{"title":"Maximum power point tracking of a wind turbine driven by synchronous generator connected to an isolated load using genetic algorithm","authors":"M. Lasheen, F. Bendary, M. Sharaf, H. El-Zoghby","doi":"10.1109/SASG.2014.7274278","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274278","url":null,"abstract":"Wind turbine generation is rapidly becoming the preferred renewable source of electric energy. The amount of energy captured from a wind energy conversion system (WECS) depends not only on the prevailing wind at the site, but also on the control strategy used for the WECS. Modeling, control and simulation of a wind turbine conversion system connected to an isolated load are proposed. The wind turbine being considered a variable speed turbine connected to a gear box to move a three phase wound rotor synchronous generator. The variable frequency energy produced by the generator is converted to the 50 Hz power system energy by a full power AC/DC/AC electronic converter. The maximum output power at every wind speed is achieved by selecting a certain inverter modulation index using proportional-integral controller which uses DC link power as feedback signal. The controller gains (Kp and Ki) are optimized using the Genetic Algorithm.","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117029578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ali Alshehri, B. Parrott, Ali Outa, A. Amer, Fadl Abdellatif, H. Trigui, Pablo Carrasco, Sahejad Patel, I. Taie
{"title":"Dust mitigation in the desert: Cleaning mechanisms for solar panels in arid regions","authors":"Ali Alshehri, B. Parrott, Ali Outa, A. Amer, Fadl Abdellatif, H. Trigui, Pablo Carrasco, Sahejad Patel, I. Taie","doi":"10.1109/SASG.2014.7274289","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274289","url":null,"abstract":"This review includes a comparative survey of cleaning mechanisms for solar power plants, with a focus on their application in arid regions. In these regions, dust accumulation can have a severe and detrimental effect on the productivity of solar arrays. The primary concern of this study is to address the need for a commercially viable cleaning solution and present candidate technologies that show promise in enabling solar technologies in the sun-rich, arid regions of the world. In addition to comparing the cleaning mechanisms categorically, specific examples from each category will be referenced to demonstrate the specific attributes of such tools. The survey will focus primarily on currently available product categories for the analysis, while developing technologies are reviewed for their potential strengths and weaknesses. The categories of cleaning solutions considered in this study include the following: manual cleaning, mechanized cleaning, hydraulic cleaning, installed robotic cleaning and deployable robotic cleaning.","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124532978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Flexible analytics for management of grid assets","authors":"J. Coullon, Navin Rego","doi":"10.1109/SASG.2014.7274285","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274285","url":null,"abstract":"This paper presents a case study about an Condition Monitoring project for Asset Management implementing an advanced decision process for maintenance and asset replacement in the QATAR electricity distribution network. It describes the principles used to produce an assessment of the health of the entire fleet of assets, together with the concepts retained to prioritize the interventions on the distribution network equipment. The paper goes through the actual steps taken for the preparation and execution mode of the overall project. It covers the following project phases: · Definition of the problem & business objectives · Process definition and preparation tasks · Presentation of Solutions · Execution phase The project being still in the implementation phase, the conclusions are preliminary but already demonstrate concrete and tangible benefits.","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123177299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ras Al-Khair Industrial City power network capacity and reliability","authors":"M. Arain, Muhammad Azhar","doi":"10.1109/SASG.2014.7274295","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274295","url":null,"abstract":"Ras Al-Kahir Industrial City, which is approximately 80km northwest of Jubail Industrial City on the eastern coast of Saudi Arabia, comprises of world-class complex of metal and minerals industries. To support such a huge industrial complex, a strong and reliable power network is planned by the Royal Commission in coordination with Saudi Electricity Company. The US engineering firm Bechtel Corporation is assisting the Royal Commission in putting in place massive infrastructure facilities including power network for RIC. To supply the RIC industrial power requirements, the Royal Commission is building three (3) major 380/115/33kV substations and associated overhead power lines for interconnection with SEC power network. Two (2) of these substations are under construction; while the third one is under design