CN103236725B - Power supply method of solar controller control circuit and circuit thereof - Google Patents
Power supply method of solar controller control circuit and circuit thereof Download PDFInfo
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- CN103236725B CN103236725B CN201310142065.5A CN201310142065A CN103236725B CN 103236725 B CN103236725 B CN 103236725B CN 201310142065 A CN201310142065 A CN 201310142065A CN 103236725 B CN103236725 B CN 103236725B
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Abstract
The invention provides a power supply method of a solar controller control circuit and a circuit thereof. A control circuit power module is powered by a storage battery by arranging a voltage-stabilizing module, or the control circuit power module is powered by a solar battery panel. Under the condition that the storage battery has a power failure, after being processed by the voltage-stabilizing module, the solar battery panel voltage is transmitted to the control circuit power module, after a controller is electrified, the solar battery panel charges the storage battery through a charging module, and when the storage battery reaches discharge restoring voltage, the storage battery restores to power the control circuit power module. The circuit is simple in structure, low in cost and easy to realize, continuous work of a solar controller is ensured, and the controller can be protected during power supply switching.
Description
Technical field
The invention belongs to circuit engineering field, relate to the power source supply method of the control circuit of solar charging/discharging controller, CPU and testing circuit, is a kind of method of supplying power to and circuit thereof of controller for solar control circuit.
Background technology
Current solar energy is substantially all taken from storage battery from the power supply of the controller for solar in net electricity generation system self, usually the lead acid accumulator all used, because controller for solar oneself power consumption is very little, even if common lead acid accumulator is under under-voltage condition, also can maintain controller and use considerable time, even if solar panel is not because for the moment have the temporary non-transformer of illumination, controller also can maintain until solar panel produces electric energy, then controls solar energy and charge a battery.But lead acid accumulator is owing to can produce the factors such as environmental pollution, volume weight be larger, and its application is restricted.
The advantages such as along with the development of lithium battery technology, and price drops further, and lithium battery is little with its volume, pollution is few, are more applied in net electricity generation system at solar energy.But when storage battery is lithium battery; because the built-in baffle of lithium battery can protection automatically when storage battery is crossed and put; namely thoroughly can turn off output when deep under-voltage; make the whole dead electricity of controller for solar; CPU and charge-discharge control circuit and various testing circuit all do not work, due to controller dead electricity, even if solar panel has electricity; also uncontrollable solar panel charges to storage battery, and whole solar generating system was lost efficacy.
Consider from the angle of power supply, if adopt solar panel and storage battery to power to the power module of controller for solar as duplicate supply, make the control of controller and testing circuit that solar panel can be utilized after storage battery dead electricity to work on, the problem in a lot of circuit design can be there is: when 1) solar panel charges a battery, require it is common positive pole; 2) testing circuit of controller and the negative pole of storage battery need equipotential altogether; 3) voltage of solar panel changes with the change of solar irradiation, and voltage fluctuation amplitude is comparatively large, and the solar cell panel voltages as 24V controller system can from 0 to 70V, and this just requires from the input voltage range of the circuit of solar panel power taking very wide; And the voltage of storage battery is different from solar panel scope, two kinds of input powers just require independent power supply input circuit; 4), during storage battery dead electricity, control circuit lost efficacy, and now required that solar panel can be powered from trend control circuit; 5) solar panel also will complete the charging work to storage battery when powering to control circuit; For these reasons, consider to adopt solar panel power supply, the restrictive condition of circuit design is a lot, if directly power to the control circuit of controller by after solar panel and storage battery separately voltage stabilizing, circuit can be very complicated, and increase a lot of additional circuit, circuit cost is higher.
Summary of the invention
The problem to be solved in the present invention is: solar energy is from net electricity generation system, when powering to controller for solar control circuit, once storage battery quits work, whole control circuit will dead electricity, controller is uncontrollable to charge to storage battery, also from solar panel, directly cannot obtain electric energy; Cause whole solar generating system to lose efficacy cannot automatically restart.
