CN102624073B - Solar inverter power supply - Google Patents
Solar inverter power supply Download PDFInfo
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- CN102624073B CN102624073B CN201210094318.1A CN201210094318A CN102624073B CN 102624073 B CN102624073 B CN 102624073B CN 201210094318 A CN201210094318 A CN 201210094318A CN 102624073 B CN102624073 B CN 102624073B
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- 239000002253 acid Substances 0.000 claims abstract description 23
- 239000003990 capacitor Substances 0.000 claims description 85
- 230000005669 field effect Effects 0.000 claims description 48
- 230000000087 stabilizing effect Effects 0.000 claims description 38
- 238000001914 filtration Methods 0.000 claims description 26
- 238000005070 sampling Methods 0.000 claims description 18
- 238000007493 shaping process Methods 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001074 Lay pewter Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
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- 230000005622 photoelectricity Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The invention discloses a solar inverter power supply. A solar photovoltaic cell and a commercial power complementation unit are connected with an intelligent charging and discharge control unit respectively. The intelligent charging and discharging control unit is connected with a lead-acid battery which is connected with an inverter power supply. The commercial power complementation unit comprises a first unit, a second unit, a third unit and a fourth unit, wherein the first, second and fourth units are formed by connecting commercial power and the intelligent charging and discharging control unit through a transformer; and the third unit is formed by directly connecting the commercial power and the intelligent charging and discharging control unit. Solar energy is adopted as a power supply, so that energy sources are saved, and environmental protection is realized. The inverter power supply reaches an advanced world standard, the photoelectric conversion efficiency of the inverter power supply reaches 15 percent, and the efficiency of an inverter is also over 90 percent. The solar inverter power supply has pure waveforms, a small harmonic component, the distortion degree of less than 1 percent, high anti-overload capability, high short circuit protection capability, high efficiency, a high energy-saving index and a high environmental protection index.
Description
Technical field
The present invention relates to a kind of inverter.Particularly relate to a kind of photoelectricity rate of rotation high, the high solar energy inverter of operating efficiency of inverter.
Background technology
Solar energy (solar Energy) refers generally to the emittance of sunlight, solar energy power generating can provide various perfect power conversions and access scheme for various systems, be mainly used in regenerative resource grid-connected system, from net type village electric power system and outdoor power supply, and can be electrical network and extend difficult area communication, traffic street lighting etc. provides electric power, and solar energy has application prospect widely at renewable energy source domain.As solar energy is used for to inverter.
Current existing inverter is all to adopt powered battery, and battery used needs again charging, so waste energy, makes again cost high.
Summary of the invention
Technical problem to be solved by this invention is that a kind of the save energy, environmental protection, and the high solar energy inverter of operating efficiency are provided.
The technical solution adopted in the present invention is: a kind of solar energy inverter, include solar-energy photo-voltaic cell, civil power supplementary units, discharge and recharge intelligent control unit, lead-acid battery and inverter, wherein, described solar-energy photo-voltaic cell is connected respectively and discharges and recharges intelligent control unit with civil power supplementary units, the described intelligent control unit that discharges and recharges connects lead-acid battery, and described lead-acid battery connects inverter.
Described civil power supplementary units includes first module, second unit, Unit the 3rd and Unit the 4th, wherein said first module, second unit and Unit the 4th are to be connected and to be discharged and recharged intelligent control unit by transformer by civil power, and described Unit the 3rd is directly to be connected and discharge and recharge intelligent control unit by civil power.
The described intelligent control unit that discharges and recharges includes: control circuit, main circuit power supply, output major loop and solar-energy photo-voltaic cell power-supplying circuit, described control circuit connects respectively main circuit power supply and solar-energy photo-voltaic cell power-supplying circuit, described main circuit power supply connects output major loop, wherein, the power input of described control circuit connects respectively first module and the second unit in civil power supplementary units, the power input of described main circuit power supply connects the Unit the 3rd in civil power supplementary units, the power input of described solar-energy photo-voltaic cell power-supplying circuit connects the Unit the 4th in civil power supplementary units, described solar-energy photo-voltaic cell by solar-energy photo-voltaic cell power-supplying circuit to the output of exporting major loop.