stage. The RC will design, procure, implement and fund the entire cost of RIC power network in coordination with SEC. After completion the facilities will be handed over to SEC for operation and maintenance as per the prevailing RC asset transfer policy. The substations are strategically located to supply the industries' power requirement. The primary industries will be supplied at 380kV either directly from SEC grid or from the RIC substations at 380kV or 115kV level; while secondary and support industries will be fed at 33kV level. Each substation will be designed for a capacity of 1,000 MVA and will consist of 380 kV, 115kV and 33kV voltage levels to supply the industries as per their power requirements. The substations are interconnected within RIC and with SEC power network. The power network is designed to supply the power to the industries and the community areas under n-1 contingency condition, i.e., during failure or planned outage of one major system element, the system is capable to supply the customers. The main power supply source will be SWCC; while SEC is also planning to acquire a land to develop a power plant in the vicinity. The other nearby SEC plants like Ghazlan, Wasit and MARAFIQ will also share the power supply to the RIC industries. As such, a strong and reliable power network is planned to supply the RIC industrial loads at desired reliability level. The system redundancy and nearby availability of power sources are additional benefits towards the strength of RIC network. The paper discusses the load forecast, system capacity and reliability of the power grid of Ras Al-Khair Industrial City. It also discusses the system redundancy and availability of nearby power sources to supply the metal and mineral industries complex at Ras Al-Khair Industrial City.","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115769309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Chelluri, D. Dolezilek, J. Dearien, A. Kalra, Zafer Korkmaz, Ammad Ali
{"title":"Validating mission-critical ethernet networks for protection, automation, and control applications","authors":"S. Chelluri, D. Dolezilek, J. Dearien, A. Kalra, Zafer Korkmaz, Ammad Ali","doi":"10.1109/SASG.2014.7274298","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274298","url":null,"abstract":"The communications standard IEC 61850-5 identifies fast messages that perform high-speed automation, protection, and interlocking to meet or exceed a transmission time of 3 milliseconds as Type 1A, Performance Class P2/P3. Modern microprocessor-based devices and Ethernet networks routinely meet this requirement when everything is working as expected. One of the most important acceptance criteria (and perhaps least understood) is the maximum transmission time when unexpected things do happen and messages are delayed. Because not all paths in an Ethernet network perform the same, this paper introduces path performance classifications that illustrate the minimum and maximum transfer times between two devices. The telecommunications performance standard IEC 60834-1 is commonly used to evaluate point-to-point high-speed automation and interlocking. It describes the overall operating time between the instant of the change of state at the command input on the source device and the instant of the change of state at the command output on the destination device. This includes propagation time and any additional delays. IEC 60834-1 further defines transmission dependability as the ability to receive each command message within the fixed actual transmission time defined by the application, in this case 3 milliseconds. IEC 61850-5 specifically states that testing and verification of the complete transfer time must be performed during site acceptance testing using the physical devices and network equipment. Methods to test and validate message transmission during normal Ethernet packet delivery as well as during path failure are introduced in this paper based on both Rapid Spanning Tree Protocol (RSTP) and Parallel Redundancy Protocol (PRP).","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126469259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Espinoza, A. Guzman, F. Calero, M. Mynam, Eduardo Palma, Zafer Korkmaz
{"title":"Wide-area synchrophasors protect and control Central America's power system stability","authors":"J. Espinoza, A. Guzman, F. Calero, M. Mynam, Eduardo Palma, Zafer Korkmaz","doi":"10.1109/SASG.2014.7274294","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274294","url":null,"abstract":"The power system in Guatemala is part of the long, interconnected network in Central America that runs from the south of Mexico to Panama. This power system is connected to Mexico in the north and to El Salvador in the south. The power system in El Salvador is connected to the rest of the Central American countries in the south, all the way to Panama. The Guatemalan power system is a transmission corridor for power flowing from the abundant hydrogeneration resources in the southeast of Mexico, as well as a consumer of this power. The Guatemalan wide-area protection scheme (WAPS), called the wide-area supplementary control scheme (SCS), isolates