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Reactive Power Capability of Wind Turbines Based on Doubly Fed Induction Generators
IEEE Transactions on Energy Conversion, 2011With the increasing penetration of wind turbines (WTs) grid utilities require extended reactive power supply capability not only during voltage dips but also in steady-state operation. WTs with doubly fed induction generators (DFIG) are able to control active and reactive power independently.
Engelhardt, Stephan +4 more
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Reactive Power Compensation Capabilities of V2G-Enabled Electric Vehicles
IEEE Transactions on Power Electronics, 2017Vehicle-to-grid (V2G) paradigm is a way of executing services in favor of the grid by electric vehicles (EVs) with bidirectional battery chargers (BBC). The V2G service that has attracted the major interest is the exchange of active power for load leveling purposes.
BUJA, GIUSEPPE +2 more
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Bridgeless Cuk-Derived Single Power Conversion Inverter With Reactive-Power Capability
IEEE Transactions on Power Electronics, 2020This paper presents a bridgeless Cuk-derived single power conversion inverter with reduced number of power components, which has reactive-power capability. The secondary diode of the conventional unfolding-type Cuk inverter is integrated into one of the secondary-side switches in the bridgeless Cuk-derived configuration, which reduces the number of ...
Byeongcheol Han +2 more
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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
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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
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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
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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
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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
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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
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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
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