Technical scheme of the present invention is: a kind of method of supplying power to of controller for solar control circuit, arranges two Voltage stabilizing modules, realizes being powered to control circuit power module by storage battery or solar panel:
When storage battery is powered to control circuit power module, electric current flows out from the positive pole of storage battery, through the negative pole of the first Voltage stabilizing module, control circuit power module inflow storage battery, makes the voltage of control circuit power module remain on stationary value V by the first Voltage stabilizing module;
When solar panel is powered to control circuit power module, electric current flows out from the positive pole of solar panel, through the negative pole of the first Voltage stabilizing module, control circuit power module, the second Voltage stabilizing module inflow solar panel, the voltage of control circuit power module is made to remain on stationary value V by the first Voltage stabilizing module and the second Voltage stabilizing module;
The wherein output of the reference edge connection control circuit power module of the first Voltage stabilizing module, the input of the reference edge connection control circuit power module of the second Voltage stabilizing module.
When storage battery dead electricity, control circuit power module obtains electric energy by solar panel, after control circuit is started working, control circuit controls charging module work, make solar panel to charge in batteries, after charge in batteries, storage battery continues to power to control circuit power module; Wherein the earth point of control circuit power module is connected with the negative pole of storage battery, makes both equipotentials, detects the voltage of storage battery for control circuit.
Described storage battery is lithium battery.
Power supply circuits for controller for solar control circuit, are provided with two Voltage stabilizing modules, wherein:
First Voltage stabilizing module is provided with input, benchmark and output three contacts:
Input contact is connected with the positive pole of storage battery with solar panel;
Reference-junction is connected with the input contact of the second Voltage stabilizing module with the negative pole of storage battery, the earth point of control circuit power module;
Output contact is connected with the input of control circuit power module and the reference-junction of the second Voltage stabilizing module;
Second Voltage stabilizing module is provided with input, benchmark and output three contacts:
Input contact is connected with the reference-junction of the negative pole of storage battery, the earth point of control circuit power module and the first Voltage stabilizing module;
Input and the first Voltage stabilizing module output of reference-junction and control circuit power module are connected;
Output contact is connected with the negative pole of solar panel.
Charging module is connected with between the solar panel negative pole of power supply circuits and battery terminal negative.
One end of charging module connects the earth point of battery terminal negative, the reference-junction of the first Voltage stabilizing module, the input contact of the second Voltage stabilizing module and control circuit power module, and the other end connects solar panel negative pole and the second Voltage stabilizing module output contact.
For the powerup issue of controller for solar control circuit, consider various designing requirement and design cost, the invention provides a kind of structure is simple, with low cost, be easy to the controller for solar control circuit realized method of supplying power to and circuit, when storage battery normally can export electric energy, the power supply of controller is taken from storage battery; When storage battery turns off output, then transfer to and being powered by solar panel, even if night solar panel temporarily there is no electric energy, along with the irradiation of the sun on daytime, solar panel can generate electricity, when the voltage at solar panel two ends reaches certain value, the power supply circuits of controller just can be resumed work, wake controller up and enter operating state, and open charging module, to charge in batteries, when being charged to certain voltage, storage battery recovers to export, and controller for solar can continue the electric energy using storage battery.Like this, even if the situation of dead electricity temporarily appears in whole controller for solar, also automatically can recover very soon, ensure that the continuous firing of solar generating system.
In addition, because the output voltage of solar panel is the power supply of a change, for the self-reacting controller for solar of 12V and 24V, the voltage range of solar panel is 0-70V, and the voltage of storage battery is also the power supply of a change, the lithium battery of such as 12V exports as 0-15V, so just should be noted that input line when solar cell and storage battery being connected to controller is connected and can not makes mistakes, otherwise can burn out controller because of the not adaptive of voltage.The present invention by the first Voltage stabilizing module and the second Voltage stabilizing module by the input voltage stabilizing of controller controling circuit a low voltage, storage battery and solar panel share a part of voltage stabilizing circuit, simplify circuit structure, even if the more important thing is the input line wrong by solar panel and storage battery, also this circuit the damage of controller controling circuit can not be caused, so can also be avoided causing controller to damage because of the wiring error of controller.
