Results 81 to 90 of about 46,909 (228)
Active distribution power system with multi-terminal DC links [PDF]
, 2015 A fast power restoration operational scheme and relevant stabilizing control is proposed for active distribution power systems with multi-terminal DC network in replacement of the conventional normal open switches. A 9-feeder benchmark distribution power
Chen, Dong, Xu, Lie, Zhang, Wendian
core +2 more sources
The new poor law and the health of the population of England and Wales
The Economic History Review, EarlyView.Abstract We estimate the impact of reductions in poor law expenditure on rural life expectancy and mortality rates in England and Wales following the 1834 Poor Law Amendment Act. Given the scale of cuts imposed, our estimates imply 8–10 per cent increases in mortality at ages 1–4 years and 2–4 per cent falls in rural expectation of life at birth.
David Green +3 more
wiley +1 more source
Stability enhancement of a hybrid micro-grid system in grid fault condition [PDF]
, 2012 Low voltage ride through capability augmentation of a hybrid micro-grid system is presented in this paper which reflects enhanced reliability in the system. The control scheme involves parallel connected multiple ac-dc bidirectional converters.
15th International Conference on Electrical Machines and Systems, ICEMS 2012 +4 more
core
Reactive power minimization of dual active bridge DC/DC converter with triple phase shift control using neural network [PDF]
, 2014 Reactive power flow increases dual active bridge (DAB) converter RMS current leading to an increase in conduction losses especially in high power applications.
Aboushady, Ahmed +2 more
core +2 more sources
Cardiac arrhythmia prevalence and risk factors in 24‐h electrocardiograms of sedentary horses
Equine Veterinary Journal, EarlyView.Abstract Background Cardiac arrhythmias are common in horses, but their clinical relevance remains controversial. Objectives To describe prevalence and identify risk factors for arrhythmias that may warrant additional screening in a sedentary mixed‐breed population of horses. Study Design Prospective cross‐sectional.
Lauren T. Maas +6 more
wiley +1 more source
ElectricityTo address the critical issue of low reliability caused by fault impacts in large-scale wind farms transmitting power over long distances via flexible DC transmission systems, this study proposes a collaborative solution.
Hao Wang, Wenyue Zhou, Yiping Luo
doaj +1 more source
Frequency and fundamental signal measurement algorithms for distributed control and protection applications [PDF]
, 2009 Increasing penetration of distributed generation within electricity networks leads to the requirement for cheap, integrated, protection and control systems.
Burt, G.M. +2 more
core +1 more source
Annual Research Review: Interventions for young children exposed to trauma
Journal of Child Psychology and Psychiatry, EarlyView.The landscape of trauma‐focused interventions for young children has evolved significantly, though substantial gaps remain. Early childhood trauma exposure occurs during sensitive periods of brain development with potential lifelong consequences. However, these periods also present unique opportunities for intervention to redirect trajectories toward ...
Katherine L. Guyon‐Harris +1 more
wiley +1 more source
International Journal of Electrical Power & Energy SystemsTo enhance frequency support and fault ride-through capabilities of MMC-HVDC system, an MMC multi-time scale coordinated control strategy considering the regulation dead zone is proposed, which achieves wide-area coordinated complementarity of multiple ...
Shouqi Jiang +5 more
doaj +1 more source
Enhanced AC voltage and frequency control of offshore MMC station for wind farm connection [PDF]
, 2018 Connecting large offshore wind farms using HVDC transmission systems based on modular multilevel converter (MMC), the offshore AC voltage and frequency are regulated by the offshore MMC station and are important for the stable wind power generation and ...
Jing, Yiran, Li, Rui, Wang, Yi, Xu, Lie
core