CN206673618U - Photovoltaic generating system charge-discharge circuit with voltage regulation filtering - Google Patents

Photovoltaic generating system charge-discharge circuit with voltage regulation filtering Download PDF

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Publication number
CN206673618U
CN206673618U CN201720241936.2U CN201720241936U CN206673618U CN 206673618 U CN206673618 U CN 206673618U CN 201720241936 U CN201720241936 U CN 201720241936U CN 206673618 U CN206673618 U CN 206673618U
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electric capacity
resistance
circuit
resistor
stabilizing
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CN201720241936.2U
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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
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

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Abstract

The utility model discloses a kind of photovoltaic generating system charge-discharge circuit with voltage regulation filtering, including solar cell module, filter circuit of pressure-stabilizing, DC/DC translation circuits, load, multiple overcharge protection circuits, multiple two-way DC/DC circuits and multiple batteries；Filter circuit of pressure-stabilizing includes triode, voltage-regulator diode, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the first inductance, the second inductance, first resistor, second resistance and 3rd resistor, one end of first resistor and one end of second resistance are all connected with the positive pole of voltage input end, one end of the other end of first resistor one end with 3rd resistor, the negative pole of voltage-regulator diode and the first electric capacity respectively is connected, and the other end of 3rd resistor and the base stage of triode connect.Implement the photovoltaic generating system charge-discharge circuit of the present utility model with voltage regulation filtering, have the advantages that：The safety and reliability of circuit is higher.

