碩士 / 國立成功大學 / 電機工程學系碩博士班 / 98 / This thesis employs an integrated offshore wind farm and seashore wave energy farm connected to utility grid as the studied system while a variable frequency transformer (VFT), a flywheel energy-storage system (FESS), and a high-voltage direct current (HVDC) link are utilized as the control devices for the studied system, respectively. The q-d axis equivalent-circuit model is developed to establish the models for the offshore wind farm, the seashore wave energy farm, the VFT, the FESS, and the HVDC link under three-phase balanced loading conditions. A proportional-integral-derivative (PID) type damping controller for the VFT, the FESS, and the HVDC link is designed using pole-assignment approach based on modal control theory, respectively. Steady-state characteristics of this studied system under different values of wind speed, axial velocity of air, and grid voltage are examined. Dynamic simulations of the studied system subject to various values of wind speed, torque disturbance, etc. as well as a three-phase fault are also carried out. It can be concluded from the simulation results that the proposed three control devices have different effects on the power flow and stability of the studied system.
| Identifer | oai:union.ndltd.org:TW/098NCKU5442186 |
| Date | January 2010 |
| Creators | Shen-RonJan, 詹昇融 |
| Contributors | Li Wang, 王醴 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 184 |
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