Results 251 to 260 of about 267,926 (301)
Some of the next articles are maybe not open access.
Reactive power capability of unified DFIG for wind power generation
IEEE PES General Meeting, 2010This paper, first, develops the reactive power capabilities of wind power generator and then discusses reactive power ancillary services issues related to the wind farms in the electricity market. Presently, the doubly fed induction generator (DFIG) system, with partial rated power electronic converters in the rotor circuit, is the most popular and ...
S N Singh, J Østergaard, B Singh
openaire +1 more source
Optimal reactive power allocation for power system transfer capability assessment
2006 IEEE Power Engineering Society General Meeting, 2006Power system stability issues have always been of utmost importance and interests. Since the restructuring of power utilities, electric power systems have been strained to operate under much higher stress levels, and closer to their physical and operational limits.
S.H. Goh, T.K. Saha, Z.Y. Dong
openaire +1 more source
Flyback micro-inverter with reactive power support capability
2016 IEEE 17th Workshop on Control and Modeling for Power Electronics (COMPEL), 2016AC modules or micro-inverters (MIC) have increasing importance in photovoltaic (PV) systems. The flyback MIC with a pseudo-dc link (FMICpseudo-dc) is a well-studied topology, in which zero-crossing notching in the output current has been observed. One contribution of this paper is a theoretical analysis and experimental results to explain this zero ...
Edwin Fonkwe +2 more
openaire +1 more source
Optimizing Non-Utility Generating Facility Reactive Power Capability
IEEE Industry Applications Magazine, 2000This article addresses a case study of nonutility generation station designed with two gas turbine generators and one steam turbine generator operating in a combined cycle mode and connected to an existing grid system. This article is based on generator step-up (GSU) transformers with fixed taps that can only be adjusted when the transformer is de ...
Gregory J. Nolan, Karl D. Spiegel
openaire +1 more source
Analytical Approach-Based Reactive Power Capability Curve for DFIG Wind Power Plants
2020 IEEE Industry Applications Society Annual Meeting, 2020To meet grid code requirements, handle steady-state and transient uncertainties, and maintain the system stability and power quality, a wind power plant (WPP) must have adequate reactive power reserve. To estimate reactive power reserve of WPPs, an accurate assessment of the plant-level capacity is crucial.
Md Nasmus Sakib Khan Shabbir +3 more
openaire +1 more source
Reactive power capability of doubly fed asynchronous generators
Electric Power Systems Research, 2008Abstract While synchronous generator reactive power capability has been extensively treated in the bibliography, reactive capability of doubly fed asynchronous generator (DFAG) has not yet been studied. This kind of generator is widely used in wind energy, and its reactive power capability must be known in order to plan the reactive capability of ...
D. Santos-Martin +2 more
openaire +1 more source
Capability chart for the planning of reactive power sources
Proceedings of 8th Mediterranean Electrotechnical Conference on Industrial Applications in Power Systems, Computer Science and Telecommunications (MELECON 96), 2002The planning for reactive power sources can be set in the same logical framework as the planning for other components of the system by describing the ability of the system to face the load demand by means of the capability chart of the system. A reliability index is defined based on the capability chart, thus giving evidence to the role played by ...
LOSI, Arturo +3 more
openaire +1 more source
Dual stator induction generator with controllable reactive power capability
2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), 2014Dual stator winding induction generators (DSWIG) can provide controlled excitation and hence offer a brushless alternative to traditional synchronous machines or doubly fed induction machines (where a 2 nd supply is injected to the rotor through a converter-inverter systems).
Saptarshi Basak +2 more
openaire +1 more source
Wind Power Generation Planning by Utilizing the Reactive Power Capabilities of Generators
2017 Asian Conference on Energy, Power and Transportation Electrification (ACEPT), 2017The paper presents a new wind power generation planning framework by considering the reactive power capabilities of generators. The motivation is to maximize the utilization of renewable power hosting capacity without violating the security constraints of distribution networks.
Nand K. Meena +3 more
openaire +1 more source
2019 4th International Conference on Power and Renewable Energy (ICPRE), 2019
The characteristics of distributed generators (DGs) are its reactive power control capacity and fuzzy feature, which bring great effect to reactive power optimization of distribution network. The reactive power control capacity of PV station and wind turbine driven doubly-fed induction generator is considered, and trapezoidal fuzzy number is used to ...
Liu Wenxue +7 more
openaire +1 more source
The characteristics of distributed generators (DGs) are its reactive power control capacity and fuzzy feature, which bring great effect to reactive power optimization of distribution network. The reactive power control capacity of PV station and wind turbine driven doubly-fed induction generator is considered, and trapezoidal fuzzy number is used to ...
Liu Wenxue +7 more
openaire +1 more source