Described control circuit includes pulse width modulating chip A1, 1 pin of described pulse width modulating chip A1 and 9 pin are by capacitor C 22 ground connection, 2 pin are respectively by resistance R 16 and capacitor C 20 ground connection, 5 pin and 7 pin are by capacitor C 17 ground connection, 6 pin are by resistance R 15 ground connection, 8 pin are by electrochemical capacitor C16 ground connection, 10 pin are by resistance R 30 ground connection, 12 pin ground connection, 16 pin are by capacitor C 20 ground connection, contact resistance R14 between 2 pin and 16 pin, 16 pin are also successively by resistance R 17 and potentiometer W1 ground connection, 15 pin connect solar-energy photo-voltaic cell power-supplying circuit, 13 pin connect solar-energy photo-voltaic cell power-supplying circuit by resistance R 13, 11 pin connect 2 pin of the first output coupler A3 by resistance 9, 14 pin connect 2 pin of the second output coupler A4 by resistance 11, 3 pin of described the first output coupler A3 are by resistance R 10 ground connection, output pin 6 pin connect main circuit power supply, power input pin 8 pin are connected the first rectification with 5 pin, filtering and voltage stabilizing circuit, the first described rectification, the power input of filtering and voltage stabilizing circuit is connected the first module in civil power supplementary units, 3 pin of described the second output coupler A4 are by resistance R 12 ground connection, output pin 6 pin connect main circuit power supply, power input pin 8 pin are connected the second rectification with 5 pin, filtering and voltage stabilizing circuit, the second described rectification, the power input of filtering and voltage stabilizing circuit is connected the second unit in civil power supplementary units, the first described rectification, filtering and voltage stabilizing circuit and the second rectification, the output of filtering and voltage stabilizing circuit is also connected respectively main circuit power supply.
The formation of described main circuit power supply is: the power input of rectifier bridge Z1 connects the Unit the 3rd in civil power supplementary units, output parallel resistance R1, one end of resistance R 1 connects respectively electrochemical capacitor C1, capacitor C 3, one end of capacitor C 5, and the drain electrode of connection field effect transistor G1, the other end of resistance R 1 connects respectively electrochemical capacitor C2, one end of capacitor C 4, and the other end of capacitor C 5, the first rectification in the source electrode of field effect transistor G2 and control circuit, filtering and voltage stabilizing circuit, described electrochemical capacitor C1, electrochemical capacitor C2, capacitor C 3 is connected with the other end of capacitor C 4 power input of exporting major loop, drain electrode is connected respectively the second rectification in control circuit to the source electrode of described field effect transistor G1 with field effect transistor G2, filtering and voltage stabilizing circuit, the power input of output major loop, the grid of described field effect transistor G1 connects output pin 6 pin of the second output coupler A4 in control circuit by resistance R 2, between the grid of field effect transistor G1 and source electrode, be parallel with voltage stabilizing didoe D1 and resistance R 3, the grid of described field effect transistor G2 connects output pin 6 pin of the first output coupler A3 in control circuit by resistance R 4, between the grid of field effect transistor G2 and source electrode, be parallel with voltage stabilizing didoe D2 and resistance R 5.
The formation of described solar-energy photo-voltaic cell power-supplying circuit is: the power input of rectifier bridge Z2 connects the Unit the 4th in civil power supplementary units, the positive pole of rectifier bridge Z2 output connects one end of electrochemical capacitor C14 and one end of three terminal regulator A5, the other end of three terminal regulator A5 connects respectively one end of electrochemical capacitor C15, 13 pin of stating pulse width modulating chip A1 and 15 pin in one end of relay J K coil and control circuit, the negative pole of described rectifier bridge Z2 output, the other end of electrochemical capacitor C14, the 3rd end of three terminal regulator A5 and the other end ground connection of relay J K coil, described solar-energy photo-voltaic cell is the output that connects output major loop by the normally opened contact JK1 of relay J K.
The formation of described output major loop is: the primary coil of transformer B1 connects the output of main circuit power supply, the positive pole of the first output winding of transformer B1 is by diode D3, resistance R 30 ground connection, the negative level ground connection of the first output winding of transformer B1, the negative pole of described diode D3 is also by the earth of electrochemical capacitor C23 and LED 1, the 3rd output termination of the second output winding of transformer B1 and the 5th output termination be the one end of common contact resistance R31 and resistance R 21 afterwards of the parallel connection by two diodes separately, the other end of resistance R 31 connects the negative pole of lead-out terminal, the other end of resistance R 21 connects the positive pole of lead-out terminal, the 4th output termination of the second output winding of transformer B1 connects the negative pole of lead-out terminal.
Described inverter includes DC/DC rod changer assembly, inverter control circuit, waveform generator, main inverter bridge circuit, transformation treatment circuit and shaping and sampling feedback circuit, described DC/DC rod changer assembly, inverter control circuit is connected successively with waveform generator, described main inverter bridge circuit connects respectively inverter control circuit and transformer B, the output of described transformer B connects shaping and sampling feedback circuit, described waveform generator connects shaping and sampling feedback circuit by feedback sample circuit, the output of shaping and sampling feedback circuit forms the ac output end of solar energy inverter, wherein, described DC/DC rod changer assembly is connected respectively lead-acid battery with the power input of main inverter bridge circuit.
