CN206790119U - A kind of photovoltaic dispatches power supply optimization system - Google Patents

A kind of photovoltaic dispatches power supply optimization system Download PDF

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CN206790119U
CN206790119U CN201720591184.2U CN201720591184U CN206790119U CN 206790119 U CN206790119 U CN 206790119U CN 201720591184 U CN201720591184 U CN 201720591184U CN 206790119 U CN206790119 U CN 206790119U
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lithium battery
resistance
power supply
pin
electric energy
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鞠振河
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Shenyang Xinyuanrui Technology Co., Ltd.
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Henan Welcome Solar Energy Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A kind of photovoltaic scheduling power supply optimization system belongs to photovoltaic energy storage systems technology field, more particularly to a kind of photovoltaic scheduling power supply optimization system.The utility model provides the photovoltaic that a kind of electricity for sending solar energy effectively and reasonably utilizes and dispatches power supply optimization system.The utility model includes combining inverter, AC/DC Switching Power Supplies, charging and discharging lithium battery controller, lithium battery group, DC/AC inverters, dual power supply and converts switch, scheduling system and photovoltaic module automatically, the electric energy output end mouth with photovoltaic module, lithium battery group are connected the power input of its structural feature combining inverter respectively, the positive terminal of lithium battery group is connected by forward diode with the electric energy electrode input end of combining inverter, and the negative pole end of lithium battery group is connected by relay K1 normal open switch with the electric energy negative input of combining inverter.

Description

A kind of photovoltaic dispatches power supply optimization system
Technical field
The utility model belongs to photovoltaic energy storage systems technology field, more particularly to a kind of photovoltaic scheduling power supply optimization system.
Background technology
PV solar panels capacity is generally 3Kw~10kW at present, family's dosage installation, in resident family's family installation, leads to The direct current that inverter sends solar energy is crossed, becomes alternating current, the electric supply load sent come out from inverter uses.But Due to not possessing scheduling energy storage section, the electricity that solar energy is sent can not be utilized effectively and reasonably.
The content of the invention
The utility model is aiming above mentioned problem, there is provided the light that a kind of electricity for sending solar energy effectively and reasonably utilizes Volt scheduling power supply optimization system.
To achieve the above object, the utility model adopts the following technical scheme that, the utility model include combining inverter, AC/DC Switching Power Supplies, charging and discharging lithium battery controller, lithium battery group, DC/AC inverters, dual power supply convert switch, scheduling automatically System and photovoltaic module, the power input of its structural feature combining inverter electric energy output end with photovoltaic module respectively Mouth, lithium battery group are connected, and the positive terminal of lithium battery group passes through forward diode and the electric energy electrode input end phase of combining inverter Even, the negative pole end of lithium battery group is connected by relay K1 normal open switch with the electric energy negative input of combining inverter.
The electric energy output end of combining inverter converted automatically with power network, dual power supply respectively switch stand-by electric energy input, The electrical energy inputs of AC/DC Switching Power Supplies are connected, and the electrical energy inputs N-terminal of AC/DC Switching Power Supplies is opened by the way that relay K1 is normally opened Pass is connected with the electric energy output end N-terminal of combining inverter, the electrical energy inputs L ends of AC/DC Switching Power Supplies and combining inverter Electric energy output end L ends are connected;The control output end mouth of scheduling system respectively with relay K1 control input port and relay K2 control input port is connected.
The electric energy output end of AC/DC Switching Power Supplies is connected by charging and discharging lithium battery controller with lithium battery group, lithium battery Group is connected with the electrical energy inputs of DC/AC inverters, and electric energy output end and the dual power supply of DC/AC inverters convert switch automatically Conventional electrical energy inputs are connected, and dual power supply converts the load wiring end of switch automatically and family registers one's residence, and master on off is connected.
40 pin of the scheduling system including STC89C52 MCU, MCU respectively with first resistor one end, second resistance one end It is connected, the first resistor other end is connected with the first PC817 chip input anodes, the first PC817 chips input cathode and MCU 32 pin be connected, the output end colelctor electrode of the first PC817 chips is connected with PNP triode Q1 base stage, triode Q1 transmitting Control input port one end with the relay K1, the first diode anode are connected respectively for pole, the first diode cathode difference Be connected with relay K1 the control input port other end, 5V power supplys, triode Q1 colelctor electrode and the first PC817 chips it is defeated Go out to hold grounded emitter.
