N. H. Rahim, K. Y. Lau, S. Kamarudin, N. Muhamad, N. Mohamad, W. Rahman
{"title":"Effect of Nanofiller Calcination on Breakdown Performance of Zirconia Based Polyethylene Nanocomposites","authors":"N. H. Rahim, K. Y. Lau, S. Kamarudin, N. Muhamad, N. Mohamad, W. Rahman","doi":"10.1109/PECON.2018.8684065","DOIUrl":"https://doi.org/10.1109/PECON.2018.8684065","url":null,"abstract":"Dielectrics are widely used in electrical and high voltage systems. Studies on new dielectric materials, especially polymer nanocomposites, have been extensively carried out in order to investigate the potential improvements of the materials in high voltage insulation. Significantly, the interface between the base material (polymer) and the nanofiller is a vital factor that influences the dielectric performance of the materials. This paper reports on an investigation into the AC and DC breakdown performance of unfilled and polyethylene nanocomposites containing zirconium oxide (ZrO2) nanofillers at different amounts; 1 wt%, 4 wt%, and 8wt%. The chemical structures of the materials were characterized using Fourier transform infrared (FTIR) spectroscopy. Dielectric spectroscopy was used to measure the dielectric permittivity of the samples. Breakdown testing showed that there were no significant changes on the AC breakdown behaviors of nanocomposites containing both uncalcined and calcined nanofillers. Meanwhile, substantial changes were observed on the materials’ DC breakdown strength, even by introducing a small amount of nanofiller (1 wt%); the DC breakdown strength of the nanocomposites enhanced for those containing calcined nanofillers compared to uncalcined nanofillers. The observation is associated with the calcination process of the nanofillers.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132310624","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}
Muhammad Qasim Khan, Musse Mohamud Ahmed, A. Haidar, N. Julai, Mohammad Kamarul Hasan
{"title":"Synchrophasors Based Wide Area Protection and Phasor Estimation: A Review","authors":"Muhammad Qasim Khan, Musse Mohamud Ahmed, A. Haidar, N. Julai, Mohammad Kamarul Hasan","doi":"10.1109/PECON.2018.8684046","DOIUrl":"https://doi.org/10.1109/PECON.2018.8684046","url":null,"abstract":"Phasor Measurement Units (PMUs) are normally used in Wide Area Measurement System (WAMS) for vast applications, such as monitoring the transmission system status over bulky areas including the control and protection. Therefore, this paper reviews the power system protection in relation to the synchronized PMUs and the applications of phasor estimation techniques. Furthermore, the paper elaborates the research works on the applications of PMU for diverse features. The structure and types of PMUs are described utilizing the mathematical modeling of simple Discrete Fourier Transform (DFT) with Recursive and Non-Recursive estimation methods. The paper also presents the results of some published studies for two algorithms (Recursive and Non-Recursive). The review has revealed that the Non-Recursive algorithm is more accurate and gives robust estimation results.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133380553","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}
{"title":"Optimal Photovoltaic Distributed Generation Placement for Losses Reduction using Improved Lighting Search Algorithm","authors":"L. A. Wong, N. Asrina Ramlee, Tien Ming Hii","doi":"10.1109/PECON.2018.8684163","DOIUrl":"https://doi.org/10.1109/PECON.2018.8684163","url":null,"abstract":"This paper presents an approach to obtain the optimal photovoltaic-based distribution generation (PVDG) placement using quantum-inspired binary lightning search algorithm (QBLSA). The objective function is computed with the aim to reduce the power losses in the PVDG integrated power network. The performance of the QBLSA has been validated.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127371311","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}
S. Kamarudin, K. Y. Lau, N. H. Rahim, C. Tan, W. Rahman
{"title":"AC Breakdown Performance of Non-isothermally Crystallized Polyethylene/Silicon Nitride Nanocomposites","authors":"S. Kamarudin, K. Y. Lau, N. H. Rahim, C. Tan, W. Rahman","doi":"10.1109/PECON.2018.8684152","DOIUrl":"https://doi.org/10.1109/PECON.2018.8684152","url":null,"abstract":"Polymer nanocomposites has a huge potential to serve as dielectric materials. These materials were found to have a great capability in withstanding high voltage levels. In nanocomposites development, the breakdown strength of the materials was often reported to be higher, lower or similar, in comparison with the unfilled polymer. Because of this, the breakdown performance of nanocomposites is said to be dependent not only on the polymer/nanofiller combination, but also on the sample preparation techniques. Unfortunately, factors leading to increased or decreased the breakdown strength of nanocomposites are less understood. In this paper, investigation into polyethylene blend systems that contain different amounts of silicon nitrite nanofiller with different non-isothermal crystallization processes was reported. The non-isothermal crystallization techniques were determined by fast, medium and slow cooling rate conditions while preparing the samples. Differential scanning calorimetry (DSC) was used to characterize the thermal behavior of the polymer nanocomposites. The AC breakdown data showed that the use of different non-isothermal crystallization techniques affected the AC breakdown strength of each material type.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123627039","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}
