was with power device VT
3Open-minded, drop into the power consumption resistance R
2, storage battery protection is prevented from overcharging.Terminal voltage and the charging current of monolithic storage battery under the mode of operation for this reason shown in Figure 5.
Embodiment three: in the present embodiment, under higher wind velocity condition, for maximum is utilized the power output of generator, adopt maximal power tracing algorithm, optimized power device VT in the software
1The conducting duty ratio, make storage battery in healthy charge voltage range, reach the charging current maximum.Below in conjunction with Fig. 3 present embodiment is described.2# voltage sensor, 2# current sensor are measured charge in batteries voltage and charging current respectively, judge that then charging voltage and charging current have or not above the maximum limit definite value, as long as the two has one to surpass limit value, start the charge protection function, power device VT
3Open-minded, drop into the power consumption resistance R
2If do not have, then by the 1# current sensor, the 1# voltage sensor detects busbar voltage and electric current respectively, calculates motor power output this moment.Result of calculation and a last sampling time obtained a result compare, according to different situations to power device VT
1The conducting duty ratio carry out continuing to optimize of fixed step size disturbance.In this process, surpass default limit value if detect generator output voltage, illustrate that wind speed is too high, be protection convertor assembly and generator, carry out off-load brake protection, controller output off-load guard signal relay K behind drive circuit
1Action drops into the off-load resistance box, and whole device is carried out the off-load protection.
Claims (9)
1. vertical axis wind power generation convertor assembly, it comprises main circuit and control circuit, and wherein main circuit comprises: vertical axis aerogenerator (1), off-load resistance box (2), three phase relaies (3), do not control rectifier bridge (4), energy storage capacitor group and pre-charge circuit (5) thereof, 1# current sensor (6), 1# voltage sensor (7), power device VT
1(8), fast recovery diode D
1(9), power device VT high-frequency inductor L(10),
2(11), diode D
2(12), filter capacitor C
2(13), power device VT
3(14), power consumption resistance R
2(15), 2# current sensor (16), 2# voltage sensor (17), batteries (18).
2. vertical axis wind power generation convertor assembly; it comprises main circuit and control circuit, and wherein control circuit comprises: anemobiagraph (19), controller (20), PWM1 isolation drive (21), PWM2 isolation drive (22), charge protection signal drive (23), the off-load guard signal drives (24).
3. a kind of vertical axis wind power generation convertor assembly according to claim 1, it is characterized in that: described vertical axis aerogenerator (1) leading-out terminal with do not control rectifier bridge (4) and link to each other, after AC rectification become direct current energy storage capacitor group (5) is charged, 1# voltage sensor (7) is measured capacitor group terminal voltage, 1# current sensor (6) is measured bus current, power device VT
1(8) with fast recovery diode D
1(9), high-frequency inductor L(10) form chopper circuit, busbar voltage is carried out copped wave handles, simultaneously high-frequency inductor L(10) and power device VT
2(11), diode D
2(12), filter capacitor C
2(13) form boost chopper batteries (18) is charged, 2# current sensor (16) and 2# voltage sensor (17) are measured batteries (18) charging current and charging voltage, power device VT respectively
3(14) and the power consumption resistance R
2(15) form the power consumption protective circuit and prevent accumulator super-charge, relay K when wind speed is excessive
1(3) generator windings is linked to each other with off-load resistance box (2), carry out off-load brake protection.
4. according to claim 1 and 2 described a kind of vertical axis wind power generation convertor assemblys, it is characterized in that: controller (20) receives the output signal of anemobiagraph (19), 1# current sensor (6), 1# voltage sensor (7), 2# current sensor (16), 2# voltage sensor (17), behind software control algorithm the output two pulse signals respectively through PWM1 isolation drive (21), PWM2 isolation drive (22) to power device VT
1(8) and power device VT
2(11) control; After reaching the charge protection condition, output switching signal drives (23) control power device VT through the charge protection signal
3(14), the resistance R that will consume energy
2(15) put into operation; Wind speed is excessive reach off-load brake condition after, output switching signal drives (24) through the off-load guard signal and is connected with relay (3), and off-load resistance box (2) is put into operation.
