Pub Date : 2021-04-27DOI: 10.1109/ICPS51807.2021.9416615
Valentina Reyes, David F. Celeita, G. Ramos
This paper presents a performance assessment of Time Domain Reflectometry (TDR) and Frequency Domain Reflectometry (FDR) to locate water trees on single core XLPE cable's insulation. Three different scenarios were evaluated on each technique. The first scenario verifies the correct operation of TDR and FDR. The second scenario evaluates if each technique was able to detect a water tree at different stages on its growth through cable's insulation. Finally, the third scenario evaluates if each technique was able to locate two water trees, at different stages, on the same cable.
{"title":"A simulation study on locating water trees on single core XLPE underground cables using reflectometry diagnosis techniques","authors":"Valentina Reyes, David F. Celeita, G. Ramos","doi":"10.1109/ICPS51807.2021.9416615","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9416615","url":null,"abstract":"This paper presents a performance assessment of Time Domain Reflectometry (TDR) and Frequency Domain Reflectometry (FDR) to locate water trees on single core XLPE cable's insulation. Three different scenarios were evaluated on each technique. The first scenario verifies the correct operation of TDR and FDR. The second scenario evaluates if each technique was able to detect a water tree at different stages on its growth through cable's insulation. Finally, the third scenario evaluates if each technique was able to locate two water trees, at different stages, on the same cable.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123857256","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 : 2021-04-27DOI: 10.1109/ICPS51807.2021.9416595
Jan Westman, R. Hadidi, C. Fox, J. Leonard
Microgrids with high penetration of photovoltaic (PV) resources are becoming more common in the energy infrastructure landscape including islanded microgrids occurring in rural areas where establishing new electric services are prohibitively expensive. In the case of islanded microgrids, the lack of cost effective, long duration storage options requires the integration of conventional fossil fuel based generation with these renewable resources for operation when sufficient irradiance is not available. This creates operational challenges as was the case for a midstream gas compressing, medium voltage, islanded microgrid recently installed and commissioned in the southwestern United States. Energization of 10MVA of PV plant and battery energy storage system (BESS) step up transformers created the risk of nuisance tripping of synchronous generator protection systems. As a result, this paper proposes to operate the BESS inverter in grid forming mode to utilize a soft-starting and synchronization procedure to avoid this scenario. An investigation is carried out to demonstrate modeling of the BESS and test the proposed solution during energization of the transformers and subsequent synchronization to a synchronous generator utilizing RTDS and controller-hardware-in-the loop testing of generating set controller hardware. The results of the investigation illustrate that strategic placement of the BESS and use of grid forming controls enable the energization of the PV plants while eliminating inrush currents and voltage sags characteristic of using synchronous generators. Furthermore, the proposed solution is demonstrated to be robust to the selection of inverter control parameters and transformer saturation characteristics.
{"title":"Energization of Transformers in Medium Voltage Island Microgrids by Leveraging Grid Forming Inverter Control","authors":"Jan Westman, R. Hadidi, C. Fox, J. Leonard","doi":"10.1109/ICPS51807.2021.9416595","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9416595","url":null,"abstract":"Microgrids with high penetration of photovoltaic (PV) resources are becoming more common in the energy infrastructure landscape including islanded microgrids occurring in rural areas where establishing new electric services are prohibitively expensive. In the case of islanded microgrids, the lack of cost effective, long duration storage options requires the integration of conventional fossil fuel based generation with these renewable resources for operation when sufficient irradiance is not available. This creates operational challenges as was the case for a midstream gas compressing, medium voltage, islanded microgrid recently installed and commissioned in the southwestern United States. Energization of 10MVA of PV plant and battery energy storage system (BESS) step up transformers created the risk of nuisance tripping of synchronous generator protection systems. As a result, this paper proposes to operate the BESS inverter in grid forming mode to utilize a soft-starting and synchronization procedure to avoid this scenario. An investigation is carried out to demonstrate modeling of the BESS and test the proposed solution during energization of the transformers and subsequent synchronization to a synchronous generator utilizing RTDS and controller-hardware-in-the loop testing of generating set controller hardware. The results of the investigation illustrate that strategic placement of the BESS and use of grid forming controls enable the energization of the PV plants while eliminating inrush currents and voltage sags characteristic of using synchronous generators. Furthermore, the proposed solution is demonstrated to be robust to the selection of inverter control parameters and transformer saturation characteristics.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134006404","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 : 2021-04-27DOI: 10.1109/ICPS51807.2021.9416599