S. Taghizadeh, W. Water, M. J. Hossain, Fida Hasan Md Raf, Junwei Lu
{"title":"An Enhanced Adaptive Filter for Orthogonal Signal Generation in a Single-phase DQ Current Controller","authors":"S. Taghizadeh, W. Water, M. J. Hossain, Fida Hasan Md Raf, Junwei Lu","doi":"10.1109/PECON.2018.8684050","DOIUrl":"https://doi.org/10.1109/PECON.2018.8684050","url":null,"abstract":"The development of a suitable and feasible direct- quadrature (DQ) transformation theory for a single-phase current controller has always been a challenge for designers, as an additional orthogonal signal generation (OSG) block is required to generate the orthogonal component of the grid current. Several methods have been investigated in the literature that mostly exhibit poor steady-state and dynamic performance. This paper proposes a new method, which uses an enhanced-adaptive-filter algorithm and can address the limitations of existing methods. The proposed technique operates without any delay and demonstrates improved steady- state and dynamic performance. It can reduce the harmonics of the input signal as it generates orthogonal component of the grid current. Its robustness, fast response and particularly its simplicity make the proposed algorithm well-suited to working as an OSG block in the control system of a power electronic appliance (e.g., static synchronous compensator, active power filter, and unified power flow controller). The performance of the proposed algorithm is verified in a single-phase grid- connected voltage-source converter application. Stability analysis, simulation and experimental results verify the efficacy, reliability and contribution of the proposed method.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127199080","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}
{"title":"Reliability Test of a Power System Containing High Voltage Circuit Breaker Under Different Operating Conditions","authors":"M. Razzak, Farzam Aidelkhani","doi":"10.1109/PECON.2018.8684045","DOIUrl":"https://doi.org/10.1109/PECON.2018.8684045","url":null,"abstract":"High voltage circuit breakers are indispensable in any operational power transmission and distribution system, and hence the electric arc, being a crucial part of it, is equally important as well. However, the reliability is the key feature of a modern and smart power system. This paper presents a reliability test analysis of a power system that contains a high voltage circuit breaker. The arc produced by the circuit breaker under different fault conditions is simulated with a Black Box Model (Mayr Arc Model) in the Matlab/Simulink environment using the ARC BLOCKSET. The importance of Mayr Arc Model and the choice of using this specific method of modeling the arc phenomenon have also been justified in this paper. Using MATLAB’s design circuit as a control observation, five cases have been studied to examine the faults and malfunctions that this current system can handle. It is successfully shown that the entire system is extremely vulnerable to even a small change in impedance of the system when the arc has been produced. The data suggests that the plasma channel would become even more unstable if the change in line resistance is something as small as 1000 ohms.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128524622","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}
N. H. Rahim, K. Y. Lau, S. Kamarudin, N. Muhamad, N. Mohamad, W. Rahman
{"title":"Effect of Nanofiller Calcination on Breakdown Performance of Silica Based Polyethylene Nanocomposites","authors":"N. H. Rahim, K. Y. Lau, S. Kamarudin, N. Muhamad, N. Mohamad, W. Rahman","doi":"10.1109/pecon.2018.8684159","DOIUrl":"https://doi.org/10.1109/pecon.2018.8684159","url":null,"abstract":"Polymer nanocomposites have become one of the main research studies in investigating the potential use of new dielectric materials especially in high voltage insulation. Many promising results, especially on the use of polyethylene nanocomposites as dielectric materials, have been reported in the literature. Significantly, the main factor that affects the dielectric performance of the materials was attributed to the interface between the host matrix and the nanofiller. This paper reports on an investigation into the AC and DC breakdown performance of unfilled and polyethylene nanocomposites containing silicon dioxide (SiO2) nanofillers at different loading levels (1 wt%, 4 wt%, and 8wt%). By using the Fourier transform infrared (FTIR) spectroscopy, the chemical structures of the materials were characterized. The dielectric permittivity of the samples was analyzed using dielectric spectroscopy. From the breakdown results, it showed that AC breakdown testing did not result in significant changes on the breakdown strength between uncalcined and calcined nanofillers. Meanwhile, for DC breakdown testing, introducing a small number of nanofillers could have a major impact on the DC breakdown strength. These results were correlated with the calcination process of nanofiller; the DC breakdown strength improved for calcined nanofiller compared to uncalcined nanofiller.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127742854","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}