Described inverter control circuit includes respectively and exports with DC/DC rod changer assembly the capacitor C 31 being connected with waveform generator, C32, C33, one end of C34, resistance R 32, R34, R42, R35, one end of R37 and R43, the primary coil of the other end connection transformer B of described capacitor C 31 and C32, connect main inverter bridge circuit, the other end of described resistance R 32 is by the collector electrode of resistance R 33 connecting triode T1, and 4 pin of connection photoelectrical coupler A7, the emitter of the other end connecting triode T1 of resistance R 34, and connect main inverter bridge circuit, the grid of the other end difference connecting triode T1 of resistance R 42 and 3 pin of photoelectrical coupler A7, the other end of described resistance R 35 is by the collector electrode of resistance R 36 connecting triode T2, and 4 pin of connection photoelectrical coupler A8, the emitter of the other end connecting triode T2 of described resistance R 37, and connect main inverter bridge circuit, the grid of other end connecting triode T2 of resistance R 43 and 3 pin of photoelectrical coupler A8, 1 pin of described photoelectrical coupler A7 connects 11 pin of waveform generation chip A6 by resistance R 44, the 2 pin ground connection of photoelectrical coupler A7, 1 pin of described photoelectrical coupler A8 connects 14 pin of waveform generation chip A6 by resistance R 45, the 2 pin ground connection of photoelectrical coupler A8, 13 pin of waveform generation chip A6 connect respectively lead-acid battery together with 15 pin by resistance R 46, 4 pin of photoelectrical coupler A9 in shaping and sampling feedback circuit and feedback sample circuit, 10 pin are by resistance R 47 ground connection, 8 pin are by electrochemical capacitor C41 ground connection, 12 pin ground connection, 5 pin and 7 pin are by capacitor C 42 ground connection, 6 pin are by resistance R 50 ground connection, 9 pin are successively by diode D8 and potentiometer W2 ground connection, 9 pin also connect 16 pin by resistance R 52, 1 pin is by capacitor C 40 ground connection, 2 pin are by resistance R 51 ground connection, connect 6 pin by resistance R 48, 6 pin are by capacitor C 44 ground connection, described waveform generator also includes connecting of resistance R 49 and capacitor C 38, wherein together with one end of the other end of resistance R 49 and capacitor C 39, connect the adjustable end of the potentiometer W3 of feedback sample circuit by resistance R 53, the other end of the other end of capacitor C 38 and capacitor C 39 is by capacitor C 43 ground connection, one end ground connection of described potentiometer W3, the other end connects 3 pin of photoelectrical coupler A9, 1 pin of photoelectrical coupler A9 is connected shaping and sampling feedback circuit with 2 pin.
Described main inverter bridge circuit includes the capacitor C 35 being connected with lead-acid battery output, C36, C37, field effect transistor G3 and field effect transistor G4, 2 ends of the other end connection transformer B primary coil of described capacitor C 35 and C36, 1 end of the drain electrode connection transformer B primary coil of the source electrode of field effect transistor G3 and field effect transistor G4, the grid of field effect transistor G3 connects the emitter of the triode T1 in inverter control circuit by resistance R 38, the grid of field effect transistor G4 connects the emitter of the triode T2 in inverter control circuit by resistance R 40, between the grid of described field effect transistor G3 and source electrode, be parallel with voltage stabilizing didoe D5 and resistance R 39, between the grid of described field effect transistor G4 and source electrode, be parallel with voltage stabilizing didoe D6 and resistance R 41.
Solar energy inverter of the present invention, owing to adopting solar energy as power supply, saves the energy, environmental protection.Inverter reaches international advanced level; its opto-electronic conversion reaches 15%; the efficiency of inverter is also more than 90%; the feature of solar energy inverter maximum of the present invention is that waveform is pure, and harmonic component is little, and the distortion factor is only below 1%; anti-overload ability; short-circuit protection ability is all excellent, is a kind of efficient, the inverter that energy-conserving and environment-protective index is good.
Accompanying drawing explanation
Fig. 1 is entire block diagram of the present invention;
Fig. 2 is the circuit theory diagrams that the present invention discharges and recharges intelligent control unit;
Fig. 3 is the circuit theory diagrams of inverter of the present invention.
In figure:
1: solar-energy photo-voltaic cell 2: civil power supplementary units
21: first module 22: second unit
24: the Unit four, 23: the Unit 3
3: discharge and recharge intelligent control unit 31: control circuit
32: main circuit power supply 33: output major loop
34: the rectification in 311: the first of solar-energy photo-voltaic cell power-supplying circuit, filtering and voltage stabilizing circuit
Rectification in 312: the second, filtering and voltage stabilizing circuit 4: lead-acid battery
5: inverter 51:DC/DC rod changer assembly
52: inverter control circuit 53: waveform generator
54: main inverter bridge circuit 55: shaping and sampling feedback circuit
Embodiment
Below in conjunction with embodiment and accompanying drawing, solar energy inverter of the present invention is described in detail.
