CN102097814B - Grid-connected inverter system for wind power generation - Google Patents
Grid-connected inverter system for wind power generation Download PDFInfo
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- CN102097814B CN102097814B CN200910213781.1A CN200910213781A CN102097814B CN 102097814 B CN102097814 B CN 102097814B CN 200910213781 A CN200910213781 A CN 200910213781A CN 102097814 B CN102097814 B CN 102097814B
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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
Abstract
The invention discloses a grid-connected inverter system for wind power generation, and relates to grid-connected inverter equipment on a wind driven generator system. The grid-connected inverter system comprises direct-current input equipment, an inverter circuit, a microprocessor, a keyboard input circuit and a display circuit, wherein wind energy is converted into alternating current with variable amplitude and frequency through a wind driven generator, and the converted alternating current is converted into direct current through a controller; the inverter circuit converts the direct current into sine wave current with the same frequency and the same phase as a power grid, and feeds the power into the power grid; the microprocessor receives sampling signals of a direct current input voltage, synchronous signals of a power grid voltage and alternating current output voltage signals of the inverter circuit; the inverter circuit is driven to work through a driving circuit; and the keyboard input circuit and the display circuit are used for inputting and displaying information in the microprocessor. The grid-connected inverter system solves the problems that the conventional grid-connected inverter system for wind power generation has poor power grid tracking synchronism and the inverter cannot be quickly locked when the power grid is interrupted or the power in the power grid is over high or over low.
Description
Technical field
The present invention relates to the parallel network reverse equipment on wind powered generator system.
Background technology
At present both at home and abroad wind generator system is roughly divided into two large classes: a class is to take the wind generator system that middle low power blower fan is the independent operating led.Be mainly used in non-Electric region resident's daily life electricity consumption.This system and electrical network are unconnected, independent operating.This type of type is from net type wind turbine generator.
Another kind of is to take large merit wind turbine generator as main type, and single wind generator produces alone electric energy, then by grid-connection device, electric energy is connected to the grid, and to electrical network, provides electric power, then by electrical network to customer power supply.This type of type is grid type wind turbine generator.
The citation form that at present both at home and abroad wind power generator incorporated in power network is connected to the grid is that separate unit is independently connected to the grid by grid-connection device separately respectively according to circumstances.Existing combining inverter exists tracking synchronized poor; When electrical network occur to interrupt, when too high or too low, inverter is the shortcoming such as lock machine rapidly.
Summary of the invention
The object of this invention is to provide a kind ofly for wind power-generating grid-connected inversion system, the invention solves the tracking synchronized that existing wind power-generating grid-connected inversion system exists poor; When electrical network occur to interrupt, when too high or too low, inverter is the problem such as lock machine rapidly.
Wind power-generating grid-connected inversion system of the present invention, comprising:
Direct current input equipment, wind energy is converted into the alternating current of amplitude and frequency change by wind-driven generator, and the alternating current of conversion is transformed to direct current by controller;
Inverter circuit, is converted into direct current energy and electrical network same frequency, synchronous sine-wave current, and by this electric power feed-in electrical network;
Microprocessor, the sampled signal of reception DC input voitage, the synchronizing signal of line voltage, and the ac output voltage signal of inverter circuit; By drive circuit, drive inverter circuit to work;
Keyboard input circuit and display circuit, for input and demonstration microprocessor information.
Current combining inverter effect is that grid-connected photovoltaic system is comprised of solar module, combining inverter, metering device and distribution system.Solar energy is converted into direct current power by solar module, by combining inverter, direct current energy is converted into and electrical network same frequency, synchronous sine-wave current again, and by this electric power feed-in electrical network, photovoltaic combining inverter is the key equipment in solar power system.
Wind power-generating grid-connected inversion system of the present invention, is comprised of blower fan, controller, combining inverter and distribution system.Wind energy is converted into the alternating current of amplitude and frequency change by wind-driven generator, the alternating current of conversion is transformed to direct current by controller.By grid type inverter, direct current energy is converted into not electrical network same frequency, synchronous sine-wave current, feed-in electrical network again.Visible combining inverter is the key equipment in wind generator system.Wind power-generating grid-connected inversion system characteristic of the present invention:
1, grid-connected inverters output, follows the tracks of electrical network and reaches Millisecond, with electrical network Complete Synchronization.
2, inverter detection of grid is when in three seconds, electrical network is normal, and inverter just starts grid-connected work.Guaranteed that inverter can not damage because of electrical network frequent fluctuation.
3, in grid-connected inverters when work, occurs interrupting when electrical network, or too high, when too low, inverter can be in≤10ms lock machine automatically.
4, possesses output short-circuit, the defencive functions such as overload.
5, power output is constant.(when DC voltage is normal).
6, when wind power generation wind-force is not enough, or photovoltaic power generation solar is when not enough, is in particular in that DC voltage declines, and combining inverter can reduce power output thereupon.When DC is too low, reach inverter DC when point protection, inverter can quit work by automatic lock machine, and when DC recovers, inverter is started working again automatically, grid-connected output.
7, when wind power generation wind-force excessive (as typhoon), or photovoltaic generation Intensity of the sunlight is when excessive, and while being in particular in DC overvoltage, inverter is protection lock machine automatically.When DC recovers normal, the inverter grid-connected output of automatically resuming work again.
