CN101063440A - Solar,wind energy and commercial power combined power supply without transformer device - Google Patents
Solar,wind energy and commercial power combined power supply without transformer device Download PDFInfo
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- CN101063440A CN101063440A CN 200610026168 CN200610026168A CN101063440A CN 101063440 A CN101063440 A CN 101063440A CN 200610026168 CN200610026168 CN 200610026168 CN 200610026168 A CN200610026168 A CN 200610026168A CN 101063440 A CN101063440 A CN 101063440A
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Abstract
The invention discloses a solar, wind-energy and commercial power combined power without any transformer, comprising a solar electricity generating device, a wind-power generator group and a commercial power supply device, characterized in that the invention also comprises a combination generating circuit, a battery, an adjusting circuit and an alternating current output circuit, wherein output ends of the solar electricity generating device and the wind-power generator group are connected with the input end of the combination generating circuit, and the output end of the adjusting circuit is connected with the alternating current output circuit, while the invention also comprises a switch device, and the commercial power supply device is connected with the alternating current output circuit via the switch device. The combined power can organically combine the solar energy and the electrical energy converted from the wind energy and converts the energy to a civil alternating current power which can convert with the commercial power, wherein the reverse process needs no transformer thereby reducing the cost and increasing the weight and volume.
Description
Technical field
The invention belongs to solar wind-energy power-generation inversion field, specifically one can not need transformer, and can finally obtain the stably solar energy that need not transformer, wind energy, the commercial power combined power supply of civilian ac power supply simultaneously with solar energy and wind energy power and three kinds of organically combinations of power supply of civilian civil power.
Background technique
Utilizing the green energy resource generating has not been a slogan.Along with the price of semiconductor devices in recent years reduces significantly, wind energy power and solar electrical energy generation successively begin to popularize.Yet a lot of in the market so-called wind energy inverters, solar inverter or the like generally have following three shortcomings: 1, need a very heavy huge transformer; 2, output is not pure sine wave; 3, I/O mode is very single, can not use at the same time and several energy and and civil power between switching.
Summary of the invention
The object of the present invention is to provide a kind of solar energy, wind energy, commercial power combined power supply that need not transformer, the electric energy that it can be simultaneously changed into solar energy and wind energy organically combines, be transformed into stable civilian ac power supply, and can and civil power between switch.Wherein inversion process does not need transformer, therefore, greatly reduces cost, has alleviated weight, has dwindled volume.
The technological scheme that the present invention takes is: need not solar energy, wind energy, the commercial power combined power supply of transformer, comprise device of solar generating, wind energy power unit and mains power supply; Be characterized in, comprise that also a cogeneration circuit, a storage battery, a regulating circuit and exchange output circuit; The output terminal of described device of solar generating, wind energy power unit is connected with the input end of cogeneration circuit; The output terminal of cogeneration circuit is connected with storage battery; The output terminal of storage battery is connected with the input end of regulating circuit; The output terminal of regulating circuit is connected with the interchange output circuit; Also comprise a COMM communication, described mains power supply is connected with the interchange output circuit by COMM communication.
Above-mentioned solar energy, wind energy, the commercial power combined power supply that need not transformer, wherein, described regulating circuit comprises inverter circuit and sampling and control circuit; The input end of described inverter circuit is connected with the output terminal of storage battery and sampling and control circuit respectively, and its output terminal is connected with the input end that exchanges output circuit; The input end of described sampling and control circuit is connected with the output terminal that exchanges output circuit.
Above-mentioned solar energy, wind energy, the commercial power combined power supply that need not transformer, wherein, described inverter circuit comprises DC boosting unit, bridge type inverse unit and the filter unit that is linked in sequence; Wherein: described DC boosting unit is used for the low voltage lifting of storage battery output is transported to the bridge type inverse unit for high voltage, the bridge type inverse unit is used for that this VDC is transformed into alternating voltage and is transported to filter unit, and the output terminal of filter unit is connected with the input end that exchanges output circuit.
Above-mentioned solar energy, wind energy, the commercial power combined power supply that need not transformer, wherein, described DC boosting unit mainly is made of a field effect transistor and auxiliary element thereof.
Above-mentioned solar energy, wind energy, the commercial power combined power supply that need not transformer, wherein, described bridge type inverse unit is mainly formed bridge circuit by four field effect transistors and is constituted.
Above-mentioned solar energy, wind energy, the commercial power combined power supply that need not transformer, wherein, described filter unit mainly is made of electric capacity and inductance.
