Results 11 to 20 of about 84,912 (252)

Analytically derived fixed termination time for stepwise inertial control of wind turbines—Part I: Analytical derivation

International Journal of Electrical Power & Energy Systems, 2020
Abstract Type-3 (Double fed induction generator, DFIG) and type-4 (full rated power converter connected) wind turbines (WTs) can participate in frequency control of power systems using stepwise inertial control (SIC) by releasing kinetic energy stored in rotors into the grid. During SIC, the rotor speed decreases as a part of a primary frequency drop,
Bao, Weiyu, Ding, Lei, Liu, Zhifan, Zhu, Guofang, Kheshti, Mostafa, Wu, Qiuwei, Terzija, Vladimir   +6 more
openaire   +3 more sources

Hybrid Reference Function for Stable Stepwise Inertial Control of a Doubly-Fed Induction Generator [PDF]

Journal of Electrical Engineering and Technology, 2016
Upon detecting a frequency event in a power system, the stepwise inertial control (SIC) of a wind turbine generator (WTG) instantly increases the power output for a preset period so as to arrest the frequency drop. Afterwards, SIC rapidly reduces the WTG output to avert over-deceleration (OD).
Dejian Yang, Jinsik Lee, Kyeon Hur, Yong Cheol Kang   +3 more
openaire   +2 more sources

Stepwise Inertial Control of a Doubly-Fed Induction Generator to Prevent a Second Frequency Dip [PDF]

Journal of Electrical Engineering and Technology, 2015
To arrest a frequency nadir, a stepwise inertial control (SIC) scheme generates a constant active power reference signal of a wind turbine generator (WTG) immediately after a disturbance and maintains it for the predetermined time. From that point, however, the reference of a WTG abruptly decreases to restore the rotor speed for the predefined period ...
Mose Kang, Jinsik Lee, Kyeon Hur, Sang Ho Park, Youngdo Choy, Yong Cheol Kang   +5 more
openaire   +2 more sources

Stepwise inertial control of a wind turbine generator to minimize a second frequency dip [PDF]

Journal of International Council on Electrical Engineering, 2016
AbstractWind turbine generators (WTGs) in power systems with high wind penetration levels are encouraged or forced to participate in frequency control. A stepwise inertial control (SIC) scheme instantly increases WTG output to arrest the frequency drop for a preset period upon detecting a disturbance.
Dejian Yang, Jinsik Lee, Yong Cheol Kang
openaire   +2 more sources

Effective Inertial Response With New Coordinated Control for Multiple WPPs

IEEE Access, 2022
This paper proposes a new coordinated control for multiple wind power plants (WPPs) based on two stepwise inertial control (SIC) methods to effectively release the kinetic energy of the permanent magnet synchronous generators (PMSGs) and improve their ...
Sunghoon Lim, Donghee Choi, Jung-Wook Park   +2 more
doaj   +2 more sources

Analytically derived fixed termination time for stepwise inertial control of wind turbines—Part II: Application strategy

International Journal of Electrical Power & Energy Systems, 2020
Abstract By applying stepwise inertial control (SIC) on wind turbines (WTs), a secure system frequency response after large active power imbalances in the system can be achieved. In Part I of this paper (Ding et al., submitted for publication), a novel approach for determining when to terminate the SIC is presented.
Guo, Yichen, Bao, Weiyu, Ding, Lei, Liu, Zhifan, Kheshti, Mostafa, Wu, Qiuwei, Terzija, Vladimir   +6 more
openaire   +3 more sources

A Novel Classification of Coronal Plane Knee Joint Instability Using Nine-Axis Inertial Measurement Units in Patients with Medial Knee Osteoarthritis

Sensors, 2023
The purpose of this study was to propose a novel classification of varus thrust based on gait analysis with inertial motion sensor units (IMUs) in patients with medial knee osteoarthritis (MKOA).
Hiroaki Tsukamoto, Kimio Saito, Hidetomo Saito, Hiroaki Kijima, Manabu Akagawa, Akira Komatsu, Takehiro Iwami, Naohisa Miyakoshi   +7 more
doaj   +1 more source

Gaussian Distribution-Based Inertial Control of Wind Turbine Generators for Fast Frequency Response in Low Inertia Systems

IEEE Transactions on Sustainable Energy, 2022
Accordingto recent grid codes, large-scale wind turbines (WTs) are required to provide fast frequency response (FFR). The existing stepwise inertial control methods suggest immediate incremental power injection by WTs, followed by the abrupt over ...
M. Kheshti, Shuyue Lin, Xiaowei Zhao, L. Ding, Minghui Yin, V. Terzija   +5 more
semanticscholar   +1 more source

Power systems with high renewable energy sources: A review of inertia and frequency control strategies over time [PDF]

, 2020
Traditionally, inertia in power systems has been determined by considering all the rotating masses directly connected to the grid. During the last decade, the integration of renewable energy sources, mainly photovoltaic installations and wind power ...
Fernández Guillamón, Ana, Gómez Lázaro, Emilio, Molina García, Ángel, Muljadi, Eduard   +3 more
core   +2 more sources

Toward Intelligent Inertial Frequency Participation of Wind Farms for the Grid Frequency Control

IEEE Transactions on Industrial Informatics, 2020
Evolving dynamics of modern power systems caused by high penetration of renewable energy sources increased the risk of failures and outages due to declining power system inertia.
M. Kheshti, L. Ding, W. Bao, Minghui Yin, Qiuwei Wu, V. Terzija   +5 more
semanticscholar   +1 more source