The second resistance other end is connected with the 2nd PC817 chip input anodes, the 2nd PC817 chips input cathode with MCU 22 pin are connected, and the output end colelctor electrode of the 2nd PC817 chips is connected with PNP triode Q2 base stage, triode Q2 hair Control input port one end with the relay K2, the second diode anode are connected emitter-base bandgap grading respectively, the second diode cathode point It is not connected with relay K2 the control input port other end, 5V power supplys, triode Q2 colelctor electrode and the 2nd PC817 chips Output end grounded emitter.
14,15 pin of the MCU are corresponding with ESP-07 chips U7 16,15 pin respectively to be connected, and U7 10 pin pass through the 3rd Resistance eutral grounding, U7 9 pin ground connection, U7 3 pin connect 3.3V power supplys by the 4th resistance, and U7 8 pin connect 3.3V power supplys.
As a kind of preferred scheme, combining inverter described in the utility model uses HP10000-148 types, AC/DC switches Power supply uses S-120-48 type Switching Power Supplies, and DC/AC inverters use 48-500 type inverters, and dual power supply converts switch and adopted automatically Switch is converted automatically with GCQ2-63 types.
The utility model beneficial effect.
The direct current that the utility model inverter sends solar energy, becomes alternating current, is connected with power network, " i.e. hair is used, Remaining electricity online ", the preferential supply load of the electricity sent come out from inverter use, and unnecessary supplies electricity to be sent in power network.Pass through lithium Battery energy storage electricity, dispatch energy storage, K1, K2 by scheduling energy storage control, if user location realize step price when Wait(Peak valley ordinary telegram valency), 11 points to 5:00 AM at night, the electricity charge are very cheap, and paddy electricity should be no more than 3 maos, and K2 is closed, to electric power storage Pond is charged, and is full of.After, 5 points to 8 points, everybody starts electricity consumption, and electricity price is expensive daybreak in the morning, and solar energy is not very sufficient When, closed, sent the electricity in lithium battery in power network by combining inverter, at this time electricity price is expensive, Ke Yiduo by K1 Sell for money.
In order to ensure battery normal work, power network and solar energy all charge the utility model to it.
On the basis of distributed photovoltaic peasant household builds, distributed peasant household's energy storage is built.Each household fills 10kWh ternary lithium batteries Energy storage, equivalent to 13 pieces * 200Ah/3.6V series connection ternary lithium electricity 4 yuan/Ah of cost, each household puts into 10,000 yuan, according to 0.2 yuan/kWh Deposit paddy abandons electric 10 degree of electric 2 yuan of energy storage costs, and power network peak value energy storage is sold out, and 0.83+0.42 members=1.25 yuan/degree, receives daily Enter:12.5 yuan -2 yuan=10 yuan, energy storage in 1 year takes in 4320 yuan, 2.3 years energy storage investment payback times.
The utility model device can be controlled by cell phone application, equipment operates under wifi interconnection net states at home, U7 For wifi module, STC89C52 MCU drive triode Q1 by optocoupler PC817(Q2), carry out the folding K1 of control relay (K2).
Brief description of the drawings
The utility model is described further with reference to the accompanying drawings and detailed description.Scope of protection of the utility model It is not only limited to the statement of herein below.
Fig. 1 is the utility model schematic block circuit diagram.
Fig. 2 is the utility model scheduling circuit system schematic diagram.
Fig. 3 is the utility model charging and discharging lithium battery controller and lithium battery group partial circuit theory diagram.
Fig. 4 is the utility model charging and discharging lithium battery controller and lithium battery group partial circuit schematic diagram.
Fig. 5,6,7,8,9 are Fig. 4 each several part enlarged drawings.
A, B, C, D in Fig. 4 is corresponding with A, B, C, D in Fig. 3.
Embodiment
As illustrated, the utility model includes combining inverter, AC/DC Switching Power Supplies, charging and discharging lithium battery controller, lithium Battery pack, DC/AC inverters, dual power supply convert switch, scheduling system and photovoltaic module, the electric energy input of combining inverter automatically The electric energy output end mouth with photovoltaic module, lithium battery group are connected respectively for port, and the positive terminal of lithium battery group passes through forward diode Be connected with the electric energy electrode input end of combining inverter, the negative pole end of lithium battery group by relay K1 normal open switch with it is grid-connected inverse The electric energy negative input for becoming device is connected.
