Performance analysis of WiMAX based Smart grid communication traffic priority model
03 Apr 2014-pp 778-782
TL;DR: A WiMAX based traffic priority model for smart grid connecting Neighborhood Area Network and Home Area Network serving five different applications is proposed and the implications of the cell size, number of users and interpolling interval are analyzed.
Abstract: The ever-increasing demand of electrical energy makes it necessary to develop an efficient load demand management system for the electricity grids so that it gets converted into Smart grid. There are several standardized wireless communication technologies available for various smart grid applications among which (WiMAX) is seen as a well recognized technology able to fulfill the requirements of smart grid's applications namely wide area connectivity and the quality of service (QoS) differentiated services. This paper proposes a WiMAX based traffic priority model for smart grid connecting Neighborhood Area Network (NAN) and Home Area Network (HAN) serving five different applications. Parameters namely overall network delay, throughput and network capacity are studied using OPNET 14.5 and also the implications of the cell size, number of users and interpolling interval (IPT) are analyzed.
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TL;DR: The results indicate that a priority-based scheduler is an appropriate solution for scheduling time-critical smart grid applications, and schedulers should be implemented in such a way that grant sizes smaller than the packet size are avoided.
Abstract: Worldwide interoperability for microwave access (WiMAX) is one of the wireless communication technologies adopted for communication in smart grids. Due to the inherent differences between smart grid and mobile broadband applications, it is important to adjust planning and deployment of wireless technologies, including WiMAX. To this end, WiMAX is being amended to feature a smart grid system profile known as WiGrid. In this paper, we investigate the optimized configuration of this WiGrid profile, i.e., the choice of frame duration, type-of-service to traffic mapping, scheduling strategies, as well as the system architecture, such that smart grid communication requirements are met. The simulation-based evaluation of WiGrid networks with optimized configurations is facilitated through a newly developed WiGrid module for the network simulator-3 environment. Our results indicate that a priority-based scheduler is an appropriate solution for scheduling time-critical smart grid applications. Furthermore, schedulers should be implemented in such a way that grant sizes smaller than the packet size are avoided, and adjusting the uplink/downlink bandwidth ratio to favor uplink traffic is important to achieve the required latency defined for smart grid applications.
58 citations
Cites background from "Performance analysis of WiMAX based..."
...Pertinent discussions in the literature include [12], [16], and [19], which propose a type-of-service to traffic mapping for smart metering via WiMAX, and optimizes...
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Posted Content•
TL;DR: In this article, the authors provide a comprehensive and up-to-date survey on the communication technologies used in the smart grid, including the communication requirements, physical layer technologies, network architectures, and research challenges.
Abstract: With the ongoing trends in the energy sector such as vehicular electrification and renewable energy, smart grid is clearly playing a more and more important role in the electric power system industry. One essential feature of the smart grid is the information flow over the high-speed, reliable and secure data communication network in order to manage the complex power systems effectively and intelligently. Smart grids utilize bidirectional communication to function where traditional power grids mainly only use one-way communication. The communication requirements and suitable technique differ depending on the specific environment and scenario. In this paper, we provide a comprehensive and up-to-date survey on the communication technologies used in the smart grid, including the communication requirements, physical layer technologies, network architectures, and research challenges. This survey aims to help the readers identify the potential research problems in the continued research on the topic of smart grid communications.
39 citations
17 Jul 2016
TL;DR: In this paper, the authors present a testbed for complex interactions between emerging microgrid technologies such as grid-interactive power sources, control systems, and a wide variety of communication platforms and bandwidths.
Abstract: This paper presents a cyber-physical testbed, developed to investigate the complex interactions between emerging microgrid technologies such as grid-interactive power sources, control systems, and a wide variety of communication platforms and bandwidths. The cyber-physical testbed consists of three major components for testing and validation: real time models of a distribution feeder model with microgrid assets that are integrated into the National Renewable Energy Laboratory's (NREL) power hardware-in-the-loop (PHIL) platform; real-time capable network-simulator-in-the-loop (NSIL) models; and physical hardware including inverters and a simple system controller. Several load profiles and microgrid configurations were tested to examine the effect on system performance with increasing channel delays and router processing delays in the network simulator. Testing demonstrated that the controller's ability to maintain a target grid import power band was severely diminished with increasing network delays and laid the foundation for future testing of more complex cyber-physical systems.
