Patent
Wind turbine generator and method of controlling the same
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TLDR
In this article, a wind turbine generator calculates a marginal active power based on the difference between a predetermined rotational speed lower limit value, which is obtained by providing the parallel-off rotation speed with a predetermined margin, and a measured value of the shaft rotational power command value.Abstract:
An object of the present invention is to, if a frequency decrease has occurred in a power system, avoid a trip in a wind turbine generator and reliably contribute to recovery of the frequency of the power system. The present invention provides a wind turbine generator that, if a predetermined frequency decrease that requires PFR has occurred in the power system, calculates a marginal active power based on the difference between a predetermined rotational speed lower limit value, which is obtained by providing the parallel-off rotational speed with a predetermined margin, and a measured value of the shaft rotational speed, and generates an active power command value based on the marginal active power.read more
Citations
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Proceedings ArticleDOI
A tutorial of wind turbine control for supporting grid frequency through active power control
Jacob Aho,Andrew Buckspan,Jason Laks,Paul Fleming,Yunho Jeong,Fiona Dunne,Matthew J. Churchfield,Lucy Y. Pao,Kathryn Johnson +8 more
TL;DR: An overview of basic wind turbines control systems is provided and recent industry trends and research in wind turbine control systems for grid integration and frequency stability are highlighted.
Patent
Wind Turbine Generator System
TL;DR: In this article, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained to shorten a startup interval to reach a synchronizing condition, and the calculated compensation phase compensation value is used as an initial value for synchronizing at the next synchronizing operation.
ReportDOI
Active Power Controls from Wind Power: Bridging the Gaps
Erik Ela,Vahan Gevorgian,Paul Fleming,Y. C. Zhang,M. Singh,Eduard Muljadi,A. Scholbrook,Jacob Aho,Andrew Buckspan,Lucy Y. Pao,Vikas Singhvi,Aidan Tuohy,Pouyan Pourbeik,D. Brooks,N. Bhatt +14 more
TL;DR: In this paper, the contribution of wind power providing active power control (APC) can benefit the total power system economics, increase revenue streams, improve the reliability and security of the power system, and provide superior and efficient response while reducing any structural and loading impacts that may reduce the life of the wind turbine or its components.
Proceedings ArticleDOI
Combining droop curve concepts with control systems for wind turbine active power control
TL;DR: In this paper, the authors developed and implemented both static and dynamic droop curves to measure grid frequency and output delta power reference signals to a novel power set point tracking control system.
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Grid network gateway aggregation
TL;DR: In this paper, a meter is on a consumer side of a point of common coupling (PCC), and the meter can receive one or more external grid inputs and a few local sensor inputs.
References
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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.
Patent
System and method for operating a wind farm under high wind speed conditions
TL;DR: In this paper, a system and method of operating a wind farm (12), having multiple wind turbine generators (14, 16, 18), at high wind speeds is provided, and a signal is transmitted from the wind turbine generator to a control system (50) based on the monitored wind speeds.
Patent
Wind Turbine Generator System
TL;DR: In this article, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained to shorten a startup interval to reach a synchronizing condition, and the calculated compensation phase compensation value is used as an initial value for synchronizing at the next synchronizing operation.
Patent
Control of small distributed energy resources
Robert H. Lasseter,Paolo Piagi +1 more
TL;DR: In this paper, a method of controlling the output inverter of a microsource in a distributed energy resource system is described, where the inverter reaches maximum output power and minimum operating frequency at the same time, and further comprising using a voltage controller implementing a voltage vs. reactive current droop.
Patent
Method for operating a wind park
TL;DR: In this paper, a data processing device is connected to the control input and is used to adjust the control value within a range of 0-100 % according to the amount of power available from the entire wind part at the output where it is fed into the power network.