Above-mentioned solar energy, wind energy, the commercial power combined power supply that need not transformer, wherein, described sampling and control circuit comprise voltage sample unit, current sampling unit, driver element and wave function unit boost; Described voltage sample unit is used to gather the voltage signal that exchanges output circuit output and is transported to the driver element that boosts, the working state of driver element according to this SC sigmal control inverter circuit of boosting; Current sampling unit is used to gather the current signal that exchanges output circuit output and is transported to the wave function unit, and the wave function unit is according to the work wave of this SC sigmal control inverter circuit; The output terminal of voltage sample unit is connected with the input end of the driver element that boosts, and the output terminal of the driver element that boosts is connected with the input end of the DC boosting unit of inverter circuit; The output terminal of current sampling unit is connected with the input end of wave function unit, and the output terminal of wave function unit is connected with the input end of the bridge type inverse unit of inverter circuit; The output terminal that exchanges output circuit is connected with the input end of voltage sample unit and current sampling unit respectively.
Above-mentioned solar energy, wind energy, the commercial power combined power supply that need not transformer, wherein, described sampling and control circuit are made of a single-chip microcomputer.
Above-mentioned solar energy, wind energy, the commercial power combined power supply that need not transformer, wherein, described COMM communication is made of a relay, be connected the live wire end that exchanges output circuit, under the general state, the live wire of bridge type inverse unit output is connected on the normally-closed contact of relay, and the live wire of civil power input is connected on the normally opened contact of relay; When accumulator electric-quantity is not enough, the actuating of relay, the live wire of bridge type inverse unit output is connected on the normally opened contact of relay, and the live wire of civil power input is connected on the normally-closed contact of relay.
The above technological scheme because the present invention has sampled, the technique effect of its generation is tangible:
1, solar energy and wind energy combined power generation:
The present invention both can import the solar cell electricity, can import the wind-driven generator electricity again, and can carry out the input of many typhoons energy generators simultaneously.In most cases, solar electrical energy generation and wind energy power are a kind of complementations, make that therefore the efficient of generating is higher.
2, the inversion part does not need transformer, exports stable pure sine wave:
Inverse method of the present invention does not need transformer.By the boosting of a booster switcher power supply, become high voltage direct current at the front end of input.And then, obtain exchanging output by bridge type inverse.The driving of bridge type inverse is finished by a variable duration impulse system, can obtain a point-device pure sine wave output.
3, can and civil power between switch:
The invention provides the pattern of switching between two kinds and the civil power.A kind of is the wind and solar energy mode of priority.Promptly at ordinary times always with solar energy and wind energy electricity as input.After the deposit of wind and solar energy electricity uses up fully, automatically switch to the civil power input.Another kind is the civil power mode of priority, promptly at ordinary times with civil power as input, when the civil power accident power-off, automatically switch to solar wind-energy generating input.Two kinds of patterns can satisfy the different needs under the different situations.
Description of drawings
Concrete feature of the present invention and performance are further described by following embodiment and accompanying drawing thereof.
Fig. 1 is the electrical block diagram of the present invention's solar energy of need not transformer, wind energy, commercial power combined power supply,
Fig. 2 is the concrete electrical block diagram of the regulating circuit among Fig. 1.
Fig. 3 is the circuit theory diagrams of the present invention's solar energy of need not transformer, wind energy, commercial power combined power supply.
Fig. 4 is the schematic representation of the interchange output circuit of the present invention's solar energy of need not transformer, wind energy, commercial power combined power supply, and wherein, Fig. 4 a is the schematic diagram of corresponding wind energy and the preferential powering mode of solar energy; Fig. 4 b is the schematic diagram that correspondence switches to the civil power input.
Embodiment
See also Fig. 1, the present invention need not solar energy, wind energy, the commercial power combined power supply of transformer, comprises device of solar generating 1, wind energy power unit 2 and mains power supply 3; Comprise that also a cogeneration circuit 4, a storage battery 5, a regulating circuit 6, exchange an output circuit 7 and a COMM communication 8.The output terminal of device of solar generating, wind energy power unit is connected with the input end of cogeneration circuit; The output terminal of cogeneration circuit is connected with storage battery; The output terminal of storage battery is connected with the input end of regulating circuit; The output terminal of regulating circuit is connected with the interchange output circuit.Also comprise a COMM communication 8, described mains power supply is connected with the interchange output circuit by COMM communication.Solar cell and wind-driven generator all are input in the cogeneration circuit, and the processing by the cogeneration circuit charges a battery.The electricity of storage battery output is an Ac by the inverter circuit inversion, then by exchanging output circuit output.Described mains power supply is connected with the interchange output circuit by COMM communication.