The present invention is applicable to the controller for solar using and comprise the various storage batterys of lithium battery, maintains the work of controller for solar control circuit when storage battery dead electricity.
Accompanying drawing explanation
Fig. 1 is block diagram of the present invention.
Fig. 2 is the circuit diagram of one embodiment of the invention.
Embodiment
The present invention proposes a kind of method of supplying power to and circuit of controller for solar control circuit; be particularly useful for the situation of lithium battery as storage battery; both can be powered by the power module of lithium battery to control circuit; also can be powered by the power module of solar panel to control circuit; thus when lithium battery Cross prevention plate discharge switch B disconnects; as long as solar cell panel voltages reaches certain value; the control circuits such as controller are resumed work; open charging module, and then solar panel is charged to lithium battery by charging module.When lithium battery reaches electric discharge recovery voltage, lithium battery Cross prevention plate discharge switch B closes automatically, and lithium battery starts as control circuit power module is powered.
As shown in Figure 1, Current Controller circuit power module of the present invention, two Voltage stabilizing modules,
First Voltage stabilizing module is provided with input, benchmark and output three contacts:
A1) input contact to be connected with the positive pole of storage battery with solar panel;
B1) reference-junction is connected with the input contact of the second Voltage stabilizing module with the negative pole of storage battery, the earth point of control circuit power module;
C1) output contact is connected with the input of control circuit power module and the reference-junction of the second Voltage stabilizing module;
Second Voltage stabilizing module is provided with input, benchmark and output three contacts:
A2) input contact to be connected with the reference-junction of the negative pole of storage battery, the earth point of control circuit power module and the first Voltage stabilizing module;
B2) input of reference-junction and control circuit power module and the first Voltage stabilizing module output are connected;
C2) output contact is connected with the negative pole of solar panel.
Charging module is connected with between the solar panel negative pole of power supply circuits and battery terminal negative.One end of charging module connects the earth point of battery terminal negative, the reference-junction of the first Voltage stabilizing module, the input contact of the second Voltage stabilizing module and control circuit power module, and the other end connects solar panel negative pole and the second Voltage stabilizing module output contact.When storage battery dead electricity, control circuit power module obtains electric energy by solar panel, after control circuit is started working, control circuit controls charging module work, make solar panel to charge in batteries, after charge in batteries, storage battery continues to power to control circuit power module; Wherein the earth point of control circuit power module is connected with the negative pole of storage battery, and altogether, makes both equipotentials, detects the voltage of storage battery for control circuit.
In Fig. 1, the direction of arrow represents solar panel, storage battery to control circuit power module current supply circuit.When storage battery is powered to controller for solar, electric current flows out from the positive pole of storage battery, through the negative pole of the first Voltage stabilizing module, control circuit power module inflow storage battery, pressure drop now on the first Voltage stabilizing module is V1, pressure drop on control circuit power module is V, and the voltage of storage battery is V1+V; When solar panel is powered to controller for solar, electric current flows out from the positive pole of solar panel, through the negative pole of the first Voltage stabilizing module, control circuit power module, the second Voltage stabilizing module inflow solar panel, pressure drop now on the first Voltage stabilizing module is V1, pressure drop on second Voltage stabilizing module is V2, pressure drop on control circuit power module is V, and the voltage of solar cell is V1+V2+V.Therefore no matter be that storage battery power supply or solar panel are powered, and respective voltage is how many, in a circuit according to the invention, can by the circuit parameter of adjustment Voltage stabilizing module, make the voltage V of control circuit power module keep a stationary value, the conversion of two kinds of supply power modes also can not bring damage to controller.And when the voltage of solar panel reaches the voltage charged a battery, charging module is opened, the voltage of solar panel and storage battery are substantially equal.
