CN206922708U - Photovoltaic generating system based on control relay circuit - Google Patents

Photovoltaic generating system based on control relay circuit Download PDF

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Publication number
CN206922708U
CN206922708U CN201720241922.0U CN201720241922U CN206922708U CN 206922708 U CN206922708 U CN 206922708U CN 201720241922 U CN201720241922 U CN 201720241922U CN 206922708 U CN206922708 U CN 206922708U
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resistance
triode
control relay
generating system
pin
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CN201720241922.0U
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高翔
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Yunnan Tongfu New Energy Technology Co Ltd
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Yunnan Tongfu New Energy Technology Co Ltd
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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

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Abstract

The utility model discloses a kind of photovoltaic generating system based on control relay circuit, including photovoltaic array, booster circuit, control relay circuit, inverter bridge and the threephase load being sequentially connected；Control relay circuit includes darlington array pipe, relay, the first triode, the second triode, the first diode, the second diode, the 3rd diode, inductance, the first electric capacity, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first power supply and second source；First input pin of darlington array pipe to the 7th input pin is all connected with first port, and the first output pin of the darlington array pipe, the second output pin, the 3rd output pin, the 4th output pin, the 5th output pin, the one end of the 6th output pin and the 7th output pin with the coil of relay are connected.Implement the photovoltaic generating system of the present utility model based on control relay circuit, have the advantages that：The safety and reliability of circuit is higher.

