{"title":"Distribution automation (DA) using supervisory control and data acquisition (SCADA) with advanced metering infrastructure (AMI)","authors":"S. Nunoo, Abel Kwesi Ofei","doi":"10.1109/CITRES.2010.5619797","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619797","url":null,"abstract":"In Ghana, power generation, transmission and distribution are the preserve of utility companies like Volta River Authority (VRA), Ghana Grid Company (GRIDCo) and Electricity Company Ghana (ECG) respectively. The Northern Electricity Department also distributes electric power in the three northern regions and parts of the Brong Ahafo Region. In the transmission system, GRIDCo uses Supervisory Control and Data Acquisition (SCADA) to monitor and control switches and protective devices. ECG also runs part of its system, from the bulk supply point to the feeders feeding the distribution transformers, with SCADA. Unfortunately, there is no SCADA application from the distribution transformer to the consumer end. This paper proposes a SCADA-based Distribution Automation (DA) of utility metering. The findings of the research show that, using DA with Advanced Metering Infrastructure (AMI) solves problems associated with the demerits of the present method of billing. This will improve routine operational efficiency, asset management, reliability, quality of service, and security. It was also realized that the implementation of this project will have to start from the industrial areas since the networks in such localities are mostly better organized, thus needing less rewiring.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125871718","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":"Development and test facilities for grid-connected Distributed Energy Resources","authors":"S. Fairfax, N. Dowling","doi":"10.1109/CITRES.2010.5619776","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619776","url":null,"abstract":"This paper describes a test facility designed and operated by MTechnology, Inc. (MTech) for development and testing of grid-connected Distributed Energy Resources (DER). The facility is capable of testing inverters, loads, and related DER connection equipment up to 500 kVA, with an upgrade to 2000 kVA in progress.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117251858","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":"High penetration and anti-islanding analysis of multi-single phase inverters in an apartment complex","authors":"M. Ropp, J. Cleary, B. Enayati","doi":"10.1109/CITRES.2010.5619860","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619860","url":null,"abstract":"With increasing penetration of multi-inverter photovoltaic (PV) systems into the distribution network, concern is beginning to reemerge regarding the possibility of multi-inverter unintentional islanding. This paper discusses a study to probe anti-islanding and voltage rise issues for a specific hybrid anti-islanding method (common to many commercial inverters) in a proposed high-penetration PV installation at a residential development in Salem, MA. Two sets of studies were run, one involving the specific feeder involved in this installation, and the other a more generic study that deliberately sought the Non-Detection Zone (NDZ) of the hybrid anti-islanding method in the multiple-inverter case. The paper discusses the results of both of these studies, and makes recommendations to assist utilities in deciding when anti-islanding studies might be needed in fielded systems.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129577276","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":"Maximizing societal benefits associated with alternative fuel subsidies: The case of plug-in hybrid electric vehicles","authors":"Samir M. Nazir","doi":"10.1109/CITRES.2010.5619779","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619779","url":null,"abstract":"Plug-in hybrid electric vehicles (PHEVs) have many societal benefits, including improving energy security, economic, environmental, and health benefits. The magnitude of these benefits depends on the location of PHEV deployment. This paper develops and applies a methodology for ranking regions throughout the U.S. based on PHEV benefits. The independent variables in this ranking method include population density, health benefits from reduced ozone pollution, vehicle miles traveled per capita, existence of non-federal policies, and carbon intensity of electricity. By shedding light on how benefits vary across different regions, this research seeks to better inform where to enact government interventions to maximize the benefits of PHEVs.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128215319","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":"Development and test of a four-module 1200 kVA distributed generation power plant","authors":"S. Fairfax, N. Dowling, D. Nichols","doi":"10.1109/CITRES.2010.5619800","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619800","url":null,"abstract":"MTechnology, Inc., was retained to design and develop the power electronics system for a distributed generation power plant. The plant incorporated four 250 kW DC modules. The plant was required to operate both in grid-connect and grid-independent modes, with constraints upon the acceptable transients applied to the plant internal bus during transitions between modes. The transition from grid-connect to grid-independent mode required the plant power control system to assume responsibility for voltage regulation and power balance between generation and plant ancillary loads. Operation in grid-independent mode faced the challenge of starting relatively large compressor and fan loads, variable generation and load power levels, and the requirement to clear faults on the internal plant bus. The inverter controls were designed to supply up to 2x rated continuous output current into low voltage and fault conditions, with minimal disturbance of the DC power flow from the DER modules. This elevated current simplified coordination with protective devices on the customer and utility network.