Pub Date : 2021-06-12DOI: 10.1109/ICECCE52056.2021.9514145
Jun O. Seo, S. Manoharan, U. Speidel
Network timing characteristics can be used to hide information, and this is known as a covert timing channel (CTC). This paper discusses a number of inherent network effects that may prevent the use of CTC. The paper experimentally demonstrates the feasibility of an Interpacket Delay (IPD)-based CTC over long paths. To our knowledge, long-distance CTC between various locations across the world have not yet been experimentally studied in the literature. For this paper, CTC channels were created between New Zealand and nine AWS instances around the globe. The channels communicated at an hourly interval over a week's duration. Three encoding methods, 1 bit per packet (BPP), 2 BPP, and 3 BPP were designed and studied. The experiment results suggest that one can expect there to be around a 10% error rate, and stress the need for error correcting codes in the CTCs.
{"title":"Feasibility Evaluation of Long-distance Network Timing-based Covert Channels","authors":"Jun O. Seo, S. Manoharan, U. Speidel","doi":"10.1109/ICECCE52056.2021.9514145","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514145","url":null,"abstract":"Network timing characteristics can be used to hide information, and this is known as a covert timing channel (CTC). This paper discusses a number of inherent network effects that may prevent the use of CTC. The paper experimentally demonstrates the feasibility of an Interpacket Delay (IPD)-based CTC over long paths. To our knowledge, long-distance CTC between various locations across the world have not yet been experimentally studied in the literature. For this paper, CTC channels were created between New Zealand and nine AWS instances around the globe. The channels communicated at an hourly interval over a week's duration. Three encoding methods, 1 bit per packet (BPP), 2 BPP, and 3 BPP were designed and studied. The experiment results suggest that one can expect there to be around a 10% error rate, and stress the need for error correcting codes in the CTCs.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128531931","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 : 2021-06-12DOI: 10.1109/ICECCE52056.2021.9514258
Turki basher Alshammari, Ayedh S. Alanazi
The present research will emphasize the security threats that have predominately affected the effective operation of the Internet of things (IoT) at homes. Some of the security threats arise due to a lack of proper knowledge of homeowners on IoT operations or due to vulnerabilities created by the manufacturers. Some of the risks also occur due to the attackers' malpractices to obtain confidential information for their selfish interests. In another instance, most researchers argue that developing a completely secure IoT device is quite difficult since the attackers create new ways of attacking the IoT to cripple their functions. It is important to note that IoT is designed to develop an interconnection of the devices that smoothen operations at home. Besides, they also help perform particular tasks or create learning for a specific process, thus making homeowners efficiently carry out various activities and offer a secure home environment. The use of IoT devices at homes is gaining momentum since they provide adequate security. Thus, the entire research will provide a critical analysis of the threat and how the attackers perpetrate them.
{"title":"Security Threats Against the Internet of Things at Home","authors":"Turki basher Alshammari, Ayedh S. Alanazi","doi":"10.1109/ICECCE52056.2021.9514258","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514258","url":null,"abstract":"The present research will emphasize the security threats that have predominately affected the effective operation of the Internet of things (IoT) at homes. Some of the security threats arise due to a lack of proper knowledge of homeowners on IoT operations or due to vulnerabilities created by the manufacturers. Some of the risks also occur due to the attackers' malpractices to obtain confidential information for their selfish interests. In another instance, most researchers argue that developing a completely secure IoT device is quite difficult since the attackers create new ways of attacking the IoT to cripple their functions. It is important to note that IoT is designed to develop an interconnection of the devices that smoothen operations at home. Besides, they also help perform particular tasks or create learning for a specific process, thus making homeowners efficiently carry out various activities and offer a secure home environment. The use of IoT devices at homes is gaining momentum since they provide adequate security. Thus, the entire research will provide a critical analysis of the threat and how the attackers perpetrate them.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128609483","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 : 2021-06-12DOI: 10.1109/ICECCE52056.2021.9514184
Shinichi Sugahara, Mikio Mori
Recently, the demand for eyeglasses as a local industry has declined. Therefore, there is a need to improve the design and functionalities of eyeglasses manufactured in Japan. This study investigated user authentication using air- and bone-conduction microphones built in the frame of eyeglasses. Therefore, we propose a new user authentication system that uses air- and bone-conducted speech signals for speaker identification using the spectral ratio of air- to bone-conducted speech as a feature quantity. Using machine learning methods, the data were analyzed for a speaker identification system with the logarithmic power spectrum of air- and bone-conducted speech sounds of the five Japanese vowels. The study revealed resistance to voice fluctuations due to speech disorders using the voice data of two persons with a cold.
