PLC-based Pitch Control System for Wind Generations
Realizing accurate and reliable pitch control of blades according to varying wind speed is crucial to ensuring eco-nomic operation of wind turbines.This essay outlines the design of a PLC-based pitch control system.The system was de-signed to send analog signals to the drivers of the three blades through programmable logic controller(PLC)calculated from anemometer-monitored wind speed value,enabling driver-based synchronous control of pitch angle adjusting motor.This was expected to further facilitate tunable utilization of wind energy and improved turbine efficiency.
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