When lithium battery Cross prevention plate discharge switch B disconnects, solar cell panel voltages by passing to control circuit power module after Voltage stabilizing module process, controller obtain electric after, solar panel by charging module to lithium cell charging.When lithium battery reaches electric discharge recovery voltage, lithium battery Cross prevention plate discharge switch B closes automatically, and lithium battery recovers to power to control circuit power module.
The present invention has following characteristics:
1) when lithium battery Cross prevention plate discharge switch disconnects, solar panel can power automatically to control circuit power module.
2) controller obtain electric after, open charging module and lithium battery charged, when lithium battery reach electric discharge recovery voltage time, lithium battery protection board discharge switch B closes automatically, and lithium battery starts as control circuit power module is powered.
3) existing controller the wiring misconnection of solar panel at controller input time; controller power source part can because cannot bear high voltage and burn; solar cell panel voltages can be treated to a stable voltage supply control circuit power module by the Voltage stabilizing module of circuit of the present invention, thus effective protection controller.
Below by a specific embodiment, the present invention is described.
As shown in Figure 2, circuit comprises the first Voltage stabilizing module, the second Voltage stabilizing module, control circuit power module and charging module.The first described Voltage stabilizing module is made up of R1, Q1, D4, has three contacts, respectively with 1) solar cell is connected with the positive pole of lithium battery; 2) be connected with one end of one end of charging module, the second Voltage stabilizing module, the reference edge of control circuit power module and the negative pole of storage battery; 3) one end of control circuit power module input, the second Voltage stabilizing module is connected.The second described Voltage stabilizing module is made up of R2, Q2, D2, D3, has three contacts, respectively with 1) one end of the first Voltage stabilizing module, the input of control circuit power module be connected; 2) be connected with cathode of lithium battery, the reference edge of control circuit power module, the reference edge of the first Voltage stabilizing module, one end of charge control module; 3) negative pole of solar cell, one end of charging module are connected.
The output of the first described Voltage stabilizing module and the benchmark of the second Voltage stabilizing module are connected on the input of control circuit power module jointly, the reference edge of control circuit power module is connected with the negative pole of lithium battery, and the CPU exporting to controller for solar of control circuit power module, control circuit, testing circuit are powered.
Described charging module has two contacts, is connected respectively with solar cell negative pole with cathode of lithium battery.When lithium battery Cross prevention plate discharge switch B disconnects; once solar array voltage reaches certain value; solar array voltage is by passing to control circuit power module after Voltage stabilizing module process; controller CPU obtain electric after; control switch A close, solar cell by charging module to lithium cell charging.When lithium battery reaches electric discharge recovery voltage, lithium battery Cross prevention plate discharge switch B closes automatically, and lithium battery recovers normal power supply.
The present invention is applicable to use the controller for solar of the various storage batterys comprising lithium battery, when the situation of storage battery generation dead electricity, power supply is provided by solar panel, maintain the work of controller for solar control circuit, again to charge in batteries, after realizing storage battery dead electricity, automatically restarting of control circuit.
Claims (7)
1. a method of supplying power to for controller for solar control circuit, is characterized in that arranging two Voltage stabilizing modules, realizes being powered to control circuit power module by storage battery or solar panel:
When storage battery is powered to control circuit power module, electric current flows out from the positive pole of storage battery, through the negative pole of the first Voltage stabilizing module, control circuit power module inflow storage battery, makes the voltage of control circuit power module remain on stationary value V by the first Voltage stabilizing module;
When solar panel is powered to control circuit power module, electric current flows out from the positive pole of solar panel, through the negative pole of the first Voltage stabilizing module, control circuit power module, the second Voltage stabilizing module inflow solar panel, the voltage of control circuit power module is made to remain on stationary value V by the first Voltage stabilizing module and the second Voltage stabilizing module;
The wherein output of the reference edge connection control circuit power module of the first Voltage stabilizing module, the input of the reference edge connection control circuit power module of the second Voltage stabilizing module.