{"title":"Feasibility of using Air-conducted and Bone-conducted Sounds Transmitted through Eyeglasses Frames for User Authentication","authors":"Shinichi Sugahara, Mikio Mori","doi":"10.1109/ICECCE52056.2021.9514184","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514184","url":null,"abstract":"Recently, the demand for eyeglasses as a local industry has declined. Therefore, there is a need to improve the design and functionalities of eyeglasses manufactured in Japan. This study investigated user authentication using air- and bone-conduction microphones built in the frame of eyeglasses. Therefore, we propose a new user authentication system that uses air- and bone-conducted speech signals for speaker identification using the spectral ratio of air- to bone-conducted speech as a feature quantity. Using machine learning methods, the data were analyzed for a speaker identification system with the logarithmic power spectrum of air- and bone-conducted speech sounds of the five Japanese vowels. The study revealed resistance to voice fluctuations due to speech disorders using the voice data of two persons with a cold.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114274765","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 : 2021-06-12DOI: 10.1109/ICECCE52056.2021.9514071
Ashwathy Bhooshan, V. Hari
This paper provides a solution to one of the biggest challenges of the profit investors which is the stock market prediction. It focuses on forecasting the stock market price based on the principle of Convolutional Neural Network (CNN) architecture that helps in feature extraction of data, adopting Long Short Term Memory (LSTM) for predicting the stock market and using a Kalman Filter to obtain a high accuracy prediction model. The model is evaluated on the stock market data of Apple Inc. and S&P 500. The result has shown that it is reliable to use a combination of CNN-LSTM and Kalman filter to predict the stock price with high prediction accuracy.
{"title":"Recurrent Neural Network Estimator for Stock Price","authors":"Ashwathy Bhooshan, V. Hari","doi":"10.1109/ICECCE52056.2021.9514071","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514071","url":null,"abstract":"This paper provides a solution to one of the biggest challenges of the profit investors which is the stock market prediction. It focuses on forecasting the stock market price based on the principle of Convolutional Neural Network (CNN) architecture that helps in feature extraction of data, adopting Long Short Term Memory (LSTM) for predicting the stock market and using a Kalman Filter to obtain a high accuracy prediction model. The model is evaluated on the stock market data of Apple Inc. and S&P 500. The result has shown that it is reliable to use a combination of CNN-LSTM and Kalman filter to predict the stock price with high prediction accuracy.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116163041","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 : 2021-06-12DOI: 10.1109/ICECCE52056.2021.9514204
B. B. Cardoso, Letícia Lagni Dagnese, M. A. Martins, K. D. Tomaz, S. de Francisci
The ground-penetrating radar (GPR) has become a very important tool for nondestructive underground exploration. The GPR is capable of capturing reflections that form high-resolution lines of the shallow subsurface and underground utility. These lines are processed by an expert who draws a 3D model of what was captured. For objects at different depths, different sizes and materials to be found by technology, the equipment must have a wide frequency range. Low frequency waves make it possible to identify larger objects at greater depths and high frequency waves detect smaller objects at low depths. This case study shows a practical example of the usage of the GPR in the underground distribution grid in the city of São Paulo, Brazil. It was carried out within the scope of a R&D project called “Urban Futurability”, by Enel Dlstribulção São Paulo. The results of the scanning done over 9 km make it possible to use the 3D model combined with a high-precision GPS for the elaboration of an underground network project that draws the best path for the installations, identifying rocks, denser and less dense soils, groundwater and other interference, allowing the work to be executed in a more efficient way.
