Pub Date : 2014-03-17DOI: 10.1109/PECON.2014.7062433
Y. Abbas, R. Jidin, Norziana Jami, M. Z’aba
Monitoring assets such as remote electrical substations and remote small power stations often pose challenges to utility companies. Often, cheap solutions to monitor and to provide an online control for these assets are by means of cellular. However, using this kind of communication requires proper security measures, but not at the expense of cost. Therefore, to improve security of wireless communication of these remote assets, we would like to propose a light-weight crypto-algorithm in the form hardware circuits called IP core. The crypto-algorithm has been implemented within an environment of microprocessor system on a XILINX Field Programmable Logic Arrays chip. A complete microprocessor system consists of Micro-Blaze processor, memory, serial communication and a light-weight crypto-algorithm can be fitted on a single XILINX VIRTEX chip. We have tested the system with a simplified version of the crypto-algorithm on a VIRTEX evaluation board, using GSM modems communicate over a cellular network.
{"title":"Securing electrical substation's wireless messaging with a Lightweight Crypto-Algorithm IP core","authors":"Y. Abbas, R. Jidin, Norziana Jami, M. Z’aba","doi":"10.1109/PECON.2014.7062433","DOIUrl":"https://doi.org/10.1109/PECON.2014.7062433","url":null,"abstract":"Monitoring assets such as remote electrical substations and remote small power stations often pose challenges to utility companies. Often, cheap solutions to monitor and to provide an online control for these assets are by means of cellular. However, using this kind of communication requires proper security measures, but not at the expense of cost. Therefore, to improve security of wireless communication of these remote assets, we would like to propose a light-weight crypto-algorithm in the form hardware circuits called IP core. The crypto-algorithm has been implemented within an environment of microprocessor system on a XILINX Field Programmable Logic Arrays chip. A complete microprocessor system consists of Micro-Blaze processor, memory, serial communication and a light-weight crypto-algorithm can be fitted on a single XILINX VIRTEX chip. We have tested the system with a simplified version of the crypto-algorithm on a VIRTEX evaluation board, using GSM modems communicate over a cellular network.","PeriodicalId":126366,"journal":{"name":"2014 IEEE International Conference on Power and Energy (PECon)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114284244","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 : 2014-03-17DOI: 10.1109/PECON.2014.7062408
N. A. Muhamad, K. Y. Lau, I. Ibrahim
Polymer-based insulator was widely used in high voltage application. This research was carried out to study effect of different percentages of natural rubber blended with high density polyethylene (HDPE) polymers towards improvement of electrical breakdown and tensile strength. In this study, different percentages of natural rubber were used to blend with HDPE to form HDPE + DPNR (10%, 20%, and 30% DPNR) and HDPE + SMR 10 (10%, 20%, and 30% SMR 10) composites. The pure HDPE and composites were tested and compared for any changes and improvement in term of breakdown voltage and tensile strength. This study found that the addition of natural rubber would improve the electrical breakdown properties; with addition of 20% DPNR to HDPE gave the best results. In addition it also found that for all composites passed the minimum requirement of breakdown voltage set by standard IEC 60243 that is more than 10 kV/mm. In contrast, for the tensile strength test, the addition of natural rubber only will decrease the tensile strength of all composites compared to pure HDPE. However, all of the resulting HDPE + DPNR and HDPE + SMR 10 composites still possessed a tensile strength more than the minimum requirement set by ISO 34-1 that is 6 N/mm.