Accompanying drawing explanation
Fig. 1 is way circuit schematic diagram of the present invention;
Fig. 2 is the circuit diagram of cpu control circuit;
Fig. 3 is the circuit diagram of PWM modulation circuit;
Fig. 4 is the circuit diagram of power-supplying circuit;
Fig. 5 is the circuit diagram of over current protection circuit;
Fig. 6 is the circuit diagram of output detection circuit;
Fig. 7 is the connection block diagram of inverter circuit.
Embodiment
Below in conjunction with accompanying drawing, also with best execution mode, the present invention is described in detail:
Consult Fig. 1, comprising:
Direct current input equipment, wind energy is converted into the alternating current of amplitude and frequency change by wind-driven generator, and the alternating current of conversion is transformed to direct current by controller;
Inverter circuit, is converted into direct current energy and electrical network same frequency, synchronous sine-wave current, and by this electric power feed-in electrical network;
Microprocessor, the sampled signal of reception DC input voitage, the synchronizing signal of line voltage, and the ac output voltage signal of inverter circuit; By drive circuit, drive inverter circuit to work;
Keyboard input circuit and display circuit, for input and demonstration microprocessor information.
Consult Fig. 7, described inverter circuit comprises: cpu control circuit, power-supplying circuit, PWM modulation circuit, current foldback circuit, output detection circuit; Cpu control circuit is joining power power supply circuits, PWM modulation circuit, current foldback circuit, output detection circuit respectively; Current foldback circuit connects PW modulation circuit; Power-supplying circuit connects output detection circuit.
Consult Fig. 2, cpu control circuit comprises:
Controller J1;
Controller J2, the ground pin 5 connection electrical resistance R79 of controller J2; Other one end of resistance R 79 connects capacitor C22 and resistance R 78, the other one end of resistor C22 ground connection, and other one end of resistance R 78 connects LOADAD;
Controller J3, controller J3+BAT pin one connection+BAT, controller J3+12V pin two connects the positive pole of capacitor C45, capacitor C35, and one end of capacitor C23; The positive pole of capacitor C45, capacitor C35, and other one end ground connection of capacitor C23; The pin ground pin 5 of controller J3, ground pin 6, ground pin 7, ground pin 8 ground connection;
Ground pin 1 ground connection of controller J4, the LCD0 pin two of controller J4, LCD1 pin 3, LCD2 pin 4 be one end of connection electrical resistance R86, R85, R84 respectively, and other one end of resistance R 86, R85, R84 connects LCD0, LCD1, LCD2; Controller J4+5V pin 5 connection+5V power supplys; POWER pin 6 and the ON/OFF pin 7 of controller J4 connect respectively POWER and switch;
Controller J5, ground pin 1 ground connection of controller J5; Controller is in one end of the LCD2 of J5 pin two connection electrical resistance R17 and resistance R 40, and other one end of resistance R 17 connects the base stage of triode Q1, other one end connection+5V power supply of the collector electrode of triode Q1 and resistance R 40; One end of the emitter connection electrical resistance R39 of triode Q1, other one end of resistance R 39 connects LCD2;
Microcontroller U14, the ground pin 1 connection electrical resistance R67 of microcontroller U14 and one end of capacitor C2, capacitor C 2 other one end ground connection, other one end connection+5V power supply of resistance R 67; The ground pin 2 of microcontroller U14 connects one end of positive pole, resistance R 2, R87 and the capacitor C 51 of triode D100; Other one end ground connection of capacitor C 51 and resistance R 2; The other one termination+BAT of resistance R 87, the negative pole connection+5V power supply of triode D100; UBZ pin 6 coupled in series resistance R 77 and the buzzer BUZ1 of microcontroller U14; Ground pin 8 ground connection of microcontroller U14; The ground pin 9 of microcontroller U14 connects crystal oscillator Z2 and capacitor C 49, capacitor C 49 other one end ground connection; The ground pin 10 of microcontroller U14 connects the other one end of crystal oscillator Z2 and capacitor C 50, capacitor C 50 other one end ground connection; One end of TX pin one 7 connection electrical resistance R4, resistance R 1 and the resistance R 3 of microcontroller U14, resistance R 4 other one end ground connection, the TX pin two of other one end Articulation Controller J6 of resistance R 1, ground pin 3 ground connection of controller J6, other one end of the RX pin one connection electrical resistance R3 of controller J6 and the RX pin one 8 of microcontroller U14; The ground pin 19 of microcontroller U14 connects one end and the ground connection of capacitor C 29, microcontroller U14+5V pin two 0 connects the other one end of capacitor C 29 and+5V power supply; One end of the FANS pin two 6 connection electrical resistance R31 of microcontroller U14; Microcontroller U14OUTCYC pin two 8 is connected to one end of output detection circuit resistance R 88; The INCYC pin two 7 of microcontroller U14 is connected to one end of output detection circuit resistance R 93; The LOAD AD pin 4 of microcontroller U14 is connected to one end of power-supplying circuit resistance R 4; The PWMADJ pin one 3 of microcontroller U14 is connected to one end of current foldback circuit R11; The CURR pin 3 of microcontroller U14 is connected to the other end of current foldback circuit R11;
The OUT+ pin one of J2, OUT-pin two, IN+ pin 3, IN-pin 4, ground pin 5 are connected to pin OUT pin one, OUT-pin two, IN+ pin 3, IN-pin 4, the LOAD AD pin 5 of power-supplying circuit J5; The RELAY TRIM pin one of J1, RELAY BOOST pin two, RELAY PASS pin 3, FANS pin 4, POWER pin 5, ON/OFF pin 6 are connected to pin REL AY TRJM pin one, REL AY BOOST pin two, REL AY PASS pin 3, FANS pin 4, POWER pin 5, the ON/OFF pin 6 of power-supplying circuit J6; J3+BAT pin one ,+12V pin two ,+5V pin 3 ,+5V pin 4, ground pin 5-8 be connected to pin+BATT pin one ,+12V pin two ,+5V pin 3 ,+5V pin 5, the ground pin 5-8 of power-supplying circuit J7; The ON/OFF pin 6 of J1 is connected to one end of power-supplying circuit resistance R 11; The POWER pin 5 of J1 is connected to the other end of power-supplying circuit resistance R 38.
