Dynamic Analysis of Wind Farm With Different Types of Wind Turbines

• Main Authors: Jhan, Yun-Sheng, 詹昀陞
• Other Authors: Huang, Pei-Hwa
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/81876878062846410640

碩士 === 國立臺灣海洋大學 === 電機工程學系 === 102 === With more penetration of wind energy from onshore and offshore wind farms, wind generation will thus be exerting more influences on the original power system. The main purpose of this thesis is to study two commonly adopted offshore wind turbine types, namely the doubly-fed induction generator and the full converter wind turbine. These two types of wind turbines are to be set as the offshore wind farm generating machines to compare their performances in the system. First of all, the power flow and voltage variation are investigated with the existent onshore wind farm included in the system. Secondly, the impacts on the system with offshore wind farm further incorporated into system are examined. Finally, transient responses of the two kinds of wind turbines under three-phase fault are analyzed to verify their ride-through capabilities. Results show that onshore wind farm have less impact on system because the capacity of the onshore wind farm is relatively small; while on the other hand, the offshore wind farm has much more influence on the power system and the performance of related transmission equipment needs upgrading. Moreover, the wind farm with full converter wind turbine is capable of providing more reactive power as compared to the doubly-fed induction generator, so that the full converter wind turbine can return to a steady state within a shorter time.