CN201629594U - Solar photovoltaic electricity charging and discharging controller - Google Patents
Solar photovoltaic electricity charging and discharging controller Download PDFInfo
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- CN201629594U CN201629594U CN2010201523333U CN201020152333U CN201629594U CN 201629594 U CN201629594 U CN 201629594U CN 2010201523333 U CN2010201523333 U CN 2010201523333U CN 201020152333 U CN201020152333 U CN 201020152333U CN 201629594 U CN201629594 U CN 201629594U
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- relay
- triode
- integrated transporting
- transporting discharging
- storage battery
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Abstract
The utility model relates to a solar photovoltaic electricity charging and discharging controller, belonging to the technical field of solar photovoltaic control. The controller comprises a charging control loop for controlling a solar battery to be connected with a storage battery as well as a charging control circuit and a discharging control circuit for controlling the on-off of the discharging loop in which the storage battery is connected with a load, wherein the charging control circuit comprises a first integrated operationally amplifying chip, a fore triode and a first triode, a first offset resistor and a second offset resistor in parallel connection with the storage battery, a constant voltage regulator and a first relay, and the discharging control circuit comprises a second integrated operationally amplifying chip, a second triode, a third offset resistor in parallel connection with the storage battery, and a second relay. The controller controls conduction and stoppage of the triode through a comparer with the change of the storage battery voltage signal so as to control the relay to respectively control on-off of the charging loop and the discharging loop, thereby being capable of decreasing power consumption, increasing the stability and reliability of electricity charging and discharging, and prolonging the service life of battery.
Description
Technical field
The utility model relates to a kind of device that the charge and discharge of solar photovoltaic generation system are controlled of being used for, and belongs to photovoltaic control technology field.
Background technology
In existing solar photovoltaic generation system (as the photovoltaic illuminator etc.), need control and be equipped with special charging-discharging controller to solar recharging and discharge, to guarantee the safe handling of rechargeable battery and energy-storage battery.High-quality charge and discharge control requires the reliability and stability of charge and discharge electric current to want high, and the transmission power consumption and the temperature rise of charge and discharge also must be very little.Particularly,, require switching component accuracy reliability just higher, could guarantee the useful life and stable, the generating reliably of controller because of the difficulty of dispelling the heat in hot summer.
Understand according to the applicant, the high power switch triode is used in the most design of charging-discharging controller that is used for solar photovoltaic generation system in the market, this charging-discharging controller is when reality is used, because electric current is big, temperature is high, heat radiation is difficult, therefore easily burn after having grown service time, and then cause and normally to use by whole solar photovoltaic generation system.
The utility model content
The technical problems to be solved in the utility model is to propose a kind of controller that solar photovoltaic generation system can be stablized, reliably control charge and discharge that is used for.
The technical solution of the utility model is: a kind of photovoltaic charging-discharging controller, comprise and be used to control the solar cell loop, the charging control circuit of storage battery loop and load circuit break-make and charge/discharge control circuit, described charging control circuit comprises the first integrated transporting discharging chip of device as a comparison, respectively as the prime triode and first triode of electronic switch, first biasing resistor in parallel with storage battery respectively and second biasing resistor, first relay, described charge/discharge control circuit comprise the second integrated transporting discharging chip of device as a comparison, second triode as electronic switch, three biasing resistor in parallel with storage battery, second relay; The output of described first biasing resistor connects the in-phase input end of the first integrated transporting discharging chip and the inverting input of the second integrated transporting discharging chip respectively; The input of described second biasing resistor and the 3rd biasing resistor be connected with pressurizer, its output connects the inverting input of the first integrated transporting discharging chip and the in-phase input end of the second integrated transporting discharging chip respectively; The output of the described first integrated transporting discharging chip connects the base stage of prime triode; The collector electrode of described prime triode connects the output of pressurizer, and its emitter connects the base stage of first triode; The collector electrode of described first triode be parallel in the storage battery loop after the coil of first relay is connected, connect with solar cell in the contact of described first relay, the output of the described second integrated transporting discharging chip connects the base stage of second triode, in parallel with storage battery after the collector electrode of described second triode is connected with the coil of second relay, connect with load in the contact of described second relay.
