Pub Date : 2018-04-01DOI: 10.1109/TDC.2018.8440256
Nachum Sadan, B. Renz
Islanding of Distributed Energy Resources (DER) is a growing concern as penetration increases. In a companion paper entitled “A New Approach to Anti-islanding: Design, Installation and In-Service Experience”, the authors describe a protective concept, DG Permissive (DGP), that reliably detects and removes an island within the 2 second window prescribed by the IEEE-1547 interconnection standard, regardless of penetration level. This paper provides examples of such a DGP system deployed in a wide range of DER applications.
{"title":"A New Approach to Anti-Islanding: Deployment Examples","authors":"Nachum Sadan, B. Renz","doi":"10.1109/TDC.2018.8440256","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440256","url":null,"abstract":"Islanding of Distributed Energy Resources (DER) is a growing concern as penetration increases. In a companion paper entitled “A New Approach to Anti-islanding: Design, Installation and In-Service Experience”, the authors describe a protective concept, DG Permissive (DGP), that reliably detects and removes an island within the 2 second window prescribed by the IEEE-1547 interconnection standard, regardless of penetration level. This paper provides examples of such a DGP system deployed in a wide range of DER applications.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"162 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89050363","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}
Pub Date : 2018-04-01DOI: 10.1109/TDC.2018.8440228
Alexandr Stinskiy, Michael Dougherty
This paper will discuss the implementation of a highspeed source transfer and voltage regulation system deployed by the Cuyahoga Falls Electric Department to increase the reliability of the 25 kV distribution grid. The feeder topology includes two line sections feeding a critical load, which are supplied by the “Thiess” and “Sub #3” substations. A main-tie-main pole top solution, along with line end voltage regulation, was implemented to minimize the potential impact on the load caused by any fault at the substation or on the feeder. The production process at the critical load facilities required the system to perform any source transfer operation within 6–7 cycles. Therefore, in the event of a fault on the line section with the critical load, the protection system was required to immediately isolate the line section to minimize the impact on the entire distribution system. Due to this requirement, the system employed fast acting differential protection instead of conventional time coordinated curves. Further analysis indicated that the transfer event might cause a significant voltage drop at the line end when both line sections are fed from a single source. The solution for this was to adjust the substation voltage regulators based on the line end voltage. This functionality required a real time interaction between the reclosers in the field and voltage regulators in the substation. This was achieved using decentralized logic architecture and IEC61850 peer-to-peer communication protocol with GOOSE messaging between all devices. The paper will discuss the following: ◾ Source transfer sequences; ◾ Fault isolation concept using jDiffTM differential protection; ◾ Voltage regulation logic; ◾ System design testing and commissioning steps; ◾ Communication and SCADA integration; Field test results.
{"title":"High Speed Main-Tie-Main Pole Top Source Transfer Application with Precise Voltage Regulation","authors":"Alexandr Stinskiy, Michael Dougherty","doi":"10.1109/TDC.2018.8440228","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440228","url":null,"abstract":"This paper will discuss the implementation of a highspeed source transfer and voltage regulation system deployed by the Cuyahoga Falls Electric Department to increase the reliability of the 25 kV distribution grid. The feeder topology includes two line sections feeding a critical load, which are supplied by the “Thiess” and “Sub #3” substations. A main-tie-main pole top solution, along with line end voltage regulation, was implemented to minimize the potential impact on the load caused by any fault at the substation or on the feeder. The production process at the critical load facilities required the system to perform any source transfer operation within 6–7 cycles. Therefore, in the event of a fault on the line section with the critical load, the protection system was required to immediately isolate the line section to minimize the impact on the entire distribution system. Due to this requirement, the system employed fast acting differential protection instead of conventional time coordinated curves. Further analysis indicated that the transfer event might cause a significant voltage drop at the line end when both line sections are fed from a single source. The solution for this was to adjust the substation voltage regulators based on the line end voltage. This functionality required a real time interaction between the reclosers in the field and voltage regulators in the substation. This was achieved using decentralized logic architecture and IEC61850 peer-to-peer communication protocol with GOOSE messaging between all devices. The paper will discuss the following: ◾ Source transfer sequences; ◾ Fault isolation concept using jDiffTM differential protection; ◾ Voltage regulation logic; ◾ System design testing and commissioning steps; ◾ Communication and SCADA integration; Field test results.