Pub Date : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9250976
Z. Azman, N. Nayan, A. Bakar, Zamri Yusop, M. H. Mamat, Muliana Tahan, N. Sahari, M. Y. Ahmad
The deposition of A1N thin film was conducted in three different working pressures of 3, 5 and 10 mTorr by HiPIMS method with tilted sputter target. XRD pattern shows nearly single crystalline of a-axis A1N thin films were produced. A1N thin film growth rate increase with the decrease of working pressure as agreed by FESEM cross-sectional images. The thickness of A1N thin film observed at 267 nm, 221nm, and 183 nm for 3 mTorr, 5 mTorr and 10 mTorr, respectively. The degree of crystallinity was observed higher at lower working pressure at 64.3% and reduced to 52.02% at 10 mTorr. However, the micro strain and dislocation density were observed improved over the increase of working pressure referring to single-crystalline a-axis A1N dominant peak.
{"title":"Deposition of AlN Thin Film by High-Power Impulse Magnetron Sputtering with Tilted Sputter Target at Different Working Pressure","authors":"Z. Azman, N. Nayan, A. Bakar, Zamri Yusop, M. H. Mamat, Muliana Tahan, N. Sahari, M. Y. Ahmad","doi":"10.1109/SCOReD50371.2020.9250976","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9250976","url":null,"abstract":"The deposition of A1N thin film was conducted in three different working pressures of 3, 5 and 10 mTorr by HiPIMS method with tilted sputter target. XRD pattern shows nearly single crystalline of a-axis A1N thin films were produced. A1N thin film growth rate increase with the decrease of working pressure as agreed by FESEM cross-sectional images. The thickness of A1N thin film observed at 267 nm, 221nm, and 183 nm for 3 mTorr, 5 mTorr and 10 mTorr, respectively. The degree of crystallinity was observed higher at lower working pressure at 64.3% and reduced to 52.02% at 10 mTorr. However, the micro strain and dislocation density were observed improved over the increase of working pressure referring to single-crystalline a-axis A1N dominant peak.","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122299262","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 : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9250987
F. Roslan, N. Saidin, S. Harun, A. A. Ralib
A relative humidity sensor based on plastic optical fibre (POF) is constructed by using chemical etching method. Agarose gel was chosen as the sensing layer with two different patterns which are fully coated pattern and spirally coated pattern. The agarose gel acts as a moisture absorbent due to its hydrophilic property. Full and spirally agarose coated fibre synthesis will be compared in terms of their sensitivity and limit of detection. The measured result shows that the spirally agarose-coated fibre has better sensitivity compared to the fully agarose-coated fibre. The increment in relative humidity percentage affected the refractive index of the cladding and contributed to higher leakage of transmitted light. As the relative humidity percentage (RH%) of magnesium chloride (MgCl2) inside the chamber varies from 50 RH% to 85 RH%, the output voltage of the spiral patterned fibre decreases linearly from 9.1 mV to 8.4 mV. It demonstrates the better linearity slope of over 80.95% and highest sensitivity of 0.0162 mV/% compared to the full patterned fibre. Hence, humidity sensor based on spirally agarose-coated POF demonstrates a high-resistant and reliable sensitivity towards the relative humidity of the ambient.