{"title":"Variation of natural rubber percentage add to high density polyethylene (HDPE) for electrical breakdown improvement","authors":"N. A. Muhamad, K. Y. Lau, I. Ibrahim","doi":"10.1109/PECON.2014.7062408","DOIUrl":"https://doi.org/10.1109/PECON.2014.7062408","url":null,"abstract":"Polymer-based insulator was widely used in high voltage application. This research was carried out to study effect of different percentages of natural rubber blended with high density polyethylene (HDPE) polymers towards improvement of electrical breakdown and tensile strength. In this study, different percentages of natural rubber were used to blend with HDPE to form HDPE + DPNR (10%, 20%, and 30% DPNR) and HDPE + SMR 10 (10%, 20%, and 30% SMR 10) composites. The pure HDPE and composites were tested and compared for any changes and improvement in term of breakdown voltage and tensile strength. This study found that the addition of natural rubber would improve the electrical breakdown properties; with addition of 20% DPNR to HDPE gave the best results. In addition it also found that for all composites passed the minimum requirement of breakdown voltage set by standard IEC 60243 that is more than 10 kV/mm. In contrast, for the tensile strength test, the addition of natural rubber only will decrease the tensile strength of all composites compared to pure HDPE. However, all of the resulting HDPE + DPNR and HDPE + SMR 10 composites still possessed a tensile strength more than the minimum requirement set by ISO 34-1 that is 6 N/mm.","PeriodicalId":126366,"journal":{"name":"2014 IEEE International Conference on Power and Energy (PECon)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133806205","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 : 2014-03-17DOI: 10.1109/PECON.2014.7062465
A. H. Mutlag, H. Shareef, A. Mohamed
This work imparts a control strategy for stand-alone photovoltaic (PV) system by means of fuzzy logic controller (FLC). The objective for this endeavor is to manage the power quality supplied from a PV system mainly in the course of load variation. The controller scheme is consist from voltage-frequency (Vf) control strategy based on a synchronous reference frame and the FLC. The FLC is an intelligent controller that is utilized to develop the power control parameters. To control the voltage, as well as the frequency of the three-phase voltage source inverter (VSI), seven gbell membership functions are implemented for the inputs as well as for the output. The results show that the controller was successful in delivering peak voltage of 339V. Furthermore, total harmonic distortion of the voltage waveform fulfilled the international standard, found to be 3.58%. The outcomes also indicated that the suggested controller have a superior response to fulfill the power quality requirements and show the robustness of the suggested control strategy.
{"title":"Power quality enhancement in autonomous PV system using fuzzy logic controller","authors":"A. H. Mutlag, H. Shareef, A. Mohamed","doi":"10.1109/PECON.2014.7062465","DOIUrl":"https://doi.org/10.1109/PECON.2014.7062465","url":null,"abstract":"This work imparts a control strategy for stand-alone photovoltaic (PV) system by means of fuzzy logic controller (FLC). The objective for this endeavor is to manage the power quality supplied from a PV system mainly in the course of load variation. The controller scheme is consist from voltage-frequency (Vf) control strategy based on a synchronous reference frame and the FLC. The FLC is an intelligent controller that is utilized to develop the power control parameters. To control the voltage, as well as the frequency of the three-phase voltage source inverter (VSI), seven gbell membership functions are implemented for the inputs as well as for the output. The results show that the controller was successful in delivering peak voltage of 339V. Furthermore, total harmonic distortion of the voltage waveform fulfilled the international standard, found to be 3.58%. The outcomes also indicated that the suggested controller have a superior response to fulfill the power quality requirements and show the robustness of the suggested control strategy.","PeriodicalId":126366,"journal":{"name":"2014 IEEE International Conference on Power and Energy (PECon)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131028164","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 : 2014-03-17DOI: 10.1109/PECON.2014.7062412
Nurul Aishah Mohd Rosdi, F. H. Nordin, A. Ramasamy
The electricity waste is severe especially in large organizational buildings where the use of air conditioners, fridges and electrical motors are rampant. Due to lack of energy saving consciousness, users may not switch off this equipment after use. Thus, it would be an advantage if there exist a system that will be able to identify the appliances from one place without the residence having to go and check the state of the appliance or without having to place various sensors intrusively. Since most electrical appliances emit magnetic fields, the paper proposes to use non-intrusive magnetic field signature waveforms to identify the type of appliance used. The magnetic field emitted by table fan, blender and hairdryer are chosen for this purpose. The magnetic field from these three appliances are collected from four different measurement distances i.e. (i) 0cm (ii) 10cm (iii) 30cm and (iv) 60cm. The features of the magnetic field are then extracted and trained offline using the Probabilistic Neural Network (PNN). Once trained, the PNN shows that it is able to successfully identify the appliances regardless of the measurement distance.