Description

Photovoltaic generating system charge-discharge circuit with voltage regulation filtering
Technical field
It the utility model is related to field of photovoltaic power generation, more particularly to a kind of photovoltaic generating system charge and discharge with voltage regulation filtering Circuit.
Background technology
Solar power system is made up of solar battery group, controller for solar, battery (group).As out-put supply is Alternating current 220V or 110V, it is also necessary to configure inverter.In independent solar electricity generation system, in order to reduce cost, improve efficiency And reliability, photovoltaic cell Maximum Power Output should be made, make the correct discharge and recharge of battery again, while will also be to greatest extent Utilize institute's generating energy.The charge-discharge circuit of existing solar power system causes due to lacking corresponding circuit protection function The safety and reliability of circuit is 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 charge-discharge circuit with voltage regulation filtering of safety and reliability.
Technical scheme is used by the utility model solves its technical problem：Construct a kind of photovoltaic with voltage regulation filtering Electricity generation system charge-discharge circuit, including solar cell module, filter circuit of pressure-stabilizing, DC/DC translation circuits, load, multiple mistakes Fill protection circuit, multiple two-way DC/DC circuits and multiple batteries, the solar components by the filter circuit of pressure-stabilizing with One end connection of the DC/DC translation circuits, the other ends of the DC/DC translation circuits is respectively with the load and multiple overcharging Protection circuit connects, and each overcharge protection circuit passes through the two-way DC/DC circuits and a battery Connection；
The filter circuit of pressure-stabilizing includes triode, voltage-regulator diode, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th Electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the first inductance, the second inductance, first resistor, second resistance and the 3rd electricity Resistance, one end of the first resistor and one end of second resistance are all connected with the positive pole of voltage input end, the first resistor it is another One end of one end one end with the 3rd resistor, the negative pole of voltage-regulator diode and the first electric capacity respectively is connected, the 3rd electricity The other end of resistance is connected with the base stage of the triode, and the other end of the positive pole of the voltage-regulator diode and the first electric capacity is and institute The negative pole connection of voltage input end is stated, the other end of the second resistance is connected with the colelctor electrode of the triode, three pole The emitter stage of pipe is connected with one end, one end of the 4th electric capacity and one end of the first inductance of second electric capacity respectively, and described The other end of one inductance is connected with one end, one end of the 6th electric capacity and one end of the 7th electric capacity of second inductance respectively, institute The other end of the second electric capacity, the other end of the 4th electric capacity, the other end of the 6th electric capacity and the other end of the 7th electric capacity is stated to be all connected with And be grounded, the other end with first electric capacity, one end of the 3rd electric capacity and the 5th are electric respectively for the other end of second inductance One end connection of appearance, the other end of the 3rd electric capacity and the other end of the 5th electric capacity are grounded.
In the photovoltaic generating system charge-discharge circuit described in the utility model with voltage regulation filtering, the voltage regulation filtering Circuit also includes the 4th resistance, and the emitter stage of the triode is connected by one end of the 4th resistance and second electric capacity Connect.
In the photovoltaic generating system charge-discharge circuit described in the utility model with voltage regulation filtering, the voltage regulation filtering Circuit also includes the 5th resistance, and one end of the 5th resistance is connected with the other end of the 5th electric capacity, the 5th resistance The other end ground connection.
In the photovoltaic generating system charge-discharge circuit described in the utility model with voltage regulation filtering, the voltage regulation filtering Circuit also includes the 6th resistance, and one end of the 6th resistance is connected with the other end of first inductance, the 6th resistance The other end be connected with one end of second inductance.
In the photovoltaic generating system charge-discharge circuit described in the utility model with voltage regulation filtering, the voltage regulation filtering Circuit also includes the 7th resistance, and one end of the 7th resistance is connected with the other end of the 6th electric capacity, the 7th resistance The other end is grounded.
In the photovoltaic generating system charge-discharge circuit described in the utility model with voltage regulation filtering, the voltage regulation filtering Circuit also includes the 8th resistance, and one end of the 8th resistance is connected with the other end of the 7th electric capacity, the 8th resistance The other end ground connection.
In the photovoltaic generating system charge-discharge circuit described in the utility model with voltage regulation filtering, the triode is NPN type triode.
Implement the photovoltaic generating system charge-discharge circuit of the present utility model with voltage regulation filtering, have below beneficial to effect Fruit：Due to provided with solar cell module, filter circuit of pressure-stabilizing, DC/DC translation circuits, load, multiple overcharge protection circuits, more Individual two-way DC/DC circuits and multiple batteries, filter circuit of pressure-stabilizing include triode, voltage-regulator diode, the first electric capacity, the second electricity Appearance, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the first inductance, the second inductance, first resistor, Two resistance and 3rd resistor, second resistance and 3rd resistor are used to carry out current-limiting protection, so the security of circuit and reliable Property 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 has the structure in photovoltaic generating system charge-discharge circuit one embodiment of voltage regulation filtering for the utility model Schematic diagram；
Fig. 2 is the circuit theory diagrams of filter circuit of pressure-stabilizing in the embodiment.