A. Azmi, K. Y. Lau, N. A. Ahmad, Z. Abdul-Malek, W. Rahman
{"title":"Thermal and Breakdown Properties of Polypropylene Homopolymer, Copolymer, and Blend","authors":"A. Azmi, K. Y. Lau, N. A. Ahmad, Z. Abdul-Malek, W. Rahman","doi":"10.1109/PECON.2018.8684178","DOIUrl":"https://doi.org/10.1109/PECON.2018.8684178","url":null,"abstract":"Polypropylene has been widely used in high voltage insulation. This material has recently been regarded as to potentially compensate conventional limitations of XLPE such as being difficult to recycle and having significant space charge accumulation and poor thermal conductivity. Currently, there are various types of polypropylene produced in the market. Therefore, this research attempts to investigate the breakdown performance of several types of polypropylene, namely, polypropylene homopolymer, polypropylene impact copolymer, and the combination of both in 50:50 ratio. The thermal behaviors of the samples were characterized using scanning calorimetry (DSC). The thermal characterization demonstrates that all types of polypropylene have a similar melting temperature of about 162 °C. Besides that, the breakdown test reveals that polypropylene homopolymer has the highest DC breakdown of 278 kV/mm. Meanwhile, polypropylene impact copolymer has the lowest breakdown strength of 109 kV/mm and 239 kV/mm under the applied AC and DC fields, respectively.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126847415","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}
N. Amin, M. T. Ishak, J. Adnan, M. T. Jusoh, F. Ridzuan
{"title":"AC Breakdown Voltage and Dielectric Properties of Palm Oil As Insulating Liquid with The Presence of Copper Particles","authors":"N. Amin, M. T. Ishak, J. Adnan, M. T. Jusoh, F. Ridzuan","doi":"10.1109/PECON.2018.8684149","DOIUrl":"https://doi.org/10.1109/PECON.2018.8684149","url":null,"abstract":"The performance of liquid insulation in power transformers is susceptible to conductive particles. This paper presents the experimental study of the influence of copper particles of on the AC breakdown voltage and dielectric properties of palm insulating oil (PO). The PO used in this study is the Refined Bleached and Deodorized Olein type (RPDPO). The PO was contaminated with copper particles of various concentrations (0.1g, 0.5g and 1g). The AC breakdown voltage and dielectric properties such as dielectric dissipation factor, relative permittivity, and resistivity were measured in this experiment. Similar experiments were conducted for mineral oil (MO) for comparison purpose. From this study, the AC breakdown voltage of PO and MO reduces with the increase of copper particle concentration. The copper particles having less effect on the AC breakdown voltage of the PO than on MO. This is due to it has a higher viscosity. The relative permittivity and dissipation factor of PO and MO increase with increasing of copper particle concentration while the resistivity shows opposite relationship. The influence of copper particles on PO and MO is significant at higher temperatures than low temperatures. Similar results were observed for MO.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127799677","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}
H. Arifin, A. F. Abidin, Mohd Abdul Talib Mat Yusoh
{"title":"Real-Time Classification of Excessive Neutral to Ground Voltage (NTGV) Using Support Vector Machine (SVM)","authors":"H. Arifin, A. F. Abidin, Mohd Abdul Talib Mat Yusoh","doi":"10.1109/PECON.2018.8684180","DOIUrl":"https://doi.org/10.1109/PECON.2018.8684180","url":null,"abstract":"The excessive Neutral to ground voltage (NTGV) aggravates the operation of electrical system especially in communications, electrical appliance, and electronic data transfer. This corresponding problem contributes to the heating, negative sequence torque and the incorrect operation of the protection device. Thus, this study is focusing on developing the technique based on features extraction in real-time measurement in order to classify high NTGV. The objective is accomplished by developing the detection and classification system of high NTGV using S-transform, statistical analysis, and support vector machine (SVM). Further, the National Instrument (NI) voltage measurement module is utilized to acquire NTGV signal in real-time situation. In this case, the signal is generated using the AC Source Chroma Programming, where its signal is programmed according to the real data measurements in the distribution system. Next, the classification which will be done by using MATLAB software through Support Vector Machine (SVM) technique. This method is expected to enable the classification of different type of NTGV i.e harmonic, transient and combination of harmonic and transient. The result shows that the SVM technique produces high accuracy of classification, where its accuracy result is 95.8%.","PeriodicalId":278078,"journal":{"name":"2018 IEEE 7th International Conference on Power and Energy (PECon)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124596632","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}