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"49 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84856418","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}
Pub Date : 2018-04-01DOI: 10.1109/TDC.2018.8440454
Sanjay Kumar, B. Tyagi, Vishal Kumar, S. Chohan
This paper presents a novel technique to improve the reliability of observability for the power system by placing Phasor Measurement Units (PMU) in multi-phasing manner. Initially, a method is discussed which utilizes the availability/reliability of power system components for selecting the optimal locations for PMU placement. The PMU placement problem gives multiple solutions with same number of PMUs for complete observability. Against every solution a bus index called reliability index is evaluated for each bus. Next, overall system index (OSI) is obtained by averaging the reliability index for each optimal solution. The optimal solution having maximum OSI has been selected for PMU placement. This index determines the overall insight of observability for wide area monitoring system. Finally, an index called as Reliability Observability Criteria (ROC) is proposed and evaluated for each PMU installed bus using reliability index. ROC shows the contribution of PMU installed bus in enhancing the observability of the network. The proposed technique has been demonstrated on Eastern Region Indian Power Grid (ERIPG 90 bus system).
{"title":"Multi-Phase PMU Placement Considering Reliability of Power System Network","authors":"Sanjay Kumar, B. Tyagi, Vishal Kumar, S. Chohan","doi":"10.1109/TDC.2018.8440454","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440454","url":null,"abstract":"This paper presents a novel technique to improve the reliability of observability for the power system by placing Phasor Measurement Units (PMU) in multi-phasing manner. Initially, a method is discussed which utilizes the availability/reliability of power system components for selecting the optimal locations for PMU placement. The PMU placement problem gives multiple solutions with same number of PMUs for complete observability. Against every solution a bus index called reliability index is evaluated for each bus. Next, overall system index (OSI) is obtained by averaging the reliability index for each optimal solution. The optimal solution having maximum OSI has been selected for PMU placement. This index determines the overall insight of observability for wide area monitoring system. Finally, an index called as Reliability Observability Criteria (ROC) is proposed and evaluated for each PMU installed bus using reliability index. ROC shows the contribution of PMU installed bus in enhancing the observability of the network. The proposed technique has been demonstrated on Eastern Region Indian Power Grid (ERIPG 90 bus system).","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"63 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86141603","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}
Pub Date : 2018-04-01DOI: 10.1109/TDC.2018.8440336
Kurt M. Traub, L. T. Mai, Jay M. Shah
The traditional way of issuing a transmission and distribution construction package is multiple copies of bulky binders and large plan and profile drawings in fiberboard tubes. Some of this information is also required to be transmitted to various agencies such as environmental, land acquisition and Construction personnel. Typical data include location identifier, pole height and class, foundation details, framing and wire stringing information. Ampirical has upgraded the transmittal of this design data to a more accurate and more efficient interface which utilizes currently available technologies. All design location information can be visualized in a geographical computer software platform such as Google Earth. The most up to date construction statuses are represented with icons and colors. Construction issues can be promptly identified by reviewing the status map and site photos that are attached to each structure location. All critical information could be quickly retrieved with or without an internet connection on a tablet at the office, construction site, and maintenance and/or storm damage locations.