See also Fig. 2.The present invention need not in the solar energy, wind energy, commercial power combined power supply of transformer:
Described regulating circuit 6 comprises inverter circuit 61 and sampling and control circuit 62; Inverter circuit 61 comprises DC boosting unit 611, bridge type inverse unit 612 and the filter unit 613 that is linked in sequence, and wherein: the input end of DC boosting unit is connected with the output terminal of storage battery; This DC boosting unit 611 is used for the low voltage lifting of storage battery output is transported to bridge type inverse unit 612 for high voltage; Bridge type inverse unit 612 is used for that this VDC is transformed into alternating voltage and is transported to filter unit 613; The output terminal of filter unit is connected with the input end that exchanges output circuit.
Described sampling and control circuit 62 comprise voltage sample unit 621, current sampling unit 622, driver element 623 and wave function unit 624 boost, wherein: voltage sample unit 621 is used to gather the voltage signal that exchanges output and is transported to the driver element 623 that boosts, the working state of driver element 623 according to this SC sigmal control DC boosting unit 611 of boosting; Current sampling unit 622 is used to gather the current signal that exchanges output and is transported to wave function unit 624, and wave function unit 624 is according to the work wave of this SC sigmal control bridge type inverse unit 612.The output terminal of voltage sample unit is connected with the input end of the driver element that boosts, and the output terminal of the driver element that boosts is connected with the input end of the DC boosting unit of inverter circuit; The output terminal of current sampling unit is connected with the input end of wave function unit, and the output terminal of wave function unit is connected with the input end of the bridge type inverse unit of inverter circuit; The output terminal that exchanges output circuit is connected with the input end of voltage sample unit and current sampling unit respectively.Parameters such as voltage, electric current in voltage sample unit 621 in this sampling and the control circuit and circuit sampling unit 622 collecting devices, give boost driver element 623 and wave function unit and handle, and control the working condition of inverter circuit and output circuit part by boost driver element 623 and wave function unit.
See also Fig. 3, this is the present invention's solar energy of need not transformer, wind energy, a kind of embodiment's of commercial power combined power supply circuit theory diagrams.The present invention need not solar energy, wind energy, the commercial power combined power supply of transformer, comprises device of solar generating 1, wind energy power unit 2 and mains power supply 3; Comprise that also a cogeneration circuit 4, a storage battery 5, a regulating circuit 6 and exchange output circuit 7 and COMM communication 8.
Described cogeneration circuit 4 comprises 12 commutation diode D1～D12 that are connected with blower fan and the Schottky diode D13 that is connected with solar cell.Solar cell is connected in parallel on the two ends of storage battery by a Schottky diode.The three-phase output of each wind-driven generator is by being attempted by the two ends of storage battery together after the three-phase bridge rectifier circuit rectification.The diode that bridge rectifier uses is general silicon rectifier diode, as long as select for use the model of enough electric currents just passable.And connect on the solar cell, must be the Schottky diode of low forward voltage.Such joining method can autobalance between each wind-driven generator, can not cause the too high and damage that causes of generating voltage.
Bridge type inverse unit 612 mainly connects into bridge architecture by field effect transistor Q1, Q2, Q3, Q4 and constitutes.
The negative pole of diode D is connected with an end of capacitor C 2 and the drain electrode of field effect transistor Q1 and Q3.The source electrode of field effect transistor Q1 is connected with the drain electrode of field effect transistor Q2 and an end of inductance L 2, and the other end of inductance L 2 is connected with an end of capacitor C 3 and an end of interchange output.The source electrode of field effect transistor Q3 is connected with the drain electrode of field effect transistor Q4 and an end of inductance L 3, and the other end of inductance L 3 is connected with the other end of capacitor C 3 and the other end of interchange output.The negative pole of storage battery is connected with the source electrode of field effect transistor Q2, Q4, Q5 and the other end of capacitor C 2 respectively.
The grid of field effect transistor Q5 is by control circuit input pulse width modulation signal, and the dutycycle of regulating this signal can obtain a stable high-voltage dc voltage at capacitor C 2 two ends.The grid of field effect transistor Q1, Q2, Q3, Q4 is imported another pulse width modulating signal by control circuit, and the input of field effect transistor Q1, Q4 is identical, and the input of field effect transistor Q2, Q3 is identical, so the input of field effect transistor Q1, Q2 is just in time complementary.Periodically change by sine function by the dutycycle of regulating this signal, and then pass through the lower pass-filter of inductance L 2, L3 and capacitor C 3, can produce an ac power supply output stable, the pure sinusoid waveform at the two ends that exchange output.
