scholarly journals A Review of Wireless and PLC Propagation Channel Characteristics for Smart Grid Environments

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
Sabih Güzelgöz ◽  
Hüseyin Arslan ◽  
Arif Islam ◽  
Alexander Domijan
Keyword(s):  
Smart Grid ◽  
Communication Systems ◽  
Low Voltage ◽  
Path Loss ◽  
Electric Power System ◽  
Channel Characteristics ◽  
Noise Characteristics ◽  
Grid Environments ◽  
Communication Needs ◽  
Smart Grid Communication

Wireless, power line communication (PLC), fiber optic, Ethernet, and so forth are among the communication technologies on which smart grid communication infrastructure is envisioned to be built. Among these, wireless and PLC-based solutions are attractive considering the cost of initial deployment. Wireless communication deployment in smart grid covers a variety of environments such as indoor, outdoor, and electric-power-system facilities. Similar diversity is expected in PLC deployment as well covering low voltage (LV), medium voltage (MV), and high voltage (HV) segments of the grid. In spite of being attractive, wireless and PLC channels are very harsh posing great challenges to performance of communication systems. In proposing solutions to smart grid communication needs, two approaches are likely to be followed. One is based on the use of existing wireless and PLC technologies with some modifications, and the other relies upon developing novel communication protocols particularly addressing the smart grid needs. Both of these approaches require an in-depth knowledge of communication channel characteristics. The aim of this study is to reveal the wireless and PLC channel characteristics of smart grid environments in terms of several parameters such as path loss and attenuation, time dispersion, time selectivity, amplitude statistics, and noise characteristics.

scholarly journals A survey on smart grid communication system

2015 ◽  
Vol 4 ◽  
Author(s):  
Miles H.F. Wen ◽  
Ka-Cheong Leung ◽  
Victor O.K. Li ◽  
Xingze He ◽  
C.-C. Jay Kuo
Keyword(s):  
Smart Grid ◽  
Information And Communication Technologies ◽  
Communication System ◽  
Communication Systems ◽  
Communication Technologies ◽  
Power Electronic ◽  
Recent Developments ◽  
Information And Communication ◽  
Smart Grid Communication ◽  
Generation Power

Concerns with global warming prompted many governments to mandate increased proportion of electricity generation from renewable sources. This, together with the desire to have more efficient and secure power generation and distribution, has driven research in the next-generation power grid, namely, the smart grid. Through integrating advanced information and communication technologies with power electronic and electric power technologies, smart grid will be highly reliable, efficient, and environmental-friendly. A key component of smart grid is the communication system. This paper explores the design goals and functions of the smart grid communication system, followed by an in-depth investigation on the communication requirements. Discussions on some of the recent developments related to smart grid communication systems are also introduced.

scholarly journals Toward More Efficient and More Secure Last Mile Smart Metering and Smart Lighting Communication Systems with the Use of PLC/RF Hybrid Technology

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Piotr Kiedrowski
Keyword(s):  
Smart Grid ◽  
Communication Systems ◽  
Critical Infrastructure ◽  
Low Cost ◽  
Smart Metering ◽  
Smart Meters ◽  
Hybrid Technology ◽  
Smart Lighting ◽  
Last Mile ◽  
Smart Grid Communication

This paper describes the last mile communication system solutions realized in PLC/RF hybrid technology, which is dedicated to Smart Grid communication subsystems, mainly for Smart Metering and Smart Lighting applications. The use of hybrid technology makes the system more efficient and more secure (still being of low cost, in terms of both implementation and operation). This paper proposes a novel parameter, PDR, to describe the performance of the communications in the last mile network. The communications are realized with the use of the narrowband power line communications technique, the low power wireless communications technique, and the combination of them. The cost analysis for the proposed solution is also done. Theoretical considerations, contained in the paper, are the result of the author’s experience in the design, implementation, and operation of the last mile Smart Grid communication systems, realized in the narrowband PLC or 433/868 MHz radio technology. These communication systems were developed for data acquisition and distribution between specific terminals, which are Smart Meters or Smart Lanterns. The aim of this paper is to outline superiorities of the hybrid technology, from which the most important is a low layer protection of the sensitive critical infrastructure, which undoubtedly is a last mile Smart Grid communication network.

scholarly journals SmartLVGrid Platform—Convergence of Legacy Low-Voltage Circuits toward the Smart Grid Paradigm

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2590
Author(s):  
R. Claudio S. Gomes ◽  
Carlos Costa ◽  
Jose Silva ◽  
Jose Sicchar
Keyword(s):  
Smart Grid ◽  
Power Distribution ◽  
Smart Grids ◽  
Low Voltage ◽  
Electric Power System ◽  
Economic Feasibility ◽  
Distribution Grid ◽  
Strategic Plans ◽  
Low Voltage Circuits ◽  
The Cost

The current electrical system is transitioning towards a new technological model called the smart grid. The transition duration between the traditional Electric Power System (EPS) and the full smart grid depends on well-designed strategic plans, implementing transition models that are as close to smart grids as possible, based on the processes and technological resources available at the time, but always considering their economic feasibility, without which no solution thrives. In this article, we present a method for convergence of the traditional power distribution grid to the smart grid paradigm by retrofitting the legacy circuits that compose this grid. Our results indicate that the application of such a method, through a distributed system platform with integrated technological resources added to the legacy infrastructure, converts these passive grids into intelligent circuits capable of supporting the implementation of a smart grid with a broad scope of functionalities. Based on a novel retrofitting strategy, the solution is free from the cost of replacing or significantly modifying the legacy infrastructure, as verified in deploying other currently available solutions.

scholarly journals Low Altitude UAV Air-to-Ground Channel Measurement and Modeling in Semiurban Environments

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Zhihong Qiu ◽  
Xi Chu ◽  
Cesar Calvo-Ramirez ◽  
César Briso ◽  
Xuefeng Yin
Keyword(s):  
Communication Systems ◽  
Factor Model ◽  
Path Loss ◽  
Propagation Channel ◽  
Channel Changes ◽  
Channel Characteristics ◽  
Air Space ◽  
Multiple Measurements ◽  
Low Altitude ◽  
Different Altitudes

Small- and medium-sized unmanned aerial vehicles (UAVs) can fly for a short distance (<2 km) from a control station in a nonsegregated air space (altitudes < 100 m). It is of great interest to model the propagation channel under such condition, where there is an important influence from the environment. This paper presents multiple measurements carried out in low altitudes with a medium-sized UAV flying over a semiurban environment. Path loss exponent is given based on the measurements done at different altitudes and a height-dependent Rician K factor model is proposed. The results clearly reveal the existence of two propagation zones with very distinct channel characteristics. The breakpoint indicates the height where the condition of the channel changes rapidly. At low altitudes, the obstacles generate a large amount of multipath and the propagation is greatly affected, while at higher altitudes the influence mitigates. Our results are useful for the modeling of low altitude air-to-ground (AG) propagation channels and the performance analysis of UAV-enabling AG communication systems, such as the channel capacity and the throughput.

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