Design of a Darrieus-Savonius Wind Turbine Incorporating Rotary and Linear Generating Systems Using Scotch Yoke Mechanism with IoT Monitoring

This study presents the design of a Darrieus-Savonius wind turbine integrated with rotary-linear generator. The system combines the aerodynamic upgrades of the Darrieus rotor with the self-starting capability of the Savonius rotor, coupled with a rotary-linear generator to enhance power generation. Both the rotary and linear generators use a gear train to amplify rotational and linear motion for additional power output. The linear generator incorporates a Scotch -Yoke mechanism, which works alongside the rotary generator. The wind turbine system also features IoT -based wireless monitoring for real-time data acquisition, using INA219 sensors to measure current, voltage, and power, with the Blynk App for remote monitoring. The system was tested under both controlled and uncontrolled wind conditions, and its performance was simulated in MATLAB Simulink for theoretical output prediction. During the uncontrolled test, three setups (morning, noon, and afternoon) were tested, with ANOVA analysis showing significant differences in power generation due to varying wind speeds, especially higher speeds in the afternoon. In the controlled test, the system was tested in a closed environment using an industrial fan simulating wind speeds of 2.4m/s, 3.2m/s, and 3.6m/s. The results indicated significant differences in power output, with system efficiencies of 33.27%,28.42%, and 27.59% for each wind speed, respectively.