{"title":"Instant Power Asset Information and Construction Status Tracking System Using a Geographical Platform","authors":"Kurt M. Traub, L. T. Mai, Jay M. Shah","doi":"10.1109/TDC.2018.8440336","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440336","url":null,"abstract":"The traditional way of issuing a transmission and distribution construction package is multiple copies of bulky binders and large plan and profile drawings in fiberboard tubes. Some of this information is also required to be transmitted to various agencies such as environmental, land acquisition and Construction personnel. Typical data include location identifier, pole height and class, foundation details, framing and wire stringing information. Ampirical has upgraded the transmittal of this design data to a more accurate and more efficient interface which utilizes currently available technologies. All design location information can be visualized in a geographical computer software platform such as Google Earth. The most up to date construction statuses are represented with icons and colors. Construction issues can be promptly identified by reviewing the status map and site photos that are attached to each structure location. All critical information could be quickly retrieved with or without an internet connection on a tablet at the office, construction site, and maintenance and/or storm damage locations.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"26 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81284890","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}
Pub Date : 2018-04-01DOI: 10.1109/TDC.2018.8440516
R. Bravo
This paper presents laboratory investigation of packaged commercial heat pump systems (CHP) inrush current performance. These systems are typically installed in the rooftop of office, commercial, and industrial buildings. First, this paper will present the test setup that includes the test equipment used for the tests and the equipment under test (EUT). Additionally, it will provide the start-up test results to assess their inrush characteristics for each of the unit's compressors. Furthermore, it will provide the performance of these units when they reached steady state that is about 1 minute after start-up. Finally, it will offer recommendations on how these devices can be enhanced to be grid friendly and support the grid during emergencies. The test results and information presented in this paper can be used to develop, test, and validate computer models use for distribution or bulk system studies.
{"title":"Inrush Current Behavior of Packaged Commercial Heat Pumps","authors":"R. Bravo","doi":"10.1109/TDC.2018.8440516","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440516","url":null,"abstract":"This paper presents laboratory investigation of packaged commercial heat pump systems (CHP) inrush current performance. These systems are typically installed in the rooftop of office, commercial, and industrial buildings. First, this paper will present the test setup that includes the test equipment used for the tests and the equipment under test (EUT). Additionally, it will provide the start-up test results to assess their inrush characteristics for each of the unit's compressors. Furthermore, it will provide the performance of these units when they reached steady state that is about 1 minute after start-up. Finally, it will offer recommendations on how these devices can be enhanced to be grid friendly and support the grid during emergencies. The test results and information presented in this paper can be used to develop, test, and validate computer models use for distribution or bulk system studies.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"9 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84257628","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}
Pub Date : 2018-04-01DOI: 10.1109/TDC.2018.8440572
F. Tuffner, Yingying Tang, P. Mana
Protection in distribution systems is vital for maintaining reliability and ensuring proper power quality is provided to the end-use customer. As more switching devices are deployed on distribution systems, traditional protection schemes are giving way to more advanced, and sometimes centrally coordinated, protection schemes that rely on communications infrastructure. With these communications-dependent systems, the behaviors of the protection with and without the communications infrastructure must be examined. This work has evaluated the impacts of loss of communication in centrally coordinated protection schemes. Two test cases were examined: a sequence of similar faults on a feeder before and after a topology reconfiguration, and a feeder with a photovoltaic (PV) fault current contribution. Both simulations are run in the GridLAB-D™ simulation environment. A simple connectivity model is used to represent communication status. The results reveal that a failure of the communication system can cause significantly different protection behavior. This analysis can be used as a basis for utility engineers to make an informed decision on the impacts of communication losses on their system, as well as evaluating ways to mitigate its impact on the resiliency of the system.
{"title":"Evaluating the Loss of Communications in Distribution Protection Systems Using GridLAB-D","authors":"F. Tuffner, Yingying Tang, P. Mana","doi":"10.1109/TDC.2018.8440572","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440572","url":null,"abstract":"Protection in distribution systems is vital for maintaining reliability and ensuring proper power quality is provided to the end-use customer. As more switching devices are deployed on distribution systems, traditional protection schemes are giving way to more advanced, and sometimes centrally coordinated, protection schemes that rely on communications infrastructure. With these communications-dependent systems, the behaviors of the protection with and without the communications infrastructure must be examined. This work has evaluated the impacts of loss of communication in centrally coordinated protection schemes. Two test cases were examined: a sequence of similar faults on a feeder before and after a topology reconfiguration, and a feeder with a photovoltaic (PV) fault current contribution. Both simulations are run in the GridLAB-D™ simulation environment. A simple connectivity model is used to represent communication status. The results reveal that a failure of the communication system can cause significantly different protection behavior. This analysis can be used as a basis for utility engineers to make an informed decision on the impacts of communication losses on their system, as well as evaluating ways to mitigate its impact on the resiliency of the system.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"74 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90928240","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}
Pub Date : 2018-04-01DOI: 10.1109/TDC.2018.8440249
C. Rutledge
This paper provides information concerning the monitoring and diagnosis of hot metal gases, with special attention given to the detection of hydrogen. Though hydrogen is a superior indicator of incipient faults due to its generation through all temperature zones over 150°C, the detection and analysis of hydrogen levels can be quite erratic. The theories set forth in this paper, offer an examination of hydrogen's physical reactions within the main tank of a transformer which can lead to this erratic and often misleading behavior.