Description

Photovoltaic generating system based on control relay circuit
Technical field
It the utility model is related to field of photovoltaic power generation, more particularly to a kind of photovoltaic generation system based on control relay circuit System.
Background technology
Photovoltaic generating system (PVSystem) is the generating system that electric energy is directly converted solar energy into using solar cell System, what is utilized is photovoltaic effect, including photovoltaic module and matching component (BOS).Photovoltaic generating system is divided into the independent sun Can photovoltaic generating system, grid-connected solar photovoltaic generation system and distributed solar energy photovoltaic generating system.Its critical piece bag Include solar cell, battery, controller and inverter.It is characterized in that reliability is high, service life is long, free from environmental pollution, energy Independent Power Generation and can is incorporated into the power networks, and is favored by every industry or trade's tissue, has vast potential for future development.As country is to cleaning Energy industry is vigorously supported, and China's photovoltaic generating system industry will welcome development peak period.Existing photovoltaic generating system by In lacking corresponding circuit protection function, cause the safety and reliability of circuit relatively low.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, there is provided a kind of circuit The higher photovoltaic generating system based on control relay circuit of safety and reliability.
Technical scheme is used by the utility model solves its technical problem：Construction one kind is based on control relay circuit Photovoltaic generating system, including the photovoltaic array, booster circuit, control relay circuit, inverter bridge and the three-phase that are sequentially connected bear Carry；The control relay circuit includes darlington array pipe, relay, the first triode, the second triode, the one or two pole Pipe, the second diode, the 3rd diode, inductance, the first electric capacity, first resistor, second resistance, 3rd resistor, the 4th resistance, Five resistance, the first power supply and second source；
First input pin of the darlington array pipe, the second input pin, the 3rd input pin, the 4th input are drawn Pin, the 5th input pin, the 6th input pin and the 7th input pin are all connected with first port, and the of the darlington array pipe One output pin, the second output pin, the 3rd output pin, the 4th output pin, the 5th output pin, the 6th output pin and The one end of 7th output pin with the coil of the relay is connected, the 8th pin ground connection of the darlington array pipe, institute The 9th pin for stating darlington array pipe connects the second source, and one end of the coil of the relay is also with the described 3rd 2 The anode connection of pole pipe, the other end of the coil of the relay negative electrode with first diode, the second diode respectively Negative electrode and the 5th resistance one end connection, the anode of first diode and the anode of the second diode are with described first Power supply connects；
The other end of 5th resistance is connected with the colelctor electrode of first triode, the base stage of first triode It is connected respectively with one end of the first resistor and one end of second resistance by first electric capacity, first triode Emitter stage is connected with one end of the 4th resistance, the other end of the other end of the first resistor and the 4th resistance with it is described Second source is connected, and the colelctor electrode of second triode is connected with the other end of the second resistance, second triode Base stage be connected with one end of the 3rd resistor, the emitter stage of the other end of the 3rd resistor and the second triode connects Ground, one end connection output port of the contact switch of the relay, the other end of the contact switch of the relay pass through institute State output port described in inductance connection.
In the photovoltaic generating system described in the utility model based on control relay circuit, in addition to the 6th resistance, One end of 6th resistance is connected with the emitter stage of second triode, the other end ground connection of the 6th resistance.
In the photovoltaic generating system described in the utility model based on control relay circuit, in addition to the 7th resistance, One end of 7th resistance is connected with the base stage of second triode, the other end of the 7th resistance and the described 3rd electricity One end connection of resistance.
In the photovoltaic generating system described in the utility model based on control relay circuit, in addition to the 8th resistance, One end of 8th resistance is connected with the other end of the 7th resistance, the other end connection described second of the 8th resistance Port.
In the photovoltaic generating system described in the utility model based on control relay circuit, in addition to the 9th resistance, One end of 9th resistance is connected with the first output pin of the darlington array pipe, the other end of the 9th resistance with One end connection of the coil of the relay.
In the photovoltaic generating system described in the utility model based on control relay circuit, in addition to the tenth resistance, One end of tenth resistance connects the output port, the other end of the tenth resistance and the contact switch of the relay One end connection.
In the photovoltaic generating system described in the utility model based on control relay circuit, first triode is PNP type triode, second triode are NPN type triode.
In the photovoltaic generating system described in the utility model based on control relay circuit, first power supply provides Voltage be 5V, the voltage that the second source provides is 12V.
Implement the photovoltaic generating system of the present utility model based on control relay circuit, have the advantages that：By In provided with photovoltaic array, booster circuit, control relay circuit, inverter bridge and threephase load；Control relay circuit includes reaching Islington array tube, relay, the first triode, the second triode, the first diode, the second diode, the 3rd diode, electricity Sense, the first electric capacity, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first power supply and second source, First electric capacity is used to prevent the interference between the first triode Q1 and the second triode Q2, and the 4th resistance and the 5th resistance are used to Overcurrent protection, so the safety and reliability of circuit is higher.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation in the photovoltaic generating system one embodiment of the utility model based on control relay circuit Figure；
