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2013 Australasian Universities Power Engineering Conference (AUPEC)最新文献

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Fault current contribution from photovoltaic systems in residential power networks 住宅电网中光伏系统的故障电流贡献
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2014-04-14 DOI: 10.1109/AUPEC.2013.6725450
S. Bhattacharya, T. Saha, M. J. Hossain
{"title":"Fault current contribution from photovoltaic systems in residential power networks","authors":"S. Bhattacharya, T. Saha, M. J. Hossain","doi":"10.1109/AUPEC.2013.6725450","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725450","url":null,"abstract":"This paper presents a detailed analysis for determining the impact of adding single phase photovoltaic (PV) systems in residential power distribution networks. This study highlights the issues arising due to the increase in fault levels in the network caused by the contribution from PV generators. A typical power distribution network for a suburban area has been modeled in PSCAD and the changes in fault current magnitude with the incremental addition of PV system has been studied. From this analysis it is found that PV generators can contribute fault current of considerable magnitude and thereby has an appreciable impact on the protection system if the PV penetration level is high.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129240456","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}
引用次数: 16
Extending SWER line capacity 扩展应答线路容量
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2013-10-01 DOI: 10.1109/AUPEC.2013.6725427
A. Helwig, T. Ahfock
{"title":"Extending SWER line capacity","authors":"A. Helwig, T. Ahfock","doi":"10.1109/AUPEC.2013.6725427","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725427","url":null,"abstract":"SWER lines, with increasing load demand over time, begin to experience voltage sags during peak periods most often in little over half their asset life. Voltage sags are due most often to the lossy nature of SWER networks, and in lines over 100km, there is reserve thermal capacity to allow for use of LV customer voltage regulators. This paper provides methodologies as to how far toward the theoretical maximum power transfer point this can occur, as well as design considerations for the LV voltage regulators.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116139032","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}
引用次数: 5
Investigation of near flicker source impact on the dynamic performance of FCWECS 近闪烁源对FCWECS动态性能影响的研究
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2013-09-29 DOI: 10.1109/AUPEC.2013.6725397
A. Yunus, Y. Alharbi, A. A. Siada, M. Masoum
{"title":"Investigation of near flicker source impact on the dynamic performance of FCWECS","authors":"A. Yunus, Y. Alharbi, A. A. Siada, M. Masoum","doi":"10.1109/AUPEC.2013.6725397","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725397","url":null,"abstract":"The number of full converter wind energy conversion system (FCWECS) connected to existing electricity grids has significantly increased worldwide during the last two decades. One of the common power quality issues associated with wind turbine generator (WTG) is the voltage flicker which can be caused due to wind gust. It is pivotal for the existing or the new construction of the WTG to comply with the power quality standards. Although, with the advance in WTG technology and control systems, the flicker due to wind speed fluctuation can be mitigated, flicker can still be caused as a result of load pulsation such as arc furnaces, resistive welding machines and compressors. In this paper, the near flicker source impact on the connected WTG performance is investigated and the compliance of the WTG with the recent grid codes under such disturbance is highlighted.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122080135","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}
引用次数: 1
Reliability of active distribution networks with PV based strategic micro-grids 基于光伏的战略微电网有源配电网可靠性研究
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2013-09-01 DOI: 10.1109/AUPEC.2013.6725483
Zulu Esau, D. Jayaweera
{"title":"Reliability of active distribution networks with PV based strategic micro-grids","authors":"Zulu Esau, D. Jayaweera","doi":"10.1109/AUPEC.2013.6725483","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725483","url":null,"abstract":"The paper presents a new mathematical model for PV (Photo Voltaic) based micro grids and assesses the reliability of an active distribution network with high penetration of PV through strategic micro grids. The key benefit of the model is its flexibility to adapt state transitions of components associated in a PV micro grid. The model works for centralized and decentralized deployment of PV micro grids and captures detailed effects of insolation variations. Case studies are performed incorporating a model of an active distribution network. The results suggest that reliability performance of an active distribution network can be impacted significantly beyond a penetration level of PV with the increased loading of the network.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124954448","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}
引用次数: 4
Economic analysis of wind power development in coastal regions of Tasmania 塔斯马尼亚沿海地区风力发电发展的经济分析
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2013-09-01 DOI: 10.1109/AUPEC.2013.6725421
A. Zahedi
{"title":"Economic analysis of wind power development in coastal regions of Tasmania","authors":"A. Zahedi","doi":"10.1109/AUPEC.2013.6725421","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725421","url":null,"abstract":"This paper presents the results of a study conducted to develop a novel approach to optimize a wind farm for an improved economic analysis of wind energy production. This study performs an extensive simulation to compare the energy production with different turbine technologies under varying wind speed scenarios. The simulation of this study can be used for any location in the world, but focus of this paper is the coastal regions of Tasmania using the location's 10-year average wind speed. The proposed approach performs a financial feasibility and profitability study and, consequently, improves the gain of the wind energy from wind farm.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125438143","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}
引用次数: 1
A network controlled load management scheme for domestic charging of electric vehicles 一种电动汽车国内充电网络控制负荷管理方案
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2013-09-01 DOI: 10.1109/AUPEC.2013.6725361
Reduan H. Khan, S. Studli, J. Khan
