Results 21 to 30 of about 2,389,043 (308)

Optimization models of the supply of power structures’ organizational units with centralized procurement [PDF]

open access: yes, 2013
Management of the state power structures’ organizational units for materiel and technical support requires the use of effective tools for supporting decisions, due to the complexity, interdependence, and dynamism of supply in the market economy.
Sysoiev, Volodymyr Viktorovych
core   +1 more source

POWER UNITS AND POWER SUPPLY SYSTEMS IN UAV

open access: yesAviation, 2014
One of the major tasks in the process of designing future unmanned aerial vehicles is the appropriate choice of a propulsion system and a power source. Depending on the role and size of a given UAV, the following engines are used: electric, jet, turbine and piston (combustion). The following paper also analyses the faultiness of UAVs.
Cwojdziński, Leszek, Adamski, Mirosław
openaire   +3 more sources

Optimal Dispatch of Multi-Energy Integrated Micro-Energy Grid: A Model Predictive Control Method

open access: yesFrontiers in Energy Research, 2021
In order to reduce the impacts caused by large-scale renewable energy resources accessing the utility grid, the micro-energy grid system, as a natural extension of the microgrid in the energy internet era, is proposed and developed to provide a new ...
Xurui Huang   +5 more
doaj   +1 more source

PEP Magnet Power Supply Systems [PDF]

open access: yesIEEE Transactions on Nuclear Science, 1977
The dc electrical requirements of the PEP magnets fall mainly into two categories: (1) high power and current of single polarity and (2) low-power bi-polar. The first category will be thyristor-chopper controlled off common 600 V dc busses. The second group will utilize continuously controlled push-pull transistor actuators.
openaire   +2 more sources

Multi-area joint scheduling model considering peak load regulating of nuclear power

open access: yesEnergy Reports, 2021
As the use of clean energy such as wind power and nuclear power has been increasing, the base load operation of nuclear power units usually means huge pressure for local power systems in regulating peak demand.
Zhi Cai   +5 more
doaj   +1 more source

Reliability modelling of uninterruptible power supply using probability tree method [PDF]

open access: yes, 2006
The unreliability of public power lines have led to the need of uninterruptible power supply (UPS). Utility power failures will cause unacceptably high risk to the profitability, existence and growth of the vital aspect of business that depends heavily ...
Jovanovic, S., Lo, K.L., Rahmat, M.K.
core   +1 more source

A new grounding model for complex soil environments [PDF]

open access: yesE3S Web of Conferences, 2019
The purpose of arranging the grounding electrode is to discharge large currents, such as fault current and ensure the transmission line operate safely.
Pan Chong   +5 more
doaj   +1 more source

Adaptive model predictive control for grid‐forming converters to achieve smooth transition from islanded to grid‐connected mode

open access: yesIET Generation, Transmission & Distribution, 2023
One of the main capabilities of grid‐forming converters is the ability to operate in both islanded and grid‐connected modes. The grid‐forming converters work autonomously and behave as an AC voltage source when they are isolated from the bulk power ...
Jianhui Meng   +7 more
doaj   +1 more source

Validity verification of trajectory sensitivity calculation by convolution method in single-machine infinite bus system

open access: yesZhejiang dianli, 2023
Based on the single-machine infinite bus system, the validity of trajectory sensitivity calculation by convolution method is deeply analyzed, which provides support for using wide area measurement system to calculate the trajectory sensitivity and ...
FENG Zhi, AN Jun, HAN Lei, SHEN Qingye
doaj   +1 more source

Short‐term photovoltaic power prediction based on MDCM‐GA‐LSTM model

open access: yesThe Journal of Engineering, 2022
In recent years, photo‐voltaic (PV) system has become one of the most potential renewable energy power generation technologies because of its many advantages.
Tianze Liu   +3 more
doaj   +1 more source

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