Photovoltaic charging-discharging controller of the present utility model is owing to adopt the integrated transporting discharging chip of low-power consumption and triode to distinguish device and electronic switch as a comparison, the voltage signal in storage battery loop changed by comparator control the triode conducting and end, and then control relay is controlled solar cell loop, storage battery loop and load circuit break-make respectively, therefore compare earlier with the charge and discharge controller that adopts the high power switch triode, can reduce power consumption greatly and increase the stability and the reliability of charge and discharge, the useful life that also can improve battery simultaneously.
Improvement of the technical scheme is: also contain light-operated control switching circuit, described light-operated control switching circuit comprises the 3rd integrated transporting discharging chip of device as a comparison and the 4th integrated transporting discharging chip, as the 3rd triode of electronic switch, four biasing resistor in parallel, the 3rd relay, five biasing resistor in parallel with solar cell with storage battery, the output of described the 5th biasing resistor connects the in-phase input end of the 3rd integrated transporting discharging chip; The output of described the 3rd integrated transporting discharging chip connects the in-phase input end of the 4th integrated transporting discharging chip; The input of described the 4th biasing resistor connects pressurizer, and its output connects the inverting input of the 4th integrated transporting discharging chip; The output of described the 4th integrated transporting discharging chip connects the base stage of the 3rd triode, the collector electrode of described the 3rd triode connect with the coil of the 3rd relay the back and with the coils from parallel connection of coils of second relay, connect with load in the contact of described the 3rd relay.
Further improvement in the technical proposal is: described solar cell branch has three tunnel outputs in parallel, described charging control circuit also contains the 4th triode, the 5th triode, the 4th relay and the 5th relay, the collector electrode of described the 4th triode and the 5th triode is connected with the coil of the 4th relay and the 5th relay respectively, and the contact of described first relay, the 4th relay and the 5th relay is series at respectively in three tunnel outputs of solar cell.
The perfect of technique scheme is: the contact of described relay is its normally-closed contact.
Description of drawings
Below in conjunction with accompanying drawing photovoltaic charging-discharging controller of the present utility model is described further.
Fig. 1 is the photovoltaic charging-discharging controller circuit theory diagrams of the utility model embodiment one.
Fig. 2 is the photovoltaic charging-discharging controller circuit theory diagrams of the utility model embodiment two.
The photovoltaic charging-discharging controller circuit theory diagrams of Fig. 3 the utility model embodiment three.
Embodiment
Embodiment one
The photovoltaic charging-discharging controller of present embodiment comprises the charging control circuit and the charge/discharge control circuit that are used to control solar cell loop, storage battery loop and load circuit break-make as shown in Figure 1; Wherein e is the solar cell in the solar cell loop, and E is the storage battery in the storage battery loop.Charging control circuit comprises the first integrated transporting discharging chip 1 of device as a comparison, respectively as the prime triode T of electronic switch
0With the first triode T
1, first biasing resistor in parallel and second biasing resistor, first relay J respectively with storage battery
1Wherein, first biasing resistor is by resistance R
1, R
2With the first adjustable resistance RW
1Series connection constitutes, and second biasing resistor is by resistance R
5And R
6Series connection constitutes.Charge/discharge control circuit comprises the second integrated transporting discharging chip 2, as the second triode T of electronic switch
2, three biasing resistor, second relay J in parallel with the storage battery loop
2Wherein, the 3rd biasing resistor R
3By resistance R
3, R
4With the second adjustable resistance RW
2Series connection constitutes.The output of first biasing resistor connects the in-phase input end of the first integrated transporting discharging chip 1 and the inverting input of the second integrated transporting discharging chip 2.The input of second biasing resistor and the 3rd biasing resistor is connected with pressurizer W7806, and its output connects the inverting input of the first integrated transporting discharging chip 1 and the in-phase input end of the second integrated transporting discharging chip 2 respectively.The output of the first integrated transporting discharging chip 1 connects prime triode T
0Base stage.Prime triode T
0Collector electrode connect the output of pressurizer W7806, prime triode T
0Emitter connect the first triode T
1Base stage.The first triode T
1The collector electrode and first relay J
1Coil series connection after be parallel in the storage battery loop.First relay J
1Normally-closed contact connect with solar cell.The output of the second integrated transporting discharging chip 2 connects the second triode T
2Base stage.The second triode T
2The collector electrode and second relay J
2Coil series connection back in parallel with storage battery.Second relay J
2Normally-closed contact connect with load.