The electric energy output end of combining inverter converted automatically with power network, dual power supply respectively switch stand-by electric energy input, The electrical energy inputs of AC/DC Switching Power Supplies are connected, and the electrical energy inputs N-terminal of AC/DC Switching Power Supplies is opened by the way that relay K1 is normally opened Pass is connected with the electric energy output end N-terminal of combining inverter, the electrical energy inputs L ends of AC/DC Switching Power Supplies and combining inverter Electric energy output end L ends are connected;The control output end mouth of scheduling system respectively with relay K1 control input port and relay K2 control input port is connected.
The electric energy output end of AC/DC Switching Power Supplies is connected by charging and discharging lithium battery controller with lithium battery group, lithium battery Group is connected with the electrical energy inputs of DC/AC inverters, and electric energy output end and the dual power supply of DC/AC inverters convert switch automatically Conventional electrical energy inputs are connected, and dual power supply converts the load wiring end of switch automatically and family registers one's residence, and master on off is connected.
The combining inverter uses HP10000-148 types, and AC/DC Switching Power Supplies use S-120-48 type Switching Power Supplies, DC/AC inverters use 48-500 type inverters, and dual power supply converts switch and converts switch automatically using GCQ2-63 types automatically.
40 pin of the scheduling system including STC89C52 MCU, MCU respectively with first resistor one end, second resistance one end It is connected, the first resistor other end is connected with the first PC817 chip input anodes, the first PC817 chips input cathode and MCU 32 pin be connected, the output end colelctor electrode of the first PC817 chips is connected with PNP triode Q1 base stage, triode Q1 transmitting Control input port one end with the relay K1, the first diode anode are connected respectively for pole, the first diode cathode difference Be connected with relay K1 the control input port other end, 5V power supplys, triode Q1 colelctor electrode and the first PC817 chips it is defeated Go out to hold grounded emitter.
The second resistance other end is connected with the 2nd PC817 chip input anodes, the 2nd PC817 chips input cathode with MCU 22 pin are connected, and the output end colelctor electrode of the 2nd PC817 chips is connected with PNP triode Q2 base stage, triode Q2 hair Control input port one end with the relay K2, the second diode anode are connected emitter-base bandgap grading respectively, the second diode cathode point It is not connected with relay K2 the control input port other end, 5V power supplys, triode Q2 colelctor electrode and the 2nd PC817 chips Output end grounded emitter.
14,15 pin of the MCU are corresponding with ESP-07 chips U7 16,15 pin respectively to be connected, and U7 10 pin pass through the 3rd Resistance eutral grounding, U7 9 pin ground connection, U7 3 pin connect 3.3V power supplys by the 4th resistance, and U7 8 pin connect 3.3V power supplys.
The charging and discharging lithium battery controller negates part, the charging first via including charging signals control section, signal, filled Electric second tunnel, first switch part and second switch part, the lithium battery group include the first lithium battery part and the second lithium electricity Pond part, the control signal output mouth of charging signals control section respectively the control signal input mouth with the first via that charges, The control signal input mouth that signal negates part is connected, and signal negates control signal output mouth and the second tunnel of charging of part Control signal input mouth be connected.
The control signal output mouth of the charging first via is connected with the control signal input mouth of first switch part, and first The electrical energy inputs of switch sections are connected with AC/DC Switching Power Supply output cathodes end, the electric energy output end point of first switch part It is not connected with the first lithium battery part negative pole end, diode D25 negative electrodes, diode D25 plus earths, the first lithium battery part sun Positive terminal extremely respectively with AC/DC Switching Power Supply output negative poles end, lithium battery group is connected, the negative pole end ground connection of lithium battery group.
The control signal output mouth on the second tunnel that charges is connected with the control signal input mouth of second switch part, and second The electrical energy inputs of switch sections are connected with AC/DC Switching Power Supply output cathodes end, the electric energy output end point of second switch part It is not connected with the second lithium battery part negative pole end, diode D26 negative electrodes, diode D26 plus earths, the second lithium battery part sun Positive terminal extremely respectively with AC/DC Switching Power Supply output negative poles end, lithium battery group is connected.