Consult Fig. 3, PWM modulation circuit comprises:
Microprocessor U1, the C+ pin two of microprocessor U1 connects the positive pole of capacitor C 10, and the negative pole of capacitor C 10 connects the negative pole of microcontroller U1; The GND pin 3 of microprocessor U1 connects the negative pole of capacitor C 1 and the positive pole of capacitor C 9, the positive pole of capacitor C 1 connects one end of V+ pin 8, diode D24 negative pole and the capacitor C 20 of microprocessor U1, the anodal connection electrical resistance R13 of diode D24, other one termination+12V power supply of resistance R 13; The negative pole of capacitor C 9 connects VOUT pin 5, the negative pole of diode D26 and other one end of capacitor C 20 of microprocessor U1, the plus earth of diode D26;
Microprocessor U7, the VCC pin one of microprocessor U7 connect capacitor C 11 and+12V power supply, the COM pin 4 connection-10V power supplys of microprocessor U7, the Vb pin 5 connection electrical resistance R8 of microprocessor U7, other one end of resistance 8 connects the collector electrode of triode Q2, the base stage of triode Q9 and Q3, the base stage coupled in series resistance R 6 of triode Q2, triode Q2 emitter connects a 10V power supply, the emitter of triode Q9 and Q3 connects VLOA, collector electrode connection+12V the power supply of triode Q3 and capacitor C 24, the collector electrode of triode Q9 connect capacitor C 24 other one end and-10V power supply, the HO pin 6 of microprocessor U7 connects the collector electrode of triode Q14, the Vs pin 7 connection electrical resistance R16 of microprocessor U7, other one end of resistance R 16 connects the base stage of triode Q12 and Q14, the LO pin 8 of microprocessor U7 connects the collector electrode of triode Q12, and the emitter of triode Q12 and triode Q14 connects VHOA,
Microprocessor U2, the C+ pin two of microprocessor U2 connects the positive pole of capacitor C 18, and the VOUT pin 4 of microprocessor U2 connects the negative pole of capacitor C 18; The GND pin 3 of microprocessor U2 connects the positive pole of capacitor C 8 negative poles, capacitor C 17, the positive pole of capacitor C 8 connects negative pole, one end of capacitor C 21, the V+ pin 8 of microprocessor U2 of diode D25, other one end series resistance R15 of diode D25 and+12V power supply; Other one end of capacitor C 17 connects other one end of capacitor C 21, the VOUT pin 5 of the negative pole of diode D27, microprocessor U2, the positive pole connection-10V power supply of diode D27;
Microprocessor U8, the VCC pin one connection+12V power supply of microprocessor U8, capacitor C 12, capacitor C 12 other one termination-10V power supply; The COM pin 4 connection-10V power supplys of microprocessor U8; The Vb pin 5 connection electrical resistance R9 of microprocessor U8, the other one end of resistance R 9 connects the base stage of collector electrode, triode Q10 and the Q7 of triode Q6, the base stage connection electrical resistance R7 of triode Q6, emitter connection-10V the power supply of triode Q6, connect respectively+12V of the collector electrode of triode Q7 and Q10 and-10V power supply series capacitance C25, the emitter of triode Q7 and Q10 connects VLOB; The HO pin 6 of microprocessor U8 connects the collector electrode of triode Q15, the Vs pin 7 connection electrical resistance R18 of microprocessor U8, other one end of resistance R 18 connects the base stage of triode Q13 and Q15, the emitter of triode Q13 and Q15 connects VHOB, and the collector electrode of triode Q13 connects the LO pin 8 of microprocessor U8;
Integrated circuit U12, it comprises operational amplifier U12A, U12B, U12C, U12D, the in-phase output end of operational amplifier U12A connects the reflection output of operational amplifier U12B, and the inverse output terminal of operational amplifier U12A connects the in-phase output end of operational amplifier U12B; The output of operational amplifier U12A is one end of connection electrical resistance R113, resistance R 33 respectively, the output connection electrical resistance R114 of operational amplifier U12B and one end of resistance R 34, other one end of other one end connection electrical resistance R114 of resistance R 113 is, the output of one end of resistance R 89, operational amplifier U12D, other one termination+12V power supply of resistance R 89, the in-phase output end of operational amplifier U12D draws PWM, and the inverse output terminal of operational amplifier U12D connects the inverse output terminal of operational amplifier U12C; The in-phase output end of operational amplifier U12C meets CHARGE; The output of operational amplifier U12C connects the negative pole of diode D3 and D6, the positive pole difference connection electrical resistance R33 of diode D3 and D6 and other one end of resistance R 34;
The SD pin 3 of microprocessor U7 is connected to the pin two of current foldback circuit R36.
