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Practical framework for frequency stability studies in power systems with renewable energy sources
(IEEE-Inst Electrical Electronics Engineers, 2020)
The transition from power systems dominated by synchronous machines to systems based on converter-based generation technologies (CGTs), is weakening currently robust power systems by reducing system inertia with the ...
Methodological approach for defining frequency related grid requirements in low-carbon power systems
(IEEE, 2020)
Moving towards low-carbon electricity systems through the massive deployment of
renewable energy sources (RES) presents a unique opportunity to combat climate change, but it also poses
enormous technical challenges, ...
Conformer determination of stabilized triphenyl phosphonium acyl ylides by infrared spectroscopy
(2009)
Stretching frequencies of acyl groups of stabilized triphenyl phosphonium ylides with ester, keto or cyano groups depend in part on the orientations of the acyl groups, syn or anti, with respect to phosphorus. Frequencies ...
Robust Unit Commitment Including Frequency Stability Constraints
(MDPI AG, 2016)
An increased use of variable generation technologies such as wind power and photovoltaic generation can have important effects on system frequency performance during normal operation as well as contingencies. The main ...
On polymorphism for discrete evolutionary dynamics driven either by selection or segregation distortion
(Springer, 2018-05)
We revisit some problems arising in the context of multiallelic discrete-time and deterministic evolutionary dynamics driven first by fitness differences and then by segregation distortion. In the model with fitness, we ...
Molecular structures and preferred conformations of stabilized keto diester phosphonium ylides
(2011)
Triphenylphosphonium ylidic keto diesters with a nonylidic ester group, Ph3PC(CO2CH2CH3)COCO 2CH2CH3, 1, and Ph3PC(CO 2CH2CH3)COCH2CO2CH 2CH3, 2, have the keto group syn and the ylidic ester acyl group anti to phosphorus. ...
Infrared spectroscopy and ab initio computation in conformer determination of keto ester and diketo triphenylphosphonium ylides
(Elsevier, 2009)
For stabilized triphenylphosphonium keto ester ylides acyl stretching frequencies of the anti ester group from HF/6-31G(d) calculations fit experimental values with Scale Factor, SF = 0.866, as estimated earlier for the ...
Microgrid stability definitions, analysis, and examples
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
This document is a summary of a report prepared by the IEEE PES Task Force (TF) on Microgrid Stability Definitions, Analysis, and Modeling, IEEE Power and Energy Society, Piscataway, NJ, USA, Tech. Rep. PES-TR66, Apr. 2018, ...
Communication Requirements in Microgrids: A Practical Survey
(IEEE, 2020)
Progress in Microgrid (MG) research has evolved the MG concept from classical, purely MG power networks to more advanced power and communications networks. The communications infrastructure helps control and manage the ...
Communication requirements in microgrids: a practical survey
(IEEE, 2020)
Progress in Microgrid (MG) research has evolved the MG concept from classical, purely MG power networks to more advanced power and communications networks. The communications infrastructure helps control and manage the ...