10 pin of the charging signals control section including STM32F103C8T6 chips U1, U1 pass sequentially through resistance R76, Address sets connector P3 ground connection, and 1 pin of U1 13 pin respectively with electric capacity C9 one end, infrared receiver connector P2 is connected, electric capacity The C9 other ends are connected with ground wire, infrared receiver connector P2 2 pin, electric capacity C8 one end respectively, the electric capacity C8 other ends respectively with it is red Outer 3 pin, the 3.3V power supplys for receiving connector P2 is connected;U1 14 pin connect 3.3V power supplys, U1 15 pin by forward diode D7 3.3V power supplys are connect by forward diode D6, U1 16 pin connect 3.3V power supplys by forward diode D5, and U1 17 pin pass through just 3.3V power supplys are connect to diode D4.
U1 5 pin are connected with electric capacity C12 one end, crystal oscillator G1 one end respectively, the crystal oscillator G1 other ends 6 pin, the electricity with U1 respectively Hold C13 one end to be connected, the electric capacity C13 other ends by resistance R11 respectively with the electric capacity C12 other ends, ground wire, MAX812 chips D14 1 pin be connected, D14 4 pin connect 3.3V power supplys, and D14 2 pin connect U1 7 pin by resistance R15, U1 24 pin respectively with inductance L1 one end, U1 36 pin, U1 48 pin, inductance L2 one end, electric capacity C14 one end, electric capacity C15 one end, electric capacity C17 one end are connected, Another termination 3.3V power supplys of inductance L1,9 pin of the inductance L2 other ends respectively with electric capacity C16 one end, electric capacity C18 one end, U1 are connected, The electric capacity C14 other ends, the electric capacity C15 other ends, the electric capacity C17 other ends, the electric capacity C16 other ends, electric capacity C18 other ends ground connection.
U1 18 pin are connected with diode D24 negative electrodes, resistance R75 one end, electric capacity C33 one end, resistance R74 one end respectively, Diode D24 anodes, the resistance R75 other ends, electric capacity C33 other ends ground connection;The resistance R74 other ends respectively with lithium battery group just Extremely, diode D3 anodes are connected, diode D3 negative electrodes respectively with electric capacity C4 positive poles, electric capacity C5 one end, HT7550-5 chips D1- 13 pin, HT7550-5 chips D1 3 pin are connected, electric capacity C4 negative poles, electric capacity C5 other ends ground connection, D1-1 1 pin respectively with D1 1 pin, voltage-regulator diode D10 negative electrodes, resistance R1 one end, electric capacity C7 positive poles be connected, voltage-regulator diode D10 anodes, electric capacity C7 are born Pole is grounded, and 2 pin with D1, D1-1 2 pin, two-way transient supression diode VP1 one end, electric capacity C6 be just respectively for the resistance R1 other ends Pole, electric capacity C2 one end, power supply VCC, LM1117MPX-3.3 chip D2 3 pin are connected, and two-way transient supression diode VP1 is another End, electric capacity C6 negative poles, the electric capacity C2 other ends, D2 1 pin ground connection, D2 2 pin respectively with 3.3V power supplys, electric capacity C1 positive poles, C3 mono- End is connected, electric capacity C1 negative poles, C3 other ends ground connection.
The signal, which negates part, includes NPN triode VT17, and triode VT17 base stage passes through the 45 of resistance R17 and U1 Pin is connected, and triode VT17 grounded emitters, triode VT17 colelctor electrodes meet power supply VCC by resistance R21.
The first switch part includes N-channel enhancement mode FET Q2, Q3, Q5, Q6, FET Q2 source electrode with Between drain electrode, between FET Q3 source electrode and drain electrode, between FET Q5 source electrode and drain electrode, FET Q6 source Forward zener diode is respectively connected between pole and drain electrode.