The present invention need not sampling and the control circuit described in the solar energy, wind energy, commercial power combined power supply of transformer and is made of a single-chip microcomputer.
The DC electrical source of storage battery is raised to high voltage direct current by the DC boosting unit.Become the high-frequency PWM waveform by bridge type inverse then.This waveform has just become the pure sine wave Ac of low frequency by after the filtering unit filters.The voltage and current parameter of ac output end feeds back to voltage sample and current sample respectively.The signal of voltage sample passes to the driving of boosting.If overtension then control the DC boosting unit and reduce voltage, otherwise then control DC boosting unit boosted voltage.Current sampling signal is given wave function.The PWM data of the sine function of wave function output are at ordinary times given bridge type inverse, and when electric current was excessive, wave function stopped the output function waveform, reached the effect of protective circuit.
See also Fig. 4.Wherein, Fig. 4 a is the schematic diagram of corresponding wind energy and the preferential powering mode of solar energy; Fig. 4 b is the schematic diagram that correspondence switches to the civil power input.Among the figure: G represents ground connection, and N represents zero line, and L represents live wire.The COMM communication 8 that the present invention need not in the solar energy, wind energy, commercial power combined power supply of transformer is made of a relay, be connected the live wire end that exchanges output circuit, under the general state, the output of bridge type inverse unit, civil power input and interchange output three's ground wire and zero line all are connected together respectively.The live wire of power supply output is connected on the common of a single-pole double throw relay.The live wire of bridge type inverse unit output is connected on the normally-closed contact K1 of relay, and the live wire of civil power input is connected on the normally opened contact K2.Zhuan Zhi output at ordinary times is exactly the output of inverter circuit, i.e. solar wind-energy generating output.Shown in Fig. 4 a.When sampling and control circuit found that by sample circuit accumulator electric-quantity is not enough, the order actuating of relay switched to the civil power input, that is: contact K1 often opens, and the live wire that the bridge type inverse unit is exported is connected on the normally opened contact of relay; Contact K2 is normally closed, and the live wire of civil power input is connected on the normally-closed contact K2 of relay, shown in Fig. 4 b.This moment, device just switched to the civil power input.
The electric energy that the present invention can be simultaneously changed into solar energy and wind energy organically combines, and is transformed into stable civilian ac power supply, and can and civil power between switch.Simple in structure, easy to use, reliable.
Claims (9)
1, need not solar energy, wind energy, the commercial power combined power supply of transformer, comprise device of solar generating, wind energy power unit and mains power supply; It is characterized in that, comprise that also a cogeneration circuit, a storage battery, a regulating circuit and exchange output circuit; The output terminal of described device of solar generating, wind energy power unit is connected with the input end of cogeneration circuit; The output terminal of cogeneration circuit is connected with storage battery; The output terminal of storage battery is connected with the input end of regulating circuit; The output terminal of regulating circuit is connected with the interchange output circuit; Also comprise a COMM communication, described mains power supply is connected with the interchange output circuit by COMM communication.
2, solar energy, wind energy, the commercial power combined power supply that need not transformer according to claim 1 is characterized in that, described regulating circuit comprises inverter circuit and sampling and control circuit; The input end of described inverter circuit is connected with the output terminal of storage battery and sampling and control circuit respectively, and its output terminal is connected with the input end that exchanges output circuit; The input end of described sampling and control circuit is connected with the output terminal that exchanges output circuit.
3, solar energy, wind energy, the commercial power combined power supply that need not transformer according to claim 2 is characterized in that, described inverter circuit comprises DC boosting unit, bridge type inverse unit and the filter unit that is linked in sequence; Wherein: described DC boosting unit is used for the low voltage lifting of storage battery output is transported to the bridge type inverse unit for high voltage, the bridge type inverse unit is used for that this VDC is transformed into alternating voltage and is transported to filter unit, and the output terminal of filter unit is connected with the input end that exchanges output circuit.
4, solar energy, wind energy, the commercial power combined power supply that need not transformer according to claim 3 is characterized in that, described DC boosting unit mainly is made of a field effect transistor and auxiliary element thereof.
5, solar energy, wind energy, the commercial power combined power supply that need not transformer according to claim 3 is characterized in that, described bridge type inverse unit is mainly formed bridge circuit by four field effect transistors and constituted.
