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Article

Enhancement of Power System Transient Stability by the Coordinated Control between an Adjustable Speed Pumping Generator and Battery

1
Department of Electrical and Electronic Engineering, Kitami Institute of Technology (KIT), Kitami 090-8507, Hokkaido, Japan
2
Hokkaido Electric Power Network Inc., Sapporo 060-0041, Hokkaido, Japan
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(24), 9034; https://doi.org/10.3390/app10249034
Received: 18 November 2020 / Revised: 10 December 2020 / Accepted: 14 December 2020 / Published: 17 December 2020
(This article belongs to the Special Issue Wind Generators: Technology and Trends)
The penetration level of large-scale wind farms into power systems has been increasing significantly, and the frequency stability and transient stability of the power systems during and after a network fault can be negatively affected. This paper proposes a new control method to improve the stability of power systems that are composed of large wind farms, as well as usual synchronous generators. The new method is a coordinated controlling method between an adjustable-speed pumping generator (ASG) and a battery. The coordinated system is designed to improve power system stability during a disconnection in a fixed-rotor-speed wind turbine with a squirrel cage-type induction generator (FSWT-SCIG)-based wind farm due to a network fault, in which a battery first responds quickly to the system frequency deviation due to a grid fault and improves the frequency nadir, and then the ASG starts to supply compensatory power to recover the grid frequency to the rated frequency. The performance of the proposed system was confirmed through simulation studies on a power system model consisting of usual synchronous generators (SGs), an ASG, a battery, and an SCIG-based wind farm. Simulation results demonstrated that the proposed control system can enhance the stability of the power system effectively. View Full-Text
Keywords: adjustable-speed pumping generator; storage battery; power system stability; wind farm; FRT grid code adjustable-speed pumping generator; storage battery; power system stability; wind farm; FRT grid code
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MDPI and ACS Style

Tamura, J.; Umemura, A.; Takahashi, R.; Sakahara, A.; Tosaka, F.; Nakamoto, R. Enhancement of Power System Transient Stability by the Coordinated Control between an Adjustable Speed Pumping Generator and Battery. Appl. Sci. 2020, 10, 9034. https://doi.org/10.3390/app10249034

AMA Style

Tamura J, Umemura A, Takahashi R, Sakahara A, Tosaka F, Nakamoto R. Enhancement of Power System Transient Stability by the Coordinated Control between an Adjustable Speed Pumping Generator and Battery. Applied Sciences. 2020; 10(24):9034. https://doi.org/10.3390/app10249034

Chicago/Turabian Style

Tamura, Junji, Atsushi Umemura, Rion Takahashi, Atsushi Sakahara, Fumihito Tosaka, and Ryosuke Nakamoto. 2020. "Enhancement of Power System Transient Stability by the Coordinated Control between an Adjustable Speed Pumping Generator and Battery" Applied Sciences 10, no. 24: 9034. https://doi.org/10.3390/app10249034

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