Results 1 to 10 of about 9,101,005 (318)

Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation

open access: yesEnergies, 2017
In an electric power grid that has a high penetration level of wind, the power fluctuation of a large-scale wind power plant (WPP) caused by varying wind speeds deteriorates the system frequency regulation. This paper proposes a power-smoothing scheme of
Hyewon Lee   +4 more
doaj   +1 more source

Frequency-Power Control of VSWTG for Improved Frequency Regulation

open access: yes, 2020
With increasing wind energy penetration and impending grid codes, it is important to enable wind-based power plants to provide sensitive frequency response in grids that may experience irregular frequency fluctuations with noise induced. Transient low-frequency deviations are handled by inertial control, while active power frequency response controller
Asma, Aziz,, Aman, Than Oo,
openaire   +3 more sources

Frequency pressure regulation in water supply systems

open access: yesWater Supply, 2013
In water supply systems, pressure management in most cases is proven to be the most cost-effective activity related to water loss control. As an advanced method of pressure control, it is possible to use variable frequency drives for centrifugal pump control.
Halkijević, Ivan   +2 more
openaire   +3 more sources

An Optimized Hybrid Fractional Order Controller for Frequency Regulation in Multi-Area Power Systems

open access: yesIEEE Access, 2020
Multi-area power systems inhere complicated nonlinear response, which results in degraded performance due to the insufficient damping. The main causes of the damping problems are the stochastic behavior of the renewable energy sources, loading conditions,
E. A. Mohamed   +5 more
semanticscholar   +1 more source

Quantum model prediction for frequency regulation of novel power systems which includes a high proportion of energy storage

open access: yesFrontiers in Energy Research
As the proportion of renewable energy generation continues to increase, the participation of new energy stations with high-proportion energy storage in power system frequency regulation is of significant importance for stable and secure operation of the ...
Wenbo Luo   +4 more
doaj   +1 more source

Novel cascading scheme of VSC‐HVDC with DC voltage synchronisation control for system frequency support

open access: yesIET Generation, Transmission & Distribution, 2021
This paper introduces a novel cascading frequency regulation scheme (CFRS) for VSC‐HVDC to provide strong support for the connected weak AC grid without phase‐locked loop and remote‐communication considering the cost‐effective property. The proposed CFRS
Xiaotian Yuan   +6 more
doaj   +1 more source

Coordinated frequency regulation among asynchronous AC grids with an MTDC system

open access: yes, 2021
With the increasing penetration level of renewable power, the power systems’ inertias are decreasing. To ensure that the frequency is above the threshold of the under frequency load shedding, one effective way is to share the spinning reserves among ...
Huangqing Xiao   +5 more
semanticscholar   +1 more source

Electric Vehicle Aggregator Modeling and Control for Frequency Regulation Considering Progressive State Recovery

open access: yesIEEE Transactions on Smart Grid, 2020
High penetration of renewable energy may cause considerable system frequency deviations. Electric vehicles (EVs) offer alternative potentials for frequency regulation with rapid responding speed.
Mingshen Wang   +4 more
semanticscholar   +1 more source

Distributed Control of Battery Energy Storage Systems for Improved Frequency Regulation

open access: yesIEEE Transactions on Power Systems, 2020
In this paper a distributed control strategy for coordinating multiple battery energy storage systems to support frequency regulation in power systems with high penetration of renewable generation is proposed.
Tianqiao Zhao, A. Parisio, J. Milanović
semanticscholar   +1 more source

Parallel current-controlled synchronverters for voltage and frequency regulation in weak grids

open access: yesThe Journal of Engineering, 2019
The emulation of synchronous machines is becoming an attractive solution to provide virtual inertia and voltage support to weak grids and microgrids, representing an alternative to conventional current-injection control strategies.
Javier Roldán-Pérez   +2 more
doaj   +1 more source

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