Development of Microcontroller for Wind Solar Complementary Controller

Development of Microcontroller for Wind Solar Complementary Controller

Technical parameters for circuit board development:

This controller is designed specifically for high-end small-scale wind solar complementary systems and is suitable for wind solar complementary street lighting systems and wind solar complementary monitoring systems. Its main functions are as follows:

1) This controller is a high-performance wind solar complementary controller that can simultaneously control wind turbines and solar cells to charge and discharge batteries. During charging, a high-resolution PWM method is used to limit voltage and current of the battery, effectively extending its lifespan;

2) Equipped with a * * * speed detection and control module, it can view the fan speed in real time and achieve overspeed braking according to the set safety speed limit.

3) Equipped with two DC output interfaces, each output current can reach 10A; Users can set three different output modes for each channel separately, namely: light control on/off, light control on/off, and normally open.

4) Equipped with fan MPPT (power point tracking) function. This system uses leading algorithms to automatically search for power points and achieve the conversion of wind energy to electrical energy. After testing, this controller can improve charging efficiency by more than twice compared to traditional controllers.

5) Equipped with customized LCD, users can easily view and set the controller status through the human-computer interaction interface:

The items that can be viewed include: battery voltage, fan speed, fan voltage, fan current, fan power, photovoltaic voltage, photovoltaic current, photovoltaic power, 1st output mode, and the shutdown time of the 1st output; The second output mode, the turn off time of the second output, the light control on voltage point, the light control off voltage point, day or night indication, battery level status, load status, as well as fault states such as overvoltage, undervoltage, overload, and short circuit.

The items that can be set include: the first output mode and the shutdown time of the first output; The second output mode, the turn off time of the second output, the optical control on voltage point, and the optical control off voltage point.

6) Unique solar charging circuit with low loss and low heat generation. Adopting an open circuit unloading method effectively extends the lifespan of solar cells.

7) Complete security protection functions, including:

U Solar cell anti backcharge protection

U Solar cell anti reverse connection protection

U Solar current limiting protection

U Battery overcharge and over discharge protection

U battery open circuit protection

U battery anti reverse connection protection

U load overload and short circuit protection

U Lightning protection

U Fan current limiting protection

U fan overspeed protection

U Fan automatic and manual brake protection

U controller temperature monitoring, over temperature protection

U load overvoltage protection

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