探地雷达(GPR)已成为地下无损勘探的重要工具。探地雷达能够捕获反射，形成浅层地下和地下公用设施的高分辨率线。专家对这些线条进行处理，绘制出捕捉到的物体的3D模型。对于要通过技术发现的不同深度、不同尺寸、不同材质的物体，设备必须具有较宽的频率范围。低频波可以在较深的地方识别较大的物体，而高频波可以在较低的地方检测较小的物体。本案例研究展示了在巴西圣保罗地下配电网中使用探地雷达的一个实际例子。它是在一个名为“城市未来能力”的研发项目范围内进行的，该项目由Enel dlstribul o s o Paulo负责。超过9公里的扫描结果使3D模型与高精度GPS相结合，可以用于详细设计地下网络项目，为设施绘制最佳路径，识别岩石，密度较大和较低密度的土壤，地下水和其他干扰，从而使工作以更有效的方式执行。
{"title":"The use of GPR technologies for utility mapping in underground distribution grid conversion - Brazil use case","authors":"B. B. Cardoso, Letícia Lagni Dagnese, M. A. Martins, K. D. Tomaz, S. de Francisci","doi":"10.1109/ICECCE52056.2021.9514204","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514204","url":null,"abstract":"The ground-penetrating radar (GPR) has become a very important tool for nondestructive underground exploration. The GPR is capable of capturing reflections that form high-resolution lines of the shallow subsurface and underground utility. These lines are processed by an expert who draws a 3D model of what was captured. For objects at different depths, different sizes and materials to be found by technology, the equipment must have a wide frequency range. Low frequency waves make it possible to identify larger objects at greater depths and high frequency waves detect smaller objects at low depths. This case study shows a practical example of the usage of the GPR in the underground distribution grid in the city of São Paulo, Brazil. It was carried out within the scope of a R&D project called “Urban Futurability”, by Enel Dlstribulção São Paulo. The results of the scanning done over 9 km make it possible to use the 3D model combined with a high-precision GPS for the elaboration of an underground network project that draws the best path for the installations, identifying rocks, denser and less dense soils, groundwater and other interference, allowing the work to be executed in a more efficient way.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127313356","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 : 2021-06-12DOI: 10.1109/ICECCE52056.2021.9514248
Mohd Shafarudin Osman, A. Azizan, Khairul Hassan, Hadhrami Ab. Ghani, N. H. Hassan, F. Yakub, S. Daud, L. Latiff
Emergency and Trauma department (ETD) in Malaysia's public hospitals receives millions of patients than other clinics due to cheap charges and reliable services, however most of them are Green Zone non-critical patients. Long waiting time for patient treatment results into congestion and affects the quality of service provided in the ETD. To date only 20 public hospitals in Malaysia implements Hospital Information System (HIS) and patient waiting time is captured from the system manually, thus lacking the functionality to track patient in realtime. Despite studies conducted worldwide, studies on design, development and implementation of RTLS in public hospital in Malaysia have not been conducted yet. This paper examines a Bluetooth Low Energy (BLE) based Real-time Location System (RTLS) implementation in ETD with HIS integration to reduce patient waiting time. We develop a Bluetooth Low Energy (BLE) based RTLS prototype that is integrated with existing HIS at ETD, Hospital Putrajaya and augment data visualization interventions to reduce patient waiting time in ETD. Preliminary results show substantial benefits of patient waiting time reduction leading to improvement of service quality. Our preliminary findings show when RTLS is introduced in the ETD workflow, the mean ATC time was significantly reduced to 10.47% in comparison to HIS without RTLS.
{"title":"BLE-based Real-time Location System Integration with Hospital Information System to Reduce Patient Waiting Time","authors":"Mohd Shafarudin Osman, A. Azizan, Khairul Hassan, Hadhrami Ab. Ghani, N. H. Hassan, F. Yakub, S. Daud, L. Latiff","doi":"10.1109/ICECCE52056.2021.9514248","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514248","url":null,"abstract":"Emergency and Trauma department (ETD) in Malaysia's public hospitals receives millions of patients than other clinics due to cheap charges and reliable services, however most of them are Green Zone non-critical patients. Long waiting time for patient treatment results into congestion and affects the quality of service provided in the ETD. To date only 20 public hospitals in Malaysia implements Hospital Information System (HIS) and patient waiting time is captured from the system manually, thus lacking the functionality to track patient in realtime. Despite studies conducted worldwide, studies on design, development and implementation of RTLS in public hospital in Malaysia have not been conducted yet. This paper examines a Bluetooth Low Energy (BLE) based Real-time Location System (RTLS) implementation in ETD with HIS integration to reduce patient waiting time. We develop a Bluetooth Low Energy (BLE) based RTLS prototype that is integrated with existing HIS at ETD, Hospital Putrajaya and augment data visualization interventions to reduce patient waiting time in ETD. Preliminary results show substantial benefits of patient waiting time reduction leading to improvement of service quality. Our preliminary findings show when RTLS is introduced in the ETD workflow, the mean ATC time was significantly reduced to 10.47% in comparison to HIS without RTLS.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125461364","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 : 2021-06-12DOI: 10.1109/ICECCE52056.2021.9514133
