CN202269060U - Intelligent controller for solar wind energy charging and light control - Google Patents

Abstract

A utility model intelligent controller for solar wind energy charging and lighting control, including an MCU control unit, a voltage measurement module and a switch module, characterized in that it includes a small current zero voltage drop charging module, a constant current fast charging module and an output module; The input and output terminals of the small current zero voltage drop charging module are respectively connected to the output terminal of the solar panel and the input terminal of the input module; the input terminal of the constant current fast charging module is in phase with the output terminal of the solar panel and/or wind generator Connection, the output terminal is connected to the output module. The controller of the utility model realizes zero-voltage-drop charging with a small current and constant-current charging with a large current according to the detected voltage, so that the charging effect is optimal and the service life of the storage battery is prolonged. The controller can automatically reduce the output power according to the status of the battery, avoiding the battery from entering a deep discharge state, and ensuring that the entire solar led light source system works in a virtuous cycle.

Description

An intelligent controller for solar wind energy charging and lighting control

technical field

The utility model relates to an intelligent controller for solar wind energy charging and lighting control, more specifically, relates to a solar wind energy charging and lighting control that can charge a storage battery with small current zero voltage drop and large current constant current charging intelligent controller.

Background technique

With the gradual reduction of non-renewable resources on the earth, the utilization of wind energy and solar energy is gradually increasing, especially in the fields of lighting and power generation, and their applications are more extensive. In general, wind energy and solar energy are non-connected. In the process of utilizing them, the discontinuous and non-constant electrical energy converted from wind energy or solar energy should be stored first, and then the stored energy should be released uniformly. , to achieve the purpose that can be used.

In a system using solar or wind energy for lighting, in order to successfully store the electric energy converted by solar photovoltaic panels and wind generators in the battery and use it for lighting, and at the same time to maximize the service life of the battery, a kind of A controller that can collect relevant parameters and perform intelligent control based on the collected data, but none of the existing controllers has intelligent control.

Contents of the invention

In order to overcome the shortcomings of the above technical problems, the utility model provides an intelligent controller for solar wind energy charging and lighting control, which can charge the storage battery with a small current zero voltage drop and a large current constant current.

The intelligent controller for solar wind energy charging and light control of the utility model includes an MCU control unit for data calculation and control, a voltage measurement module for detecting the battery, and a switch module directly connected to the light source. In that: it also includes a small current zero voltage drop charging module for charging the storage battery, a constant current fast charging module and an output module for connecting with the storage battery; the input and output terminals of the small current zero voltage drop charging module are respectively It is connected with the output end of the solar panel and the input end of the input module; the input end of the constant current fast charging module is connected with the output end of the solar panel and/or the wind generator, and the output end is connected with the output module. The MUC control unit is used to process and calculate the collected signals, and control the peripheral modules according to the calculated data and logical relationship. The MUC control unit can use a single-chip microcomputer; the voltage measurement module realizes the measurement of the external battery voltage, and the switch module It is used to directly control the state of the light source. The small-current zero-voltage-drop charging module and the constant-current fast-charging module can realize small-current and constant-current charging of the battery, respectively, and are used when the output voltage of the solar panel is low and normal.

In the intelligent controller used for solar wind energy charging and lighting control of the utility model, the constant current fast charging module is composed of a constant current source, and the small current zero voltage drop charging module is composed of the output terminal and the output module of the solar panel. It consists of a controllable switch that is directly electrically connected to the input terminal. By adopting a constant current source, the fast constant current charging of the battery can be realized; the small current zero voltage drop charging module adopts a controllable switch, which is used to directly connect the output terminal of the solar panel with the input terminal of the output module, so as to realize direct charging of the battery Charge.

The intelligent controller used for solar wind energy charging and lighting control of the utility model includes a lightning protection unit for protecting the solar panels and the entire intelligent controller. Since the solar panel is located at a higher position without objects around it, it is vulnerable to lightning strikes, and the installation of a lightning protection unit is beneficial to protect the entire controller.

In the intelligent controller used for solar wind energy charging and lighting control of the utility model, the MCU control unit is connected with at least two dial switch modules for selecting the operating state of the controller. The four states of 00, 01, 10, and 11 can be selected through the two-digit dial switch, so that the controller can work in four different modes.

The beneficial effects of the utility model are: the utility model effectively realizes zero-voltage-drop charging at a small current according to the output voltage of the solar panel by setting an MCU control unit, a small current zero-voltage-drop charging module, and a constant-current fast charging module. Choose between high-current constant-current charging mode and high-current constant-current charging mode, which can maximize the use of solar energy, effectively protect the battery, and prolong the service life of the battery. The controller can automatically reduce the output power according to the state of the battery to prevent the battery from entering a deep discharge state, so as to protect the battery from sufficient power in the next or several charging cycles, and ensure that the entire solar led light source system works in a virtuous cycle.

Description of drawings

Fig. 1 is the circuit schematic diagram of the utility model.