{"title":"Relative Humidity Sensor based on Tapered Plastic Optical Fibre with Full-and Spiral-Patterned Agarose Gel Coating","authors":"F. Roslan, N. Saidin, S. Harun, A. A. Ralib","doi":"10.1109/SCOReD50371.2020.9250987","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9250987","url":null,"abstract":"A relative humidity sensor based on plastic optical fibre (POF) is constructed by using chemical etching method. Agarose gel was chosen as the sensing layer with two different patterns which are fully coated pattern and spirally coated pattern. The agarose gel acts as a moisture absorbent due to its hydrophilic property. Full and spirally agarose coated fibre synthesis will be compared in terms of their sensitivity and limit of detection. The measured result shows that the spirally agarose-coated fibre has better sensitivity compared to the fully agarose-coated fibre. The increment in relative humidity percentage affected the refractive index of the cladding and contributed to higher leakage of transmitted light. As the relative humidity percentage (RH%) of magnesium chloride (MgCl2) inside the chamber varies from 50 RH% to 85 RH%, the output voltage of the spiral patterned fibre decreases linearly from 9.1 mV to 8.4 mV. It demonstrates the better linearity slope of over 80.95% and highest sensitivity of 0.0162 mV/% compared to the full patterned fibre. Hence, humidity sensor based on spirally agarose-coated POF demonstrates a high-resistant and reliable sensitivity towards the relative humidity of the ambient.","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126237968","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 : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9250958
Aminatul Saadiah Jumaat Ali, Latifah Abdullah, Maisarah Musa, M. Yunos, Ng Wee Wei Ki, Z. Tukiran, R. Hamdan, Mohd Hafiz Abd.Jalil Zainuddin
In agriculture, electric fence is used as one of the methods to protect the food crops, especially from wild animals. Wild animals such as monkeys and elephants will cause immense damage and losses of food crops of farmers if the fence is malfunction. Therefore, this paper proposed the IoT-based electric fence notification system that allows farmers to observe the status of the fence from their phone. In this work, the use of ACS 712 sensor is introduced to measure the current flows on the fence whilst a continuous current supply is assured by detecting the level of the battery via sensor. Blynk application is suggested in this work as a platform to notify the farmers via their phone. The initial findings show that the proposed system capable of notifying the farmer when there is no current supply to the fence. Nonetheless, this system allows the farmer to monitor the battery status remotely, which promote hassle-free farm supervision.
{"title":"Towards IoT-based Notification System for Agriculture Electric Fence","authors":"Aminatul Saadiah Jumaat Ali, Latifah Abdullah, Maisarah Musa, M. Yunos, Ng Wee Wei Ki, Z. Tukiran, R. Hamdan, Mohd Hafiz Abd.Jalil Zainuddin","doi":"10.1109/SCOReD50371.2020.9250958","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9250958","url":null,"abstract":"In agriculture, electric fence is used as one of the methods to protect the food crops, especially from wild animals. Wild animals such as monkeys and elephants will cause immense damage and losses of food crops of farmers if the fence is malfunction. Therefore, this paper proposed the IoT-based electric fence notification system that allows farmers to observe the status of the fence from their phone. In this work, the use of ACS 712 sensor is introduced to measure the current flows on the fence whilst a continuous current supply is assured by detecting the level of the battery via sensor. Blynk application is suggested in this work as a platform to notify the farmers via their phone. The initial findings show that the proposed system capable of notifying the farmer when there is no current supply to the fence. Nonetheless, this system allows the farmer to monitor the battery status remotely, which promote hassle-free farm supervision.","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115742631","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 : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9383186
F. Khan, M. N. Mohd, Muhammad Danial Khan, Susama Bagchi
the breast cancer cases have increased globally, in the last two decades. Analysis of histological images acquired through biopsy of the breast tissues is thought to be the most reliable way to assess if any cells show signs of malignancy. With the advent of deep neural networks, we are now able to diagnose the disease with near perfect accuracy instead of conventional techniques of mammography for breast cancer detection; however, work done in this area considers nuclei segmentation. This work is focussed on extending the applicability of deep learning technology where network is trained to perform segmentation and classify data as one of the four classes: normal, benign, in-situ and invasive. The classification accuracy achieved is 98.16% and the segmentation accuracy calculated using overlap coefficient from mean intersection over union is 86.39% on the ICIAR2018 Breast Cancer dataset.