The charging first via includes resistance R35, and resistance R35 one end is connected with U1 45 pin, the resistance R35 other ends and NPN tri- Pole pipe VT5 base stages are connected, triode VT5 grounded emitters, triode VT5 colelctor electrodes by resistance R22 respectively with resistance R18 mono- End, PNP triode VT2 base stages be connected, triode VT2 emitter stages respectively with the resistance R18 other ends, power supply VCC, resistance R19 mono- End, NPN triode VT1 colelctor electrodes be connected, triode VT1 base stages respectively with the resistance R19 other ends, NPN triode VT3 current collections Pole, PNP triode VT4 base stages are connected, and triode VT3 base stages are connected by resistance R34 with U1 30 pin, triode VT3 transmittings Pole is connected with ground wire, triode VT4 colelctor electrodes, resistance R36 one end respectively, and triode VT4 emitter stages are sent out with triode VT1 respectively Emitter-base bandgap grading, the resistance R36 other ends, resistance R50 one end, resistance R51 one end are connected, the grid of the resistance R50 other ends and FET Q3 Extremely it is connected, the resistance R51 other ends are connected with FET Q6 grid, and FET Q6 source electrode is respectively with FET Q3's Source electrode, resistance R55 one end are connected, the resistance R55 other ends respectively with diode D20 anodes, resistance R52 one end, electric capacity C28 mono- End, the first lithium battery part negative pole end are connected;Diode D20 negative electrodes respectively with resistance R52 one end, C28 one end, resistance R44 mono- End, resistance R8 one end are connected, and the resistance R44 other ends are connected with resistance R42 one end, diode D21 anodes respectively, and resistance R42 is another One end is connected with the first lithium battery part positive terminal.
The resistance R8 other ends are connected with electric capacity C10 one end, resistance R12 one end respectively, electric capacity C10 other ends ground connection, resistance 3 pin of the R12 other ends respectively with resistance R10 one end, LM258AD chips U2A are connected, the resistance R10 other ends respectively with resistance R2 One end, resistance R3 one end are connected, resistance R3 other ends ground connection, another termination power VCC of resistance R2;U2A 2 pin respectively with resistance R9 one end, resistance R13 one end, electric capacity C20 one end are connected, resistance R9 other ends ground connection;The electric capacity C20 other ends respectively with resistance The R13 other ends, U2A 1 pin, resistance R14 one end are connected, and U2A 8 pin are connected with power supply VCC, electric capacity C25 one end respectively, electric capacity The C25 other ends are grounded;14 pin of the resistance R14 other ends respectively with resistance R16 one end, electric capacity C23 one end, U1 are connected, resistance R16 The other end, electric capacity C23 other ends ground connection.
FET Q6 the drain electrode drain electrode with FET Q3, FET Q2 drain electrode, FET Q5 respectively Drain electrode is connected, FET Q5 grid by resistance R48 respectively with resistance R47 one end, resistance R49 one end, NPN triode VT7 emitter stages, PNP triode VT11 emitter stages are connected, and the resistance R47 other ends are connected with FET Q2 grid, resistance R49 The other end respectively the source electrode with FET Q2, FET Q5 source electrode, triode VT11 colelctor electrodes, diode D21 negative electrodes, NPN triode VT9 emitter stages, resistance R54 one end, diode D17 anodes, electric capacity C26 negative poles, two-way transient supression diode VP2 one end, AC/DC Switching Power Supply output cathodes end are connected, triode VT11 base stages respectively with triode VT7 base stages, resistance R41 One end, triode VT9 colelctor electrodes are connected, the resistance R41 other ends respectively with triode VT7 colelctor electrodes, diode D17 negative electrodes, electricity Hold C26 positive poles, resistance R37 one end, resistance R43 one end are connected, the resistance R43 other ends respectively with the resistance R37 other ends, diode D16 negative electrodes are connected, diode D16 anodes and the two-way transient supression diode VP2 other ends, the first lithium battery part positive terminal phase Even;Triode VT9 base stages are connected with the resistance R54 other ends, resistance R23 one end respectively, and the resistance R23 other ends pass through reverse two pole Pipe D13 is connected with triode VT2 colelctor electrodes.
The second switch part includes N-channel enhancement mode FET Q10, Q12, Q9, Q11, FET Q10 source Between pole and drain electrode, between FET Q12 source electrode and drain electrode, between FET Q9 source electrode and drain electrode, FET Forward zener diode is respectively connected between Q11 source electrode and drain electrode.