Fig. 2 is the circuit theory diagrams of the embodiment repeat circuit control circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.
In photovoltaic generating system embodiment of the utility model based on control relay circuit, Control should be based on The circuit theory diagrams of the photovoltaic generating system of circuit are as shown in Figure 1., should the photovoltaic generation based on control relay circuit in Fig. 1 System includes photovoltaic array 1, booster circuit 2, control relay circuit 3, inverter bridge 4 and the threephase load 5 being sequentially connected.
Fig. 2 is the circuit theory diagrams of the present embodiment repeat circuit control circuit, and in Fig. 2, the control relay circuit 3 includes Darlington array pipe U1, relay, the first triode Q1, the second triode Q2, the first diode D1, the second diode D2, Three diode D3, inductance L1, the first electric capacity C1, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th Resistance R5, the first power vd D and second source VCC.Wherein, darlington array pipe U1 the first input pin, the second input are drawn Pin, the 3rd input pin, the 4th input pin, the 5th input pin, the 6th input pin and the 7th input pin are all connected with It is Single port RLY1_DRV, darlington array pipe U1 the first output pin, the second output pin, the 3rd output pin, the 4th defeated Go out the one end of pin, the 5th output pin, the 6th output pin and the 7th output pin with the coil RELAY of relay to connect Connect, darlington array pipe U1 the 8th pin ground connection GND, darlington array pipe U1 the 9th pin connection second source VCC, after Anode of the coil RELAY of the electrical equipment one end also with the 3rd diode D3 is connected, the coil RELAY of relay other end difference Negative electrode, the second diode D2 negative electrode and the 5th resistance D5 one end with the first diode D1 are connected, the first diode D1's Anode and the second diode D2 anode are connected with the first power vd D.
It is noted that the voltage that the first power vd D is provided is 5V, the voltage that second source VCC is provided is 12V.When So, under the certain situation of the present embodiment, the voltage that the first power vd D and second source VCC are provided can also be other values.
In the present embodiment, the 5th resistance R5 other end is connected with the first triode Q1 colelctor electrode, the first triode Q1 Base stage be connected respectively with first resistor R1 one end and second resistance R2 one end by the first electric capacity C1, the first triode Q1 Emitter stage be connected with the 4th resistance R4 one end, the first resistor R1 other end and the 4th resistance R4 other end is with second Power supply VCC connections, the second triode Q2 colelctor electrode are connected with the second resistance R2 other end, the second triode Q2 base stage with 3rd resistor R3 one end connection, the 3rd resistor R3 other end and the second triode Q2 emitter stage are grounded, relay Contact switch K1 one end connection output port, the contact switch K1 of the relay other end pass through inductance L1 connection output ports PORT。
Above-mentioned first electric capacity C1 is coupled capacitor, dry between the first triode Q1 and the second triode Q3 for preventing Disturb, the 4th resistance R5 and the 5th resistance R5 are current-limiting resistance, and the 4th resistance R4 is used for where the emitter stage to the first triode Q1 Branch road carry out overcurrent protection, the 5th resistance R5 be used for where the first triode Q1 colelctor electrode branch road carry out excessively stream guarantor Shield, so the safety and reliability of circuit is higher.
It is noted that in the present embodiment, the first triode Q1 is PNP type triode, and the second triode Q2 is NPN type Triode, certainly, under the certain situation of the present embodiment, the first triode Q1 can also be NPN type triode, the second triode Q2 can also be PNP type triode, but at this moment the structure of circuit also will accordingly change.
In the present embodiment, the photovoltaic generating system based on control relay circuit also includes the 6th resistance R6, the 6th resistance R6 one end is connected with the second triode Q2 emitter stage, the 6th resistance R6 other end ground connection.6th resistance R6 is current limliting electricity Resistance, overcurrent protection is carried out for the branch road where the emitter stage to the second triode Q2, to further enhance the security of circuit And reliability.
In the present embodiment, being somebody's turn to do the photovoltaic generating system based on control relay circuit also includes the 7th resistance R7, the 7th electricity Resistance R7 one end is connected with the second triode Q2 base stage, and the 7th resistance R7 other end is connected with 3rd resistor R3 one end. 7th resistance R7 is current-limiting resistance, overcurrent protection is carried out for the branch road where the base stage to the second triode Q2, more to enter one The safety and reliability of step enhancing circuit.
In the present embodiment, being somebody's turn to do the photovoltaic generating system based on control relay circuit also includes the 8th resistance R8, the 8th electricity Resistance R8 one end is connected with the 7th resistance R7 other end, the 8th resistance R8 other end connection second port RLY1_ DRVPOWER.8th resistance R8 is current-limiting resistance, for further further to the branch road where the second triode Q2 base stage Carry out overcurrent protection.
In the present embodiment, being somebody's turn to do the photovoltaic generating system based on control relay circuit also includes the 9th resistance R9, the 9th electricity Resistance R9 one end is connected with darlington array pipe U1 the first output pin, the 9th resistance R9 other end and the coil of relay RELAY one end connection.9th resistance R9 is current-limiting resistance, is carried out for the branch road where the coil RELAY to relay Stream protection.
In the present embodiment, being somebody's turn to do the photovoltaic generating system based on control relay circuit also includes the tenth resistance R10, the tenth electricity Hinder R10 one end connection output port PORT, the tenth resistance R10 other end and the contact switch K1 of relay one end company Connect.Tenth resistance R10 is current-limiting resistance, and overcurrent protection is carried out for the branch road where the contact switch K1 to relay.
In a word, in the present embodiment, because the photovoltaic generating system based on control relay circuit is provided with coupled capacitor And current-limiting resistance, so the safety and reliability of circuit is higher.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in Protection domain within.

