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The electrical characteristics of a power system connected with a high-capacity offshore wind farm (OWF) can be significantly varied under various wind-speed conditions. This paper demonstrates voltage variations at the point of common coupling (PCC) when a high-capacity OWF is connected to different buses of the neighboring onshore substation of Taiwan Power System (TPS) through three or two submarine...
This paper presents the stability improvement of a multimachine power system connected with a large-scale hybrid wind-photovoltaic (PV) farm using an energy-storage unit based on supercapacitor (SC). The operating characteristics of the hybrid wind-PV farm are simulated by an equivalent aggregated 300-MW wind-turbine generator (WTG) based on permanent-magnet synchronous generator and an equivalent...
This paper presents the power-quality measurement results of a commercial wind farm (WF) connected to Taiwan Power System. This 46-MW Jang-Bin wind farm with twenty-three 2-MW doubly-fed induction generators (DFIGs) is connected to Jang-Bin extra high-voltage (EHV) substation of Taiwan Power Company (TPC) through six feeders and a step-up main transformer. The measured data were recorded from October...
In order to study uncertainty and intermittent characteristics of wind power and wave power, this paper proposes an integrated wind- and wave-power generation system fed to a power grid or connected with an isolated load using a DC micro grid. The studied integrated system consists of a wind-power generator, a wave-power generator, a bidirectional DC/DC converter, and a grid-tied inverter. An energy-storage...
This paper presents the stability analyzed results of an integration of a doubly-fed induction generator (DFIG)-based offshore wind farm (OWF) and a permanent-magnet synchronous generator (PMSG)-based OWF fed to a synchronous generator (SG)-based power system through a hybrid high-voltage direct-current (HVDC) link. The hybrid HVDC link consists of a line-commutated converter (LCC)-based inverter...
This paper presents the simulation results of damping improvement of a doubly-fed induction generator (DFIG)-based offshore wind farm (OWF) connected to a multi-machine power system using a static VAR compensator (SVC). The operating performance of the studied OWF is simulated by an equivalent wind DFIG driven by an equivalent wind turbine (WT) through an equivalent gearbox. A damping controller of...
This paper presents both steady-state and dynamic analyzed results of a hybrid offshore wind and tidal farm connected to an onshore power grid using a flywheel energy storage system (FESS). The performance of the studied offshore wind farm (OWF) is simulated by an equivalent aggregated 80-MW doubly-fed induction generator (DFIG) while the operating characteristics of the studied tidal farm (TF) are...
This paper presents the analyzed results of an integration of an offshore wind farm (OWF) and a seashore wave farm (WAF) connected to an onshore large power grid using a flywheel energy storage system (FESS) to simultaneously achieve power-fluctuation mitigation and dynamic-stability enhancement. The performance of the studied OWF is simulated by an equivalent aggregated 80-MW doubly-fed induction...
This paper presents the analyzed results of an integrated offshore wind farm (OWF) and seashore wave farm (WAF) connected to an onshore large power grid through a variable frequency transformer (VFT) to simultaneously achieve power-fluctuation mitigation and stability enhancement. The performance of the studied OWF is simulated by an equivalent aggregated 80-MW doubly-fed induction generator (DFIG)...
This paper presents the analyzed results of an integrated offshore wind farm (OWF) and seashore wave farm (WAF) connected to an onshore large power grid through a high-voltage direct current (HVDC) link to simultaneously achieve power-fluctuation mitigation and dynamic-stability enhancement. The performance of the studied OWF is simulated by an equivalent aggregated 80-MW doubly-fed induction generator...
This paper presents both steady-state ad transient analyzed results of a hybrid large-scale offshore wind and marine-current farm connected to an onshore power grid via a high-voltage direct current (HVDC) link. The performance of the studied offshore wind farm (OWF) is simulated by an equivalent aggregated 80-MW doubly-fed induction generator (DFIG) while the operating characteristics of the studied...
This paper presents field-measurement results of a small 400-W wind turbine generator (WTG) installed on a commercial 9.8-ton fishing boat to achieve the goal of energy saving. The Darrieus-type WTG consisting of three stainless blades, a coreless permanent-magnet generator (PMG), and a maximum-power-point-tracking controller is employed in this study. The output of the wind PMG is connected to the...
This paper presents field-measurement results of a commercial 400-W wind turbine generator (WTG) installed on a prototype fishing boat to achieve a preliminary study on energy saving of the diesel engine in the fishing boat. The Darrieus-type WTG consisting of three blades made of stainless, a coreless permanent-magnet generator (PMG), and a maximum-power point-tracking (MPPT) controller is employed...
This paper presents steady-state performance analysis of a commercial wind farm in Taiwan through field measurement results and computer simulations. The companion paper in Part II discusses the employment of current-limit reactors and load tap changers on power-quality improvement of the studied wind farm. With twenty-three 2-MW DFIG-type wind turbine generators, this wind farm is connected to the...
This paper designs a damping controller for a superconducting magnetic energy-storage (SMES) unit to simultaneously achieve stability improvement and suppress tie-line active-power variations of a large-scale wind farm (WF) subject to wind-speed fluctuations. A complete system model based on a synchronously rotating reference frame for the studied WF combined with the SMES unit is properly derived...
With the advance in wind turbine technologies, the cost of wind energy becomes competitive with other fuel-based generation resources. Due to the price hike of the fossil fuel and the concern of the global warming, the development of wind power has rapidly progressed over the last decade. The annual growth rate has exceeded 26% since 1990s. Many countries have set goal for high penetration levels...
This paper presents the measured results of flickers generated by a commercial wind power generation system (WPGS) in Taiwan. The studied WPGS consisting of four identical 660 kW wind-turbine induction generators (WTIGs) is connected to an 11.4 kV bus inside a large petroleum-chemical industrial mill located at the middle coast of Taiwan. The field measured flickers contributed by four WTIGs and a...
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