In the figure: 1 MCU control unit, 2 lightning protection unit, 3 voltage measurement module, 4 constant current fast charging module, 5 small current zero voltage drop charging module, 6 output module, 7 switch module.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1, the circuit schematic diagram of the utility model is given, which includes an MCU control unit 1, a lightning protection unit 2, a voltage measurement module 3, a constant current fast charging module 4, a small current zero voltage drop charging module 5, Output module 6, switch module 7; the shown MCU control unit 1 is used for data calculation and output of control signals, which can use a single-chip microcomputer. The voltage measurement module 3 is used to realize the measurement of the battery voltage state, and input the measured data into the MCU control unit 1 . The small-current zero-voltage-drop charging module 5 can use a controllable switch whose control terminal is connected to the MCU control unit 1, so that the output terminal of the solar panel and the input terminal of the storage battery are first connected to realize a small current when the output of the solar panel is low. Zero voltage drop charging. The constant current fast charging module 4 is composed of a constant current source. When the output voltage of the solar panel is high, the battery is quickly charged by a large current constant current block through the control of the MCU control unit 1 . The input end of the output module 6 is connected to the output end of the constant current fast charging module 4 and the small current zero voltage drop charging module 5, and the output end is connected to the storage battery. The switch module 7 is used to control the connection state between the storage battery and the light source through the control of the MCU control unit 1 .

The input ends of the shown constant current fast charging module 4 and the small current zero voltage drop charging module 5 are also connected to the output end of the wind power generator, so that the wind energy can also be stored and stored in the presence of a wind power generator. use.

The intelligent controller for solar wind energy charging and lighting control of the present invention can adopt the following charging method, including the following steps: (a). First, when the output voltage of the solar panel is low, the MCU control unit (1) Control the small-current zero-voltage-drop charging module (5) to directly connect the output terminal of the solar panel with the charging input terminal of the battery to realize the low-current zero-voltage drop charging of the battery and play a role in repairing the external battery; (b). Then , when the output voltage of the solar panel is high, the MCU control unit (1) controls the constant current fast charging module (4) to perform constant current fast charging of the battery, so as to supplement the battery in the shortest time; ( c). Finally, when it is detected that the voltage of the battery reaches 102-120% of the rated voltage, it adopts the floating charging mode of constant voltage and small current, so as to protect the battery to the maximum while realizing charging. In step (a), the judgment standard is that the output voltage of the solar panel is lower than 90% of its rated voltage; in step (b), the judgment standard is that the output voltage of the solar panel is greater than or equal to 90% of its rated voltage; in step (c ) is judged by the battery voltage reaching 105% of the rated voltage of a single cell.

The utility model adopts the artificial intelligence and the charging control module to charge the storage battery according to the power generation curve of the solar panel, adopts the low current and zero voltage drop charging in the initial stage, and can repair the over-discharged storage battery, and the high current constant current fast charging in the middle section is the best Quickly meet the power deficit replenishment, and the constant voltage control of the floating charging section enables the battery plates to be fully exchanged. Minimize the air output to protect the battery plate and minimize the loss.

After the system is powered on, first check the system voltage and turn on the light for 10 seconds; at the same time, check the output voltage of the solar panel to judge whether it is day or night. When the voltage of the solar panel is lower than 1.66V, it will enter the lighting program after 15 seconds. The lighting program is divided into four states, and the selection of different states is determined by the state of the two-digit dial switch. For example:

1. When the DIP switch is 00, it is the construction status program; half power output is used to protect the battery and LED light source, and it is used to reduce the loss of battery and LED lamps during the construction stage.

Function: Power off at 50% power for 10 hours.

2. When the DIP switch is 01, it is the acceptance status program; the full power output is used to test the acceptance of the light source lighting status. It is used for the technical inspection of the system's solar panels, batteries and lamps during the acceptance stage.

Function: Shut down after 10 hours of 100% power supply.

3. When the DIP switch is set to 02, it is the smart 1 working state program; in this state, it will work at 70% power for 1 hour before the light is turned on, work at full power for the next 2 hours, and work at 70% power for the next 2 hours The power works, and the second half power works until the light is turned off at dawn.

The controller intelligently detects the battery voltage throughout the whole process, and automatically reduces the output power when the voltage is lower than 80% of the rated voltage in rainy days, so as to prevent the battery from entering a deep discharge state, so as to protect the battery from sufficient power in the next or several charging cycles to make the entire solar led The light source system enters a virtuous cycle.

4. The dial switch is 11, which is the intelligent 2-state program; it works at full power for the first 4 hours, and at half power for the next 6 hours. The controller intelligently detects the battery voltage throughout the whole process, and automatically reduces the output power when the voltage is lower than 80% of the rated voltage in rainy days, so as to prevent the battery from entering a deep discharge state, so as to protect the battery from sufficient power in the next or several charging cycles to make the entire solar led The light source system enters a virtuous cycle.

Claims (4)

1. An intelligent controller for solar and wind energy charging and lighting control, including an MCU control unit (1) for data calculation and control, a voltage measurement module (3) for detecting the battery, and a switch directly connected to the light source The module (7) is characterized in that it also includes a small current zero-voltage drop charging module (5) for charging the battery, a constant current fast charging module (4) and an output module (6) for connecting to the battery ; The input and output terminals of the small current zero voltage drop charging module are respectively connected to the output terminal of the solar panel and the input terminal of the input module; the input terminal of the constant current fast charging module (4) is connected to the solar panel and/or The output ends of the wind power generators are all connected to each other, and the output ends are connected to the output module. 2. The intelligent controller for solar wind energy charging and lighting control according to claim 1, characterized in that: the constant current fast charging module (4) is composed of a constant current source, and the small current zero voltage drop charging The module (5) is composed of a controllable switch that can directly connect the output end of the solar panel with the input end of the output module (6). 3. The intelligent controller for solar wind energy charging and lighting control according to claim 1 or 2, characterized in that it includes a lightning protection unit (2) for protecting the solar panels and the entire intelligent controller. 4. The intelligent controller for solar wind energy charging and lighting control according to claim 1 or 2, characterized in that: the MCU control unit (1) is connected with at least two Bit DIP switch module.

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