CN217443510U - Photovoltaic system output end storage battery current monitoring device - Google Patents
Photovoltaic system output end storage battery current monitoring device Download PDFInfo
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- CN217443510U CN217443510U CN202220642204.5U CN202220642204U CN217443510U CN 217443510 U CN217443510 U CN 217443510U CN 202220642204 U CN202220642204 U CN 202220642204U CN 217443510 U CN217443510 U CN 217443510U
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Abstract
The utility model belongs to the technical field of solar photovoltaic power generation, and relates to a photovoltaic system output end storage battery current monitoring device, which comprises a photovoltaic panel, wherein the photovoltaic panel is electrically connected with an automatic switch through a photoelectric sensor, a storage battery and the automatic switch are respectively electrically connected with the input end of a double-switch, the double-switch is electrically connected with a photovoltaic inverter through a main control switch, one output end of the photovoltaic panel is electrically connected with the input end of the storage battery through a photovoltaic charging controller, the current monitoring system comprises a current sensor, a digital signal processor and a display, a current sensor is connected on the output circuit of the storage battery, the output end of the current sensor is connected with the digital signal processor, the output end of the digital signal processor is connected with the input end of the display, the utility model can monitor the current change of the storage battery in real time, the power supply of the storage battery is safer and controllable, and the service life of the storage battery is prolonged.
Description
Technical Field
The utility model belongs to the technical field of solar photovoltaic power generation, a photovoltaic system output holds battery current monitoring devices is related to.
Background
Solar energy is a clean energy, with the development of solar energy application technology, photovoltaic power generation is more and more emphasized by people, a photovoltaic energy storage colloid storage battery is an improved product on the basis of a common lead-acid storage battery, a gelling agent is added into a liquid electrolyte of the common lead-acid storage battery to enable a sulfuric acid electrolyte to be in a colloid state, the popularization of the colloid technology enables the battery to be improved in the aspects of safety, capacity, depth of discharge, service life and the like, the photovoltaic energy storage colloid storage battery is widely applied to solar street lamps, wind and light complementary power stations, off-grid power stations and the like, in the prior art, a monitoring device aiming at the current of the storage battery of a photovoltaic system is lacked, the service life of the storage battery and the efficiency of the storage battery are not prolonged, when the current of the storage battery is too high or too low, direct observation and timely early warning can not be realized, so that the problem can be timely and effectively treated.
Disclosure of Invention
To above problem, the utility model aims at providing a can prolong the duration of a journey ability of battery and can carry out real time monitoring to the current change of battery, make the battery power supply safe controllable more, show the life who improves the battery, realize the power supply mode that photovoltaic board and battery supplemented each other and combine simultaneously.
The purpose of the utility model is realized through the following technical scheme: a device for monitoring the current of a storage battery at the output end of a photovoltaic system comprises a photovoltaic panel, a photovoltaic charge controller, the storage battery, a current monitoring system, a photovoltaic inverter and a photoelectric sensor, the photovoltaic panel is electrically connected with the automatic switch through the photoelectric sensor, the storage battery and the automatic switch are respectively and electrically connected with the input end of the double-cut switch, the double-switch is electrically connected with the photovoltaic inverter through a main control switch, one output end of the photovoltaic panel is electrically connected with the input end of the storage battery through a photovoltaic charging controller, the current monitoring system comprises a current sensor, a digital signal processor and a display, the output circuit of the storage battery is connected with the current sensor, the output end of the current sensor is connected with the digital signal processor, and the output end of the digital signal processor is connected with the input end of the display.
Preferably, the display is connected with an alarm instrument, and can play a role in early warning, so that workers can find and handle problems in time.
Preferably, the photovoltaic charging controller is an MPPT controller, and the MPPT controller tracks the maximum power point of the photovoltaic panel, so that the photovoltaic panel charges the storage battery with the maximum power output electric energy, thereby improving the charging efficiency of the storage battery.
Preferably, the photovoltaic inverter is connected with the boosting transformer, the boosting transformer is electrically connected with the heat dissipation fan through the temperature control switch, the detection end of the temperature control switch is in contact with the surface of the photovoltaic inverter, and when the temperature of the photovoltaic inverter rises, the temperature control switch is turned on, so that the purpose of utilizing the heat dissipation fan to conduct blowing and heat dissipation is achieved.
Preferably, a humidity sensor and a temperature sensor are arranged between the photovoltaic panel and the automatic switch, the photovoltaic panel is connected with the automatic switch through the humidity sensor, the temperature sensor and the photoelectric sensor respectively, when the temperature sensed by the temperature sensor is low, and the humidity sensed by the humidity sensor is high, the automatic switch is preset to be disconnected with the double-switch circuit, when the temperature sensed by the temperature sensor is high or the humidity sensed by the humidity sensor is low, the photoelectric sensor senses certain light intensity to irradiate, the automatic switch is connected with the double-switch through presetting, so that weather which is frequent in a cloudy-sunny alternative mode is realized, the automatic switch can be disconnected with the double-switch, electric energy stored by a storage battery is only used for providing electric energy for the whole system, frequent in the alternative of the double-switch is avoided, and a system circuit is protected.
