Prototype implementation of real time W-CAN driver for hub to nacelle wireless communication in wind turbine

摘要

In today's world, renewable energy is the important energy source and in renewable energy "wind energy" plays vital role. Where wind turbines are placed in remote places and the operation and maintenance services (OMS) are plays key role to getting maximum availability and minimum breakdowns of wind turbine. To minimize the breakdowns in wind turbine, it is important to provide reliable and robust control system. Where communication between controllers plays key role in control system. In wind turbine, the frequency of occurrence of communication failed errors between rotating Hub and stationary Nacelle is causes of increase in breakdown in Wind Turbine. So, to implement W-CAN (Wireless Controller Area Network), where the CAN protocol gives reliable and robust communication between pitch controllers in HUB and Wireless Bluetooth over CAN protocol provide communication between Rotating hub and stationary nacelle which minimizes the communication failed errors. This system is implemented by using LPC1769, FreeRTOS, CAN (Controller Area Network), Bluetooth Protocol, LwIP (Light Weight Internet Protocol) Protocol and Motors. Today real-time communication is one of the key features in distributed embedded control systems. Using FreeRTOS, control system performance will be improved. FreeRTOS comprises CAN & LwIP protocol stack which transfer real time data from hub microcontroller node to nacelle microcontroller node. The Sensor acts as input source to this hub node and microcontroller nodes in compliance of FreeRTOS that includes the Real Time CAN driver which is used for secured and robust data transfer. Real-Time LwIP protocol stack is implemented on top of FreeRTOS to transfer the data to supervisory control and data acquisition (SCADA) System Application on Host PC. In this system, based on LwIP stack the data will be transferred from Turbine nacelle microcontroller Node to the PC Host SCADA application. SCADA application is used for data monitoring and controlling the operation. Hence with the help of this proposed system data acquisition and control of distributed embedded applications will be improved.