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"77 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131451725","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":"A Monte Carlo method to evaluate electric vehicles impacts in distribution networks","authors":"F. Soares, J. P. Peças Lopes, P. M. Rocha Almeida","doi":"10.1109/CITRES.2010.5619777","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619777","url":null,"abstract":"This paper describes a statistical approach developed for assessing the impacts resulting from EV presence in a given electricity network was developed. The algorithm, developed for this purpose, is based on a Monte Carlo method and can be seen as a planning tool that allows obtaining average values for several system indexes, like buses voltages, branches loading and energy losses. Additionally, it also allows identifying the most critical operation scenarios and the network components that are subjected to more demanding conditions and that might need to be upgraded. The example of a small grid from one of the Azores islands, Flores Island, was used for illustration purposes and two scenarios of EV integration were considered: 25% and 50% of the current light vehicles fleet replaced by EV.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114583464","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":"Turning a generators Mvar's into MW's by use of Static Var Compensator","authors":"B. Scott, J. Warner","doi":"10.1109/CITRES.2010.5619815","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619815","url":null,"abstract":"The use of dynamic reactive power compensation devices, such as a Static Var Compensator or STATCOM, have been evaluated at power plants. The devices can be used to provide the dynamic reactive power allowing the generator to increase the active power output but maintaining the same power factor interconnection requirements. This paper describes how to evaluate a dynamic reactive power device for a generation application and discusses modeling concerns as well as sizing considerations. Nearly all thermal power plants could potentially benefit from the application of an SVC. However, base load plants or critical units would yield the best return on investment since they are operated continuously at maximum output, thus making use of the additional capacity.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131696324","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}
A. Millner, Nicholas Judson, Bobby Ren, Ellen C. Johnson, W. Ross
{"title":"Enhanced plug-in hybrid electric vehicles","authors":"A. Millner, Nicholas Judson, Bobby Ren, Ellen C. Johnson, W. Ross","doi":"10.1109/CITRES.2010.5619783","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619783","url":null,"abstract":"Plug-in hybrid electric vehicles (PHEVs) have the potential to reduce fossil fuel use, decrease pollution, and allow renewable energy sources for transportation, but their lithium ion battery subsystems are presently too expensive. Three enhancements to PHEVs are proposed here that can improve the economics. First, the incorporation of location information into the car's energy management algorithm allows predictive control to reduce fuel consumption through prior knowledge of the upcoming route and energy required. Second, the use of the vehicle battery while parked, offsetting the short peaks in commercial-scale facility electrical demand to reduce demand charges, can provide additional revenue to pay for the battery. Third, the battery cycle life must be maximized to avoid high replacement costs; a model of battery wear out for lithium ion batteries is presented and is used to confirm that the above strategies are compatible with long battery life.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132132420","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":"Modeling Lithium Ion battery degradation in electric vehicles","authors":"A. Millner","doi":"10.1109/CITRES.2010.5619782","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619782","url":null,"abstract":"A new aging model for Lithium Ion batteries is proposed based on theoretical models of crack propagation. This provides an exponential dependence of aging on stress such as depth of discharge. A measure of stress is derived from arbitrary charge and discharge histories to include mixed use in vehicles or vehicle to grid operations. This aging model is combined with an empirical equivalent circuit model, to provide time and state of charge dependent charge and discharge characteristics at any rate and temperature. This choice of model results in a cycle life prediction with few parameters to be fitted to a particular cell.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114637978","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. Cleary, T. Mcdermott, Jonathan Fitch, D. J. Colombo, J. Ndubah
{"title":"Case studies: Interconnection of wind turbines on distribution circuits","authors":"J. Cleary, T. Mcdermott, Jonathan Fitch, D. J. Colombo, J. Ndubah","doi":"10.1109/CITRES.2010.5619771","DOIUrl":"https://doi.org/10.1109/CITRES.2010.5619771","url":null,"abstract":"Three case studies of proposed wind turbines connected to distribution feeders provide examples of how to efficiently conduct impact studies. In all three cases, the wind turbines are large enough that some engineering analysis was required. To address flicker concerns, power quality monitoring is recommended before and after the wind turbines are connected. Voltage fluctuations can be reduced if the wind turbines absorb some reactive power. Some applications require protective relay functions beyond the minimums identified in IEEE Standard 1547.","PeriodicalId":354280,"journal":{"name":"2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116211171","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}