{"title":"Breast Cancer Histological Images Nuclei Segmentation using Mask Regional Convolutional Neural Network","authors":"F. Khan, M. N. Mohd, Muhammad Danial Khan, Susama Bagchi","doi":"10.1109/SCOReD50371.2020.9383186","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9383186","url":null,"abstract":"the breast cancer cases have increased globally, in the last two decades. Analysis of histological images acquired through biopsy of the breast tissues is thought to be the most reliable way to assess if any cells show signs of malignancy. With the advent of deep neural networks, we are now able to diagnose the disease with near perfect accuracy instead of conventional techniques of mammography for breast cancer detection; however, work done in this area considers nuclei segmentation. This work is focussed on extending the applicability of deep learning technology where network is trained to perform segmentation and classify data as one of the four classes: normal, benign, in-situ and invasive. The classification accuracy achieved is 98.16% and the segmentation accuracy calculated using overlap coefficient from mean intersection over union is 86.39% on the ICIAR2018 Breast Cancer dataset.","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130462459","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 : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9250965
Abu Ubaidah bin Shamsudin, Chia Kim Seng, H. A. Rahman, D. Hanafi, Hazwaj Mhd Poad
The study proposed the simulation of the inverse kinematics (IK) controller for the 7 DOF robotic arm custom designed to measure the lung condition of contiguous patients. For this purpose, an electronic stethoscope will be attached to the end-effector of the robot arm. Currently, no robot has been developed for this purpose. In this research, the robot arm hardware was custom designed using the modular design of the motor and the Rapid Prototyping Solidwork to develop an appropriate robot arm. Next, the Robot Operating System (ROS) simulation was performed to evaluate the accuracy and execution of the inverse kinematic controller for the robot arm. The result shows that the IK controller has an accuracy of 0.005 mm and that the execution time was fast within 200 milliseconds.
{"title":"Development of 7 DOF Robotic Arm with Electronic Bluetooth Stethoscope for COVID Patient Medical Assesment","authors":"Abu Ubaidah bin Shamsudin, Chia Kim Seng, H. A. Rahman, D. Hanafi, Hazwaj Mhd Poad","doi":"10.1109/SCOReD50371.2020.9250965","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9250965","url":null,"abstract":"The study proposed the simulation of the inverse kinematics (IK) controller for the 7 DOF robotic arm custom designed to measure the lung condition of contiguous patients. For this purpose, an electronic stethoscope will be attached to the end-effector of the robot arm. Currently, no robot has been developed for this purpose. In this research, the robot arm hardware was custom designed using the modular design of the motor and the Rapid Prototyping Solidwork to develop an appropriate robot arm. Next, the Robot Operating System (ROS) simulation was performed to evaluate the accuracy and execution of the inverse kinematic controller for the robot arm. The result shows that the IK controller has an accuracy of 0.005 mm and that the execution time was fast within 200 milliseconds.","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133772316","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 : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9250954
Yin Qing Tan, Jorene Lim
The study aims to investigate on the association between cognitive performance and genetic variance of DRD2 for the student with different educational background. A total of 77 subjects were recruited with 37 art students and 40 science students. The subjects were required to carry out a cognitive test and blood sample is collected for genetic variance test. Written consent was obtained before the data collection. Genomic DNA was extracted from the blood for PCR. Genotype results revealed that both art and science groups have a similar allelic frequency which indicates that gene does not affect educational preference. The performance of the MCCB cognitive test was analyzed and it did not differ significantly in both groups. Thus, the study result suggested that educational background will not affect the cognitive performance. In addition, there was no significant association between gene and cognitive performance for subjects from different educational background. However, there was a strong positive correlation between the cognition performance of reasoning and problem solving and speed of processing.