Consult Fig. 5, described over current protection circuit comprises:
Integrated circuit, this circuit is comprised of operational amplifier, positive pole connection roadblock capacitor C 15 ground connection of operational amplifier U11A, the in-phase output end connection electrical resistance R105 of operational amplifier U11A, capacitor C 27, resistance R 107, other one end ground connection of capacitor C 27, the other end series resistance R108 of resistance R 107, the in-phase output end of other one end connection electrical resistance R106 of resistance R 108, capacitor C 28, operational amplifier U11B, the other end ground connection of capacitor C 28; The inverse output terminal connection electrical resistance R91 of operational amplifier U11A, resistance R 109, other one end and the resistance R 110 of the inverse output terminal connection electrical resistance R91 of operational amplifier U11B, other one end of resistance R 110 connects output and the resistance R 23 of operational amplifier U11B; The output connection electrical resistance R109 of operational amplifier U11A and resistance R 19; The other one end of resistance R 19 connects the in-phase output end of capacitor C 46, resistance R 20 and operational amplifier U11C, the other end of resistance R 23 connects the inverse output terminal of capacitor C 47, resistance R 24 and operational amplifier U11C, the positive pole of the output of the other end connection operational amplifier U11C of resistance R 24, resistance R 25, diode D19, resistance R 20 connect operational amplifier U11D in-phase output end and+5V power supply, the other end connection electrical resistance R26 of resistance R 25, the inverse output terminal of operational amplifier; The other end of resistance R 26 connects the output of diode D20 positive pole, operational amplifier U11D, and the negative pole of diode D19 connects diode D20 negative pole, resistance R 35; Other one end connection electrical resistance R115 of resistance R 35, the inverse output terminal of capacitor C 48, resistance R 22, operational amplifier U13A, the other end ground connection of resistance R 115, capacitor C 48, resistance R 22 connects capacitor C 38, resistance R 11, the other end ground connection of capacitor C 38; The output connection electrical resistance R116 of operational amplifier U13A, resistance R 36, the output of operational amplifier U13B, capacitor C 7; Other end connection+5V the power supply of resistance R 36, the other end ground connection of capacitor C 7; The inverse output terminal of operational amplifier U13B connects capacitor C 16, other one end ground connection of capacitor C 16; The other end of in-phase output end connection electrical resistance R116 of operational amplifier U13B and the negative pole of diode D21; The in-phase output end of operational amplifier U13A connects capacitor C 37, resistance R 21, the other end ground connection of capacitor C 37; The output of the other end connection operational amplifier U10C of resistance R 21 and inverse output terminal, capacitor C 6; The output in the same way of operational amplifier U10C connects capacitor C 5, resistance R 112, the other end ground connection of capacitor C 5; Other one end of resistance R 112 connects the other end and the resistance R 111 of capacitor C 6, other one end connection electrical resistance R32 of resistance R 111, the other end ground connection of resistance R 32;
Microprocessor U3, connects capacitor C 26 between the C+ pin two of microprocessor U3 and C-pin 4, GND pin 3 ground connection of microprocessor U3; The VOUT pin 5 of microprocessor U3 connect capacitor C 19 negative poles and-10V power supply; Capacitor C 19 plus earths; The V+ pin 8 connection+12V power supplys of microprocessor U3;
One end of R111 is connected to the PWMADJ pin one 3 of cpu control circuit U14; The other end of R36 is connected to the SD pin 3 of PWM modulation circuit U7; The pin two of R11 is connected to the CURR pin 3 of cpu control circuit U14.
