碩士 / 國立成功大學 / 電機工程學系 / 105 / This thesis presents the stability-analysis results of a system composed of two offshore wind farms (OWFs) connected to two onshore power grids through a multi-infeed high-voltage direct-current (MI-HVDC) system. The OWFs are based on doubly-fed induction generators (DFIGs), and the MI-HVDC system is based on voltage-source converters (VSCs). With the focus laid on the influence of the common tie line in the MI-HVDC system, small-signal stability and transient stability are analyzed by utilizing system eigenvalues and time-domain simulations, respectively. The simulation results show that a VSC-based MI-HVDC system can be more stable than two VSC-based HVDC links which operate independently from each other. In addition, the stability of the studied VSC-based MI-HVDC link can be significantly influenced by the electrical parameters of the common tie line.
| Identifer | oai:union.ndltd.org:TW/105NCKU5442104 |
| Date | January 2017 |
| Creators | JanHenzgen, 邊文軒 |
| Contributors | Li Wang, 王醴 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | en_US |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 112 |
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