25 citations
22 Mar 2017
TL;DR: An overview of work done by the researchers using WiMAX as a good choice of technology for smart grid communication network is presented.
Abstract: In Smart grid network, number of smart meters and other electronic devices such as sensors will generate large quantity of data. Secure and reliable aggregation of this data to the utility center is necessary for monitoring of wide area network and various control functions. This data will also be utilized to determine the overall grid status within appropriate time. Hence secure, reliable, efficient, robust data communication network is important in smart grid. Various wireless communication standards like WiMAX, GSM, GPRS, and UMTS cellular communication, LTE, ZigBee, Bluetooth, and WLAN etc. are experimented to develop smart grid communication network for distribution system. In this paper, we present an overview of work done by the researchers using WiMAX as a good choice of technology for smart grid communication network.
13 citations
Cites background from "Performance analysis of WiMAX based..."
...Effect of cell area, number of smart meters and three inter polling time values on the performance of network is observed [10]....
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TL;DR: This paper derives a mathematical model for devising an advanced metering infrastructure (AMI) in the distribution grid based on PLC technology and proposes an optimization platform for efficiently placing data collectors in such a way that the reliability requirement for the smart grid traffic is ensured and also the installation cost is minimized.
Abstract: Different communication technologies have been suggested for developing the smart grid communication network. Among these communication technologies, power line communication (PLC) has widely been used, as it has a large coverage range and can access remote areas using existing infrastructures. In this paper, we derive a mathematical model for devising an advanced metering infrastructure (AMI) in the distribution grid based on PLC technology. In order to collect the traffic from thousands of smart meters, intermediary data collectors are placed on selected distribution transformers. However, an optimized placement of data collectors is necessary in order to meet the strict latency requirements needed for time-critical traffic from the meters. For this, we first formulate the latency based on the medium access characteristics of the powerline intelligent metering evolution standard. We then propose an optimization platform for efficiently placing data collectors in such a way that the reliability requirement for the smart grid traffic is ensured and also the installation cost is minimized. We apply the devised optimization solution to realistic examples of AMIs, and we show the effectiveness of our approach through numerical performance evaluation.
9 citations
Cites background from "Performance analysis of WiMAX based..."
..., WiMAX and cellular networks [3]–[5], short-range low-data rate wireless technologies, such as IEEE 802....
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References
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20 Jul 2008
TL;DR: In this article, the potential impact that issues related to smart grid will have on distribution system design is discussed, and the design of a smart grid is discussed from a design perspective, such as advanced metering, automation, communication, distributed generation, and distributed storage.
Abstract: There has been much recent discussion on what distribution systems can and should look like in the future. Terms related to this discussion include smart grid, distribution system of the future, and others. Functionally, a smart grid should be able to provide new abilities such as self-healing, high reliability, energy management, and real-time pricing. From a design perspective, a smart grid will likely incorporate new technologies such as advanced metering, automation, communication, distributed generation, and distributed storage. This paper discussed the potential impact that issues related to smart grid will have on distribution system design.
490 citations
TL;DR: It is assumed that time synchronized measurements will be ubiquitously available at all high-voltage substations at very high rates and how this information can be utilized more effectively for real-time operation as well as for subsequent decision making is examined.