Claims (8)

  1. A kind of 1. photovoltaic generating system based on control relay circuit, it is characterised in that including be sequentially connected photovoltaic array, Booster circuit, control relay circuit, inverter bridge and threephase load；The control relay circuit include darlington array pipe, Relay, the first triode, the second triode, the first diode, the second diode, the 3rd diode, inductance, the first electric capacity, First resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first power supply and second source；
    First input pin of the darlington array pipe, the second input pin, the 3rd input pin, the 4th input pin, Five input pins, the 6th input pin and the 7th input pin are all connected with first port, and the first of the darlington array pipe is defeated Go out pin, the second output pin, the 3rd output pin, the 4th output pin, the 5th output pin, the 6th output pin and the 7th The one end of output pin with the coil of the relay is connected, the 8th pin ground connection of the darlington array pipe, described to reach 9th pin of Islington array tube connects the second source, one end of the coil of the relay also with the 3rd diode Anode connection, the moon of the other end of the coil of the relay negative electrode with first diode, the second diode respectively Pole connects with one end of the 5th resistance, the anode of first diode and the anode of the second diode with first power supply Connection；
    The other end of 5th resistance is connected with the colelctor electrode of first triode, and the base stage of first triode passes through First electric capacity is connected with one end of the first resistor and one end of second resistance respectively, the transmitting of first triode Pole is connected with one end of the 4th resistance, and the other end of the other end of the first resistor and the 4th resistance is with described second Power supply is connected, and the colelctor electrode of second triode is connected with the other end of the second resistance, the base of second triode Pole is connected with one end of the 3rd resistor, and the emitter stage of the other end of the 3rd resistor and the second triode is grounded, institute One end connection output port of the contact switch of relay is stated, the other end of the contact switch of the relay passes through the inductance Connect the output port.
  2. 2. the photovoltaic generating system according to claim 1 based on control relay circuit, it is characterised in that also including Six resistance, one end of the 6th resistance are connected with the emitter stage of second triode, another termination of the 6th resistance Ground.
  3. 3. the photovoltaic generating system according to claim 2 based on control relay circuit, it is characterised in that also including Seven resistance, one end of the 7th resistance are connected with the base stage of second triode, the other end of the 7th resistance and institute State one end connection of 3rd resistor.
  4. 4. the photovoltaic generating system according to claim 3 based on control relay circuit, it is characterised in that also including Eight resistance, one end of the 8th resistance are connected with the other end of the 7th resistance, the other end connection of the 8th resistance Second port.
  5. 5. the photovoltaic generating system based on control relay circuit according to Claims 1-4 any one, its feature exist In, in addition to the 9th resistance, one end of the 9th resistance is connected with the first output pin of the darlington array pipe, described The other end of 9th resistance is connected with one end of the coil of the relay.
  6. 6. the photovoltaic generating system according to claim 5 based on control relay circuit, it is characterised in that also including Ten resistance, one end of the tenth resistance connect the output port, the other end and the relay of the tenth resistance One end connection of contact switch.
  7. 7. the photovoltaic generating system based on control relay circuit according to Claims 1-4 any one, its feature exist In first triode is PNP type triode, and second triode is NPN type triode.
  8. 8. the photovoltaic generating system based on control relay circuit according to Claims 1-4 any one, its feature exist In the voltage that first power supply provides is 5V, and the voltage that the second source provides is 12V.
CN201720241922.0U 2017-03-14 2017-03-14 Photovoltaic generating system based on control relay circuit Active CN206922708U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720241922.0U CN206922708U (en) 2017-03-14 2017-03-14 Photovoltaic generating system based on control relay circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720241922.0U CN206922708U (en) 2017-03-14 2017-03-14 Photovoltaic generating system based on control relay circuit

Publications (1)

Publication Number Publication Date
CN206922708U true CN206922708U (en) 2018-01-23

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Application Number Title Priority Date Filing Date
CN201720241922.0U Active CN206922708U (en) 2017-03-14 2017-03-14 Photovoltaic generating system based on control relay circuit

Country Status (1)

Country Link
CN (1) CN206922708U (en)

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