Second tunnel of charging includes resistance R25, and resistance R25 one end is connected with triode VT17 colelctor electrodes, the resistance R25 other ends It is connected with NPN triode VT18 base stages, triode VT18 grounded emitters, triode VT18 colelctor electrodes are distinguished by resistance R30 Be connected with resistance R27 one end, PNP triode VT19 base stages, triode VT19 emitter stages respectively with the resistance R27 other ends, power supply VCC, resistance R63 one end, NPN triode VT24 colelctor electrodes are connected, triode VT24 base stages respectively with the resistance R63 other ends, NPN Triode VT21 colelctor electrodes, PNP triode VT25 base stages are connected, the 30 pin phases that triode VT21 base stages pass through resistance 61 and U1 Even, triode VT21 emitter stages are connected with ground wire, triode VT25 colelctor electrodes, resistance R68 one end respectively, triode VT25 transmittings Pole is connected with triode VT24 emitter stages, the resistance R68 other ends, resistance R69 one end, resistance R70 one end respectively, and resistance R69 is another One end is connected with FET Q12 grid, and the resistance R70 other ends are connected with FET Q11 grid, FET Q11 Source electrode the source electrode with FET Q12, resistance R71 one end are connected respectively, the resistance R71 other ends are born with the second lithium battery part It is extreme to be connected.
FET Q11 the drain drain electrode with FET Q12, FET Q10 drain electrode, FET Q9 respectively Drain electrode be connected, FET Q10 grid by resistance R66 respectively with resistance R65 one end, resistance R67 one end, the poles of NPN tri- Pipe VT23 emitter stages, PNP triode VT22 emitter stages are connected, and the resistance R67 other ends are connected with FET Q9 grid, resistance The R65 other ends source electrode with FET Q10, FET Q9 source electrode, triode VT22 colelctor electrodes, NPN triode respectively VT20 emitter stages, resistance R59 one end, diode D28 anodes, electric capacity C27 negative poles, two-way transient supression diode VP3 one end, AC/DC Switching Power Supply output cathodes end is connected, triode VT23 base stages respectively with triode VT22 base stages, resistance R62 one end, three Pole pipe VT20 colelctor electrodes are connected, the resistance R62 other ends respectively with triode VT23 colelctor electrodes, diode D28 negative electrodes, electric capacity C27 Positive pole, resistance R31 one end, resistance R33 one end are connected, and the resistance R33 other ends are cloudy with the resistance R31 other ends, diode D27 respectively Extremely it is connected, diode D27 anodes are connected with the two-way transient supression diode VP3 other ends, the first lithium battery part positive terminal;Three Pole pipe VT20 base stages are connected with the resistance R59 other ends, resistance R45 one end respectively, and the resistance R45 other ends pass through backward dioded D15 is connected with triode VT19 colelctor electrodes.
As shown in Fig. 4,5,7, PWM2 signals, two groups(The charging first via, the second tunnel of charging)Be it is common, it control Metal-oxide-semiconductor circuit(Q3/Q6, Q11/Q12)Equivalent to total lock of charging, if it close if, no matter PWM1 what, all can not Charging.
Q2/Q5 and Q9/Q10 working condition is on the contrary, because be two signals control by opposite in phase.
PWM1 is exactly main control signal, but because being that battery is divided into two groups, is charged respectively under a pwm signal, So there is control signal all the way to need " triode negates ".
The electricity that solar panel is sent is sent to national grid by combining inverter, because the power consumption at night is few, National grid, which has, much abandons electricity, mostly from thermal power plant, wind energy, nuclear power station etc..So after ten one points of night, can pass through Mobile phone app sends instructions to the utility model scheduling system(System is connected with the wifi of family in itself), allow it to close K2, make These electric energy that should be slatterned are stored into lithium battery by AC/DC DC voltage-stabilizings Switching Power Supply and charging and discharging lithium battery controller In group.
When power consumption high period on daytime, such as 9 points -16 points, then sent instructions by mobile phone app to scheduling system, closed Combination switch K1, lithium battery group is allowed to be powered also by combining inverter to national grid, due to before using the price and hair for abandoning electricity The price of electricity has gap, so, user can therefrom benefit.For example, combining inverter capacity is 8000W, if lithium is electric Pond can send the electricity of 4 hours, then be exactly 32 degree of electricity.Install that the family of this system is more, and income is more obvious, because can be with It is uniformly controlled the charge and discharge for abandoning electricity.