S. Winberg, Subhas Singh
The World Health Organization (WHO) reported in 2019 that approximately 4.2 million premature deaths globally were due to ambient air pollution. A majority of these occurred in low to middle-income countries. This research project focuses on the development of a reusable real-time Event-driven Air Quality Inspection (EAQI) framework, to assist in the development of distributed sensor systems for collecting and analyzing pollution sensor measurements. The design is based around event streams, which store immutable raw data as events, providing a history of entities as well as latest values. This framework is designed for scalability, customizability, and ease of integration with data analysis methods. While the main objective of this project was to provide an application framework to facilitate public accessibility to air quality information, the framework design serves as a reusable template for developing new applications that require the scalability and inherently data-centric nature of this design. The framework was tested by building a representative, web-based application, which was tested to assess its fault tolerance, data validation and responsiveness. A user experience survey assessed characteristics of this application and users' views on its feasibility. The results were generally favorable, such as 69% of data request response being within 800 ms. In testing of its robustness, the application started to experience request timeouts beyond 500 concurrent users. Further work includes design additions for meteorological data feeds and plugin components.
{"title":"Real-Time Event-driven Air Quality Inspection Framework for City-wide Pollution Level Monitoring","authors":"S. Winberg, Subhas Singh","doi":"10.1109/ICECCE52056.2021.9514133","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514133","url":null,"abstract":"The World Health Organization (WHO) reported in 2019 that approximately 4.2 million premature deaths globally were due to ambient air pollution. A majority of these occurred in low to middle-income countries. This research project focuses on the development of a reusable real-time Event-driven Air Quality Inspection (EAQI) framework, to assist in the development of distributed sensor systems for collecting and analyzing pollution sensor measurements. The design is based around event streams, which store immutable raw data as events, providing a history of entities as well as latest values. This framework is designed for scalability, customizability, and ease of integration with data analysis methods. While the main objective of this project was to provide an application framework to facilitate public accessibility to air quality information, the framework design serves as a reusable template for developing new applications that require the scalability and inherently data-centric nature of this design. The framework was tested by building a representative, web-based application, which was tested to assess its fault tolerance, data validation and responsiveness. A user experience survey assessed characteristics of this application and users' views on its feasibility. The results were generally favorable, such as 69% of data request response being within 800 ms. In testing of its robustness, the application started to experience request timeouts beyond 500 concurrent users. Further work includes design additions for meteorological data feeds and plugin components.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126624135","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 : 2021-06-12DOI: 10.1109/ICECCE52056.2021.9514102
I. Golub, E. Boloev
The paper describes a method for calculation of energy losses in the three-phase four-wire secondary distribution network that allows, based on the measurements of smart meters, determination of losses in the network as a sum of losses occurring during power transmission from the power supply node of the network to every load node. This method for losses determination does not require knowledge of parameters of the network elements and of neutral wire grounding. Efficiency of the method is confirmed by comparison of losses in the main feeder of a real secondary distribution network with the estimates of losses obtained using a non-linear state estimation algorithm based on the simple iteration method with adjustment of voltages of phase wires relative to a neutral wire at each iteration. The possibility of distribution of total energy losses in the feeder between single-phase loads and phases of each three-phase load is shown. The proposed methodology will make it possible to distribute network losses among end users on an equitable basis taking into account contribution to total losses.
