Wireless communication systems will be one of the biggest drivers of semiconductor products over the next decade. This paper provides an overview of current developments in this explosive market, looks at future product requirements and relates those needs with technology projections. Three key technologies are discussed: basic semiconductor processes, digital signal processing, and RF systems ...

In this paper, a novel neuro-fuzzy based method combined with a feature selection technique is proposed for online dynamic voltage stability status prediction of power system. This technique uses synchronized phasors measured by phasor measurement units (PMUs) in a wide-area measurement system. In order to minimize the number of neuro-fuzzy inputs, training time and complication of neuro-fuzzy ...

The recent mantra for reorganizing power systems in the U.S. has been to extend the geographic scope of control centers to span several states, utilities and/or grid operators, initially for the purpose of expanding the range of economic transfers and more recently to improve operational reliability, in both cases through the reduction of “seams” at the borders of control areas. In the early da...

in this paper, a novel neuro-fuzzy based method combined with a feature selection technique is proposed for online dynamic voltage stability status prediction of power system. this technique uses synchronized phasors measured by phasor measurement units (pmus) in a wide-area measurement system. in order to minimize the number of neuro-fuzzy inputs, training time and complication of neuro-fuzzy ...

Reliable electricity supply is a fundamental need in industrialized countries. Therefore, it is crucial to be able to keep electric power systems in a secure state, even in case of disturbances. For this reason, electric power systems have been designed with redundancies and are able to guarantee a reliable electricity supply most of the time. However, large blackouts still occur all over the w...

This paper focuses on the impact of extreme weather on power system outages. Extreme weather condition impacts of interest are listed, including both direct and consequential events. Their impact on power system outages are discussed, concerning both blackouts and component failure. Prospects for estimating weather condition impacts on the frequency of blackouts and on equipment and system fail...

This study investigates the stock price reaction of electric energy utility firms to 2003 blackout in Northeast USA and if market was able identify responsible firm. Therefore, we employ event methodology select a sample US-based firms. Although it took commission almost eight months name firm for blackout, investors punished FirstEnergy only two trading days after - were right, as later turned...

Large-scale communications blackouts, such as those carried out by Egypt and Libya in 2011 and Syria in 2012 and 2013, have motivated a series of projects that aim to enable citizens to communicate even in the face of such heavy-handed censorship efforts. A common theme across these proposals has been the use of wireless mesh networks. We argue that such networks are poorly equipped to serve as...

Power system defensive islanding is an efficient way to avoid catastrophic wide area blackouts, such as the 2003 North American Blackout. Finding defensive islands of large-scale power systems is a combinatorial explosion problem. Thus, it is very difficult to find an optimal solution, if it exists, within reasonable time using analytical methods. This paper presents to utilize the computationa...

The recent mantra for reorganizing power systems in the U.S. has been to extend the geographic scope of control centers to span several states, utilities and/or grid operators, initially for the purpose of expanding the range of economic transfers and more recently to improve operational reliability, in both cases through the reduction of “seams” at the borders of control areas. In the early da...