A. Jobayer, Md Rahan Chowdhury, Long Zhao, Anusha Papasani, Yuhao Zhou, Weijen Lee
Due to environmental concerns, renewable energy sources (RESs) gradually replace conventional power generations. In the last decade, wind and solar electricity generation have increased from 55 million MWh to 275 million MWh and from 2 million MWh to 96 Million MWh, respectively, in the US. Recently, FERC Order 2222 allows distributed energy resources, including distributed renewable generation and energy storage, to participate in the electricity wholesale market through aggregations. Limited rotating inertia of renewable generation resources results in reduced system inertia, which will increase the rate of change of frequency (ROCOF) due to sudden mismatches of generation and demand. During the high visibility national social event, the brightness of LED TV display put simultaneous demand change in power systems. With the development of slim, tightly packaged, and yearly update features of Smart TV, the penetration of different LED displays climbed rapidly from 9% to 60% in the US during 2012–2019. In this paper, the impact of societal events on frequency stability caused by large viewership on LED TV s is discussed. Increasing RESs penetration and FERC order 2222 are considered in this study. The power demand data of a 55-inch LED TV is collected and analyzed to address the problem. This study discusses the frequency stability issue caused by LED TV s in a low inertia power system. It can help system operators to develop frequency control practices accordingly.
{"title":"Impact of Societal Events on Frequency Stability Considering LED TVs in Low Inertia Trending Power Systems","authors":"A. Jobayer, Md Rahan Chowdhury, Long Zhao, Anusha Papasani, Yuhao Zhou, Weijen Lee","doi":"10.1109/ICPS51807.2021.9416599","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9416599","url":null,"abstract":"Due to environmental concerns, renewable energy sources (RESs) gradually replace conventional power generations. In the last decade, wind and solar electricity generation have increased from 55 million MWh to 275 million MWh and from 2 million MWh to 96 Million MWh, respectively, in the US. Recently, FERC Order 2222 allows distributed energy resources, including distributed renewable generation and energy storage, to participate in the electricity wholesale market through aggregations. Limited rotating inertia of renewable generation resources results in reduced system inertia, which will increase the rate of change of frequency (ROCOF) due to sudden mismatches of generation and demand. During the high visibility national social event, the brightness of LED TV display put simultaneous demand change in power systems. With the development of slim, tightly packaged, and yearly update features of Smart TV, the penetration of different LED displays climbed rapidly from 9% to 60% in the US during 2012–2019. In this paper, the impact of societal events on frequency stability caused by large viewership on LED TV s is discussed. Increasing RESs penetration and FERC order 2222 are considered in this study. The power demand data of a 55-inch LED TV is collected and analyzed to address the problem. This study discusses the frequency stability issue caused by LED TV s in a low inertia power system. It can help system operators to develop frequency control practices accordingly.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122185998","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}
The rapid development of data centers (DCs) leads to a huge challenge in their energy consumption and environmental impact. It is promising to establish data center microgrid (DCMG) with renewable energy generation and waste heat recovery system to address these issues. However, the efficient energy management of DCMG is to be pursued. In this paper, we propose a multi-criteria optimal operation framework for the DCMG, considering coordinated scheduling of energy supply and demand. In this framework, multiple criteria are comprehensively considered via a multi-criteria optimization (MCO) approach. Then, we adopt the augmented e-constraint algorithm to address the corresponding MCO problem. Afterwards, a balanced decision making method is further proposed to determine the optimal scheduling solution. Finally, case study and results analysis verify the effectiveness of proposed multi-criteria optimal operation fr-amework for the DCMG.