{"title":"Monitoring Gas Generation in Transformers","authors":"C. Rutledge","doi":"10.1109/TDC.2018.8440249","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440249","url":null,"abstract":"This paper provides information concerning the monitoring and diagnosis of hot metal gases, with special attention given to the detection of hydrogen. Though hydrogen is a superior indicator of incipient faults due to its generation through all temperature zones over 150°C, the detection and analysis of hydrogen levels can be quite erratic. The theories set forth in this paper, offer an examination of hydrogen's physical reactions within the main tank of a transformer which can lead to this erratic and often misleading behavior.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"3 3 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79520753","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}
Pub Date : 2018-04-01DOI: 10.1109/tdc.2018.8440414
M. Lashbrook, Russell Martin, J. Malde
Ester-based dielectric liquids have now been on the market for several decades, providing fire safe and environmentally friendly alternatives to mineral oil which has traditionally been used in transformers and other electrical equipment. Historically, the use of esters was primarily driven by the need for improved fire safety, with the added benefit of lower environmental impact if spills or leaks occurred. The use of a liquid with a high fire point also allowed more compact, lighter designs which can provide higher power output for a given weight. This principle has been used for many years in applications such as rolling stock and wind turbines, where synthetic esters now dominate. At higher voltages, above 100kV, the use of ester-based insulating liquids has increased substantially in the last 20 years. It is now the case that large power transformers used for transmission and generation projects at 400kV plus can be successfully designed, built and filled with esters. This opens the door to innovation in mobile transformers at ever higher voltage levels, where the ability to gain greater power from a smaller footprint is vital. Coupled with high temperature solid insulation, ester liquids offer an excellent solution for large transformers which can be built within road haulage weight limits.
{"title":"Ester-Based Dielectric Liquids for Grid Resilience and EHV Mobile Transformers","authors":"M. Lashbrook, Russell Martin, J. Malde","doi":"10.1109/tdc.2018.8440414","DOIUrl":"https://doi.org/10.1109/tdc.2018.8440414","url":null,"abstract":"Ester-based dielectric liquids have now been on the market for several decades, providing fire safe and environmentally friendly alternatives to mineral oil which has traditionally been used in transformers and other electrical equipment. Historically, the use of esters was primarily driven by the need for improved fire safety, with the added benefit of lower environmental impact if spills or leaks occurred. The use of a liquid with a high fire point also allowed more compact, lighter designs which can provide higher power output for a given weight. This principle has been used for many years in applications such as rolling stock and wind turbines, where synthetic esters now dominate. At higher voltages, above 100kV, the use of ester-based insulating liquids has increased substantially in the last 20 years. It is now the case that large power transformers used for transmission and generation projects at 400kV plus can be successfully designed, built and filled with esters. This opens the door to innovation in mobile transformers at ever higher voltage levels, where the ability to gain greater power from a smaller footprint is vital. Coupled with high temperature solid insulation, ester liquids offer an excellent solution for large transformers which can be built within road haulage weight limits.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"21 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85009427","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}
Pub Date : 2018-04-01DOI: 10.1109/TPWRD.2016.2524664
A. Ficheux, B. Portal
The compactness of Gas-Insulated Substations (GIS) allows their installation in building even at extra-high voltage levels, like 800 k V. This is one of the key options to consider when physical security is of primary concern. Substation can be totally blended within the landscape and gives little room to ill intentions. These integrations coupled with the development of digital technologies also reduce significantly the requirement for access to the equipment which improves the security aspects of the assets. This paper is giving various examples illustrating these aspects.