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 the utility model has the photovoltaic generating system charge-discharge circuit embodiment of voltage regulation filtering, it has voltage stabilizing filter The structural representation of the photovoltaic generating system charge-discharge circuit of ripple is as shown in Figure 1.In Fig. 1, the photovoltaic should with voltage regulation filtering is sent out Electric system charge-discharge circuit includes solar cell module 1, filter circuit of pressure-stabilizing 2, DC/DC translation circuits 3, load 4, multiple mistakes Fill protection circuit 5, multiple two-way DC/DC circuits 6 and multiple batteries 7, solar components 1 and pass through filter circuit of pressure-stabilizing 2 and DC/ One end connection of DC translation circuits 3, the other end of DC/DC translation circuits 3 connect with load 4 and multiple overcharge protection circuits 5 respectively Connect, each overcharge protection circuit 5 is connected by a two-way DC/DC circuit 3 with a battery 7.
Maximum power point voltage, the electric current of photovoltaic cell are change in different situations, so, it is constant in load 4 In the case of, it is necessary to system adjusts charging current to coordinate tracing maximum power of photovoltaic cell simultaneously, could so realize light Lie prostrate battery maximum power output.Optimal discharge and recharge, load 4 are carried out during to realize maximum power of photovoltaic cell output to battery BA After it is determined that, the dutycycle D of controller while equidirectional adjustment DC/DC translation circuits 3 and charger, optimal charge is realized, is also made The battery BA of electric discharge presses optimal discharge current discharge.
Fig. 2 is the circuit theory diagrams of filter circuit of pressure-stabilizing in the present embodiment.In Fig. 2, filter circuit of pressure-stabilizing 2 includes triode Q1, voltage-regulator diode D1, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electricity Hold C6, the 7th electric capacity C7, the first inductance L1, the second inductance L2, first resistor R1, second resistance R2 and 3rd resistor R3, wherein, First resistor R1 one end and second resistance R2 one end are all connected with voltage input end VIN positive pole, and first resistor R1's is another One end of one end with 3rd resistor R3, voltage-regulator diode D2 negative pole and the first electric capacity C1 respectively is held to be connected, 3rd resistor R3 The other end be connected with triode Q1 base stage, voltage-regulator diode D1 positive pole and the first electric capacity C1 other end are defeated with voltage Enter to hold VIN negative pole to connect, the second resistance R2 other end is connected with triode Q1 colelctor electrode, triode Q1 emitter stage point One end of one end, the 4th electric capacity C4 and the first inductance L1 one end not with the second electric capacity C2 are connected, and the first inductance L1's is another End is connected with the second inductance L2 one end, the 6th electric capacity C6 one end and the 7th electric capacity C7 one end respectively, the second electric capacity C2's The other end, the 4th electric capacity C4 other end, the 6th electric capacity C6 other end and the 7th electric capacity C7 other end are all connected with and are grounded, The second inductance L2 other end other end with the first electric capacity C1, the 3rd electric capacity C3 one end and the 5th electric capacity C5 one end respectively Connection, the 3rd electric capacity C5 other end and the 5th electric capacity C5 other end are grounded.
Wherein, second resistance R2 and 3rd resistor R3 is current-limiting resistance, and second resistance R2 is used for the collection to triode Q1 Branch road where electrode carries out overcurrent protection, and 3rd resistor R3 is used to carry out excessively stream guarantor to the branch road where triode Q1 base stage Shield, so the safety and reliability of circuit is higher.
Above-mentioned triode Q1 is NPN type triode, certainly, in other cases of the present embodiment, triode Q1 Can be PNP type triode, but at this moment the structure of circuit also will accordingly change.
First electric capacity C1 is tantalum electric capacity, triode Q1, voltage-regulator diode D1, first resistor R1,3rd resistor R3 and first Electric capacity forms mu balanced circuit, and the first electric capacity C1 plays a part of filtering, eliminates the coupling for passing through power supply, and voltage is become into more flat Surely.4th electric capacity C4 and the 5th electric capacity C5 is tantalum electric capacity, due to not having electrolyte inside tantalum electric capacity, is well suited for work at high temperature Make, itself does not almost have inductance, and it has self-healing ability, and service life is long and reliability is high, and its working field strength is high, electricity Capacity is big, i.e., specific capacity is very high, particularly suitable miniaturization.First inductance L1 and the second inductance L2 is used to filter out AC signal, Electric capacity is used for voltage stabilizing, and is distributed using symmetrical expression, can further enhance filtering and voltage stabilizing effect of circuit, and circuit structure is simple, Be easy to it is integrated, can effectively reduce circuit it is integrated after volume.
In the present embodiment, the filter circuit of pressure-stabilizing 2 also includes the 4th resistance R4, and triode Q1 emitter stage passes through the 4th electricity Resistance R4 is connected with the second electric capacity C2 one end.4th resistance R4 is current-limiting resistance, for where the emitter stage to triode Q1 Branch road carries out overcurrent protection, to further enhance the safety and reliability of circuit.
In the present embodiment, the filter circuit of pressure-stabilizing 2 also includes the 5th resistance R5, the 5th resistance R5 one end and the 5th electric capacity C5 other end connection, the 5th resistance R5 other end ground connection.5th resistance R5 is current-limiting resistance, for the 5th electric capacity C5 and Branch road between ground carries out overcurrent protection, further to strengthen the safety and reliability of circuit.
In the present embodiment, the filter circuit of pressure-stabilizing 2 also includes the 6th resistance R6, the 6th resistance R6 one end and the first inductance L1 other end connection, the 6th resistance R6 other end are connected with the second inductance L2 one end.6th resistance R6 is current-limiting resistance, For carrying out overcurrent protection to the branch road where the second inductance L2.
In the present embodiment, the filter circuit of pressure-stabilizing 2 also includes the 7th resistance R7, the 7th resistance R7 one end and the 6th electric capacity C6 other end connection, the 7th resistance R7 other ends ground connection.7th resistance R7 is current-limiting resistance, for where the 6th electric capacity C6 Branch road carry out overcurrent protection.
In the present embodiment, the filter circuit of pressure-stabilizing 2 also includes the 8th resistance R8, the 8th resistance R8 one end and the 7th electric capacity C7 other end connection, the 8th resistance R8 other end ground connection.8th resistance R8 is current-limiting resistance, for the 7th electric capacity C7 institutes Branch road carry out overcurrent protection.
In a word, in the present embodiment, because filter circuit of pressure-stabilizing 2 is provided with current-limiting resistance, so the security of circuit and can It is higher by property.
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 (7)

