This project presents the design and implementation of a hybrid power generation system using solar, wind, and piezoelectric energy sources with an intelligent microcontroller-based charge control and monitoring unit. The proposed system aims to efficiently harness renewable energy from multiple sources to ensure continuous and reliable power generation. The outputs from the solar panel, wind turbine, and piezoelectric plate are individually conditioned through dedicated charging circuits and integrated to charge a rechargeable battery. A PIC microcontroller is employed as the core control unit of the system. Voltage sensors continuously monitor the voltage levels of the solar, wind, piezo sources, and the battery. These measured voltages are processed by the microcontroller and displayed in real time on an LCD display, providing clear information about the availability and performance of each energy source. The microcontroller also functions as an intelligent charge controller: when the battery reaches its fully charged/discharged condition, the controller automatically disconnects/connect the charging path using a relay, thereby preventing overcharging/overdischarging and enhancing battery life. The stored energy can be utilized for multiple applications such as mobile charging through USB and AC loads via an inverter. LED indicators provide system status, while regulated power supplies ensure stable operation of control circuitry. This hybrid system demonstrates an effective solution for renewable energy utilization, particularly in remote and off-grid applications, by improving energy reliability, efficiency, and system safety.      

Objectives:

  To develop a hybrid power generation system using solar, wind, and piezoelectric energy sources.

  To efficiently harvest and integrate power from multiple renewable sources.

  To monitor solar, wind, piezo, and battery voltages using a microcontroller.

  To display real-time voltage values on an LCD.

  To implement an intelligent battery charge controller to prevent overcharging and discharging.

  To automatically cut off charging using a relay when the battery is fully charged.

  To provide a reliable and continuous power supply for DC and AC loads.

  To promote the use of renewable and eco-friendly energy systems.      

The main blocks of this project are: Wind turbine.

• Solar panels.
• Piezo plate
• Charging Circuit.
• Rechargeable battery.
• Inverter Circuit.
• ON/ OFF switch.
• AC Bulb. CPU Fan, Mobile Charger.
• Regulated power supply.
• PIC microcontroller.
• LCD display.
• Crystal oscillator.
• Reset button.
• LED indicator.
• Relay
• Voltage sensors.

      Software’s used in this project:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

        Regulated power supply:

         

Block Diagram:

     

video: