碩士 / 國立臺北科技大學 / 電機工程系研究所 / 97 / Rapidly global climate is changed in those years, the each government of the world are accelerating the development of renewable energy in order to reduce the carbon dioxide emission, and now wind generation is most competitive and mature of the renewable energy. Taipower company is now assessing the large offshore wind farm plan for Taiwan west coast and outlying island, so large offshore wind farm connects the existing power system and analyzes the system impact result are researched worthily. Finally, to find improvement way out that in order to provide higher system reliability and power quality.
This thesis chooses as analyzing tool by PSS/E 29Version, which in addition to own powerful and fast computing function, but also provide power flow analysis, short current analysis, the establishment of new bus and power transmission line, the establishment of new renewable energy equipment and fault simulation function etc, therefore, the majority of the world used by power companies. The V80(1.8MW) of PSS/E is chose as wind turbine model, its type for the Type B, the component comprises the blades, gear box, wound rotor induction generator, variable resistance and reactive power compensator (fixed capacitor group), the generator frequency and grid frequency are the same because the generator connects to grid straight. Blade have the pitch control function which owns the maximum power point tracking.
For Chang Pin offshore wind farm connects to 2010 Taipower power system of system simulation, the wind farm is mainly constituted by 60 V80, wind speed model chooses the fixed and changed, the main simulation case which comprises power flow analysis, short current, contingency and transient stability simulation etc. Finally, to simulate and analyse the system impact for offshore wind farm connects to different PCC, to find out the better PCC, it will can be referred for power company chooses the offshore wind farm site in the future. From simulation result that it will absorb reactive power from power system when wind farm connects to power system, it results in slight decline in system voltage, the main reason that the V80 doesn’t equip with power electronic compensation equipment and it also doesn’t have the ability for low voltage ride through(LVRT), so that if the system voltage is too low and wind farm has not been disconnected, it will result in damaging for wind turbine. Finally, this thesis analyses for how far fault that results in the wind farm is disconnected from power system, it will can be referred when power company performs the power dispatch in the future.
For Penghu offshore wind farm connects to 2015 Taipower power system of system simulation, the wind farm is mainly constituted by 112 V80, wind speed model chooses the fixed and changed, the main simulation case is the same with 2010. Finally, to simulate and analyse the system impact for the Taiwan side of submarine cable connects to different PCC, to find out the better PCC, it will can be referred for power company chooses the submarine cable site in the future. From simulation result that it will result in the low system voltage of Penghu when one submarine cable be skipped, the main result that the two side of submarine cable are installed the reactors, the value of line charging capacity reduces by half and Penghu doesn’t have power generation equipment, the main improvement way which installs SVC and STATCOM compensation equipment in PCC or wind farm output, at the same time it also help the wind farm to tide over the period of voltage fluctuation. Finally, this thesis analyses for how far fault that results in the wind farm is disconnected from power system, it will can be referred when power company performs the power dispatch in the future.
| Identifer | oai:union.ndltd.org:TW/097TIT05442166 |
| Date | January 2009 |
| Creators | Tung-Hua Chuang, 莊東華 |
| Contributors | 李清吟 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 372 |
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