6, solar energy, wind energy, the commercial power combined power supply that need not transformer according to claim 3 is characterized in that described filter unit mainly is made of electric capacity and inductance.
7, solar energy, wind energy, the commercial power combined power supply that need not transformer according to claim 2 is characterized in that, described sampling and control circuit comprise voltage sample unit, current sampling unit, driver element and wave function unit boost; Wherein: the voltage sample unit is used to gather the voltage signal that exchanges output circuit output and is transported to the driver element that boosts, the working state of driver element according to this SC sigmal control inverter circuit of boosting; Current sampling unit is used to gather the current signal that exchanges output circuit output and is transported to the wave function unit, and the wave function unit is according to the work wave of this SC sigmal control inverter circuit; The output terminal of voltage sample unit is connected with the input end of the driver element that boosts, and the output terminal of the driver element that boosts is connected with the input end of the DC boosting unit of inverter circuit; The output terminal of current sampling unit is connected with the input end of wave function unit, and the output terminal of wave function unit is connected with the input end of the bridge type inverse unit of inverter circuit; The output terminal that exchanges output circuit is connected with the input end of voltage sample unit and current sampling unit respectively.
8, solar energy, wind energy, the commercial power combined power supply that need not transformer according to claim 7 is characterized in that described sampling and control circuit are made of a single-chip microcomputer.
9, solar energy, wind energy, the commercial power combined power supply that need not transformer according to claim 7, it is characterized in that, described COMM communication is made of a relay, be connected the live wire end that exchanges output circuit, under the general state, the live wire of bridge type inverse unit output is connected on the normally-closed contact of relay, and the live wire of civil power input is connected on the normally opened contact of relay; When accumulator electric-quantity is not enough, the actuating of relay, the live wire of bridge type inverse unit output is connected on the normally opened contact of relay, and the live wire of civil power input is connected on the normally-closed contact of relay.
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| CN 200610026168 CN101063440A (en) | 2006-04-28 | 2006-04-28 | Solar,wind energy and commercial power combined power supply without transformer device |
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| CN 200610026168 CN101063440A (en) | 2006-04-28 | 2006-04-28 | Solar,wind energy and commercial power combined power supply without transformer device |
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| CN101814769A (en) * | 2010-03-08 | 2010-08-25 | 北京凯华网联新能源技术有限公司 | Electricity supply system of wind and light commercial power complementary communication base station |
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| CN102714426B (en) * | 2009-12-21 | 2014-12-03 | 松下电器产业株式会社 | Electricity feeding device and electricity feeding system using the same |
| CN102714426A (en) * | 2009-12-21 | 2012-10-03 | 松下电器产业株式会社 | Electricity feeding device and electricity feeding system using the same |
| CN101814769B (en) * | 2010-03-08 | 2012-06-27 | 北京凯华网联新能源技术有限公司 | Electricity supply system of wind and light commercial power complementary communication base station |
| CN101814769A (en) * | 2010-03-08 | 2010-08-25 | 北京凯华网联新能源技术有限公司 | Electricity supply system of wind and light commercial power complementary communication base station |
| CN102468685A (en) * | 2010-11-19 | 2012-05-23 | 中兴通讯股份有限公司 | Power supply system |
| CN102593947A (en) * | 2012-02-28 | 2012-07-18 | 深圳市赛格导航科技股份有限公司 | Processing system and method for coping with faults of motor train units caused by power cut and lighting stroke |
| CN102593947B (en) * | 2012-02-28 | 2016-09-14 | 深圳市赛格导航科技股份有限公司 | A kind of EMUs tackle the have a power failure processing system with lightning fault and method |
| CN102664197A (en) * | 2012-06-05 | 2012-09-12 | 长安大学 | JFET (Junction Field Effect Transistor) and manufacturing method thereof, and micro inverter using JFET |
| CN102664197B (en) * | 2012-06-05 | 2014-08-06 | 长安大学 | JFET (Junction Field Effect Transistor) and manufacturing method thereof, and micro inverter using JFET |
| CN103595230A (en) * | 2012-08-14 | 2014-02-19 | 波尔提尔R&D株式会社 | AC-DC power supply device and switching mode power supply device |
| CN103595230B (en) * | 2012-08-14 | 2017-05-10 | 波尔提尔R&D株式会社 | AC-DC power supply device and switching mode power supply device |
| CN108923419A (en) * | 2018-07-11 | 2018-11-30 | 佛山市众盈电子有限公司 | It is a kind of intelligence alternating current identification with control power supply |
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Application publication date: 20071031 |