Consult Fig. 6, described output circuit structure: the output series resistance R88 of operational amplifier U9A, capacitor C 36, capacitor C 36 other end ground connection; The inverse output terminal of operational amplifier U9A connects the inverse output terminal of capacitor C 13, resistance R 95, resistance R 96, operational amplifier U9B, the other end of capacitor C 13 and resistance R 96 other end ground connection, resistance R 95 other end connection+5v power supplys; The output connection electrical resistance R93 of operational amplifier U9B, resistance R 93 other ends connect capacitor C 55, capacitor C 55 other end ground connection; The in-phase output end of operational amplifier U9A connects capacitor C 39, resistance R 41, the other end ground connection of capacitor C 39; Resistance R 41 other end connection electrical resistance R97, resistance R 98, the other end ground connection of resistance R 97, the other end of resistance R 98 contact resistance R101, resistance R 101 connects inverse output terminal, the resistance R 44 of operational amplifier U10A, and the other end of resistance R 44 connects capacitor C 42, the other end ground connection of capacitor C 42; The in-phase output end connection electrical resistance R102 of operational amplifier U10A, resistance R 42, the other end of resistance R 42 connects capacitor C 41, the other end ground connection of capacitor C 41, the other end connection+5V power supply of resistance R 102; The in-phase output end of operational amplifier U9B connects capacitor C 40, resistance R 43, the other end ground connection of capacitor C 40, resistance R 43 connection electrical resistance R99, resistance R 100, the other end ground connection of resistance R 99, the other end connection electrical resistance R103 of resistance R 100 and the output of operational amplifier U10B; The other end of resistance R 103 connects inverse output terminal and the resistance R 46 of operational amplifier U10B, and the other end of resistance R 46 connects capacitor C 44, the other end ground connection of capacitor C 44; The in-phase output end connection electrical resistance R104 of operational amplifier U10B, resistance R 45, resistance R 104 another termination+5V power supplys, resistance R 45 another termination capacitor C 43, the other end ground connection of capacitor C 43;
One end of resistance R 88 is connected to the OUTCYC pin two 8 of cpu control circuit U14; One end of resistance R 93 is connected to the INCYC pin two 7 of cpu control circuit U14; The other end of resistance R 42 is connected to the OUT pin one of power-supplying circuit J5; One end of resistance R 43 is connected to the LINE AD pin of cpu control circuit U14; The other end of resistance R 44 is connected to the OUT-pin two of power-supplying circuit J5; The other end of resistance R 45 is connected to the IN+ pin 3 of power-supplying circuit J5; The other end of resistance R 46 is connected to the IN-pin 4 of power-supplying circuit J5.
Described microcontroller U1, microcontroller U2, microcontroller U3, adopt model to be: LM7812CT chip, and its effect is: the three-terminal voltage-stabilizing monolithic that is stable+12v stable voltage unsettled+24v voltage step-down is controlled core;
Described microcontroller U7 and microcontroller U8, adopt model to be: IR2104 chip is the driving chip of power MOSFET tube, with signal, closes function, has and prevent that electric bridge manages up and down the dead band of simultaneously opening and control;
Described microcontroller U14; model is PIC16F73 chip; 8 micro-chip processors of the U.S. MICROCHIP company high-performance whole CMOS technique of producing. be the kernel processor chip of this inverter. the needed SPWM signal of inverter; the detection of various analog quantitys, the abnormal protection of inverter etc. is all processed by this chip.
Claims (4)
1. wind power-generating grid-connected inversion system, comprising:
Direct current input equipment, wind energy is converted into the alternating current of amplitude and frequency change by wind-driven generator, and the alternating current of conversion is transformed to direct current by controller;
Inverter circuit, is converted into direct current energy and electrical network same frequency, synchronous sine-wave current, and by this electric power feed-in electrical network;
Microprocessor, the sampled signal of reception DC input voitage, the synchronizing signal of line voltage, and the friendship of inverter circuit
Stream output voltage signal; By drive circuit, drive inverter circuit to work;
Keyboard input circuit and display circuit, for input and demonstration microprocessor information;
Described inverter circuit comprises: cpu control circuit, power-supplying circuit, PWM modulation circuit, current foldback circuit, output detection circuit; Cpu control circuit is joining power power supply circuits, PWM modulation circuit, current foldback circuit, output detection circuit respectively; Current foldback circuit connects PWM modulation circuit; Power-supplying circuit connects output detection circuit;
It is characterized in that, cpu control circuit comprises:
Controller J1;
Controller J2, the ground pin 5 connection electrical resistance R79 of controller J2; Other one end of resistance R 79 connects capacitor C22 and resistance R 78, the other one end of resistor C22 ground connection, and other one end of resistance R 78 connects LOADAD;
Controller J3, controller J3+BAT pin one connection+BAT, controller J3+12V pin two connects the positive pole of capacitor C45, capacitor C35, and one end of capacitor C23; The positive pole of capacitor C45, capacitor C35, and other one end ground connection of capacitor C23; The pin ground pin 5 of controller J3, ground pin 6, ground pin 7, ground pin 8 ground connection;
Ground pin 1 ground connection of controller J4, the LCD0 pin two of controller J4, LCD1 pin 3, LCD2 pin 4 be one end of connection electrical resistance R86, R85, R84 respectively, and other one end of resistance R 86, R85, R84 connects LCD0, LCD1, LCD2; Controller J4+5V pin 5 connection+5V power supplys; POWER pin 6 and the ON/OFF pin 7 of controller J4 connect respectively POWER and switch;
