Results 161 to 170 of about 1,100 (215)

Predictive value of ultrasonic artificial intelligence in placental characteristics of early pregnancy for gestational diabetes mellitus. [PDF]

Front Endocrinol (Lausanne)
Zhou H, Chen W, Chen C, Zeng Y, Chen J, Lin J, He K, Guo X.   +7 more
europepmc   +1 more source

Hybrid cheetah particle swarm optimization based optimal hierarchical control of multiple microgrids. [PDF]

Sci Rep
Mohamed MAE, Mahmoud AM, Saied EMM, Hadi HA.   +3 more
europepmc   +1 more source

Enabling Efficient Scheduling of Multi-Type Sources in Power Systems via Uncertainty Monitoring and Nonlinear Constraint Processing. [PDF]

Sensors (Basel)
Zhang D, Li Q, Han J, Tian C, Li Y.
europepmc   +1 more source

Earth Grid: Toward a low-carbon energy infrastructure. [PDF]

iScience
Kumar A, He X, Deng Y, Sah B, Singh AR, Kumar P, Bansal RC, Kirtley JL.   +7 more
europepmc   +1 more source

Measurement System and Testing Procedure for Characterization of the Conversion Accuracy of Voltage-to-Voltage and Voltage-to-Current Integrating Circuits for Rogowski Coils. [PDF]

Sensors (Basel)
Kaczmarek M.
europepmc   +1 more source

Performance of ROCOF relays for embedded generation applications

IEE Proceedings - Generation, Transmission and Distribution, 2005
The performance characteristics of rate of change of frequency (ROCOF) relays for embedded generation islanding detection are investigated. The concepts of detection-time versus power-imbalance curve and critical power imbalance are proposed. These concepts are employed to determine the factors that may affect the islanding detection capability of ...
C.M. Affonso, W. Freitas, W. Xu, L.C.P. da Silva   +3 more
openaire   +2 more sources

Sampled Values ROCOF performance methodology breakdown

2022 IEEE International Conference on Environment and Electrical Engineering and 2022 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2022
Intelligent Electrical Power ...
Melo, André Felipe Silva (author), Riquelme-Dominguez, Jose Miguel (author), Gonzalez-Longatt, Francisco (author), Rueda, José L. (author), Palensky, P. (author)   +4 more
openaire   +3 more sources

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Active ROCOF Relay for Islanding Detection

IEEE Transactions on Power Delivery, 2017
Intentional frequency perturbation by recently researched active islanding detection techniques for inverter based distributed generation (DG) define new threshold settings for the frequency relays. This innovation has enabled the modern frequency relays to operate inside the non-detection zone (NDZ) of the conventional frequency relays.
Pankaj Gupta, Pankaj Gupta
exaly   +2 more sources

Synchrophasor-Based ROCOF Measurements: Feasibility in Real-World Scenarios

2018 IEEE 9th International Workshop on Applied Measurements for Power Systems (AMPS), 2018
In modern power systems, Rate of Change of Frequency (ROCOF) is employed in monitoring and control applications. However, a standard approach towards ROCOF measurements is still missing. In this paper, we investigate the feasibility of Phasor Measurement Units (PMUs) deployment in ROCOF -based applications.
Guglielmo Frigo, A. Dcrviskadic, Claudio Narduzzi, Mario Paolone   +3 more
openaire   +2 more sources