2. the method for supplying power to of a kind of controller for solar control circuit according to claim 1, it is characterized in that when storage battery dead electricity, control circuit power module obtains electric energy by solar panel, after control circuit is started working, control circuit controls charging module work, make solar panel to charge in batteries, after charge in batteries, storage battery continues to power to control circuit power module; Wherein the earth point of control circuit power module is connected with the negative pole of storage battery, makes both equipotentials, detects the voltage of storage battery for control circuit.
3. the method for supplying power to of a kind of controller for solar control circuit according to claim 1, is characterized in that described storage battery is lithium battery.
4. power supply circuits for controller for solar control circuit, is characterized in that being provided with two Voltage stabilizing modules, wherein:
First Voltage stabilizing module is provided with input, benchmark and output three contacts:
Input contact is connected with the positive pole of storage battery with solar panel, solar panel and storage battery positive pole altogether;
Reference-junction is connected with the input contact of the second Voltage stabilizing module with the negative pole of storage battery, the earth point of control circuit power module;
Output contact is connected with the input of control circuit power module and the reference-junction of the second Voltage stabilizing module;
Second Voltage stabilizing module is provided with input, benchmark and output three contacts:
Input contact is connected with the reference-junction of the negative pole of storage battery, the earth point of control circuit power module and the first Voltage stabilizing module;
Input and the first Voltage stabilizing module output of reference-junction and control circuit power module are connected;
Output contact is connected with the negative pole of solar panel.
5. the power supply circuits of a kind of controller for solar control circuit according to claim 4, is characterized in that being connected with charging module between solar panel negative pole and battery terminal negative.
6. the power supply circuits of a kind of controller for solar control circuit according to claim 5, it is characterized in that one end of charging module connects the earth point of battery terminal negative, the reference-junction of the first Voltage stabilizing module, the input contact of the second Voltage stabilizing module and control circuit power module, the other end connects solar panel negative pole and the second Voltage stabilizing module output contact.
7. the power supply circuits of a kind of controller for solar control circuit according to any one of claim 4-6, is characterized in that described storage battery is lithium battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310142065.5A CN103236725B (en) | 2013-04-22 | 2013-04-22 | Power supply method of solar controller control circuit and circuit thereof |
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| CN201310142065.5A CN103236725B (en) | 2013-04-22 | 2013-04-22 | Power supply method of solar controller control circuit and circuit thereof |
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| CN103236725B true CN103236725B (en) | 2015-05-20 |
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| JP6031721B1 (en) * | 2015-12-15 | 2016-11-24 | Ｍｉｒａｉ−Ｌａｂｏ株式会社 | Charger |
| CN106289564A (en) * | 2016-07-25 | 2017-01-04 | 北京新能源汽车股份有限公司 | A kind of temperature sensing circuit of the electric heating system controller for electric automobile |
| CN108494114A (en) * | 2018-01-26 | 2018-09-04 | 合肥驼峰电子科技发展有限公司 | Using the MM wave therapeutic instrument of a variety of power supply modes |
| CN109698523A (en) * | 2019-03-08 | 2019-04-30 | 四川长虹集能阳光科技有限公司 | Photovoltaic energy storage inversion system |
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| CN101102051B (en) * | 2007-07-27 | 2010-05-26 | 艾默生网络能源有限公司 | An accumulator battery control circuit |
| CN101728861B (en) * | 2010-01-25 | 2015-03-11 | 李培芳 | Deep discharge zero-power solar photovoltaic controller |
| JP2011250608A (en) * | 2010-05-27 | 2011-12-08 | Sanyo Electric Co Ltd | Solar cell system |
| CN201750187U (en) * | 2010-08-07 | 2011-02-16 | 青岛理工大学 | Solar-energy charging device |
| CN202384823U (en) * | 2011-12-30 | 2012-08-15 | 多氟多（焦作）新能源科技有限公司 | Photovoltaic controller |
| CN203415997U (en) * | 2013-04-22 | 2014-01-29 | 南京普天大唐信息电子有限公司 | Power supply circuit of control circuit of solar energy controller |
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