{"title":"Association of Cognition Performance and Genetic Variance of DRD2 Taq1A for Science and Art Stream Students","authors":"Yin Qing Tan, Jorene Lim","doi":"10.1109/SCOReD50371.2020.9250954","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9250954","url":null,"abstract":"The study aims to investigate on the association between cognitive performance and genetic variance of DRD2 for the student with different educational background. A total of 77 subjects were recruited with 37 art students and 40 science students. The subjects were required to carry out a cognitive test and blood sample is collected for genetic variance test. Written consent was obtained before the data collection. Genomic DNA was extracted from the blood for PCR. Genotype results revealed that both art and science groups have a similar allelic frequency which indicates that gene does not affect educational preference. The performance of the MCCB cognitive test was analyzed and it did not differ significantly in both groups. Thus, the study result suggested that educational background will not affect the cognitive performance. In addition, there was no significant association between gene and cognitive performance for subjects from different educational background. However, there was a strong positive correlation between the cognition performance of reasoning and problem solving and speed of processing.","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129287818","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 : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9250998
Fayad Ghawbar, A. Jumadi, H. Majid, F. A. Saparudin, A. S. Ghafar, B. A. F. Esmail
In this paper, a compact self-isolated 4-antenna multiple-input-multiple-output (MIMO) is proposed for the fifth-generation (5G) mobile applications. The proposed design is composed of inverted U-shaped, feeding element T-shaped, two circular-ring radiators and two stubs aligned together in a specified location based on the distance of L2 and H2. The compact size reduction introduced in this design is due to the alignment of the circular-rings with the vertical stubs and the microstrip line feeding. The proposed compact size of the selfisolated 4-antenna MIMO system offers very good isolation without using any decoupling techniques, indicated by the transmission coefficients which reach above -30 dB for S12, S32, S34 and S23 for λ/4 and reaches above -20 dB for λ/14. Besides, the result values for reflection coefficients display significant performance reaches above -50 dB for λ/4 and -38 dB for λ/14 which indicates the good performance of the compact MIMO antennas, despite varying the distance and despite its arrangement on a high loss FR-4 dielectric substrate. The MIMO antenna offers significant features to be used in 5G mobile applications
{"title":"Compact self-Isolated MIMO antenna system with low mutual coupling for 5G mobile applications","authors":"Fayad Ghawbar, A. Jumadi, H. Majid, F. A. Saparudin, A. S. Ghafar, B. A. F. Esmail","doi":"10.1109/SCOReD50371.2020.9250998","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9250998","url":null,"abstract":"In this paper, a compact self-isolated 4-antenna multiple-input-multiple-output (MIMO) is proposed for the fifth-generation (5G) mobile applications. The proposed design is composed of inverted U-shaped, feeding element T-shaped, two circular-ring radiators and two stubs aligned together in a specified location based on the distance of L2 and H2. The compact size reduction introduced in this design is due to the alignment of the circular-rings with the vertical stubs and the microstrip line feeding. The proposed compact size of the selfisolated 4-antenna MIMO system offers very good isolation without using any decoupling techniques, indicated by the transmission coefficients which reach above -30 dB for S12, S32, S34 and S23 for λ/4 and reaches above -20 dB for λ/14. Besides, the result values for reflection coefficients display significant performance reaches above -50 dB for λ/4 and -38 dB for λ/14 which indicates the good performance of the compact MIMO antennas, despite varying the distance and despite its arrangement on a high loss FR-4 dielectric substrate. The MIMO antenna offers significant features to be used in 5G mobile applications","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130492586","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 : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9383185
Muhammad Rusyahmi Danial Razali, N. A. Abdul-Kadir, Johari Kasim
The internet of Things (IoT) is a technology that has shown impact to revolutionize individual live. In the Integration Era in year 2005-2018, the researcher and experts have started to combine the security system with the IoT technology. One of the main reasons is, the IoT being used as the source of data storage. Same as Closed-Circuit Television (CCTV), as one of the main component in security system; the data storage is being upgraded from a digital video recorder (DVR) which is a kind of memory card to an endless network video recorder (NVR), which is internet cloud data storage. The NVR camera system is widely known as Internet Protocol Camera (IP Camera). This project is mainly focusing on the security system which could be implemented by community, either in-house or workplace, as the system has dual modes of operation (security mode and calibration mode). The improvement in term of notification, user friendly system is further discussed in this paper. From the notification, the users shall be aware with the location of the burglar. This study shall provide the development of new Smart Home Security, focusing on CCTV system technology.
