Intelligent control on wind farm

Mu Wei, Zhe Chen
2010 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)  
Since the renewable energy is popularly applied in power industry, especially the smart grid is fast developing all over the world during these years, the reliable connection between a wind farm and the main grid has been focused on. Due to the difficult control on the wind energy, the connection with the wind farm makes the grid more vulnerable. The communication technologies have been considered as a solution to solve the problems according to the IEC 61400-25 series protocols. This paper
more » ... ols. This paper presents the significance of communication technologies in wind farm system by the simulations on some practical scenarios. By delivering the signals among WTs (wind turbines) and control centers, they both are able to recognize another side's operation situation and to adjust its own state to realize the optimization. A scenario is designed in this paper, in which a fault occurs in wind farm; then the protection performance are compared between with communication techniques and without communication technology. The characteristics of the communication network corresponding with the wind farm are previously illustrated by OPNET, and then the power system with wind farm is studied by EMTDC /PSCAD. The simulation results are analyzed to draw a conclusion. Index Terms-ISO reference model, LAN (Local Area Network), IEC 61400-25, IED, OPNET, EMTDC/PSCAD. ). Consequently, communication infrastructure allows potentially millions of parties to operate and trade in electricity markets. The application of information and communication technology is a pre-requisite for data exchange between the different market players in the electricity supply chain and for the secure, economic and environmentally operation of Smart Grids. The benefits and impacts of information communication technology deployment for smart grid includes smart metering, online collection of customer data and support to customers' participation in the market, aggregation of distributed generation into virtual power plants, distribution automation (e.g. to enable self healing as the capability of the electricity grid to autonomously identify, localize, manage and repair an unforeseen disturbance or interruption), consistent data management within and between the enterprises, and the deployment is a necessary precondition for deployments of .other aspects of smart grid [1] . The trends of communication technology in smart grid are not only on 'plug and play' and interoperability, but also the communication moves down to the customers for decentralized energy management, smart metering and distribution automation [1]. This paper reviews the significance of communication technology applied in wind farms according to the IEC 61400-25 [2], which defines the communications between wind power plant components (e.g. turbines) and actors (e.g. SCADA Systems). Some simulations are carried out under some specific scenarios to demonstrate the impact of communication technology in wind power system. The contents of the paper are presented respectively as follows. Section II introduces the wind farm communications, the relative communication models according to the IEC61400-25, and the corresponding communication requirements in wind power system. In Section Ⅲ , the possible communication technologies, in Data Link Layer according to the ISO reference model, are proposed and compared respectively and Ethernet is chosen in this paper as the Data Link Layer access technique. Then in Section Ⅳ the simulation scenarios and discussions of the Ethernet-based communication network employed in wind farm power system is conducted by OPNET and EMTDC/PSCAD. Finally in Section Ⅴ the conclusion is given. II. WIND FARM COMMUNICATIONS A. Wind turbine monitoring and wind farm communication A wind farm is constituted with wind turbines in feeders, which contains wind turbines in different topologies, such as radial topology, bifurcated radial topology, feeder-subfeeder
doi:10.1109/isgteurope.2010.5638907 dblp:conf/isgteurope/WeiC10 fatcat:lvnlrswqqzdbjmjlj2qbeympuu