Results 1 to 10 of about 2,326,754 (267)

Super-Low Friction Electrification Achieved on Polytetrafluoroethylene Films-Based Triboelectric Nanogenerators Lubricated by Graphene-Doped Silicone Oil

open access: yesMicromachines, 2023
The novel proposal of Wang’s triboelectric nanogenerator (TENG) has inspired extensive efforts to explore energy harvesting devices from the living environment for the upcoming low-carbon society.
Junzhao Chen   +3 more
doaj   +1 more source

Frequency Stabilization of AC Microgrid Clusters: An Efficient Fractional Order Supercapacitor Controller Approach

open access: yesEnergies, 2022
An autonomous microgrid is often formed by incorporating distributed generators into the distribution system. However, distributed generators have less inertia compared to traditional synchronous generators, and can cause the system frequency to become ...
Md. Shafiul Alam   +6 more
doaj   +1 more source

Towards Wearable-Inertial-Sensor-Based Gait Posture Evaluation for Subjects with Unbalanced Gaits

open access: yesSensors, 2020
Human gait reflects health condition and is widely adopted as a diagnostic basisin clinical practice. This research adopts compact inertial sensor nodes to monitor the functionof human lower limbs, which implies the most fundamental locomotion ability ...
SEN QIU   +10 more
doaj   +1 more source

Impact of Secondary Control Design on the Microgrid Domain of Stability Considering Reactive Power Sharing

open access: yesIEEE Access, 2023
The basic objective of microgrid primary control is to preserve microgrid stability. On the other hand, microgrid secondary control has been proposed for ensuring reactive power-sharing and restoring the frequency and voltages of the microgrid. Therefore,
Ahmed Lasheen   +5 more
doaj   +1 more source

Grid frequency control. Secondary frequency control tuning taking into account distributed primary frequency control [PDF]

open access: yesIEEE PES General Meeting, 2010
A new method developed and applied to tune Secondary Control Loop (SCL) for grid frequency control is presented.
J L Aguero, M C Beroqui, F Issouribehere
openaire   +1 more source

Inertia Response Coordination Strategy of Wind Generators and Hybrid Energy Storage and Operation Cost-Based Multi-Objective Optimizing of Frequency Control Parameters

open access: yesIEEE Access, 2021
Due to the high penetration of renewable energy resources in microgrids (MGs), the grid inertia becomes low which leads to the grid to be vulnerable to large disturbances.
Tohid Rahimi   +5 more
doaj   +1 more source

Modelling of variable-speed refrigeration for fast-frequency control in low-inertia systems

open access: yesIET Smart Grid, 2020
In modern power systems, shiftable loads contribute to the flexibility needed to increase robustness and ensure security. Thermal loads are among the most promising candidates for providing such service due to the large thermal storage time constants ...
Johanna Vorwerk   +4 more
doaj   +1 more source

Transmission of Frequency Balance Instructions and Secure Data Sharing Based on Chaos Encryption in Smart Grid-Based Energy Systems Applications

open access: yesIEEE Access, 2021
Data communication security between power systems, which has become a chronic problem in the classical network, is characterized by the application of information communication technology (ICT) in modern network models.
Mehmet Rida Tur, Hidayet Ogras
doaj   +1 more source

Very Short-Term Power System Frequency Forecasting

open access: yesIEEE Access, 2020
Power system frequency plays a pivotal role in ensuring the security, adequacy, and integrity of a power system. While some frequency response services are automatically delivered to maintain the frequency within the stipulated limits, certain cases may ...
Ogun Yurdakul   +3 more
doaj   +1 more source

A Hierarchical Cooperative Frequency Regulation Control Strategy of Wind-Storage-Load in a Microgrid Based on Model Prediction

open access: yesEnergies, 2023
In order to give full play to the frequency regulation ability of multiple types of resources such as wind power, energy storage, and controllable load in a microgrid, this paper proposes a hierarchical cooperative frequency regulation control strategy ...
Yicong Wang   +7 more
doaj   +1 more source

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