Dynamic Control and Sensing Architecture for Experimental Intracycle Pitching in Cross-Flow Turbines
Résumé
Developed under the OPTIDE project, this work presents the design, implementation and validation of a modular distributed control system for intracycle blade pitch actuation in vertical-axis crossflow turbines. A modular microcontroller network, interfaced with dual brushless DC motors per blade, ensures coordinated pitch actuation. Communication with an external reference generator is established via CAN, SPI, and Wi-Fi (UDP), enabling synchronized trajectory updates and sensor feedback. To validate performance, a 3D-printed half-blade prototype with BLDC motors and 64:1 gearboxes was constructed. The results demonstrate accurate trajectory tracking and low-latency closedloop operation, confirming the viability of the proposed control, sensing, and communication framework for future experimental deployment.
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