The photovoltaic charging-discharging controller course of work of present embodiment is as follows:
(1) charging control
As shown in Figure 1, by the resistance R of second biasing resistor
5And R
6Obtain the reference voltage V of high stability from storage battery E
1Give the end of oppisite phase of the first integrated transporting discharging chip 1, again by the resistance R of instrument biasing resistor
1, R
2With the first adjustable resistance R
W1Obtain V from storage battery E sampling
2Work as V
2＜V
1The time, the first integrated transporting discharging chip, 1 no-output voltage makes prime triode T
0End, and make the first triode T
1End first relay J
1Coil must not be in normally off by electricity, solar cell e is through the first diode D
10Storage battery E is charged.When the voltage of storage battery E rises (is V
2↑), V
2＞V
1The time, the first integrated transporting discharging chip, 1 output voltage makes prime triode T
0With the first triode T
1Conducting, first relay J
1Coil get electric, first relay J
1Normally-closed contact inhale and to open, cut off the charge circuit that storage battery E is connected with solar cell e, stop charges.Storage battery E discharge loop conducting and be used for load after (such as for illuminalive power-supply), the voltage of storage battery E can slowly descend.When storage battery E drops to the voltage of design code, V
2＜V
1, the first integrated transporting discharging chip 1 no-output voltage again makes prime triode T
0End, and make the first triode T
1End first relay J
1Coil must not be in normally off by electricity once more, the charge circuit conducting once more that storage battery E is connected with solar cell e recovers charging.Above-mentioned so repeatedly charging, discharge process, charging, in the discharge process by with the first diode D
10The first light-emitting diode ZD in parallel
1Provide charging, discharge indication as charging indicator light.
(2) discharge control
When the voltage of storage battery E behind load discharge drops to the lower voltage limit of design, the V of dividing potential drop gained
2Give the end of oppisite phase of the second integrated transporting discharging chip 2, the while is by the resistance R of the 3rd biasing resistor
3, R
4With the second adjustable resistance RW
3Obtain voltage V from storage battery E
3Give the in-phase end of the second integrated transporting discharging chip 2 as the benchmark electricity.At V
3＞V
2The time, the second integrated transporting discharging chip 2 just output voltage makes the second triode T
2Conducting also drives second relay J
2The normally-closed contact adhesive, thereby cut off the discharge loop that storage battery E is connected with load, do not put thereby protect storage battery E can not cross.By day, when solar cell e charging back voltage rises to the upper voltage limit of design, V
3＜V
2, the second integrated transporting discharging chip 2 output voltage again makes the second triode T
2End second relay J
2Be in normally off once more, storage battery E recovers once more to electric.The cut-out of above-mentioned discharge loop and conducting by with the second diode D
10The second light-emitting diode ZD in parallel
2Show lamp ZD as discharge
2Indication is provided.
Embodiment two
The photovoltaic charging-discharging controller of present embodiment is the improvement on embodiment one basis, and as shown in Figure 2, different is its circuit structure except that identical with embodiment one: also be provided with light-operated control switching circuit; Light-operated control switching circuit comprises the 3rd integrated transporting discharging chip 3, the 4th integrated transporting discharging chip 4 of device as a comparison, as the 3rd triode T of electronic switch
3, four biasing resistor, three relay J in parallel with storage battery E
3, five biasing resistor in parallel with solar cell e, wherein the 4th biasing resistor is by resistance R
7And R
8Series connection constitutes, and the 5th biasing resistor is by the 3rd adjustable resistance R
W3Constitute.The output of the 5th biasing resistor connects the in-phase input end of the 3rd integrated transporting discharging chip 3; The output of the 3rd integrated transporting discharging chip 3 connects the in-phase input end of the 4th integrated transporting discharging chip 4.The input of the 4th biasing resistor connects pressurizer W7806, and its output connects the inverting input of the 4th integrated transporting discharging chip 4.The output of the 4th integrated transporting discharging chip 4 connects the 3rd triode T
3Base stage, the 3rd triode T
3Collector electrode and the 3rd relay J
3Coil series connection back and with second relay J
2Coils from parallel connection of coils.The 3rd relay J
3The contact connect with load.
