scholarly journals Application of high performance asynchronous socket communication in power distribution automation

2017 ◽  
Author(s):  
Ziyu Wang
Author(s):  
Ibrahim Y. Abualhaol ◽  
Mustafa M. Matalgah

In this chapter, a cooperative broadband relay-based resource allocation technique is proposed for adaptive bit and power loading multiple-input-multiple-output/orthogonal frequency division multiplexing (MIMO-OFDM) system. In this technique, sub-channels allocation, M-QAM modulation order, and power distribution among different sub-channels in the relay-based MIMO-OFDM system are jointly optimized according to the channel state information (CSI) of the relay and the direct link. The transmitted stream of bits is divided into two parts according to a suggested cooperative protocol that is based on sub-channel-division. In this protocol, the first part is sent directly from the source to the destination, and the second part is relayed to the destination through an indirect link. Such a cooperative relay-based system enables us to exploit the inherent system diversities in frequency, space and time to maximize the system power efficiency. The BER performance using this cooperative sub-channel-division protocol with adaptive sub-channel assignment and adaptive bit/power loading are presented and compared with a noncooperative ones. The use of cooperation in a broadband relay-based MIMO-OFDM system showed high performance improvement in terms of BER.


Author(s):  
Renatas Jakushokas ◽  
Mikhail Popovich ◽  
Andrey V. Mezhiba ◽  
Selçuk Köse ◽  
Eby G. Friedman

2013 ◽  
Vol 448-453 ◽  
pp. 2389-2393
Author(s):  
Xi Lin Zhang ◽  
Yan Dong Xia

Equipments for distribution automation terminal and the corresponding back-up power that can be cold started directly without heating equipments in natural environment at -40°C are developed to suit the extremely cold weather in Northeast China. The ultimate goal is to realize normal operation at a temperature ranging from -50°C to +70°C.


2010 ◽  
Vol 45 (3) ◽  
pp. 205-218 ◽  
Author(s):  
Hari Kumar Naidu ◽  
K Thanushkodi

The objective of the study in this paper is to evaluate the advances in telecommunication, Information Technology and networking which offer SCADA Power supply Distribution automation as a solution to improve power distribution efficiencies. This paper also discusses the result of the indigenously developed prototype hardware and software model utilising the latest embedded technology innovation for SCADA Power Distribution Automation Systems for reliable performance of power system. Keywords: SCADA; Distribution management system; GIS, Distribution automation; Embedded system. DOI: 10.3329/bjsir.v45i3.1531Bangladesh J. Sci. Ind. Res. 45(3), 205-218, 2010


Author(s):  
Satya PRAKASH ◽  
Manoj HANS ◽  
Vikas THORAT

The power distribution network has grown complex and vulnerable as it increases its demand. The system's reliability has become a prominent factor for the end-users, although the continuity of supply in the distribution network still remains a challenge. In order to achieve the same distribution, automation came into the picture. The term “Distribution Automation” usually refers to an advanced switching system, which works as a subsystem of the existing network. The purpose of the subsystem is to offer real-time observation and control in distribution networks and electricity market operations. Consequently, the development of an autonomous system for isolating failures and restoring power for the distribution of LV (low voltage)/MV (medium voltage) can be an attractive solution for improving energy facilities' reliability. Advanced management techniques are devices and algorithms used to analyze, diagnose, and predict conditions in a distribution network, as well as to identify and take appropriate corrective actions to eliminate, mitigate, and prevent power outages and power quality problems. To demonstrate the model, we used a PIC16F877, CT microcontroller, and a power supply unit.


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