{"title":"Determination of Losses in Distribution Networks by Smart Meter Measurements","authors":"I. Golub, E. Boloev","doi":"10.1109/ICECCE52056.2021.9514102","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514102","url":null,"abstract":"The paper describes a method for calculation of energy losses in the three-phase four-wire secondary distribution network that allows, based on the measurements of smart meters, determination of losses in the network as a sum of losses occurring during power transmission from the power supply node of the network to every load node. This method for losses determination does not require knowledge of parameters of the network elements and of neutral wire grounding. Efficiency of the method is confirmed by comparison of losses in the main feeder of a real secondary distribution network with the estimates of losses obtained using a non-linear state estimation algorithm based on the simple iteration method with adjustment of voltages of phase wires relative to a neutral wire at each iteration. The possibility of distribution of total energy losses in the feeder between single-phase loads and phases of each three-phase load is shown. The proposed methodology will make it possible to distribute network losses among end users on an equitable basis taking into account contribution to total losses.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126992099","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 : 2021-06-12DOI: 10.1109/ICECCE52056.2021.9514075
Hasneen Zaman, Narottam Das
Electrical substation is one of the most important parts of power system network. Over the years, the substations have undergone several structural and technical modifications. The IEC 61850 standard launched by the International Electrotechnical Commission (IEC) has created a strong platform for modern Substation Automation Systems (SAS) based on Digital Communication Systems. To increase the system reliability and efficiency, the Substation Communication Network (SCN) should have a quicker response, especially during electrical faults. According to the IEC 61850 standard, the end-to-end (ETE) time delay for transmission and control of data has to be less than 4-ms which is achievable when the data packet size is smaller. However, when the packet size is larger, it exceeds the delay time limit. Hence, sending smaller data packets could be a solution, but sending too many smaller packets might create congestion in network incurring another delay issue. This paper presents a different network topology that is designed in Optimized Network Engineering Tools (OPNET) environment which is capable of transmitting and controlling larger data packets within the 4-ms time delay limit as recommended by the IEC 61850 standard.
{"title":"Analysis for the Improvement of IEC 61850 Based Substation Communications Using OPNET","authors":"Hasneen Zaman, Narottam Das","doi":"10.1109/ICECCE52056.2021.9514075","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514075","url":null,"abstract":"Electrical substation is one of the most important parts of power system network. Over the years, the substations have undergone several structural and technical modifications. The IEC 61850 standard launched by the International Electrotechnical Commission (IEC) has created a strong platform for modern Substation Automation Systems (SAS) based on Digital Communication Systems. To increase the system reliability and efficiency, the Substation Communication Network (SCN) should have a quicker response, especially during electrical faults. According to the IEC 61850 standard, the end-to-end (ETE) time delay for transmission and control of data has to be less than 4-ms which is achievable when the data packet size is smaller. However, when the packet size is larger, it exceeds the delay time limit. Hence, sending smaller data packets could be a solution, but sending too many smaller packets might create congestion in network incurring another delay issue. This paper presents a different network topology that is designed in Optimized Network Engineering Tools (OPNET) environment which is capable of transmitting and controlling larger data packets within the 4-ms time delay limit as recommended by the IEC 61850 standard.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127489844","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 electrical railway world knows for a number of years a marked interest characterized by a significant deployment of high-speed lines. This system is known for power quality problems especially the grid side negative sequence (NSC), harmonics, and reactive power. The purpose study was constructed to solve issue of power quality in electrified railway. Among the clearing and control systems belonging to the FACTS family a half-bridge-converter-based railway static power conditioner (HB-RPC) which have four power switches connected by two condensers in series. The objective of this paper is to validate the work of the HB-RPC and Ynev transformers which are employed together to reduce the reactive power, harmonics and NSC problems. To optimize the control strategy, the GA (Genetic Algorithm) is suggested. The simulation results using MATLAB/SIMULINK approve the presentation of the propose system and their control.
{"title":"Genetic Algorithm Approach of HB-RPC for Adaptive Power Quality Improvement in Railway Traction Chain","authors":"Chaib Ras Amira, Ramdane Bouzerara, Bouzeria Hamza, A. Meriem, Mammeri Imen","doi":"10.1109/ICECCE52056.2021.9514178","DOIUrl":"https://doi.org/10.1109/ICECCE52056.2021.9514178","url":null,"abstract":"The electrical railway world knows for a number of years a marked interest characterized by a significant deployment of high-speed lines. This system is known for power quality problems especially the grid side negative sequence (NSC), harmonics, and reactive power. The purpose study was constructed to solve issue of power quality in electrified railway. Among the clearing and control systems belonging to the FACTS family a half-bridge-converter-based railway static power conditioner (HB-RPC) which have four power switches connected by two condensers in series. The objective of this paper is to validate the work of the HB-RPC and Ynev transformers which are employed together to reduce the reactive power, harmonics and NSC problems. To optimize the control strategy, the GA (Genetic Algorithm) is suggested. The simulation results using MATLAB/SIMULINK approve the presentation of the propose system and their control.","PeriodicalId":302947,"journal":{"name":"2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127511974","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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