The switching controls process is as follows:
The output voltage of solar cell e is to become with the daylight illumination intensity, and the same day, illuminance dropped to needs unlatching load when (as night), regulated the 3rd adjustable resistance R
W1Obtain solar cell e output voltage V
4, amplify generation voltage V through the 4th integrated transporting discharging chip 4
6Supply with the 3rd integrated transporting discharging chip 3.Work as V
6＜V
5The time, the 4th integrated transporting discharging chip 3 no-output voltages make the 3rd triode T
3End the 3rd relay J
3Coil must not be in normally off by electricity, thereby open storage battery E to the discharge loop of load with to electric.At day, (V when the output voltage of solar cell e rises
4During rising), make V through 4 amplifications of the 4th integrated transporting discharging chip
6＞V
5, this moment, the 4th integrated transporting discharging chip 4 output voltages made T
3Conducting, and drive the 3rd relay J
3The normally-closed contact adhesive, realize cutting off automatically the discharge loop that storage battery E is connected with load, stop powering load (as turn off the light etc.).
Embodiment three
The photovoltaic charging-discharging controller of present embodiment is the improvement on embodiment two bases, and as shown in Figure 3, different is its circuit structure except that identical with embodiment two: solar cell e is divided into three tunnel outputs in parallel, increases by the second diode D
11With the 3rd diode D
12The output of the corresponding first integrated transporting discharging chip 1 also be divided into three the tunnel and connect respectively three triodes (from the first triode T
1The resistance R of base stage series connection
8Input is divided into three the tunnel), increase by the 4th triode T
4With the 5th triode T
5, increase by the 4th relay J simultaneously
4With the 5th relay J
5, the 4th triode T
4With the 5th triode T
5Collector electrode respectively with the 4th relay J
4With the 5th relay J
5Coil series connection.First relay J
1, the 4th relay J
4With the 5th relay J
5The contact be series at respectively solar cell e three the tunnel output in.
Like this, can shunt, thereby storage battery E and charge and discharge control circuit be damaged when avoiding solar cell e output current fluctuation big the output current of solar cell e.
Photovoltaic charging-discharging controller of the present utility model is not limited to the various embodiments described above, such as: 1) normally-closed contact of relay also can change normally opened contact into; 2) charging circuit that is connected with solar cell e of storage battery E also can be divided into two the road or multichannel; Or the like.All employings are equal to replaces the technical scheme that forms, and all drops on the protection range of the utility model requirement.
Claims (4)
1. photovoltaic charging-discharging controller, comprise the charging control circuit and the charge/discharge control circuit that are used to control the discharge loop break-make that charge circuit that solar cell is connected with storage battery and storage battery be connected with load, it is characterized in that: described charging control circuit comprises the first integrated transporting discharging chip of device as a comparison, respectively as the prime triode and first triode of electronic switch, first biasing resistor in parallel with storage battery respectively and second biasing resistor, first relay, described charge/discharge control circuit comprise the second integrated transporting discharging chip of device as a comparison, second triode as electronic switch, three biasing resistor in parallel with storage battery, second relay; The output of described first biasing resistor connects the in-phase input end of the first integrated transporting discharging chip and the inverting input of the second integrated transporting discharging chip respectively; The input of described second biasing resistor and the 3rd biasing resistor is connected with pressurizer, and its output connects the inverting input of the first integrated transporting discharging chip and the in-phase input end of the second integrated transporting discharging chip respectively; The output of the described first integrated transporting discharging chip connects the base stage of prime triode; The collector electrode of described prime triode connects the output of pressurizer, and its emitter connects the base stage of first triode; The collector electrode of described first triode be parallel in the storage battery loop after the coil of first relay is connected, connect with solar cell in the contact of described first relay, the output of the described second integrated transporting discharging chip connects the base stage of second triode, in parallel with storage battery after the collector electrode of described second triode is connected with the coil of second relay, connect with load in the contact of described second relay.