Controller J5, ground pin 1 ground connection of controller J5; Controller is in one end of the LCD2 of J5 pin two connection electrical resistance R17 and resistance R 40, and other one end of resistance R 17 connects the base stage of triode Q1, other one end connection+5V power supply of the collector electrode of triode Q1 and resistance R 40; One end of the emitter connection electrical resistance R39 of triode Q1, other one end of resistance R 39 connects LCD2;
Microcontroller U14, the ground pin 1 connection electrical resistance R67 of microcontroller U14 and one end of capacitor C2, capacitor C 2 other one end ground connection, other one end connection+5V power supply of resistance R 67; The ground pin 2 of microcontroller U14 connects one end of positive pole, resistance R 2, R87 and the capacitor C 51 of triode D100; Other one end ground connection of capacitor C 51 and resistance R 2; The other one termination+BAT of resistance R 87, the negative pole connection+5V power supply of triode D100; UBZ pin 6 coupled in series resistance R 77 and the buzzer BUZ1 of microcontroller U14; Ground pin 8 ground connection of microcontroller U14; The ground pin 9 of microcontroller U14 connects crystal oscillator Z2 and capacitor C 49, capacitor C 49 other one end ground connection; The ground pin 10 of microcontroller U14 connects the other one end of crystal oscillator Z2 and capacitor C 50, capacitor C 50 other one end ground connection; One end of TX pin one 7 connection electrical resistance R4, resistance R 1 and the resistance R 3 of microcontroller U14, resistance R 4 other one end ground connection, the TX pin two of other one end Articulation Controller J6 of resistance R 1, ground pin 3 ground connection of controller J6, other one end of the RX pin one connection electrical resistance R3 of controller J6 and the RX pin one 8 of microcontroller U14; The ground pin 19 of microcontroller U14 connects one end and the ground connection of capacitor C 29, microcontroller U14+5V pin two 0 connects the other one end of capacitor C 29 and+5V power supply; One end of the FANS pin two 6 connection electrical resistance R31 of microcontroller U14; Microcontroller U14OUTCYC pin two 8 is connected to one end of output detection circuit resistance R 88; The INCYC pin two 7 of microcontroller U14 is connected to one end of output detection circuit resistance R 93; The LOAD AD pin 4 of microcontroller U14 is connected to one end of power-supplying circuit resistance R 4; The PWMADJ pin one 3 of microcontroller U14 is connected to one end of current foldback circuit R11; The CURR pin 3 of microcontroller U14 is connected to the other end of current foldback circuit R11;
The OUT+ pin one of J2, OUT-pin two, IN+ pin 3, IN-pin 4, ground pin 5 are connected to pin OUT pin one, OUT-pin two, IN+ pin 3, IN-pin 4, the LOADAD pin 5 of power-supplying circuit J5; The RELAY TRIM pin one of J1, RELAY BOOST pin two, RELAY PASS pin 3, FANS pin 4, POWER pin 5, ON/OFF pin 6 are connected to pin REL AY TRJM pin one, REL AY BOOST pin two, REL AY PASS pin 3, FANS pin 4, POWER pin 5, the ON/OFF pin 6 of power-supplying circuit J6; J3+BAT pin one ,+12V pin two ,+5V pin 3 ,+5V pin 4, ground pin 5-8 be connected to pin+BATT pin one ,+12V pin two ,+5V pin 3 ,+5V pin 5, the ground pin 5-8 of power-supplying circuit J7; The ON/OFF pin 6 of J1 is connected to one end of power-supplying circuit resistance R 11; The POWER pin 5 of J1 is connected to the other end of power-supplying circuit resistance R 38.
2. wind power-generating grid-connected inversion system as claimed in claim 1, is characterized in that, described PWM modulation circuit comprises: microprocessor U1, and the C+ pin two of microprocessor U1 connects the positive pole of capacitor C 10, and the negative pole of capacitor C 10 connects the negative pole of microcontroller U1; The GND pin 3 of microprocessor U1 connects the negative pole of capacitor C 1 and the positive pole of capacitor C 9, the positive pole of capacitor C 1 connects one end of V+ pin 8, diode D24 negative pole and the capacitor C 20 of microprocessor U1, the anodal connection electrical resistance R13 of diode D24, other one termination+12V power supply of resistance R 13; The negative pole of capacitor C 9 connects VOUT pin 5, the negative pole of diode D26 and other one end of capacitor C 20 of microprocessor U1, the plus earth of diode D26;
Microprocessor U7, the VCC pin one of microprocessor U7 connect capacitor C 11 and+12V power supply, the COM pin 4 connection-10V power supplys of microprocessor U7, the Vb pin 5 connection electrical resistance R8 of microprocessor U7, other one end of resistance 8 connects the collector electrode of triode Q2, the base stage of triode Q9 and Q3, the base stage coupled in series resistance R 6 of triode Q2, triode Q2 emitter connects a 10V power supply, the emitter of triode Q9 and Q3 connects VLOA, collector electrode connection+12V the power supply of triode Q3 and capacitor C 24, the collector electrode of triode Q9 connect capacitor C 24 other one end and-10V power supply, the HO pin 6 of microprocessor U7 connects the collector electrode of triode Q14, the Vs pin 7 connection electrical resistance R16 of microprocessor U7, other one end of resistance R 16 connects the base stage of triode Q12 and Q14, the L0 pin 8 of microprocessor U7 connects the collector electrode of triode Q12, and the emitter of triode Q12 and triode Q14 connects VHOA,
Microprocessor U2, the C+ pin two of microprocessor U2 connects the positive pole of capacitor C 18, and the VOUT pin 4 of microprocessor U2 connects the negative pole of capacitor C 18; The GND pin 3 of microprocessor U2 connects the positive pole of capacitor C 8 negative poles, capacitor C 17, the positive pole of capacitor C 8 connects negative pole, one end of capacitor C 21, the V+ pin 8 of microprocessor U2 of diode D25, other one end series resistance R15 of diode D25 and+12V power supply; Other one end of capacitor C 17 connects other one end of capacitor C 21, the VOUT pin 5 of the negative pole of diode D27, microprocessor U2, the positive pole connection-10V power supply of diode D27;
