Journal ArticleDOI
Comparison of the response of doubly fed and fixed-speed induction generator wind turbines to changes in network frequency
Janaka Ekanayake,Nick Jenkins +1 more
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TLDR
In this paper, a doubly fed induction generator (DFIG)-based wind turbine is used to control a restraining torque on the rotor according to a predetermined curve with respect to the rotor speed.Abstract:
Synchronous and fixed-speed induction generators release the kinetic energy of their rotating mass when the power system frequency is reduced. In the case of doubly fed induction generator (DFIG)-based wind turbines, their control system operates to apply a restraining torque to the rotor according to a predetermined curve with respect to the rotor speed. This control system is not based on the power system frequency and there is negligible contribution to the inertia of the power system. A DFIG control system was modified to introduce inertia response to the DFIG wind turbine. Simulations were used to show that with the proposed control system, the DFIG wind turbine can supply considerably greater kinetic energy than a fixed-speed wind turbine.read more
Citations
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Journal ArticleDOI
Frequency control and wind turbine technologies
TL;DR: In this paper, the impact of wind turbine inertial response characteristics on frequency control of small isolated power systems is discussed. But, due to differing electromechanical characteristics, this inherent link is not present in wind turbine generators.
Journal ArticleDOI
High-Power Wind Energy Conversion Systems: State-of-the-Art and Emerging Technologies
TL;DR: The most successful generator-converter configurations are addressed along with few promising topologies available in the literature from the market based survey, and the past, present and future trends in megawatt WECS are reviewed in terms of mechanical and electrical technologies, integration to power systems, and control theory.
Journal ArticleDOI
Dynamic Frequency Control Support by Energy Storage to Reduce the Impact of Wind and Solar Generation on Isolated Power System's Inertia
TL;DR: In this paper, the authors used dynamic simulations to study the provision of such a dynamic frequency control support by energy storage systems in the French island of Guadeloupe with large shares of wind or solar generation, and showed that fast-acting storage, by acting as a synthetic inertia, can mitigate the impact of these sources on the dynamic performance of the studied island grid in the case of a major generation outage.
Proceedings ArticleDOI
Virtual synchronous generators
Johan Driesen,K. Visscher +1 more
TL;DR: In this paper, the authors proposed to add virtual rotational inertia to the distributed generators to stabilize the grid frequency by adding a short-term energy storage to the generator, combined with a suitable control mechanism for its power electronics converter.
Journal ArticleDOI
Inertia response and frequency control techniques for renewable energy sources: A review
TL;DR: This paper reviews several inertia and frequency control techniques proposed for variable speed wind turbines and solar PV generators and includes inertia emulation, fast power reserve, and droop techniques, which are used to release the RESs reserve power at under frequency events.
References
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Journal ArticleDOI
Control of DFIG wind turbines
TL;DR: In this paper, the authors discuss the control of variable speed using doubly fed induction generators (DFIG) in wind turbines, which are constructed from a wound rotor asynchronous machine.
Proceedings ArticleDOI
NGC experience with frequency control in England and Wales-provision of frequency response by generators
TL;DR: In this paper, the frequency control strategy in England and Wales, the role of the Grid Code and monitoring systems in facilitating service delivery, as well as frequency control measures under abnormal operating conditions.
Journal Article
Control of Doubly Fed Induction Generator (DFIG) Wind Turbines
TL;DR: In this article, the authors introduce the principles of doubly-fed induction generators (DFIGs) and present PQ control and direct torque control (DTC) of DFIGs.
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Participation of Doubly Fed Induction Wind Generators in System Frequency Regulation
R.G. de Almeida,João Peças Lopes +1 more