Preferably, the storage battery is connected with a power switch, and the input and output currents of the storage battery are controlled through the power switch, so that the system is safer and more controllable.
Preferably, the display is a touch screen with an embedded low-power-consumption CPU as a core, so that the burden of the digital signal processor can be reduced, the digital signal processor can process data in real time, and the display is convenient to communicate with other peripheral equipment.
Preferably, a voltage sensor is further connected in parallel to an output circuit of the storage battery, and an output end of the voltage sensor is connected with the digital signal processor.
Preferably, the photovoltaic panel is a photovoltaic array formed by connecting a plurality of solar panels in series, and the storage battery is formed by connecting a plurality of storage batteries in series.
In the utility model, when the photoelectric sensor senses a certain light intensity irradiation, the photoelectric sensor is connected with the double-cut switch through the preset automatic switch to directly supply power to the power system, one output end of the photovoltaic panel is electrically connected with the input end of the storage battery through the photovoltaic charging controller, the photovoltaic panel can convert solar energy into electric energy according to the energy storage requirement of the storage battery, and the electric energy is transmitted to the storage battery for energy storage, and the power supply can be connected with or disconnected from the photovoltaic inverter through the main control switch according to the requirement, the double-cut switch can select the electric energy power supply of the photovoltaic inverter, and the direct current is converted into alternating current through the photovoltaic inverter, so that the power supply is stable and continuous, the charging and discharging of the storage battery are convenient and reliable, the endurance time of the storage battery is prolonged, the output circuit of the storage battery is connected with the current sensor, and the induced current change is carried out on the storage battery through the current sensor, and the information is transmitted to a Digital Signal Processor (DSP), the current change information transmitted back by the current sensor is digitally processed and finally directly displayed on a display, and when the current is too large or too small, a worker can timely process the problem through the information data on the display, so that the service life of the storage battery is effectively prolonged.
Has the beneficial effects that: the utility model discloses can prolong the duration of battery and can carry out real time monitoring to the current change of battery, make the battery power supply safe controllable more, show the life who improves the battery, realize the integration power supply mode that photovoltaic board and battery combined together simultaneously.
Drawings
The specific structure of the application is given by the following figures and examples:
FIG. 1: the structure of embodiment 1 of the utility model is schematically shown;
FIG. 2: the utility model discloses embodiment 2's structural schematic.
In the figure: 1. the photovoltaic power generation system comprises a photovoltaic panel, 2. a photovoltaic charge controller, 3. a storage battery, 4. a photovoltaic inverter, 5. a photoelectric sensor, 6. an automatic switch, 7. a double-switch, 8. a main control switch, 9. a current sensor, 10. a digital signal processor, 11. a display, 12. an alarm, 13. a power switch, 14. a humidity sensor, 15. a temperature sensor, 16. a voltage sensor, 21. an MPPT controller, 41. a step-up transformer, 42. a temperature control switch and 43. a cooling fan.
Detailed Description
The following is a detailed description of the present invention for further explanation. The patent protection scope of the present invention is not limited to the above description, and all the equivalent structures or equivalent processes that are used in the specification and the attached drawings are directly or indirectly applied to other related technical fields.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout of the drawings in the specification, such as: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction in the drawings of the specification.
Embodiment 1, referring to fig. 1, a device for monitoring the current of a storage battery at the output end of a photovoltaic system comprises a photovoltaic panel, a photovoltaic charge controller, a storage battery, a current monitoring system, a photovoltaic inverter and a photoelectric sensor, wherein the photovoltaic panel is electrically connected with an automatic switch through the photoelectric sensor, the storage battery and the automatic switch are respectively electrically connected with the input end of a double-switch, the double-switch is electrically connected with the photovoltaic inverter through a main control switch, one output end of the photovoltaic panel is electrically connected with the input end of the storage battery through the photovoltaic charge controller, the current monitoring system comprises a current sensor, a digital signal processor and a display, the current sensor is connected with the output circuit of the storage battery, the output end of the current sensor is connected with the digital signal processor, and the output end of the digital signal processor is connected with the input end of the display, the display is connected with the alarm instrument, and can play a role in early warning, so that workers can find and handle problems in time.
Photovoltaic charge controller is the MPPT controller, and through the tracking of MPPT controller to photovoltaic board maximum power point, make the photovoltaic board charge to the battery with maximum power output electric energy to improve the charge efficiency of battery, be connected with switch on the battery, control the input and the output current of battery through switch, make the system more safe controllable.
The display is a touch screen with an embedded low-power-consumption CPU as a core, so that the burden of the digital signal processor can be reduced, the digital signal processor can process data in real time, and the display is convenient to communicate with other peripheral equipment.
The photovoltaic panel is a photovoltaic array formed by connecting a plurality of solar panels in series, and the storage battery is formed by connecting a plurality of storage batteries in series.