Microprocessor U8, the VCC pin one connection+12V power supply of microprocessor U8, capacitor C 12, capacitor C 12 other one termination-10V power supply; The COM pin 4 connection-10V power supplys of microprocessor U8; The Vb pin 5 connection electrical resistance R9 of microprocessor U8, the other one end of resistance R 9 connects the base stage of collector electrode, triode Q10 and the Q7 of triode Q6, the base stage connection electrical resistance R7 of triode Q6, emitter connection-10V the power supply of triode Q6, connect respectively+12V of the collector electrode of triode Q7 and Q10 and-10V power supply series capacitance C25, the emitter of triode Q7 and Q10 connects VLOB; The HO pin 6 of microprocessor U8 connects the collector electrode of triode Q15, the Vs pin 7 connection electrical resistance R18 of microprocessor U8, other one end of resistance R 18 connects the base stage of triode Q13 and Q15, the emitter of triode Q13 and Q15 connects VHOB, and the collector electrode of triode Q13 connects the LO pin 8 of microprocessor U8;
Integrated circuit U12, it comprises operational amplifier U12A, U12B, U12C, U12D, the in-phase output end of operational amplifier U12A connects the reflection output of operational amplifier U12B, and the inverse output terminal of operational amplifier U12A connects the in-phase output end of operational amplifier U12B; The output of operational amplifier U12A is one end of connection electrical resistance R113, resistance R 33 respectively, the output connection electrical resistance R114 of operational amplifier U12B and one end of resistance R 34, other one end of other one end connection electrical resistance R114 of resistance R 113 is, the output of one end of resistance R 89, operational amplifier U12D, other one termination+12V power supply of resistance R 89, the in-phase output end of operational amplifier U12D draws PWM, and the inverse output terminal of operational amplifier U12D connects the inverse output terminal of operational amplifier U12C; The in-phase output end of operational amplifier U12C meets CHARGE; The output of operational amplifier U12C connects the negative pole of diode D3 and D6, the positive pole difference connection electrical resistance R33 of diode D3 and D6 and other one end of resistance R 34;
The SD pin 3 of microprocessor U7 is connected to the pin two of current foldback circuit R36.
3. wind power-generating grid-connected inversion system as claimed in claim 1, it is characterized in that, described current foldback circuit comprises: integrated circuit, this circuit is comprised of operational amplifier, positive pole connection roadblock capacitor C 15 ground connection of operational amplifier U11A, the in-phase output end connection electrical resistance R105 of operational amplifier U11A, capacitor C 27, resistance R 107, other one end ground connection of capacitor C 27, the other end series resistance R108 of resistance R 107, the in-phase output end of other one end connection electrical resistance R106 of resistance R 108, capacitor C 28, operational amplifier U11B, the other end ground connection of capacitor C 28; The inverse output terminal connection electrical resistance R91 of operational amplifier U11A, resistance R 109, other one end and the resistance R 110 of the inverse output terminal connection electrical resistance R91 of operational amplifier U11B, other one end of resistance R 110 connects output and the resistance R 23 of operational amplifier U11B; The output connection electrical resistance R109 of operational amplifier U11A and resistance R 19; The other one end of resistance R 19 connects the in-phase output end of capacitor C 46, resistance R 20 and operational amplifier U11C, the other end of resistance R 23 connects the inverse output terminal of capacitor C 47, resistance R 24 and operational amplifier U11C, the positive pole of the output of the other end connection operational amplifier U11C of resistance R 24, resistance R 25, diode D19, resistance R 20 connect operational amplifier U11D in-phase output end and+5V power supply, the other end connection electrical resistance R26 of resistance R 25, the inverse output terminal of operational amplifier; The other end of resistance R 26 connects the output of diode D20 positive pole, operational amplifier U11D, and the negative pole of diode D19 connects diode D20 negative pole, resistance R 35; Other one end connection electrical resistance R115 of resistance R 35, the inverse output terminal of capacitor C 48, resistance R 22, operational amplifier U13A, the other end ground connection of resistance R 115, capacitor C 48, resistance R 22 connects capacitor C 38, resistance R 11, the other end ground connection of capacitor C 38; The output connection electrical resistance R116 of operational amplifier U13A, resistance R 36, the output of operational amplifier U13B, capacitor C 7; Other end connection+5V the power supply of resistance R 36, the other end ground connection of capacitor C 7; The inverse output terminal of operational amplifier U13B connects capacitor C 16, other one end ground connection of capacitor C 16; The other end of in-phase output end connection electrical resistance R116 of operational amplifier U13B and the negative pole of diode D21; The in-phase output end of operational amplifier U13A connects capacitor C 37, resistance R 21, the other end ground connection of capacitor C 37; The output of the other end connection operational amplifier U10C of resistance R 21 and inverse output terminal, capacitor C 6; The output in the same way of operational amplifier U10C connects capacitor C 5, resistance R 112, the other end ground connection of capacitor C 5; Other one end of resistance R 112 connects the other end and the resistance R 111 of capacitor C 6, other one end connection electrical resistance R32 of resistance R 111, the other end ground connection of resistance R 32;
Microprocessor U3, connects capacitor C 26 between the C+ pin two of microprocessor U3 and C-pin 4, GND pin 3 ground connection of microprocessor U3; The VOUT pin 5 of microprocessor U3 connect capacitor C 19 negative poles and-10V power supply; Capacitor C 19 plus earths; The V+ pin 8 connection+12V power supplys of microprocessor U3;
One end of R111 is connected to the PWMADJ pin one 3 of cpu control circuit U14; The other end of R36 is connected to the SD pin 3 of PWM modulation circuit U7; The pin two of R11 is connected to the CURR pin 3 of cpu control circuit U14.