{"title":"Identification of electrical appliances using non-intrusive magnetic field and probabilistic neural network (PNN)","authors":"Nurul Aishah Mohd Rosdi, F. H. Nordin, A. Ramasamy","doi":"10.1109/PECON.2014.7062412","DOIUrl":"https://doi.org/10.1109/PECON.2014.7062412","url":null,"abstract":"The electricity waste is severe especially in large organizational buildings where the use of air conditioners, fridges and electrical motors are rampant. Due to lack of energy saving consciousness, users may not switch off this equipment after use. Thus, it would be an advantage if there exist a system that will be able to identify the appliances from one place without the residence having to go and check the state of the appliance or without having to place various sensors intrusively. Since most electrical appliances emit magnetic fields, the paper proposes to use non-intrusive magnetic field signature waveforms to identify the type of appliance used. The magnetic field emitted by table fan, blender and hairdryer are chosen for this purpose. The magnetic field from these three appliances are collected from four different measurement distances i.e. (i) 0cm (ii) 10cm (iii) 30cm and (iv) 60cm. The features of the magnetic field are then extracted and trained offline using the Probabilistic Neural Network (PNN). Once trained, the PNN shows that it is able to successfully identify the appliances regardless of the measurement distance.","PeriodicalId":126366,"journal":{"name":"2014 IEEE International Conference on Power and Energy (PECon)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134356086","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 : 2014-03-17DOI: 10.1109/PECON.2014.7062473
M. R. B. Khan, R. Jidin, J. Pasupuleti, S. A. Shaaya
This paper proposes hydropower potential sites for a resort island located in the South China Sea. Furthermore, the effects of seasonal climate to hydropower generation are also discussed. The resort island selected is Tioman, as it represents the typical energy requirements of many resort islands in the South China Sea. The island relies mainly on diesel-fuel for electricity generation. However, diesel is subjected to high and volatile market prices, high operation and maintenance costs, and poses environmental risks. Therefore, to mitigate diesel fuel dependency, reconnaissance studies were conducted through topographic maps and hydrological studies in order to determine the potential sites or locations available for the development of a micro-hydropower plant in Tioman Island. The result shows that a total of 10 sites identified to have micro-hydro potential from 26 investigated sites. From the monthly estimated river flow, it can be seen that the hydropower in Tioman Island varies seasonally, having the highest potential during the northeast monsoon season.
{"title":"Micro-hydropower potential assessment and generation volatility due to seasonal climate","authors":"M. R. B. Khan, R. Jidin, J. Pasupuleti, S. A. Shaaya","doi":"10.1109/PECON.2014.7062473","DOIUrl":"https://doi.org/10.1109/PECON.2014.7062473","url":null,"abstract":"This paper proposes hydropower potential sites for a resort island located in the South China Sea. Furthermore, the effects of seasonal climate to hydropower generation are also discussed. The resort island selected is Tioman, as it represents the typical energy requirements of many resort islands in the South China Sea. The island relies mainly on diesel-fuel for electricity generation. However, diesel is subjected to high and volatile market prices, high operation and maintenance costs, and poses environmental risks. Therefore, to mitigate diesel fuel dependency, reconnaissance studies were conducted through topographic maps and hydrological studies in order to determine the potential sites or locations available for the development of a micro-hydropower plant in Tioman Island. The result shows that a total of 10 sites identified to have micro-hydro potential from 26 investigated sites. From the monthly estimated river flow, it can be seen that the hydropower in Tioman Island varies seasonally, having the highest potential during the northeast monsoon season.","PeriodicalId":126366,"journal":{"name":"2014 IEEE International Conference on Power and Energy (PECon)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134488995","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 : 2014-03-17DOI: 10.1109/PECON.2014.7062451
J. Ali, M. A. Hannan, A. Mohamed
Optimization techniques are become more popular for the improvement in control of Three Phase Induction Motor (TIM). Also the Volt/Hz (V/f) control and space vector pulse width modulation (SVPWM) are used to reduce the harmonics level related to other control and modulation techniques. This paper deals with the tuning of PI controller parameters to be used in TIM. Particle Swarm Optimization (PSO) algorithm is used to tune each parameter of PI speed controller to improve the speed response performance of the TIM. By designing appropriate PSO algorithm, Kp and Ki of the PI speed controller parameters are tuned for TIM operation with SVPWM Switching and V/f Control. The performance of PI speed controller on the TIM is measured by estimating the change of speed and torque under speed response condition. It is found that the performance of the PI controller is robust in terms of overshoot, settling time, steady state error and RMSE.