As shown in Figure 1, solar energy inverter of the present invention, include solar-energy photo-voltaic cell 1, civil power supplementary units 2, discharge and recharge intelligent control unit 3, lead-acid battery 4 and inverter 5, wherein, described solar-energy photo-voltaic cell 1 is connected respectively and discharges and recharges intelligent control unit 3 with civil power supplementary units 2, the described intelligent control unit 3 that discharges and recharges connects lead-acid battery 4, and described lead-acid battery 4 connects inverter 5.
As shown in Figure 2, described civil power supplementary units 2 includes first module 21, second unit 22, the 3rd unit 23 and the 4th unit 24, wherein said first module 21, second unit 22 and the 4th unit 24 are to be connected and to be discharged and recharged intelligent control unit 3 by transformer by civil power, and the 3rd described unit 23 is directly to be connected and discharge and recharge intelligent control unit 3 by civil power.Wherein said transformer is 5～10W control transformer.
The effect that discharges and recharges intelligent control unit 3 is control the operating state of whole system and storage battery is played to additives for overcharge protection; the effect of over; the function that simultaneously possesses temperature-compensating at the larger place of temperature difference power supply of the present invention also can arrange light-operated if needed and close space-time switch.
As shown in Figure 2, the described intelligent control unit 3 that discharges and recharges includes: control circuit 31, main circuit power supply 32, output major loop 33 and solar-energy photo-voltaic cell power-supplying circuit 34, described control circuit 31 connects respectively main circuit power supply 32 and solar-energy photo-voltaic cell power-supplying circuit 34, described main circuit power supply 32 connects output major loop 33, wherein, the power input of described control circuit 31 connects respectively first module 21 and the second unit 22 in civil power supplementary units 2, the power input of described main circuit power supply 32 connects the 3rd unit 23 in civil power supplementary units 2, the power input of described solar-energy photo-voltaic cell power-supplying circuit 34 connects the 4th unit 24 in civil power supplementary units 2, described solar-energy photo-voltaic cell 1 is the output to output major loop 33 by solar-energy photo-voltaic cell power-supplying circuit 34.
Described control circuit 31 includes pulse width modulating chip A1, described pulse width modulating chip A1 adopts the chip that model is SG3523, 1 pin of this chip and 9 pin are by capacitor C 22 ground connection, 2 pin are respectively by resistance R 16 and capacitor C 20 ground connection, 5 pin and 7 pin are by capacitor C 17 ground connection, 6 pin are by resistance R 15 ground connection, 8 pin are by electrochemical capacitor C16 ground connection, 10 pin are by resistance R 30 ground connection, 12 pin ground connection, 16 pin are by capacitor C 20 ground connection, contact resistance R14 between 2 pin and 16 pin, 16 pin are also successively by resistance R 17 and potentiometer W1 ground connection, 15 pin connect solar-energy photo-voltaic cell power-supplying circuit 34, 13 pin connect solar-energy photo-voltaic cell power-supplying circuit 34 by resistance R 13, 11 pin connect 2 pin of the first output coupler A3 by resistance 9, 14 pin connect 2 pin of the second output coupler A4 by resistance 11, 3 pin of described the first output coupler A3 are by resistance R 10 ground connection, output pin 6 pin connect main circuit power supply 32, power input pin 8 pin are connected the first rectification with 5 pin, filtering and voltage stabilizing circuit 311, the first described rectification, filtering is connected the first module 21 in civil power supplementary units 2 with the power input of voltage stabilizing circuit 311, 3 pin of described the second output coupler A4 are by resistance R 12 ground connection, output pin 6 pin connect main circuit power supply 32, power input pin 8 pin are connected the second rectification with 5 pin, filtering and voltage stabilizing circuit 312, the second described rectification, filtering is connected the second unit 22 in civil power supplementary units 2 with the power input of voltage stabilizing circuit 312, the first described rectification, filtering and voltage stabilizing circuit 311 and the second rectification, the output of filtering and voltage stabilizing circuit 312 is also connected respectively main circuit power supply 32.