4. wind power-generating grid-connected inversion system as claimed in claim 1, is characterized in that described output circuit structure: the output series resistance R88 of operational amplifier U9A, capacitor C 36, capacitor C 36 other end ground connection; The inverse output terminal of operational amplifier U9A connects the inverse output terminal of capacitor C 13, resistance R 95, resistance R 96, operational amplifier U9B, the other end of capacitor C 13 and resistance R 96 other end ground connection, resistance R 95 other end connection+5v power supplys; The output connection electrical resistance R93 of operational amplifier U9B, resistance R 93 other ends connect capacitor C 55, capacitor C 55 other end ground connection; The in-phase output end of operational amplifier U9A connects capacitor C 39, resistance R 41, the other end ground connection of capacitor C 39; Resistance R 41 other end connection electrical resistance R97, resistance R 98, the other end ground connection of resistance R 97, the other end of resistance R 98 contact resistance R101, resistance R 101 connects inverse output terminal, the resistance R 44 of operational amplifier U10A, and the other end of resistance R 44 connects capacitor C 42, the other end ground connection of capacitor C 42; The in-phase output end connection electrical resistance R102 of operational amplifier U10A, resistance R 42, the other end of resistance R 42 connects capacitor C 41, the other end ground connection of capacitor C 41, the other end connection+5V power supply of resistance R 102; The in-phase output end of operational amplifier U9B connects capacitor C 40, resistance R 43, the other end ground connection of capacitor C 40, resistance R 43 connection electrical resistance R99, resistance R 100, the other end ground connection of resistance R 99, the other end connection electrical resistance R103 of resistance R 100 and the output of operational amplifier U10B; The other end of resistance R 103 connects inverse output terminal and the resistance R 46 of operational amplifier U10B, and the other end of resistance R 46 connects capacitor C 44, the other end ground connection of capacitor C 44; The in-phase output end connection electrical resistance R104 of operational amplifier U10B, resistance R 45, resistance R 104 another termination+5V power supplys, resistance R 45 another termination capacitor C 43, the other end ground connection of capacitor C 43;
One end of resistance R 88 is connected to the OUTCYC pin two 8 of cpu control circuit U14; One end of resistance R 93 is connected to the INCYC pin two 7 of cpu control circuit U14; The other end of resistance R 42 is connected to the OUT pin one of power-supplying circuit J5; One end of resistance R 43 is connected to the LINEAD pin of cpu control circuit U14; The other end of resistance R 44 is connected to the OUT-pin two of power-supplying circuit J5; The other end of resistance R 45 is connected to the IN+ pin 3 of power-supplying circuit J5; The other end of resistance R 46 is connected to the IN-pin 4 of power-supplying circuit J5.
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| US9325054B2 (en) | 2011-11-30 | 2016-04-26 | Novatek Microelectronics Corp. | Power supply circuit for antenna, antenna control system, and digital communication device |
| TWI493396B (en) * | 2011-11-30 | 2015-07-21 | Novatek Microelectronics Corp | Unlocking method and portable electronic device and touch-sensitive device |
| JP5938746B2 (en) * | 2012-10-02 | 2016-06-22 | パナソニックＩｐマネジメント株式会社 | Power control system and photovoltaic power generation system |
| CN104135031B (en) * | 2014-08-11 | 2016-04-20 | 四川慧盈科技有限责任公司 | A kind of wind generator system |
| CN106972797B (en) * | 2017-04-28 | 2023-05-05 | 扬州乔恒电子有限公司 | Small grid-connected wind driven generator controller capable of preventing frequent braking |
| CN113054730B (en) * | 2021-03-26 | 2024-03-26 | 许昌学院 | Power frequency wind power generation energy storage inverter circuit |
| CN113036812B (en) * | 2021-04-28 | 2023-05-12 | 南方海洋科学与工程广东省实验室(湛江) | Grid-connected system for ocean temperature difference energy power generation |
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Effective date of registration: 20161115 Address after: 528225 Guangdong Province Nanhai District of Foshan City Shishan village Langsha Avenue North of the Patentee after: Foshan Ouyad Electronic Co., Ltd. Address before: 510000, Guangzhou, Guangdong province Panyu District Dashi seaside garden, Hai Hua Ge, block B, room 704 Patentee before: Tan Zongxiang |