{"title":"A Multi-Criteria Optimal Operation Framework for Renewable Energy Integrated Data Center Microgrid with Waste Heat Recovery","authors":"Yuanzheng Li, Jingjing Huang, Yun Liu, Hao Wang, Yongzhen Wang, X. Ai","doi":"10.1109/ICPS51807.2021.9416605","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9416605","url":null,"abstract":"The rapid development of data centers (DCs) leads to a huge challenge in their energy consumption and environmental impact. It is promising to establish data center microgrid (DCMG) with renewable energy generation and waste heat recovery system to address these issues. However, the efficient energy management of DCMG is to be pursued. In this paper, we propose a multi-criteria optimal operation framework for the DCMG, considering coordinated scheduling of energy supply and demand. In this framework, multiple criteria are comprehensively considered via a multi-criteria optimization (MCO) approach. Then, we adopt the augmented e-constraint algorithm to address the corresponding MCO problem. Afterwards, a balanced decision making method is further proposed to determine the optimal scheduling solution. Finally, case study and results analysis verify the effectiveness of proposed multi-criteria optimal operation fr-amework for the DCMG.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123265422","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}
Power system wide-area measurement and control signals based on phasor measurement unit (PMU) may exist in complex communication scenarios. This makes the problems of time delay, packet loss, noise and control signal distortion caused by chaotic time series. This paper presents a novel prediction compensation structure, which combines the signal hierarchical filtering method with gray prediction algorithm. First, utilize complete ensemble empirical decomposition with adaptive noise (CEEMDAN) method to decompose the PMU measurement signal into components with different frequency scales and use WOLF method to determine the chaotic characteristics of each frequency band component. Second, based on the analysis results of singular spectrum analysis (SSA), after removing the weak correlation information and noise corresponding to small singular values, reconstruct the known chaotic components. Third, add the components of each frequency scale predicted by gray Verhulst prediction method to get the final control input signal without time delay interference. Finally, the paper takes 5 communication scenarios to analyze that the proposed compensation scheme has a good compensation effect under different delays and packet loss.
在复杂的通信场景中，可能存在基于相量测量单元(PMU)的电力系统广域测控信号。这就产生了混沌时间序列引起的时间延迟、丢包、噪声和控制信号失真等问题。提出了一种将信号层次滤波方法与灰色预测算法相结合的新型预测补偿结构。首先，利用CEEMDAN (complete ensemble empirical decomposition with adaptive noise)方法将PMU测量信号分解成不同频率尺度的分量，并利用WOLF方法确定各频段分量的混沌特性。其次，基于奇异谱分析(SSA)的分析结果，去除小奇异值对应的弱相关信息和噪声后，重构已知的混沌分量。第三，将灰色Verhulst预测法预测的各频率尺度分量相加，得到无时延干扰的最终控制输入信号。最后，本文以5种通信场景分析了所提出的补偿方案在不同时延和丢包情况下具有良好的补偿效果。
{"title":"Time-Delay Correlation Analysis of Wide-Area PMU Control Signals in Complex Communication Scenarios","authors":"Jianbo Yi, Zhendong Liu, Zhenyuan Zhang, Jian Li, Qi Huang","doi":"10.1109/ICPS51807.2021.9416638","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9416638","url":null,"abstract":"Power system wide-area measurement and control signals based on phasor measurement unit (PMU) may exist in complex communication scenarios. This makes the problems of time delay, packet loss, noise and control signal distortion caused by chaotic time series. This paper presents a novel prediction compensation structure, which combines the signal hierarchical filtering method with gray prediction algorithm. First, utilize complete ensemble empirical decomposition with adaptive noise (CEEMDAN) method to decompose the PMU measurement signal into components with different frequency scales and use WOLF method to determine the chaotic characteristics of each frequency band component. Second, based on the analysis results of singular spectrum analysis (SSA), after removing the weak correlation information and noise corresponding to small singular values, reconstruct the known chaotic components. Third, add the components of each frequency scale predicted by gray Verhulst prediction method to get the final control input signal without time delay interference. Finally, the paper takes 5 communication scenarios to analyze that the proposed compensation scheme has a good compensation effect under different delays and packet loss.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122277366","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 : 2021-04-27DOI: 10.1109/ICPS51807.2021.9428880
C. Pothisarn, A. Ngaopitakkul
High transient inrush currents from back-to-back capacitor switching can cause the maloperation of protective relays, especially the instantaneous overcurrent (50) and unbalanced current protection relays (60C). This paper presents a combination of discrete wavelet transforms and artificial intelligence as an efficient technique to analyze the inrush current switching. The discrete wavelet transform is used to detect and classify either isolated or back-to-back capacitor switching transient signals. After that, the output from wavelet coefficients acts as the artificial intelligence input for discriminating the 6-difference cases of transient inrush current mitigation methods by using the combination of discrete wavelet transform and fuzzy inference system and discrete wavelet transform and probabilistic neural network. The proposed technique of discrete wavelet transform for detection and classification shows enhanced performance accuracy of 100 %. The fuzzy inference system and probabilistic neural network that can discriminate the inrush current mitigation methods have a high accuracy of 90.57 % and 96.72 %, respectively.