The formation of described main circuit power supply 32 is: the power input of rectifier bridge Z1 connects the 3rd unit 23 in civil power supplementary units 2, output parallel resistance R1, one end of resistance R 1 connects respectively electrochemical capacitor C1, capacitor C 3, one end of capacitor C 5, and the drain electrode of connection field effect transistor G1, the other end of resistance R 1 connects respectively electrochemical capacitor C2, one end of capacitor C 4, and the other end of capacitor C 5, the first rectification in the source electrode of field effect transistor G2 and control circuit 31, filtering and voltage stabilizing circuit 311, described electrochemical capacitor C1, electrochemical capacitor C2, capacitor C 3 is connected the power input of exporting major loop 33 with the other end of capacitor C 4, drain electrode is connected respectively the second rectification in control circuit 31 to the source electrode of described field effect transistor G1 with field effect transistor G2, filtering and voltage stabilizing circuit 312, the power input of output major loop 33, the grid of described field effect transistor G1 connects output pin 6 pin of the second output coupler A4 in control circuit 31 by resistance R 2, between the grid of field effect transistor G1 and source electrode, be parallel with voltage stabilizing didoe D1 and resistance R 3, the grid of described field effect transistor G2 connects output pin 6 pin of the first output coupler A3 in control circuit 31 by resistance R 4, between the grid of field effect transistor G2 and source electrode, be parallel with voltage stabilizing didoe D2 and resistance R 5.
The formation of described solar-energy photo-voltaic cell power-supplying circuit 34 is: the power input of rectifier bridge Z2 connects the 4th unit 24 in civil power supplementary units 2, the positive pole of rectifier bridge Z2 output connects one end of electrochemical capacitor C14 and one end of three terminal regulator A5, the other end of three terminal regulator A5 connects respectively one end of electrochemical capacitor C15, 13 pin of stating pulse width modulating chip A1 and 15 pin in one end of relay J K coil and control circuit 31, the negative pole of described rectifier bridge Z2 output, the other end of electrochemical capacitor C14, the 3rd end of three terminal regulator A5 and the other end ground connection of relay J K coil, described solar-energy photo-voltaic cell 1 is the output that connects output major loop 33 by the normally opened contact JK1 of relay J K.
The formation of described output major loop 33 is: the primary coil of transformer B1 connects the output of main circuit power supply 32, the positive pole of the first output winding of transformer B1 is by diode D3, resistance R 30 ground connection, the negative level ground connection of the first output winding of transformer B1, the negative pole of described diode D3 is also by the earth of electrochemical capacitor C23 and LED 1, the 3rd output termination of the second output winding of transformer B1 and the 5th output termination be the one end of common contact resistance R31 and resistance R 21 afterwards of the parallel connection by two diodes separately, the other end of resistance R 31 connects the negative pole of lead-out terminal, the other end of resistance R 21 connects the positive pole of lead-out terminal, the 4th output termination of the second output winding of transformer B1 connects the negative pole of lead-out terminal.
Lead-acid battery 4 of the present invention adopts domestic ST series solar energy storage lead-acid battery, its performance characteristics adopts the high leypewter of high-purity and ultrapure electrolyte, self-discharge of battery is little, dark cyclic design average life span is more than 5 years, 20% electric discharge is capable of circulation more than 2200 times, and it is completely adequate being applied in long-term undercharge or frequent adverse circumstances of discharging.
The solar energy storage lead-acid battery environment for use that invention adopts is-30 ℃--45 ℃, optimum temperature is 25 ℃, and the stable operation that solar energy storage lead-acid battery is system of the present invention provides reliable assurance.
As shown in Figure 3, described inverter 5 includes DC/DC rod changer assembly 51, inverter control circuit 52, waveform generator 53, main inverter bridge circuit 54, transformer B2 and shaping and sampling feedback circuit 55, described DC/DC rod changer assembly 51, inverter control circuit 52 is connected successively with waveform generator 53, described main inverter bridge circuit 54 connects respectively inverter control circuit 52 and transformer B, the output of described transformer B connects shaping and sampling feedback circuit 55, described waveform generator 53 connects shaping and sampling feedback circuit 55 by feedback sample circuit, the output of shaping and sampling feedback circuit 55 forms the ac output end of solar energy inverter, wherein, described DC/DC rod changer assembly 51 is connected respectively lead-acid battery 4 with the power input of main inverter bridge circuit 54.