In the utility model, when the photoelectric sensor senses a certain light intensity irradiation, the photoelectric sensor is connected with the double-cut switch through the preset automatic switch to directly supply power to the power system, one output end of the photovoltaic panel is electrically connected with the input end of the storage battery through the photovoltaic charging controller, the photovoltaic panel can convert solar energy into electric energy according to the energy storage requirement of the storage battery, and the electric energy is transmitted to the storage battery for energy storage, and the power supply can be connected with or disconnected from the photovoltaic inverter through the main control switch according to the requirement, the double-cut switch can select the electric energy power supply of the photovoltaic inverter, and the direct current is converted into alternating current through the photovoltaic inverter, so that the power supply is stable and continuous, the charging and discharging of the storage battery are convenient and reliable, the endurance time of the storage battery is prolonged, the output circuit of the storage battery is connected with the current sensor, and the induced current change is carried out on the storage battery through the current sensor, and the information is transmitted to a Digital Signal Processor (DSP), the current change information transmitted back by the current sensor is digitally processed and finally directly displayed on a display, and when the current is too large or too small, a worker can timely process the problem through the information data on the display, so that the service life of the storage battery is effectively prolonged.
The photovoltaic panel is connected with the automatic switch through the humidity sensor, the temperature sensor and the photoelectric sensor respectively, when the temperature sensor senses that the temperature is low and the humidity sensor senses that the humidity is high, the preset automatic switch is disconnected with the double-cut switch circuit, when the temperature sensor senses that the temperature is high or the humidity sensor senses that the humidity is low and the photoelectric sensor senses that certain light intensity irradiates, the automatic switch is connected with the double-cut switch through the preset automatic switch, so that the weather with frequent alternation between cloudy and sunny days is realized, the automatic switch can be disconnected with the double-cut switch, the whole system is provided with electric energy only by using the electric energy stored by the storage battery, the frequent alternation of the double-cut switch is avoided, the system circuit is protected, and the output circuit of the storage battery is also connected with the voltage sensor in parallel, and the output end of the voltage sensor is connected with the digital signal processor.
The foregoing description is by way of example only and is not intended as limiting the embodiments of the present application. All obvious variations and modifications of the present invention are within the scope of the present invention.
Claims (8)
1. A device for monitoring the current of a storage battery at the output end of a photovoltaic system is characterized by comprising a photovoltaic panel, a photovoltaic charge controller, the storage battery, a current monitoring system, a photovoltaic inverter and a photoelectric sensor, the photovoltaic panel is electrically connected with the automatic switch through the photoelectric sensor, the storage battery and the automatic switch are respectively and electrically connected with the input end of the double-cut switch, the double-switch is electrically connected with the photovoltaic inverter through a main control switch, one output end of the photovoltaic panel is electrically connected with the input end of the storage battery through a photovoltaic charging controller, the current monitoring system comprises a current sensor, a digital signal processor and a display, the output circuit of the storage battery is connected with the current sensor, the output end of the current sensor is connected with the digital signal processor, and the output end of the digital signal processor is connected with the input end of the display.
2. The photovoltaic system output terminal battery current monitoring device according to claim 1, wherein said display is connected to an alarm.
3. The device for monitoring battery current at the output of a photovoltaic system of claim 2, wherein said photovoltaic charge controller is an MPPT controller.
4. The apparatus according to claim 3, wherein the photovoltaic inverter is connected to a step-up transformer, the step-up transformer is electrically connected to the cooling fan through a temperature-controlled switch, and a detection end of the temperature-controlled switch contacts a surface of the photovoltaic inverter.
5. The device for monitoring the current of the storage battery at the output end of the photovoltaic system as claimed in claim 1, wherein a humidity sensor and a temperature sensor are further arranged between the photovoltaic panel and the automatic switch, and the photovoltaic panel is respectively connected with the automatic switch through the humidity sensor, the temperature sensor and the photoelectric sensor.
6. The device for monitoring the current of the storage battery at the output end of the photovoltaic system as claimed in claim 5, wherein a power switch is connected to the storage battery.
7. The device for monitoring the current of the storage battery at the output end of the photovoltaic system as claimed in claim 6, wherein the display is an embedded touch screen with a low-power CPU as a core.
8. The device for monitoring the current of the storage battery at the output end of the photovoltaic system as claimed in claim 7, wherein a voltage sensor is further connected in parallel to the output circuit of the storage battery, and the output end of the voltage sensor is connected with the digital signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220642204.5U CN217443510U (en) | 2022-03-24 | 2022-03-24 | Photovoltaic system output end storage battery current monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220642204.5U CN217443510U (en) | 2022-03-24 | 2022-03-24 | Photovoltaic system output end storage battery current monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217443510U true CN217443510U (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220642204.5U Active CN217443510U (en) | 2022-03-24 | 2022-03-24 | Photovoltaic system output end storage battery current monitoring device |
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| CN (1) | CN217443510U (en) |
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- 2022-03-24 CN CN202220642204.5U patent/CN217443510U/en active Active
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