the Guatemalan power system from the power system to the south of Guatemala when the scheme detects unstable operating conditions. This scheme is based on time-synchronized measurements of active power and modal analysis of the active power flow of the interconnection between Guatemala and El Salvador. Phasor measurement and control units (PMCUs) are installed at strategic buses in the Guatemalan power system. The strategic locations include the interconnections to Mexico and El Salvador. Operating modes in the power system that cause instability were identified based on operating experiences of the power system. The scheme detects unstable operating conditions and opens the interconnection with El Salvador to isolate the Guatemalan power system from the rest of Central America. This paper discusses details of the Central American power system, the deployment of PMCUs, a modal analysis-based scheme, and the communications network of the scheme. It also presents events that show how the active power-based and modal-analysis based SCS avoided power system collapse.","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123695135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Role of smart meters in smart grid","authors":"Aseel Al-Saadi, Nayeem Sheikh, Anupam Varm","doi":"10.1109/SASG.2014.7274282","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274282","url":null,"abstract":"Smart Grid is a very comprehensive subject which includes the complete energy business line from Generation to Transmission & Distribution to End-Users. The focus of this paper is on the aspects towards the end of this chain, namely smart meters and energy efficiency. Through this paper we will highlight the tangible benefits of Smart Metering and Energy Auditing, outlining the initiative Saudi Aramco is working on to install Smart Meters across all its houses and buildings.","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122317624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"GRID4EU-Nice Grid project: How to facilitate the integration of Distributed Energy Resources into the local grid?","authors":"R. G. Verdier","doi":"10.1109/SASG.2014.7274297","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274297","url":null,"abstract":"GRID4EU is one of the biggest smart grid projects to be funded by the European Union (27 partners, €54M budget). It comprises 6 demonstrators. The French one is Nice Grid which is a pilot project on photovoltaic-powered neighborhoods funded by the French government and the European Union. Nice Grid is located in the city center and the industrial area of Carros, a medium-sized town close to Nice on the French Riviera. This region is at the far end of high-voltage transmission lines, which creates a weakness in the electricity supply and in the local grid's stability and reliability. The area is also endowed with major sources of renewable energy, most notably solar energy. Nice Grid tests the entire smart grid concept, including the impact of the massive integration of Distributed Energy Resources (DER) on the low voltage grid with respect to constraints and flexibility programs.","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133738367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimal storage sizing for profit maximization of a wind power producer in energy market environment","authors":"A. Aldeek, A. Al-Awami","doi":"10.1109/SASG.2014.7274300","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274300","url":null,"abstract":"This paper proposes an approach to optimally size storage system which will be used by a wind power producer who wants to bid in the Iberian day-ahead energy market. The proposed approach takes uncertainties of wind generation and market prices into consideration. The sizing problem will be treated as an optimization problem with an objective of maximizing the profit and it will be solved using Stochastic Linear programming. Market constraints were taken into account which will affect the decision of investment in Energy Storage System (ESS).","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132137627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transmission congestion management","authors":"I. El-Amin, M. Ahmed, Essam R. Al-Wafi","doi":"10.1109/SASG.2014.7274277","DOIUrl":"https://doi.org/10.1109/SASG.2014.7274277","url":null,"abstract":"Under deregulated environment transmission congestion is managed in many different ways. Most utilities create; update their own rules of how the congestion is managed. The common output in most cases is temporary congestion relief and higher costs of energy to the end user. Transmission congestion problem is studied from different aspects, i.e. congestion relief, energy price reduction, congestion costs and cost recovery or payback period. The proposed method is tested on an 11 bus 380 kV real system. An analysis is carried out in order to evaluate the payback period for permanent congestion removal.","PeriodicalId":395633,"journal":{"name":"2014 Saudi Arabia Smart Grid Conference (SASG)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121381853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}