2. according to the described photovoltaic charging-discharging controller of claim 1, it is characterized in that: also contain light-operated control switching circuit, described light-operated control switching circuit comprises the 3rd integrated transporting discharging chip of device as a comparison and the 4th integrated transporting discharging chip, as the 3rd triode of electronic switch, four biasing resistor in parallel, the 3rd relay, five biasing resistor in parallel with solar cell with storage battery, the output of described the 5th biasing resistor connects the in-phase input end of the 3rd integrated transporting discharging chip; The output of described the 3rd integrated transporting discharging chip connects the in-phase input end of the 4th integrated transporting discharging chip; The input of described the 4th biasing resistor connects pressurizer, and its output connects the inverting input of the 4th integrated transporting discharging chip; The output of described the 4th integrated transporting discharging chip connects the base stage of the 3rd triode, the collector electrode of described the 3rd triode connect with the coil of the 3rd relay the back and with the coils from parallel connection of coils of second relay, connect with load in the contact of described the 3rd relay.
3. according to the described photovoltaic charging-discharging controller of claim 2, it is characterized in that: described solar cell branch has three tunnel outputs in parallel, described charging control circuit also contains the 4th triode, the 5th triode, the 4th relay and the 5th relay, the collector electrode of described the 4th triode and the 5th triode is connected with the coil of the 4th relay and the 5th relay respectively, and the contact of described first relay, the 4th relay and the 5th relay is series at respectively in three tunnel outputs of solar cell.
4. according to the arbitrary described photovoltaic charging-discharging controller of claim 1-3, it is characterized in that: the contact of described relay is its normally-closed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201523333U CN201629594U (en) | 2010-04-07 | 2010-04-07 | Solar photovoltaic electricity charging and discharging controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201523333U CN201629594U (en) | 2010-04-07 | 2010-04-07 | Solar photovoltaic electricity charging and discharging controller |
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| CN201629594U true CN201629594U (en) | 2010-11-10 |
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| CN2010201523333U Expired - Fee Related CN201629594U (en) | 2010-04-07 | 2010-04-07 | Solar photovoltaic electricity charging and discharging controller |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457316A (en) * | 2013-07-25 | 2013-12-18 | 杭州电子科技大学 | Load power supply control loop |
| CN104816647A (en) * | 2015-04-14 | 2015-08-05 | 刘泽法 | 96V self-generating electricity electronic vehicle |
| CN104842810A (en) * | 2015-04-24 | 2015-08-19 | 刘泽法 | 180V electric bicycle full automatic electric generator |
| CN104859475A (en) * | 2015-04-14 | 2015-08-26 | 刘泽法 | 12V self-generating electric vehicle |
| CN104859474A (en) * | 2015-04-14 | 2015-08-26 | 刘泽法 | 108V self-generating electric vehicle |
| US9240693B2 (en) | 2013-12-05 | 2016-01-19 | Ford Global Technologies, Inc. | Battery discharge device with self-adjusting resistance |
-
2010
- 2010-04-07 CN CN2010201523333U patent/CN201629594U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457316A (en) * | 2013-07-25 | 2013-12-18 | 杭州电子科技大学 | Load power supply control loop |
| CN103457316B (en) * | 2013-07-25 | 2015-03-18 | 杭州电子科技大学 | Load power supply control loop |
| US9240693B2 (en) | 2013-12-05 | 2016-01-19 | Ford Global Technologies, Inc. | Battery discharge device with self-adjusting resistance |
| CN104816647A (en) * | 2015-04-14 | 2015-08-05 | 刘泽法 | 96V self-generating electricity electronic vehicle |
| CN104859475A (en) * | 2015-04-14 | 2015-08-26 | 刘泽法 | 12V self-generating electric vehicle |
| CN104859474A (en) * | 2015-04-14 | 2015-08-26 | 刘泽法 | 108V self-generating electric vehicle |
| CN104842810A (en) * | 2015-04-24 | 2015-08-19 | 刘泽法 | 180V electric bicycle full automatic electric generator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20110407 |