5. a kind of vertical axis wind power generation convertor assembly according to claim 1, it is characterized in that: described voltage sensor is the Hall-type voltage sensor, current sensor is the Hall-type current sensor.
6. according to the described a kind of vertical axis wind power generation convertor assembly of claim 1, it is characterized in that: described power device VT
1(8), power device VT
2(11), power device VT
3(14) be IGBT, adopt RC type buffer circuit.
7. a kind of vertical axis wind power generation convertor assembly according to claim 1, it is characterized in that: described batteries is that 4 12V valve controlled sealed lead-acid accumulators are composed in series the 48V DC power supply.
8. a kind of vertical axis wind power generation convertor assembly according to claim 2, it is characterized in that: described controller is the PIC single-chip microcomputer.
9. a kind of vertical axis wind power generation convertor assembly according to claim 2, it is characterized in that: described anemobiagraph is the HL-FS2 air velocity transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101326583A CN103208851A (en) | 2013-04-16 | 2013-04-16 | Vertical-axis wind power converter device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101326583A CN103208851A (en) | 2013-04-16 | 2013-04-16 | Vertical-axis wind power converter device |
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| CN103208851A true CN103208851A (en) | 2013-07-17 |
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| CN2013101326583A Pending CN103208851A (en) | 2013-04-16 | 2013-04-16 | Vertical-axis wind power converter device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319776A (en) * | 2014-09-29 | 2015-01-28 | 中南民族大学 | Unloader of aerogenerator, and control method thereof |
| CN106711925A (en) * | 2016-12-27 | 2017-05-24 | 新疆大学 | Wind farm single circuit outgoing line self-adaptive three-phase recloser and method thereof |
| CN107968604A (en) * | 2016-10-20 | 2018-04-27 | 北京精密机电控制设备研究所 | A kind of turbogenerator stablizes the control system and control method of output and operation |
| CN108933500A (en) * | 2017-05-23 | 2018-12-04 | 东洋合成股份有限公司 | Can the high electric energy of the slow-speed of revolution wind power generation plant |
| CN109075581A (en) * | 2016-05-12 | 2018-12-21 | 罗伯特·博世有限公司 | Battery disconnection circuit and method for controlling battery disconnection circuit |
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| CN201786566U (en) * | 2010-09-03 | 2011-04-06 | 恒天重工股份有限公司 | Off-grid perpendicular shaft wind-driven generator control system with continuous power supply |
| CN102142711A (en) * | 2011-03-25 | 2011-08-03 | 姚志恩 | Control system of wind driven generator |
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| JP2002062942A (en) * | 2000-08-22 | 2002-02-28 | Sanyo Electric Industries Co Ltd | Control device for independent power source by wind power generator |
| CN201369576Y (en) * | 2008-12-04 | 2009-12-23 | 新疆新能源股份有限公司 | Wind power/photovoltaic dual-purpose charge controller |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319776A (en) * | 2014-09-29 | 2015-01-28 | 中南民族大学 | Unloader of aerogenerator, and control method thereof |
| CN104319776B (en) * | 2014-09-29 | 2016-05-11 | 中南民族大学 | A kind of unloader of wind-driven generator and control method thereof |
| CN109075581A (en) * | 2016-05-12 | 2018-12-21 | 罗伯特·博世有限公司 | Battery disconnection circuit and method for controlling battery disconnection circuit |
| CN107968604A (en) * | 2016-10-20 | 2018-04-27 | 北京精密机电控制设备研究所 | A kind of turbogenerator stablizes the control system and control method of output and operation |
| CN106711925A (en) * | 2016-12-27 | 2017-05-24 | 新疆大学 | Wind farm single circuit outgoing line self-adaptive three-phase recloser and method thereof |
| CN108933500A (en) * | 2017-05-23 | 2018-12-04 | 东洋合成股份有限公司 | Can the high electric energy of the slow-speed of revolution wind power generation plant |
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Application publication date: 20130717 |