Described inverter control circuit 52 includes respectively and exports with DC/DC rod changer assembly 51 capacitor C 31 being connected with waveform generator 53, C32, C33, one end of C34, resistance R 32, R34, R42, R35, one end of R37 and R43, the primary coil of the other end connection transformer B of described capacitor C 31 and C32, connect main inverter bridge circuit 54, the other end of described resistance R 32 is by the collector electrode of resistance R 33 connecting triode T1, and 4 pin of connection photoelectrical coupler A7, the emitter of the other end connecting triode T1 of resistance R 34, and connect main inverter bridge circuit 54, the grid of the other end difference connecting triode T1 of resistance R 42 and 3 pin of photoelectrical coupler A7, the other end of described resistance R 35 is by the collector electrode of resistance R 36 connecting triode T2, and 4 pin of connection photoelectrical coupler A8, the emitter of the other end connecting triode T2 of described resistance R 37, and connect main inverter bridge circuit 54, the grid of other end connecting triode T2 of resistance R 43 and 3 pin of photoelectrical coupler A8, 1 pin of described photoelectrical coupler A7 connects 11 pin of waveform generation chip A6 by resistance R 44, the 2 pin ground connection of photoelectrical coupler A7, 1 pin of described photoelectrical coupler A8 connects 14 pin of waveform generation chip A6 by resistance R 45, the 2 pin ground connection of photoelectrical coupler A8, 13 pin of waveform generation chip A6 connect respectively lead-acid battery 4 together with 15 pin by resistance R 46, 4 pin of photoelectrical coupler A9 in shaping and sampling feedback circuit 55 and feedback sample circuit, 10 pin are by resistance R 47 ground connection, 8 pin are by electrochemical capacitor C41 ground connection, 12 pin ground connection, 5 pin and 7 pin are by capacitor C 42 ground connection, 6 pin are by resistance R 50 ground connection, 9 pin are successively by diode D8 and potentiometer W2 ground connection, 9 pin also connect 16 pin by resistance R 52, 1 pin is by capacitor C 40 ground connection, 2 pin are by resistance R 51 ground connection, connect 6 pin by resistance R 48, 6 pin are by capacitor C 44 ground connection, described waveform generator 53 also includes connecting of resistance R 49 and capacitor C 38, wherein together with one end of the other end of resistance R 49 and capacitor C 39, connect the adjustable end of the potentiometer W3 of feedback sample circuit by resistance R 53, the other end of the other end of capacitor C 38 and capacitor C 39 is by capacitor C 43 ground connection, one end ground connection of described potentiometer W3, the other end connects 3 pin of photoelectrical coupler A9, 1 pin of photoelectrical coupler A9 is connected shaping and sampling feedback circuit 55 with 2 pin.
Waveform generation chip A6 in waveform generator 53 adopts the chip that model is SG3523.It is the module of NB950 that shaping and sampling feedback circuit 56 adopt model.
Described main inverter bridge circuit 54 includes the capacitor C 35 being connected with lead-acid battery 4 outputs, C36, C37, field effect transistor G3 and field effect transistor G4, 2 ends of the other end connection transformer B primary coil of described capacitor C 35 and C36, 1 end of the drain electrode connection transformer B primary coil of the source electrode of field effect transistor G3 and field effect transistor G4, the grid of field effect transistor G3 connects the emitter of the triode T1 in inverter control circuit 52 by resistance R 38, the grid of field effect transistor G4 connects the emitter of the triode T2 in inverter control circuit 52 by resistance R 40, between the grid of described field effect transistor G3 and source electrode, be parallel with voltage stabilizing didoe D5 and resistance R 39, between the grid of described field effect transistor G4 and source electrode, be parallel with voltage stabilizing didoe D6 and resistance R 41.
Solar-energy photo-voltaic cell in the present invention is that solar panel is the core in solar power system, work is to convert solar energy into electrical energy or be sent in storage battery, to store or promote loaded work piece, the quality of solar panel and cost will directly determine quality and the cost of whole system, single-crystalline-silicon solar-cell panel is selected in 800W power supply output of the present invention, and the conversion efficiency of monocrystalline silicon battery plate is high compared with the solar cell cost performance of other materials.
Press solar cell test standard 1000W/ square metre, every day, light application time selected two of 150W/24V solar panels by within 6 hours, calculating this patent 800W:
300W×6h＝1800Wh
MAX：300/24＝12.5A
Charging interval in the time selecting 150Ah storage battery
150Ah/12.5A＝12h
As select 500W solar panel, charging interval to be only
500/24＝21A
150/21=7 hour, meets China's most of region geographical conditions.
The a pair of c type of transformer adopting non-crystaline amorphous metal in the present invention is as the magnetic core of high voltage high frequency transformer, and the saturation magnetic induction of this material can reach IT, and magnetic permeability is higher.
Transformer primary side's winding 50 circles, pay square winding 2000 circles.No-load voltage ratio 1: 40.Transformer primary side input maximum voltage is 500v, and output voltage can reach 20000V like this.
Through measuring, high-tension transformer parameter is: Ls=0.08H, and Rs=55, Cs=3500pF, its resonance frequency is f0=9.5kHz, can satisfy the demand.
In order to obtain sinusoidal waveform, select 0.5～1mH, inductor filter more than discharge capacity 30A, for reducing inductor loss, inductance should adopt amorphous alloy material.