  1. A kind of 1. photovoltaic generating system charge-discharge circuit with voltage regulation filtering, it is characterised in that including solar cell module, Filter circuit of pressure-stabilizing, DC/DC translation circuits, load, multiple overcharge protection circuits, multiple two-way DC/DC circuits and multiple electric power storages Pond, the solar components are connected by the filter circuit of pressure-stabilizing with one end of the DC/DC translation circuits, the DC/DC The other end of translation circuit is connected with the load and multiple overcharge protection circuits respectively, and each overcharge protection circuit is logical A two-way DC/DC circuit is crossed to be connected with a battery；
    The filter circuit of pressure-stabilizing includes triode, voltage-regulator diode, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electricity Appearance, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the first inductance, the second inductance, first resistor, second resistance and 3rd resistor, One end of the first resistor and one end of second resistance are all connected with the positive pole of voltage input end, the other end of the first resistor One end of one end with the 3rd resistor, the negative pole of voltage-regulator diode and the first electric capacity is connected respectively, the 3rd resistor The other end is connected with the base stage of the triode, the other end of the positive pole of the voltage-regulator diode and the first electric capacity with the electricity The negative pole connection of input is pressed, the other end of the second resistance is connected with the colelctor electrode of the triode, the triode Emitter stage is connected with one end, one end of the 4th electric capacity and one end of the first inductance of second electric capacity respectively, first electricity The other end of sense is connected with one end, one end of the 6th electric capacity and one end of the 7th electric capacity of second inductance respectively, and described The other end of two electric capacity, the other end of the 4th electric capacity, the other end of the 6th electric capacity and the other end of the 7th electric capacity are all connected with and connect Ground, the other end of second inductance other end with first electric capacity, one end of the 3rd electric capacity and the 5th electric capacity respectively One end is connected, and the other end of the 3rd electric capacity and the other end of the 5th electric capacity are grounded.
  2. 2. the photovoltaic generating system charge-discharge circuit according to claim 1 with voltage regulation filtering, it is characterised in that described Filter circuit of pressure-stabilizing also includes the 4th resistance, and the emitter stage of the triode passes through the 4th resistance and second electric capacity One end connects.
  3. 3. the photovoltaic generating system charge-discharge circuit according to claim 2 with voltage regulation filtering, it is characterised in that described Filter circuit of pressure-stabilizing also includes the 5th resistance, and one end of the 5th resistance is connected with the other end of the 5th electric capacity, described The other end ground connection of 5th resistance.
  4. 4. the photovoltaic generating system charge-discharge circuit with voltage regulation filtering according to claims 1 to 3 any one, it is special Sign is, the filter circuit of pressure-stabilizing also includes the 6th resistance, and one end of the 6th resistance is another with first inductance End connection, the other end of the 6th resistance are connected with one end of second inductance.
  5. 5. the photovoltaic generating system charge-discharge circuit with voltage regulation filtering according to claims 1 to 3 any one, it is special Sign is, the filter circuit of pressure-stabilizing also includes the 7th resistance, and one end of the 7th resistance is another with the 6th electric capacity End connection, the 7th resistance other end ground connection.
  6. 6. the photovoltaic generating system charge-discharge circuit with voltage regulation filtering according to claims 1 to 3 any one, it is special Sign is, the filter circuit of pressure-stabilizing also includes the 8th resistance, and one end of the 8th resistance is another with the 7th electric capacity End connection, the other end ground connection of the 8th resistance.
  7. 7. the photovoltaic generating system charge-discharge circuit with voltage regulation filtering according to claims 1 to 3 any one, it is special Sign is that the triode is NPN type triode.
CN201720241936.2U 2017-03-14 2017-03-14 Photovoltaic generating system charge-discharge circuit with voltage regulation filtering Active CN206673618U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720241936.2U CN206673618U (en) 2017-03-14 2017-03-14 Photovoltaic generating system charge-discharge circuit with voltage regulation filtering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720241936.2U CN206673618U (en) 2017-03-14 2017-03-14 Photovoltaic generating system charge-discharge circuit with voltage regulation filtering

Publications (1)

Publication Number Publication Date
CN206673618U true CN206673618U (en) 2017-11-24

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