If in peak of power consumption on daytime, family's also electricity consumption, then double power supply automatic transfer switch then keeps normal condition, The electric energy issued using lithium battery group by ordinary inverter, when abandoning electric more at night, automatic change-over can redirect, Standby zero line live wire is jumped to from conventional zero line live wire, seamless electric power switching is realized, supplies household electricity.
It is understood that above with respect to specific descriptions of the present utility model, it is merely to illustrate the utility model and is not The technical scheme described by the utility model embodiment is limited to, it will be understood by those within the art that, still can be with The utility model is modified or equivalent substitution, to reach identical technique effect;As long as satisfaction uses needs, all in this reality Within new protection domain.

Claims (2)

1. a kind of photovoltaic dispatches power supply optimization system, including the control of combining inverter, AC/DC Switching Power Supplies, charging and discharging lithium battery Device, lithium battery group, DC/AC inverters, dual power supply convert switch, scheduling system and photovoltaic module automatically, it is characterised in that grid-connected The electric energy output end mouth with photovoltaic module, lithium battery group are connected the power input of inverter respectively, the positive pole of lithium battery group End is connected by forward diode with the electric energy electrode input end of combining inverter, and the negative pole end of lithium battery group passes through relay K1 Normal open switch is connected with the electric energy negative input of combining inverter;
The electric energy output end of combining inverter converts stand-by electric energy input, the AC/DC of switch automatically with power network, dual power supply respectively The electrical energy inputs of Switching Power Supply are connected, the electrical energy inputs N-terminals of AC/DC Switching Power Supplies by relay K1 normal open switch with simultaneously The electric energy output end N-terminal of net inverter is connected, and the electrical energy inputs L ends of AC/DC Switching Power Supplies and the electric energy of combining inverter are defeated Go out to hold L ends to be connected;The control output end mouth of scheduling system respectively with relay K1 control input port and relay K2 control Input port processed is connected;
The electric energy output end of AC/DC Switching Power Supplies is connected by charging and discharging lithium battery controller with lithium battery group, lithium battery group with The electrical energy inputs of DC/AC inverters are connected, and electric energy output end and the dual power supply of DC/AC inverters convert the conventional of switch automatically Electrical energy inputs are connected, and dual power supply converts the load wiring end of switch automatically and family registers one's residence, and master on off is connected;
40 pin of the scheduling system including STC89C52 MCU, MCU respectively with first resistor one end, second resistance one end phase Even, the first resistor other end is connected with the first PC817 chip input anodes, the first PC817 chips input cathode and MCU's 32 pin are connected, and the output end colelctor electrode of the first PC817 chips is connected with PNP triode Q1 base stage, triode Q1 emitter stage Control input port one end with the relay K1, the first diode anode are connected respectively, the first diode cathode respectively with The relay K1 control input port other end, 5V power supplys is connected, the output of triode Q1 colelctor electrode and the first PC817 chips Hold grounded emitter;
The second resistance other end is connected with the 2nd PC817 chip input anodes, the 2nd PC817 chips input cathode and MCU 22 pin be connected, the output end colelctor electrode of the 2nd PC817 chips is connected with PNP triode Q2 base stage, triode Q2 transmitting Control input port one end with the relay K2, the second diode anode are connected respectively for pole, the second diode cathode difference Be connected with relay K2 the control input port other end, 5V power supplys, triode Q2 colelctor electrode and the 2nd PC817 chips it is defeated Go out to hold grounded emitter;
14,15 pin of the MCU are corresponding with ESP-07 chips U7 16,15 pin respectively to be connected, and U7 10 pin pass through 3rd resistor Ground connection, U7 9 pin ground connection, U7 3 pin connect 3.3V power supplys by the 4th resistance, and U7 8 pin connect 3.3V power supplys.
2. a kind of photovoltaic scheduling power supply optimization system according to claim 1, it is characterised in that the combining inverter uses HP10000-148 types, AC/DC Switching Power Supplies use S-120-48 type Switching Power Supplies, and DC/AC inverters use 48-500 type inversions Device, dual power supply convert switch and convert switch automatically using GCQ2-63 types automatically.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107196330A (en) * 2017-05-25 2017-09-22 河南迎基太阳能科技有限公司 Can remote monitoring solar optimizing scheduling equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107196330A (en) * 2017-05-25 2017-09-22 河南迎基太阳能科技有限公司 Can remote monitoring solar optimizing scheduling equipment

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