Claims (2)
1. a solar energy inverter, it is characterized in that, include solar-energy photo-voltaic cell (1), civil power supplementary units (2), discharge and recharge intelligent control unit (3), lead-acid battery (4) and inverter (5), wherein, described solar-energy photo-voltaic cell (1) is connected respectively and discharges and recharges intelligent control unit (3) with civil power supplementary units (2), the described intelligent control unit (3) that discharges and recharges connects lead-acid battery (4), and described lead-acid battery (4) connects inverter (5), the described intelligent control unit (3) that discharges and recharges includes: control circuit (31), main circuit power supply (32), output major loop (33) and solar-energy photo-voltaic cell power-supplying circuit (34), described control circuit (31) connects respectively main circuit power supply (32) and solar-energy photo-voltaic cell power-supplying circuit (34), described main circuit power supply (32) connects output major loop (33), wherein, the power input of described control circuit (31) connects respectively first module (21) and the second unit (22) in civil power supplementary units (2), the power input of described main circuit power supply (32) connects the 3rd unit (23) in civil power supplementary units (2), the power input of described solar-energy photo-voltaic cell power-supplying circuit (34) connects the 4th unit (24) in civil power supplementary units (2), described solar-energy photo-voltaic cell (1) by solar-energy photo-voltaic cell power-supplying circuit (34) to the output of exporting major loop (33), the formation of described solar-energy photo-voltaic cell power-supplying circuit (34) is: the power input of rectifier bridge Z2 connects the 4th unit (24) in civil power supplementary units (2), the positive pole of rectifier bridge Z2 output connects one end of electrochemical capacitor C14 and one end of three terminal regulator A5, the other end of three terminal regulator A5 connects respectively one end of electrochemical capacitor C15, 13 pin of stating pulse width modulating chip A1 and 15 pin in one end of relay J K coil and control circuit (31), the negative pole of described rectifier bridge Z2 output, the other end of electrochemical capacitor C14, the 3rd end of three terminal regulator A5 and the other end ground connection of relay J K coil, described solar-energy photo-voltaic cell (1) is the output that connects output major loop (33) by the normally opened contact JK1 of relay J K.
2. solar energy inverter according to claim 1, it is characterized in that, described civil power supplementary units (2) includes first module (21), second unit (22), the 3rd unit (23) and the 4th unit (24), wherein said first module (21), second unit (22) and the 4th unit (24) are to be connected and to be discharged and recharged intelligent control unit (3) by transformer by civil power, and the 3rd described unit (23) is directly to be connected and discharge and recharge intelligent control unit (3) by civil power.
3. solar energy inverter according to claim 1, it is characterized in that, described control circuit (31) includes the pulse width modulating chip A1 that model is SG3523, 1 pin of described pulse width modulating chip A1 and 9 pin are by capacitor C 22 ground connection, 2 pin are respectively by resistance R 16 and capacitor C 20 ground connection, 5 pin and 7 pin are by capacitor C 17 ground connection, 6 pin are by resistance R 15 ground connection, 8 pin are by electrochemical capacitor C16 ground connection, 10 pin are by resistance R 30 ground connection, 12 pin ground connection, 16 pin are by capacitor C 20 ground connection, contact resistance R14 between 2 pin and 16 pin, 16 pin are also successively by resistance R 17 and potentiometer W1 ground connection, 15 pin connect solar-energy photo-voltaic cell power-supplying circuit (34), 13 pin connect solar-energy photo-voltaic cell power-supplying circuit (34) by resistance R 13, 11 pin connect by resistance 92 pin that model is the first output coupler A3 of TLP250, 14 pin connect by resistance 11 2 pin that model is the second output coupler A4 of TLP250, 3 pin of described the first output coupler A3 are by resistance R 10 ground connection, output pin 6 pin connect main circuit power supply (32), power input pin 8 pin are connected the first rectification, filtering and voltage stabilizing circuit (311) with 5 pin, the power input of described the first rectification, filtering and voltage stabilizing circuit (311) is connected the first module (21) in civil power supplementary units (2), 3 pin of described the second output coupler A4 are by resistance R 12 ground connection, and output pin 6 pin connect main circuit power supply (32), and power input pin 8 pin are connected the second rectification, filtering and voltage stabilizing circuit (312) with 5 pin, the power input of described the second rectification, filtering and voltage stabilizing circuit (312) is connected the second unit (22) in civil power supplementary units (2), and described the first rectification, filtering and voltage stabilizing circuit (311) is also connected respectively main circuit power supply (32) with the output of the second rectification, filtering and voltage stabilizing circuit (312).
