Results 61 to 70 of about 7,982,412 (185)

Power Converters Classification and Characterization in Power Transmission Systems [PDF]

open access: yes, 2019
Because of the throng of control strategies based Voltage Source Converters (VSC) recently proposed in the literature; their classification and characterization are becoming a trending topic.
COLAS, Frédéric   +11 more
core   +1 more source

Active-Margin Transmission Power Control for Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2014
An effective transmission power control (TPC) method is proposed and demonstrated, in which an appropriate active margin is directly applied rather than a step-by-step margin as in the conventional TPC method. Active-margin transmission power control (AM-
Byung-Hee Son   +3 more
doaj   +1 more source

Maximum power point tracking for variable-speed fixed-pitch small wind turbines [PDF]

open access: yes, 2009
Variable-speed, fixed-pitch wind turbines are required to optimize power output performance without the aerodynamic controls. A wind turbine generator system is operated such that the optimum points of wind rotor curve and electrical generator curve ...
Jovanovic, Milutin   +7 more
core   +1 more source

Transmission loss allocation through a modified Ybus [PDF]

open access: yes, 2005
A methodology to allocate the active power transmission loss among agents of a power pool is proposed. The approach is based on the inclusion of the admittances equivalent to bus power injections in the bus admittance matrix.
Daniel, JS, Irving, MR, Salgado, RS
core   +1 more source

A joint optimization algorithm based on energy efficiency maximization for massive MIMO systems

open access: yesDianxin kexue, 2017
For the massive multi-cell multi-input multiple-output (MIMO) communication uplink system with unknown channel status information,a resource allocation algorithm which jointly optimizes the pilot sequence length,pilot symbol power and data symbol power ...
Haiyan CAO   +4 more
doaj   +2 more sources

PRICE TRANSMISSION, MARKET POWER AND RETURNS TO SCALE: A NOTE [PDF]

open access: yes
In this paper, we aim to model the vertical relation between retailers and suppliers in the food industry whereby retailers exercise seller power in their relation with consumers and buyer power in their relation with producers.
Xiuqing Wang, Tony Rayner, Habtu Tadesse
core  

The role of transmission investment in the coordination between generation and transmission in the liberalized power systems [PDF]

open access: yes
This paper examines how transmission coordinates with generation to the long term in a liberalized power system. We rely on a modular analysis to separate the mechanisms of coordination between generation and transmission of electricity into distinct ...
Jean-Michel Glachant   +3 more
core   +4 more sources

Optimization Algorithm of Dynamic Control Strategy based on CVT Efficiency

open access: yesJixie chuandong, 2020
The traditional Continuously Variable Transmission (CVT) dynamic control strategy takes the maximum engine power as the control target. As CVT efficiency varies greatly under different loads, the maximum engine power cannot guarantee the maximum driving ...
Wang Zhihong   +4 more
doaj  

Dynamic impedance compensation for wireless power transfer using conjugate power

open access: yesAIP Advances, 2018
Wireless power transfer (WPT) via coupled magnetic resonances has been in development for over a decade. However, the frequency splitting phenomenon occurs in the over-coupled region.
Suqi Liu, Jianping Tan, Xue Wen
doaj   +1 more source

Effect of Tree Quantity and Distribution on the Electric Field under Transmission Lines

open access: yesApplied Sciences
The electric field of transmission lines has serious negative impacts on residents’ production and life with the expansion of high voltage engineering.
Ziyu Wang   +5 more
doaj   +1 more source

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