نتایج جستجو برای: power transmission reliability

تعداد نتایج: 835852  

Journal: :JNW 2013
Weiming Tong Xianji Jin Lei Lu

Advanced metering infrastructure (AMI) is considered to be the first step in constructing smart grid. AMI allows customers to make real-time choices about power utilization and enables power utilities to increase the effectiveness of the regional power grids by managing demand load during peak times and reducing unneeded power generation. These initiatives rely heavily on the prompt information...

2014
R. Piccinelli L. Golea

The purpose of this work is the analysis of the uncertainties affecting an electric transmission network with wind power generation and their impact on its reliability. A stochastic model was developed to simulate the operations and the line disconnection and reconnection events of the electric network due to overloads beyond the rated capacity. We represent and propagate the uncertainties rela...

2014
Neethu Sebastian

Bandwidth and power is the most important parameter in every communication system. So the maximum utilization of bandwidth and minimum useful usage of power is achieved with error detection and correction methods. In satellite &space communication channel capacity is degraded as a result of Additive White Gaussian Noise, which are mostly random. Convolutional encoder with Viterbi decoder is a r...

2015
Tohid Akbari Mohammad Tavakoli Bina

This paper presents a method in expansion planning of transmission systems using the AC optimal power flow (AC-OPF). The AC-OPF provides a more accurate picture of power flow in the network compared to the DC optimal power flow (DC-OPF) that is usually considered in the literature for transmission expansion planning (TEP). While the AC-OPF-based TEP is a mixed-integer nonlinear programming prob...

2009
Wu Yin Pei Xiao

There is a big demand for increasing number of subscribers in the fourth generation mobile communication systems. However, the system performance is limited by multi-path propagations and simple power allocations in conventional wireless communication systems. Optimal resource allocation and interference cancellation issues are critical for the improvement of system performance such as throughp...

2001
M. R. Milligan Michael R. Milligan

As electricity markets undergo restructuring, it is becoming apparent that the responsibility for providing power and the ancillary services associated with power generation is being allocated to different entities. Former electric utilities enter spot markets and sign power-delivery contracts, and generating companies bid or otherwise offer electricity for sale. Operating units, such as Region...

2013
Nian Liu Buxiang Zhou Bo Lin Luofang Zhu Ming Liu

The variety of the weather condition in which a transmission and distribution hybrid system resides has a significant impact on the reliability results of power systems; therefore, model is the key point of reliability evaluation when considering weather change. This paper illustrates a model that can be utilized for the evaluation of adequacy in weather conditions, and presents a calculation m...

Journal: :IEEE Journal of Emerging and Selected Topics in Power Electronics 2021

This article aims to incorporate the reliability model of power electronic converters into system analysis. The converter has widely been explored in device- and converter-levels according physics failure However, optimal decision-making for design, planning, operation, maintenance require system-level modeling electronic-based systems. Therefore, this proposes a procedure evaluate systems from...

2012
Naeem Ahmad Abbasi Roger Villemaire Chun-Yi Su Amir G. Aghdam Ali Ghrayeb

Formal Reliability Analysis using Higher-Order Logic Theorem Proving Naeem Ahmad Abbasi, Ph. D. Concordia University, 2012 Traditional techniques used in the reliability analysis of engineering systems have limitations. Paper-and-pencil based analysis is prone to human error and simulation based techniques cannot be computationally one hundred percent accurate. An alternative to these two tradi...

2005
Gentian Jakllari Srikanth V. Krishnamurthy Michalis Faloutsos Prashant Krishnamurthy

Cooperative diversity entails the simultaneous transmission ofinformation by multiple nodes that are in the proximity of each other; this process emulates the functionality of an antenna array. The use of cooperative communications can help combat interference and fading and hence, significantly improve the reliability of the wireless channel without the physical deployment of cumbersome antenn...

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