气体绝缘变电站(GIS)的紧凑性允许它们安装在建筑物中，即使在超高压水平，如800 k v。这是当物理安全是主要关注时要考虑的关键选项之一。变电站可以完全融合在景观中，给不良意图留下很少的空间。这些集成与数字技术的发展相结合，也大大减少了访问设备的需求，从而提高了资产的安全性。本文给出了不同的例子来说明这些方面。
{"title":"Benefits of GIS Solution to Improve Physical Security in High Voltage Substations","authors":"A. Ficheux, B. Portal","doi":"10.1109/TPWRD.2016.2524664","DOIUrl":"https://doi.org/10.1109/TPWRD.2016.2524664","url":null,"abstract":"The compactness of Gas-Insulated Substations (GIS) allows their installation in building even at extra-high voltage levels, like 800 k V. This is one of the key options to consider when physical security is of primary concern. Substation can be totally blended within the landscape and gives little room to ill intentions. These integrations coupled with the development of digital technologies also reduce significantly the requirement for access to the equipment which improves the security aspects of the assets. This paper is giving various examples illustrating these aspects.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"7 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88532971","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}
Pub Date : 2018-04-01DOI: 10.1109/TDC.2018.8440455
A. Maharaj, S. Bahadoorsingh, C. Sharma, C. Powell, G. E. Mahadeo
Dynamic wireless power transfer (DWPT) for electric vehicle (EV) charging is an emerging technology driven by the need to reduce current battery capacity limitations. DWPT has the potential to increase driving range as well as reduce charging time while managing battery related factors including weight, form factor and prohibitive costs. A novel integrated DWPT model for EV charging in Matlab/Simulink was developed to investigate three inductive power transfer (IPT) charging coil configurations: long loop, sectional loop and spaced loop at low, medium and high EV densities (number of EVs per km) in the Caribbean twin island Republic of Trinidad and Tobago. The Highway Fuel Economy Test (HWFET) driving cycle was applied. Simulations of regenerative braking and DWPT using three charging configurations at three levels of EV densities without regenerative braking were compared. The results revealed that the sectional loop and long loop charging configurations offered the greatest benefits; the sectional loop allowed for a 280.1% and 13.1% increase in driving range and a 68.75% and 9.5% reduction in battery capacity for the low and medium EV density cases respectively while the long loop configuration allowed for a 43.2% increase in driving range and 27.5% reduction in battery capacity for the high EV density case.
{"title":"A Simulation Study of Dynamic Wireless Power Transfer for EV Charging Versus Regenerative Braking in a Caribbean Island","authors":"A. Maharaj, S. Bahadoorsingh, C. Sharma, C. Powell, G. E. Mahadeo","doi":"10.1109/TDC.2018.8440455","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440455","url":null,"abstract":"Dynamic wireless power transfer (DWPT) for electric vehicle (EV) charging is an emerging technology driven by the need to reduce current battery capacity limitations. DWPT has the potential to increase driving range as well as reduce charging time while managing battery related factors including weight, form factor and prohibitive costs. A novel integrated DWPT model for EV charging in Matlab/Simulink was developed to investigate three inductive power transfer (IPT) charging coil configurations: long loop, sectional loop and spaced loop at low, medium and high EV densities (number of EVs per km) in the Caribbean twin island Republic of Trinidad and Tobago. The Highway Fuel Economy Test (HWFET) driving cycle was applied. Simulations of regenerative braking and DWPT using three charging configurations at three levels of EV densities without regenerative braking were compared. The results revealed that the sectional loop and long loop charging configurations offered the greatest benefits; the sectional loop allowed for a 280.1% and 13.1% increase in driving range and a 68.75% and 9.5% reduction in battery capacity for the low and medium EV density cases respectively while the long loop configuration allowed for a 43.2% increase in driving range and 27.5% reduction in battery capacity for the high EV density case.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"935 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85546898","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}
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