Design of Supervisory System Based on CAN Bus for Wind Power Plant
The design of the real-time state supervisory system based on the CAN (controller area network) bus for wind power plants is presented, including the network structure of the whole system, the design of hardware and software. The supervisory system has four layers, namely, the data acquisition layer, the data processing layer, the data transport layer and the user layer. The electricity data that are processed by the industrial computers are transmitted by the CAN bus to top-layer computer to be managed and displayed. This system has been put into operation in a wind power plant in Guangdong and achieved favorable effects.