{"title":"Wavelet Transform and Artificial Intelligence for Unbalanced Current Protection of 230kV Capacitor Switching Transient Inrush Current","authors":"C. Pothisarn, A. Ngaopitakkul","doi":"10.1109/ICPS51807.2021.9428880","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9428880","url":null,"abstract":"High transient inrush currents from back-to-back capacitor switching can cause the maloperation of protective relays, especially the instantaneous overcurrent (50) and unbalanced current protection relays (60C). This paper presents a combination of discrete wavelet transforms and artificial intelligence as an efficient technique to analyze the inrush current switching. The discrete wavelet transform is used to detect and classify either isolated or back-to-back capacitor switching transient signals. After that, the output from wavelet coefficients acts as the artificial intelligence input for discriminating the 6-difference cases of transient inrush current mitigation methods by using the combination of discrete wavelet transform and fuzzy inference system and discrete wavelet transform and probabilistic neural network. The proposed technique of discrete wavelet transform for detection and classification shows enhanced performance accuracy of 100 %. The fuzzy inference system and probabilistic neural network that can discriminate the inrush current mitigation methods have a high accuracy of 90.57 % and 96.72 %, respectively.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126279774","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 : 2021-04-27DOI: 10.1109/ICPS51807.2021.9416591
C. Jettanasen, S. Bunjongjit, A. Ngaopitakkul
This study focuses on the comparison of conducted electromagnetic interference (EMI) mitigation for a nanogrid road lighting system, using a passive EMI filter between ungrounded and grounded systems. An inverter was used as the equipment under test in the experiment. The inverter is a power conversion device that receives power from the source and supplies power to the AC electrical load of an LED luminaire. There are two points where the self-generated noises propagate to other nearby devices/equipment. For this reason, this study shows the EMI spectrum from both the DC input and AC output of the inverter. The results of both sides were additionally compared between the two case studies: ungrounded and grounded systems. The real EMI testing results were also compared with the EMI/electromagnetic compatibility standard. The results confirm the effectiveness and benefits of system grounding, integrated with the proposed passive EMI filter.
{"title":"Impact of Electromagnetic Interference Filter Performance in a System without and with Grounding for Supporting the Nanogrid Road Lighting System","authors":"C. Jettanasen, S. Bunjongjit, A. Ngaopitakkul","doi":"10.1109/ICPS51807.2021.9416591","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9416591","url":null,"abstract":"This study focuses on the comparison of conducted electromagnetic interference (EMI) mitigation for a nanogrid road lighting system, using a passive EMI filter between ungrounded and grounded systems. An inverter was used as the equipment under test in the experiment. The inverter is a power conversion device that receives power from the source and supplies power to the AC electrical load of an LED luminaire. There are two points where the self-generated noises propagate to other nearby devices/equipment. For this reason, this study shows the EMI spectrum from both the DC input and AC output of the inverter. The results of both sides were additionally compared between the two case studies: ungrounded and grounded systems. The real EMI testing results were also compared with the EMI/electromagnetic compatibility standard. The results confirm the effectiveness and benefits of system grounding, integrated with the proposed passive EMI filter.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129224871","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 : 2021-04-27DOI: 10.1109/ICPS51807.2021.9416616
Xuan Wu, Kiril Andov, Benjamin B. Leece, Michael L. Skidmore, Matthew R. Louderback, D. J. Meisner, Thomas E. Momme, Kenneth R. Posey
Shunt capacitor banks are important for the voltage stability of transmission and distribution networks. In addition, they increase the efficiency of real power transfer. These benefits are amplified in an extra-high-voltage (EHV) system built from longer transmission lines, with expectations for higher reliability. Therefore, a reliable and practical design of EHV shunt capacitor banks is significantly needed. American Electric Power Company (AEP) developed a high-margin, EHV shunt capacitor bank design and protection scheme to reduce the number of failures and ensure proper protection of equipment. In addition, shunt capacitor bank switching may cause transients that can result in damage and misoperations of the capacitor and nearby equipment. This paper describes the design of the EHV (i.e., 345 kV) shunt capacitor bank equipment, protection scheme and transient response and mitigation - with the goal of improving the capacitor's availability and the system's reliability. The findings from this case study may be useful for other similar projects in the industry.