Abstract: In this paper we assume that time synchronized measurements will be ubiquitously available at all high-voltage substations at very high rates. We examine how this information can be utilized more effectively for real-time operation as well as for subsequent decision making. This new information available in real time is different, both in quality and in quantity, than the real-time measurements available today. The promise of new and improved applications to operate the power system more reliably and efficiently has been recognized but is still in conceptual stages. Also, the present system to handle this real-time data has been recognized to be inadequate but even conceptual designs of such infrastructure needed to store and communicate the data are in their infancy. In this paper, we first suggest the requirements for an information infrastructure to handle ubiquitous phasor measurements recognizing that the quantity and rate of data would make it impossible to store all the data centrally as done today. Then we discuss the new and improved applications, classified into two categories: one is the set of automatic wide-area controls and the other is the set of control center (EMS) functions with special attention to the state estimator. Finally, given that the availability of phasor measurements will grow over time, the path for smooth transition from present-day systems and applications to those discussed here is delineated.
465 citations
"Performance analysis of WiMAX based..." refers background in this paper
...By SGLM communications, we refer to the flow of data originating at the ESI or relayed from the HAN towards the Distribution Access Point (DAP)....
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...Meter (SM) which is also the Energy Service Interface (ESI) is present in HAN [10], [11]....
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...The two domains of smart grid taken into consideration is the Home Area Network (HAN) and Neighborhood Area Network (NAN)....
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...Home Area Network (HAN) also known as premises network, is defined to support communication information among the electric appliances inside the house....
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25 Jul 2010
TL;DR: In this paper, the authors present various smart grid applications achieved through standardized wireless communication technologies, e.g. IEEE 802.11 based wireless LAN, 802.16 based WiMAX, 3G/4G cellular, ZigBee based on IEEE 802., 802.15 based MobileFi, etc.
Abstract: Two-way seamless communication is the key aspect of realizing the vision of smart grid. There are several standardized wired and wireless communication technologies available for various smart grid applications. With the recent growth in wireless communication, it can offer standardized technologies for wide area, metropolitan area, local area, and personal area networks. Moreover, wireless technologies not only offer significant benefits over wired, such as including low installation cost, rapid deployment, mobility, etc., but also more suitable for remote end applications. Several activities are going on to explore specific applications of these technologies in smart grid environment. This paper presents various smart grid applications achieved through standardized wireless communication technologies, e.g. IEEE 802.11 based wireless LAN, IEEE 802.16 based WiMAX, 3G/4G cellular, ZigBee based on IEEE 802.15, IEEE 802.20 based MobileFi, etc. Moreover, challenges related to each wireless communication technologies have been discussed in brief.
403 citations
TL;DR: It is shown that the communication architecture is versatile enough to serve as a generic solution for smart grids and a combination of gateway and tunneling solutions is proposed which allows a semitransparent end-to-end connection between application servers and field nodes.
Abstract: Smart grids heavily depend on communication in order to coordinate the generation, distribution, and consumption of energy-even more so if distributed power plants based on renewable energies are taken into account. Given the variety of communication partners, a heterogeneous network infrastructure consisting of IP-based and suitable field-level networks is the most appropriate solution. This paper investigates such a two-tier infrastructure and possible field-level networks with particular attention to metering and supervisory control and data acquisition applications. For the problem of network integration, a combination of gateway and tunneling solutions is proposed which allows a semitransparent end-to-end connection between application servers and field nodes. The feasibility of the approach and implementation details are discussed at the example of powerline communication and IP-based networks investigated in the European research project on real-time energy management via powerlines and internet. Nevertheless, it is shown that the communication architecture is versatile enough to serve as a generic solution for smart grids.
349 citations
"Performance analysis of WiMAX based..." refers background in this paper
...Meter (SM) which is also the Energy Service Interface (ESI) is present in HAN [10], [11]....
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TL;DR: In this paper, the authors argue that the towers and infrastructure the carriers are putting in place may ultimately facilitate as many connections with appliances and electric meters as they do downloads of movies and music.
Abstract: Cellphone carriers are racing this year to implement 4G wireless networks so that future smartphones will have access to a fire hose of data. But the towers and infrastructure the carriers are putting in place may ultimately facilitate as many connections with appliances and electric meters as they do downloads of movies and music. The electricity grid, in other words, may be jumping from no G to 4G-and rather soon, according to analysts.
36 citations