{"title":"PSO algorithm for Three Phase Induction Motor drive with SVPWM Switching and V/f Control","authors":"J. Ali, M. A. Hannan, A. Mohamed","doi":"10.1109/PECON.2014.7062451","DOIUrl":"https://doi.org/10.1109/PECON.2014.7062451","url":null,"abstract":"Optimization techniques are become more popular for the improvement in control of Three Phase Induction Motor (TIM). Also the Volt/Hz (V/f) control and space vector pulse width modulation (SVPWM) are used to reduce the harmonics level related to other control and modulation techniques. This paper deals with the tuning of PI controller parameters to be used in TIM. Particle Swarm Optimization (PSO) algorithm is used to tune each parameter of PI speed controller to improve the speed response performance of the TIM. By designing appropriate PSO algorithm, Kp and Ki of the PI speed controller parameters are tuned for TIM operation with SVPWM Switching and V/f Control. The performance of PI speed controller on the TIM is measured by estimating the change of speed and torque under speed response condition. It is found that the performance of the PI controller is robust in terms of overshoot, settling time, steady state error and RMSE.","PeriodicalId":126366,"journal":{"name":"2014 IEEE International Conference on Power and Energy (PECon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129705843","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 : 2014-03-17DOI: 10.1109/PECON.2014.7062422
N. Othman, M. Piah, Z. Adzis, H. Ahmad
This paper studies the charge distribution on the transmission line glass insulator surfaces under two different ac voltages viz. 28 kV and 33 kV. A string of four insulator units under dry and clean conditions is taken as the main research object. An attempt to capture the accumulated charge has been made by using radially shaped stainless steel mesh placed axially at a distance of 2 cm from each glass insulator circumference. Results show that the distribution of charge across each glass of insulator in the string is uneven, and the value of surface charge increases with the increment of applied voltage.
{"title":"Measurement of surface charge distribution on glass insulator using steel mesh","authors":"N. Othman, M. Piah, Z. Adzis, H. Ahmad","doi":"10.1109/PECON.2014.7062422","DOIUrl":"https://doi.org/10.1109/PECON.2014.7062422","url":null,"abstract":"This paper studies the charge distribution on the transmission line glass insulator surfaces under two different ac voltages viz. 28 kV and 33 kV. A string of four insulator units under dry and clean conditions is taken as the main research object. An attempt to capture the accumulated charge has been made by using radially shaped stainless steel mesh placed axially at a distance of 2 cm from each glass insulator circumference. Results show that the distribution of charge across each glass of insulator in the string is uneven, and the value of surface charge increases with the increment of applied voltage.","PeriodicalId":126366,"journal":{"name":"2014 IEEE International Conference on Power and Energy (PECon)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127877496","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 : 2014-03-17DOI: 10.1109/PECON.2014.7062411
F. Salim, K. M. Nor, D. M. Said, A. A. Rahman
In this paper, a project initiated by the Energy Commission of Malaysia has been carried out to find the level of power quality in Malaysia as well as to estimate the cost associated with power quality. Normally, industry has a production target to be achieved yearly. To maintain the quality of production, several factors must be taken into account, such as labor quality, working environment and facilities. However, the quality of power supply is the most significant factor to ensure the continuous production. Nowadays, the power quality problems are increasing dramatically with the increasing use of non-linear load. Studies from other countries have shown that this problem can cause substantial issues. The impact of power quality problems, especially voltage sag on several industries in Malaysia and the costs incurred are discussed in this paper. The estimation of cost is calculated for a voltage sag events that has been captured from the optimum monitor locations. The estimation is made based on the size of the affected area and the number of large power consumer in that affected area.
{"title":"Voltage sags cost estimation for malaysian industries","authors":"F. Salim, K. M. Nor, D. M. Said, A. A. Rahman","doi":"10.1109/PECON.2014.7062411","DOIUrl":"https://doi.org/10.1109/PECON.2014.7062411","url":null,"abstract":"In this paper, a project initiated by the Energy Commission of Malaysia has been carried out to find the level of power quality in Malaysia as well as to estimate the cost associated with power quality. Normally, industry has a production target to be achieved yearly. To maintain the quality of production, several factors must be taken into account, such as labor quality, working environment and facilities. However, the quality of power supply is the most significant factor to ensure the continuous production. Nowadays, the power quality problems are increasing dramatically with the increasing use of non-linear load. Studies from other countries have shown that this problem can cause substantial issues. The impact of power quality problems, especially voltage sag on several industries in Malaysia and the costs incurred are discussed in this paper. The estimation of cost is calculated for a voltage sag events that has been captured from the optimum monitor locations. The estimation is made based on the size of the affected area and the number of large power consumer in that affected area.","PeriodicalId":126366,"journal":{"name":"2014 IEEE International Conference on Power and Energy (PECon)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133175003","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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