{"title":"EHV Shunt Capacitor Bank Design and Transient Analysis - A Case Study","authors":"Xuan Wu, Kiril Andov, Benjamin B. Leece, Michael L. Skidmore, Matthew R. Louderback, D. J. Meisner, Thomas E. Momme, Kenneth R. Posey","doi":"10.1109/ICPS51807.2021.9416616","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9416616","url":null,"abstract":"Shunt capacitor banks are important for the voltage stability of transmission and distribution networks. In addition, they increase the efficiency of real power transfer. These benefits are amplified in an extra-high-voltage (EHV) system built from longer transmission lines, with expectations for higher reliability. Therefore, a reliable and practical design of EHV shunt capacitor banks is significantly needed. American Electric Power Company (AEP) developed a high-margin, EHV shunt capacitor bank design and protection scheme to reduce the number of failures and ensure proper protection of equipment. In addition, shunt capacitor bank switching may cause transients that can result in damage and misoperations of the capacitor and nearby equipment. This paper describes the design of the EHV (i.e., 345 kV) shunt capacitor bank equipment, protection scheme and transient response and mitigation - with the goal of improving the capacitor's availability and the system's reliability. The findings from this case study may be useful for other similar projects in the industry.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130468031","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 : 2021-04-27DOI: 10.1109/ICPS51807.2021.9416601
Chenyang Wang, Xiaodong Liang, Emerson Adajar
To protect safety of electrical workers, this paper presents an effective design concept of portable equipotential zone mats. The proposed mats can create a safe work area by enabling bonding with energized equipment, and thus, providing an equipotential zone for electrical workers who may be exposed to electrical potential differences. The proposed mats also offer the portability, and it is convenient to transport the mats to remote areas and set-up at worksites. Two sizes of mats are designed, built and tested in this paper. To evaluate their performance, the two mats have passed type tests according to the latest revision of ASTM standard F2715. The testing procedure and results for the two mats are demonstrated in the paper.
{"title":"Effective Design and Testing of Portable Equipotential Zone Mats","authors":"Chenyang Wang, Xiaodong Liang, Emerson Adajar","doi":"10.1109/ICPS51807.2021.9416601","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9416601","url":null,"abstract":"To protect safety of electrical workers, this paper presents an effective design concept of portable equipotential zone mats. The proposed mats can create a safe work area by enabling bonding with energized equipment, and thus, providing an equipotential zone for electrical workers who may be exposed to electrical potential differences. The proposed mats also offer the portability, and it is convenient to transport the mats to remote areas and set-up at worksites. Two sizes of mats are designed, built and tested in this paper. To evaluate their performance, the two mats have passed type tests according to the latest revision of ASTM standard F2715. The testing procedure and results for the two mats are demonstrated in the paper.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131401046","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 : 2021-04-27DOI: 10.1109/ICPS51807.2021.9416628
Zhe Li, Fang Qiu, Hao Yang, Yang Zhang, Hongcai Chen, Ya-ping Du
Different types of grounding systems are adopted in residential buildings due to various considerations such as location, regulation, etc. In order to reduce the potential electrical hazards, the appropriate grounding system should be selected according to the specific situation. The purpose of this study is to identify the suitable grounding system for urban villages or areas with similar situations. The discussions are based on a typical case that frequently happened in the urban village. According to our investigation, adopting TN-C-S system in urban villages is with a high risk of electric shock hazards due to the disadvantage of the system itself and the situation in the urban village. The reported case and analysis in this paper can provide a reference for selecting an appropriate grounding system.
{"title":"Electric Shock in Urban Village: Reflections from A Practical Accident","authors":"Zhe Li, Fang Qiu, Hao Yang, Yang Zhang, Hongcai Chen, Ya-ping Du","doi":"10.1109/ICPS51807.2021.9416628","DOIUrl":"https://doi.org/10.1109/ICPS51807.2021.9416628","url":null,"abstract":"Different types of grounding systems are adopted in residential buildings due to various considerations such as location, regulation, etc. In order to reduce the potential electrical hazards, the appropriate grounding system should be selected according to the specific situation. The purpose of this study is to identify the suitable grounding system for urban villages or areas with similar situations. The discussions are based on a typical case that frequently happened in the urban village. According to our investigation, adopting TN-C-S system in urban villages is with a high risk of electric shock hazards due to the disadvantage of the system itself and the situation in the urban village. The reported case and analysis in this paper can provide a reference for selecting an appropriate grounding system.","PeriodicalId":350508,"journal":{"name":"2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131714414","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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