TY - RPRT TI - Integration and control of wind farms in the Danish electricity system. Final report AB - The objective of this project have been to establish and develop a generic model for power balancing studies of the Danish power system as is expected to look like in 2025, with a lot of new wind farms integrated. That is, the objective has been to describe the wind-farms interaction with other power generating units, and the wind farms ability to act as a power plant with regard to the power control and the wind farms ability to maintain the power system stability. Therefore, a dynamic model has been set up, which can reflect the active power balancing in case of wind power fluctuations in the system with a huge wind farm penetration. The set up of the Danish network grid includes the interconnections to Norway, Sweden and Germany and takes into account the power production from the central power plants, the decentralized combined heat and power plants, the power production from the wind turbines on-land as well as off-shore and the load. Also the new Great Belt link is simulated; to see how the usage of this link could optimize the power balance situation. The power production from the different units is controlled by an automatic generation controller, where the different units are controlled by use of a so called participation factor, which determines how the power producing units participate in balancing the power. The participations factors should reflect the market behavior and the unit commitment for the power plants. Therefore, the participation factors are made time dependent, to be able to reflect this market behavior in the future use of the model. Further, the possibility to use balance, delta and gradient control in the wind farms is included together with the possibility to include planned power production from the thermal units. In this report different scenarios have been set up, to show the different possibilities with the model. The primary focus has been to see what could happen if a storm is coming up, and the wind turbines suddenly disconnects due to too high wind speed. First simulations, where only the central power plants and the decentralized combined heat and power plants participate in the balancing is performed, then the simulations are extended with the usage of the Great Belt Link and the links to Norway and Sweden, and finally also the usage of delta control in the wind farm and the ability to include planned power for the power plants is used. .From these simulations one can see the importance of using planned power, different control methods for the wind farms and being able to use the connections to our neighboring countries. It is found that this is decisive for the balancing situation in Denmark, and for the possibility to cope with large wind power penetration in the future. (LN) AU - "Bak-Jensen, B [ed.]" AU - "Suwannarat, A" AU - "Chen, Z [Aalborg Univ. Dept. of Energy Technology, Aalborg (Denmark); and others]" KW - "17 WIND ENERGY" KW - "COMPUTERIZED SIMULATION" KW - "DENMARK" KW - "WIND POWER" KW - "WIND TURBINE ARRAYS" KW - "INTERCONNECTED POWER SYSTEMS" KW - "SUPPLY AND DEMAND" KW - "ELECTRIC POWER" KW - "LOAD MANAGEMENT" KW - "CAPACITY" KW - "POWER TRANSMISSION" DO - https://doi.org/ UR - https://www.osti.gov/etdeweb/servlets/purl/1000229 PB - CY - Denmark PY - 2009 DA - 2009-07-01 LA - English J2 - [] VL - C1 - Aalborg Univ., Aalborg (Denmark); Energinet.dk, Fredericia (Denmark); Dong Energy A/S, Copenhagen (Denmark); Risoe DTU, Roskilde (Denmark); Vattenfall A/S, Copenhagen (Denmark) C2 - C3 - NEI-DK-5439 C4 - C5 - Also available at http://www.risoe.dtu.dk/rispubl/NEI/NEI-DK-5439.pdf; OSTI as DE01000229 L3 - Other Information: PSO-2004; 41 figs.; 2 tabs. ER -