Results 21 to 30 of about 985,505 (212)

Optimal Secondary Frequency Regulation With ON-OFF Loads in Power Networks

IEEE Transactions on Control Systems Technology, 2022
Load side participation can provide support to the power network by appropriately adapting the demand when required. In addition, it enables an economically improved power allocation. In this study, we consider the problem of providing an optimal power allocation among generation and on-off loads within the secondary frequency control timeframe.
Andreas Kasis, Stelios Timotheou, Marios Polycarpou   +2 more
openaire   +4 more sources

A constrained wind farm controller providing secondary frequency regulation: An LES study

Renewable Energy, 2019
Active power control for wind farms is needed to provide ancillary services. One of these services is to track a power reference signal with a wind farm by dynamically de- and uprating the turbines. In this paper we present a closed-loop wind farm controller that evaluates 1) thrust coefficients on a seconds-scale that provide power tracking and ...
Boersma, Sjoerd, Doekemeijer, Bart M, Siniscalchi-Minna, Sara, van Wingerden, Jan-Willem   +3 more
  +6 more sources

Optimal Primary Frequency Regulation Control Strategy for Wind Farms to Prevent Secondary Frequency Drop [PDF]

Advances in Computer and Materials Scienc Research
As the share of wind power in the power generation structure increases, the demand for effective frequency regulation using wind turbines also grows. Wind turbines typically participate in frequency regulation by reducing rotor speed. However, extended operation at low speeds can lead to efficiency losses, which necessitate measures to disengage from ...
Kuiye Chen, Lu Miao, Deyang Chen, Yingjie Qin, Wenqing Jian, Kaiyue Duan   +5 more
openaire   +2 more sources

Secondary Frequency and Voltage Control of Islanded Microgrids via Distributed Averaging [PDF]

IEEE Transactions on Industrial Electronics, 2015
In this work we present new distributed controllers for secondary frequency and voltage control in islanded microgrids. Inspired by techniques from cooperative control, the proposed controllers use localized information and nearest-neighbor communication
Bullo, Francesco, Dorfler, Florian, Guerrero, Josep M., Shafiee, Qobad, Simpson-Porco, John W., Vasquez, Juan C.   +5 more
core   +4 more sources

Model‐based receding horizon control of wind farms for secondary frequency regulation [PDF]

Wind Energy, 2017
AbstractIn this study, we propose the use of model‐based receding horizon control to enable a wind farm to provide secondary frequency regulation for a power grid. The controller is built by first proposing a time‐varying one‐dimensional wake model, which is validated against large eddy simulations of a wind farm at startup.
Shapiro, Carl R., Bauweraerts, Pieter, Meyers, Johan, Meneveau, Charles, Gayme, Dennice F.   +4 more
openaire   +4 more sources

Secondary Frequency Regulation Strategy With Fuzzy Logic Method and Self-Adaptive Modification of State of Charge

IEEE Access, 2018
Battery storage has been adopted to coordinate with generators in automatic generation control (AGC). In this paper, a control strategy of battery storage involved in secondary frequency regulation is proposed.
Peiqiang Li, Zhuangxi Tan, Yanji Zhou, Canbing Li, Ruo Li, Xuezhong Qi   +5 more
doaj   +2 more sources

Analysis and Control Parameters Optimization of Wind Turbines Participating in Power System Primary Frequency Regulation with the Consideration of Secondary Frequency Drop [PDF]

Energies
With the increasing integration of wind energy into power systems, maintaining frequency stability has become a significant challenge. To address the issue of secondary frequency drop caused by wind turbines exiting the primary frequency regulation of ...
Ketian Liu, Zhengxi Chen, Xiang Li, Yi Gao   +3 more
doaj   +2 more sources

Optimal Distributed Control for Secondary Frequency and Voltage Regulation in an Islanded Microgrid

IEEE Transactions on Industrial Informatics, 2019
This paper proposes an optimal distributed control strategy for the coordination of multiple distributed generators in an islanded microgrid (MG). A finite-time secondary frequency control approach is developed to eliminate the frequency deviation and maintain accurate active power sharing in a finite-time manner.
Yinliang Xu, Hongbin Sun, Wei Gu, Yan Xu, Zhengshuo Li   +4 more
openaire   +4 more sources

A dual-driven predictive control for photovoltaic-diesel microgrid secondary frequency regulation

Applied Energy, 2023
Photovoltaic (PV) panel generator is inherently fluctuant due to its dependence on weather. If this generator connects to power grids or microgrids (MGs), the frequency of renewable-energy-based power grids or MGs will not be stable. Hence, in this paper, a dual-driven predictive control scheme is proposed to control the frequency to make MGs stable ...
Jinhui Wu, Fuwen Yang
openaire   +4 more sources

Coordinated power tracking for wind farms participating in secondary frequency regulation

International Journal of Electrical Power & Energy Systems
Given the growing significance of wind power integration into power systems, the participation of wind farms in secondary frequency regulation is crucial.
Jini Zhuang, Shiyu Ji, Mingbo Liu
doaj   +2 more sources