4. solar energy inverter according to claim 1, it is characterized in that, the formation of described main circuit power supply (32) is: the power input of rectifier bridge Z1 connects the 3rd unit (23) in civil power supplementary units (2), output parallel resistance R1, one end of resistance R 1 connects respectively electrochemical capacitor C1, capacitor C 3, one end of capacitor C 5, and the drain electrode of connection field effect transistor G1, the other end of resistance R 1 connects respectively electrochemical capacitor C2, one end of capacitor C 4, and the other end of capacitor C 5, the first rectification in the source electrode of field effect transistor G2 and control circuit (31), filtering and voltage stabilizing circuit (311), described electrochemical capacitor C1, electrochemical capacitor C2, capacitor C 3 is connected the power input of output major loop (33) with the other end of capacitor C 4, the source electrode of described field effect transistor G1 is connected the second rectification in control circuit (31) jointly with field effect transistor G2 drain electrode, the power input of filtering and voltage stabilizing circuit (312) and output major loop (33), the grid of described field effect transistor G1 connects output pin 6 pin of the second output coupler A4 in control circuit (31) by resistance R 2, between the grid of field effect transistor G1 and source electrode, be parallel with voltage stabilizing didoe D1 and resistance R 3, the grid of described field effect transistor G2 connects output pin 6 pin of the first output coupler A3 in control circuit (31) by resistance R 4, between the grid of field effect transistor G2 and source electrode, be parallel with voltage stabilizing didoe D2 and resistance R 5.
5. solar energy inverter according to claim 1, it is characterized in that, the formation of described output major loop (33) is: the primary coil of transformer B1 connects the output of main circuit power supply (32), the 6th output of the first output winding of transformer B1 is by diode D3, resistance R 30 ground connection, the 7th output head grounding of the first output winding of transformer B1, the negative pole of described diode D3 is also by the earth of electrochemical capacitor C23 and LED 1, the 3rd output termination of the second output winding of transformer B1 and the 5th output termination be the one end of common contact resistance R31 and resistance R 21 afterwards of the parallel connection by two diodes separately, the other end of resistance R 31 connects the negative pole of lead-out terminal, the other end of resistance R 21 connects the positive pole of lead-out terminal, the 4th output termination of the second output winding of transformer B1 connects the negative pole of lead-out terminal.
6. solar energy inverter according to claim 1, it is characterized in that, described inverter (5) includes DC/DC rod changer assembly (51), inverter control circuit (52), waveform generator (53), main inverter bridge circuit (54) and shaping and sampling feedback circuit (55), described DC/DC rod changer assembly (51), inverter control circuit (52) is connected successively with waveform generator (53), described main inverter bridge circuit (54) connects respectively inverter control circuit (52) and transformer B2, the output of described transformer B2 connects shaping and sampling feedback circuit (55), described waveform generator (53) connects shaping and sampling feedback circuit (55) by feedback sample circuit, the output of shaping and sampling feedback circuit (55) forms the ac output end of solar energy inverter, wherein, described DC/DC rod changer assembly (51) is connected respectively lead-acid battery (4) with the power input of main inverter bridge circuit (54).
7. solar energy inverter according to claim 6, it is characterized in that, described main inverter bridge circuit (54) includes the capacitor C 35 being connected with lead-acid battery (4) output, C36, C37, field effect transistor G3 and field effect transistor G4, 2 ends of the other end connection transformer B2 primary coil of described capacitor C 35 and C36, 1 end of the drain electrode connection transformer B2 primary coil of the source electrode of field effect transistor G3 and field effect transistor G4, the grid of field effect transistor G3 connects the emitter of the triode T1 in inverter control circuit (52) by resistance R 38, the grid of field effect transistor G4 connects the emitter of the triode T2 in inverter control circuit (52) by resistance R 40, between the grid of described field effect transistor G3 and source electrode, be parallel with voltage stabilizing didoe D5 and resistance R 39, between the grid of described field effect transistor G4 and source electrode, be parallel with voltage stabilizing didoe D6 and resistance R 41.
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| CN106469924A (en) * | 2015-08-20 | 2017-03-01 | 天津英赫新能源科技发展有限公司 | A kind of novel photovoltaic solar energy inverter |
| CN106023447A (en) * | 2016-07-25 | 2016-10-12 | 杭州排山信息科技有限公司 | Power management system applied to public bike system |
| CN106602696A (en) * | 2016-11-10 | 2017-04-26 | 安徽新盾消防设备有限公司 | Household fire-protection emergency power supply system |
| CN107733028A (en) * | 2017-10-30 | 2018-02-23 | 深圳硕日新能源科技有限公司 | A kind of anti-reverse apparatus and system of solar panels |
| CN117713198B (en) * | 2023-12-08 | 2024-05-24 | 广州云酷智能设备有限公司 | Grid-connected inverter control core module and photovoltaic power conversion cabinet |
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| US8693228B2 (en) * | 2009-02-19 | 2014-04-08 | Stefan Matan | Power transfer management for local power sources of a grid-tied load |
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| EP0817350A2 (en) * | 1996-06-24 | 1998-01-07 | SANYO ELECTRIC Co., Ltd. | Power-supply system involving system interconnection |
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