Remote Controlling And Monitoring System In Wind Farms Based On Wireless Network

The fossil fuel we are using now pollutes the environment and the resources will run out in a predictable time. New energy resources are the key solution to the problem. Wind power outstands among new energy because it’s environment-friendly, sustainable and easily harvested.The wind farms in China gather around coastline and islands whose geological conditions are harsh and where few people lives. The turbines are distributed in low density in large quantity, causing large distance between turbines and making them hard to be maintained. Therefore remote controlling and monitoring is a must.Cables are used widely in wind farms in China, consuming human and financial resources. The cables are limited by geological conditions and are hard to be rewired. To solve this, some companies and laboratories used wireless technology. However, current solutions didn’t solve the’last meter’problem:wind turbines are connected to a hub through wires before connected to wireless networks.Besides network itself, Supervisory Control And Data Acquisition (SCADA) system is needed. SCADA in China emerged later than others and it is put into the Program for Tackling Key Problems.To solve these problems, the article proposed an integrated and optimized solution where hardware, protocol, embedded software and SCADA are design and optimized together. The system proposed integrated wireless communication into the DCDC controller, enabled remote DCDC parameters monitoring, remote power-up and power-down, remote online DCDC controller parameter setting and Remote ADC calibration. Meanwhile it proposed an asymmetric single-chip dual-channel network, designed a pseudo-frequency-hopping protocol and software on the controller and hosts and the SCADA. It is tested on real LLC circuit and results are satisfactory. Low-frequency wireless protocol designing method, new embedded software design pattern and SCDA structure and framework are also proposed for guidance.