{"title":"A network controlled load management scheme for domestic charging of electric vehicles","authors":"Reduan H. Khan, S. Studli, J. Khan","doi":"10.1109/AUPEC.2013.6725361","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725361","url":null,"abstract":"This paper proposes a end-to-end load management scheme for domestic charging of electric vehicles (EVs) based on the bidirectional communication capabilities of the smart grid. In particular, the paper considers the case of using EV fleets for night-time valley-filling of the daily load curve. The novel concept of discontinuous EV charging based on small energy bursts is introduced that utilizes the benefit of the statistical multiplexing to accommodate higher number of vehicles and to provide differentiated energy supply against a variable energy-budget within a pre-defined time. The paper also suggests two energy scheduling algorithms to ensure priority and/or fairness among the contending vehicles. A wide-area smart grid communications network based on WiMAX technology has been used as a proof of concept for this study. Simulations are conducted using an integrated OPNET model to jointly examine the performances of the energy scheduling algorithms and the communications network for a large-scale EV charging system. The results show that the proposed scheme can efficiently support the EV charging load in an equitable manner with a very low communications overhead.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"461 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123938508","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}
引用次数: 6
Analysis of incident light angles on nano-grating structure for minimizing reflection losses in GaAs solar cells 最小化反射损耗的纳米光栅结构的入射光角度分析
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2013-09-01 DOI: 10.1109/AUPEC.2013.6725384
N. Das, K. Charoenpitaks, S. Islam
{"title":"Analysis of incident light angles on nano-grating structure for minimizing reflection losses in GaAs solar cells","authors":"N. Das, K. Charoenpitaks, S. Islam","doi":"10.1109/AUPEC.2013.6725384","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725384","url":null,"abstract":"Subwavelength grating (SWG) structures make an excellent alternative antireflective (AR) coating due to its capacity to reduce the reflection losses in GaAs solar cells. The SWG structures allow the gradual change in refractive index that confirms an excellent AR coating and the light trapping properties when compare with planar thin film structures. Finite-difference time domain (FDTD) method is used to simulate the reflection losses of the SWG structure in GaAs solar cells. The FDTD simulation results show that the slightly change of incident angle affect the reflection losses of all nano-grating structure. The simulation results also confirmed that the reflection loss of nano-grating structure maintained optimum within ~±5° of incident angle tolerance for the grating height over 300-nm for minimizing the reflection losses in GaAs solar cells.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116271505","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}
引用次数: 4
A novel visualisation technique for dissolved gas analysis datasets 一种用于溶解气体分析数据集的新型可视化技术
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2013-09-01 DOI: 10.1109/AUPEC.2013.6725453
Gareth Lee, S. Hettiwatte, H. Fonseka
{"title":"A novel visualisation technique for dissolved gas analysis datasets","authors":"Gareth Lee, S. Hettiwatte, H. Fonseka","doi":"10.1109/AUPEC.2013.6725453","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725453","url":null,"abstract":"Dissolved gas analysis is the most widely used diagnostic test in power transformers. There are established methods used in industry for interpreting DGA results. Among these are the IEEE Key Gas Method, Rogers' Ratios and the Duval Triangle. However, collectively these methods can lead to conflicting results or unclassifiable measurements. This paper presents a visualization technique for interpreting DGA results to mitigate these effects, based on Kernel Principal Component Analysis. DGA measurements from more than 200 power transformers are used to validate the approach.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"80 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113958527","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}
引用次数: 1
Security enhancement with nodal criticality based integration of PHEV micro grids 基于节点临界的插电式混合动力微电网集成安全性增强
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2013-09-01 DOI: 10.1109/AUPEC.2013.6725365
D. Jayaweera, S. Islam
{"title":"Security enhancement with nodal criticality based integration of PHEV micro grids","authors":"D. Jayaweera, S. Islam","doi":"10.1109/AUPEC.2013.6725365","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725365","url":null,"abstract":"Modern distribution networks are increasingly vulnerable to disturbances and improving the security of supply to customers are complex and challenging with the traditional approach. This paper presents a new approach to enhance the security of power supply in an active distribution network by integrating PHEV (Plug-in Hybrid Electric Vehicle) based micro grids on the basis of the nodal criticality. The nodal criticality is assessed by integrating operational uncertainties of events into samples of Monte Carlo simulation and classifying load interruptions on the basis of their magnitudes and frequencies. Criticality of the system stress that results nodal loads shedding is classified into arrays of clusters based on the magnitudes of interrupted loads at samples. The critical clusters that represent largest disturbances to the respective nodal loads are served with PHEV micro grids. Case studies are performed, and the results suggest that the security of distribution networks can be significantly improved with the proposed approach.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124098389","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}
引用次数: 0
Power Quality Conditioner for Microgrid 微电网电能质量调节器
2013 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2013-09-01 DOI: 10.1109/AUPEC.2013.6725396
C. N. Bhende, Akhtar Kalam
{"title":"Power Quality Conditioner for Microgrid","authors":"C. N. Bhende, Akhtar Kalam","doi":"10.1109/AUPEC.2013.6725396","DOIUrl":"https://doi.org/10.1109/AUPEC.2013.6725396","url":null,"abstract":"In this paper, a power quality (PQ) conditioner for microgrid is presented. The main inverter which is associated with distribution generation (DG) and distribution static shunt compensator (DSTATCOM) connected at point of common coupling (PCC) form a PQ conditioner. PQ conditioner of microgrid may be referred as Microgrid Power Quality Conditioner (MPQC). The unbalanced and non-linear load of microgrid is responsible for the flow of unwanted currents through transmission line between microgrid and grid. Hence, the aim of MPQC is to eliminate harmonics from line currents and make them balanced. For this purpose, novel control strategies for MPQC are proposed. Moreover, DSTATCOM supplies the reactive power required by the load locally and hence, neither inverter nor grid supplies the reactive power. Extensive simulation results using MATLAB/SIMULINK established that the performance of the controllers is quite satisfactory for the elimination of PQ problems.","PeriodicalId":121040,"journal":{"name":"2013 Australasian Universities Power Engineering Conference (AUPEC)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126323513","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}
引用次数: 6
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