{"title":"Smart Home Security with Dual Modes","authors":"Muhammad Rusyahmi Danial Razali, N. A. Abdul-Kadir, Johari Kasim","doi":"10.1109/SCOReD50371.2020.9383185","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9383185","url":null,"abstract":"The internet of Things (IoT) is a technology that has shown impact to revolutionize individual live. In the Integration Era in year 2005-2018, the researcher and experts have started to combine the security system with the IoT technology. One of the main reasons is, the IoT being used as the source of data storage. Same as Closed-Circuit Television (CCTV), as one of the main component in security system; the data storage is being upgraded from a digital video recorder (DVR) which is a kind of memory card to an endless network video recorder (NVR), which is internet cloud data storage. The NVR camera system is widely known as Internet Protocol Camera (IP Camera). This project is mainly focusing on the security system which could be implemented by community, either in-house or workplace, as the system has dual modes of operation (security mode and calibration mode). The improvement in term of notification, user friendly system is further discussed in this paper. From the notification, the users shall be aware with the location of the burglar. This study shall provide the development of new Smart Home Security, focusing on CCTV system technology.","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123183214","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 : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9250971
Ahmed S. Addurat, J. Pasupuleti
There is a worldwide concern about environmental issues and fossil fuel depletion. That encourages the world to inject the renewable energy sources to the power system, and this could be safely done at the distribution level using distributed generation units. This paper investigates the impacts of photovoltaic distributed generation (PVDG) on distribution network power losses and voltage profile. The study concentrates on examining the number of PVDGs parameter at different penetration levels while other parameters such as location and size are considered. Modelling and simulation are curried out using MATLAB simulation software.
{"title":"The impacts of number of solar photovoltaic units on distribution network losses and voltage profile","authors":"Ahmed S. Addurat, J. Pasupuleti","doi":"10.1109/SCOReD50371.2020.9250971","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9250971","url":null,"abstract":"There is a worldwide concern about environmental issues and fossil fuel depletion. That encourages the world to inject the renewable energy sources to the power system, and this could be safely done at the distribution level using distributed generation units. This paper investigates the impacts of photovoltaic distributed generation (PVDG) on distribution network power losses and voltage profile. The study concentrates on examining the number of PVDGs parameter at different penetration levels while other parameters such as location and size are considered. Modelling and simulation are curried out using MATLAB simulation software.","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123993962","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 : 2020-09-27DOI: 10.1109/SCOReD50371.2020.9250983
Ahsan Bashir, S. Zulkifli, E. Z. Z. Abidin, A. Aziz
A free-piston engine (FPE) is a linearly-reciprocating internal combustion engine (ICE) which offers many advantages over the conventional crank-slider ICE. Benefits include improved thermal and mechanical efficiencies, multiple fuel capability due to the free-piston dynamics and variable compression ratio, and higher power-to-weight ratio due to single-moving part and compact design. Coupled to a linear electric generator (LG), the resultant system is a free-piston linear electric generator (FPLG) - an alternative power source for vehicle propulsion and portable power generation. This paper discusses control issues of the FPLG and proposes an electrical solution to achieve sustained operation in the face of combustion variation and engine misfires. It presents simulation results on the effect of varying output load current on piston trajectory, for viability of automatic control in an otherwise unconstrained FPLG.
{"title":"Control of Piston Trajectory in a Free-Piston Linear Electric Generator by Load Current Modulation","authors":"Ahsan Bashir, S. Zulkifli, E. Z. Z. Abidin, A. Aziz","doi":"10.1109/SCOReD50371.2020.9250983","DOIUrl":"https://doi.org/10.1109/SCOReD50371.2020.9250983","url":null,"abstract":"A free-piston engine (FPE) is a linearly-reciprocating internal combustion engine (ICE) which offers many advantages over the conventional crank-slider ICE. Benefits include improved thermal and mechanical efficiencies, multiple fuel capability due to the free-piston dynamics and variable compression ratio, and higher power-to-weight ratio due to single-moving part and compact design. Coupled to a linear electric generator (LG), the resultant system is a free-piston linear electric generator (FPLG) - an alternative power source for vehicle propulsion and portable power generation. This paper discusses control issues of the FPLG and proposes an electrical solution to achieve sustained operation in the face of combustion variation and engine misfires. It presents simulation results on the effect of varying output load current on piston trajectory, for viability of automatic control in an otherwise unconstrained FPLG.","PeriodicalId":142867,"journal":{"name":"2020 IEEE Student Conference on Research and Development (SCOReD)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125390755","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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