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2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)最新文献

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Partial discharge features and parameters characterization under typical defect geometries in oil-paper insulation: Considering the aging states 油纸绝缘典型缺陷几何下局部放电特征及参数表征:考虑老化状态
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7381016
Yuan Li, Guanjun Zhang, Ming-Xiao Zhu, Yan-hui Wei, H. Mu, Jun-bo Deng, Bin Wei
{"title":"Partial discharge features and parameters characterization under typical defect geometries in oil-paper insulation: Considering the aging states","authors":"Yuan Li, Guanjun Zhang, Ming-Xiao Zhu, Yan-hui Wei, H. Mu, Jun-bo Deng, Bin Wei","doi":"10.1109/APPEEC.2015.7381016","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7381016","url":null,"abstract":"The oil-paper insulation has been widely used in large power equipment, and thermal and electrical stresses are the two main origins causing the deterioration and failure of oil-paper insulation system. In this paper, accelerated aging experiments of oil impregnated paper are conducted and partial discharge (PD) measurement are performed under typical defect models, i.e. protrusion, surface discharge and cavity inside the oil-immersed paper. The PD experimental results of three typical defects indicate that discharges initiated from a protrusion in oil have the similarity with that in air but with a limited apparent charge. The surface discharge are much more disruptive for oil-paper insulation. The intervals between consecutive discharges has the good tendency of decrease in the whole discharge events.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125660083","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
Coherency feature extraction based on DFT-based continuous wavelet transform 基于dft连续小波变换的相干特征提取
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7380916
Yifan Zhou, Wei Hu, Xianzhuang Liu, Q. Zhou, Hongqiao Yu, Qian Pu
{"title":"Coherency feature extraction based on DFT-based continuous wavelet transform","authors":"Yifan Zhou, Wei Hu, Xianzhuang Liu, Q. Zhou, Hongqiao Yu, Qian Pu","doi":"10.1109/APPEEC.2015.7380916","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7380916","url":null,"abstract":"Coherency identification is an important issue for transient stability analysis. In this paper, a coherency feature extraction method is proposed based on DFT-based continuous wavelet transform (CWT). By analyzing several typical situations of power angle swing (including incremental oscillated, damping oscillated and swing apart) using DFT-based CWT, it is illustrated that the scale and energy percentage of main components of the original signal can reveal the similarity and difference between power angle curves of the generators. Thus transient process of power angle can be described by a few indexes instead of a series of temporal data. Finally, case study in New England 10-machine 39-bus system indicates that the proposed coherency feature is valid for coherency identification in different fault cases.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126019888","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
Harmonic mitigation in an islanded microgrid using a DSTATCOM 使用DSTATCOM的孤岛微电网谐波缓解
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7380970
M. Goyal, B. John, A. Ghosh
{"title":"Harmonic mitigation in an islanded microgrid using a DSTATCOM","authors":"M. Goyal, B. John, A. Ghosh","doi":"10.1109/APPEEC.2015.7380970","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7380970","url":null,"abstract":"The degree of proliferation of Distributed Energy Resources (DERs) and application of power electronics appliances are in demand. A microgrid can contain variety of sources such as diesel generator, wind turbine, PV arrays, micro-turbine and fuel cell. Usually these sources share power where the system frequency changes depending on the power supplied. On the other hand, the microgrid can contain harmonic loads that can affect the performance of the synchronous generators. These deleterious effects of distorting loads can be corrected using a distribution static compensator (DSTATCOM). In this paper, an isochronous control based droop strategy is employed that forces the microgrid to operate at the base frequency of 50 Hz. Therefore the DSTATCOM can be operated at 50 Hz. A closed-loop space vector pulse width modulation (SVPWM) technique is used for the DSTATCOM control. The scheme is validated through the extensive PSCAD/EMTDC simulation studies.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"11 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124841185","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: 9
Dielectric performance of silicone oil-paper composite insulation system under thermal aging 热老化条件下硅油-纸复合绝缘系统的介电性能
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7380940
Li-Shuang Cao, B. Xiang, Wen-Dong Li, Yan-hui Wei, Jun-bo Deng, Zhiyuan Liu, S. Yanabu, M. Dong, Guanjun Zhang
{"title":"Dielectric performance of silicone oil-paper composite insulation system under thermal aging","authors":"Li-Shuang Cao, B. Xiang, Wen-Dong Li, Yan-hui Wei, Jun-bo Deng, Zhiyuan Liu, S. Yanabu, M. Dong, Guanjun Zhang","doi":"10.1109/APPEEC.2015.7380940","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7380940","url":null,"abstract":"Silicone oil is a promising alternative insulating liquid especially for the sites where fireproofing and environment protection must be considered. In this paper, the chemical and dielectric performance of silicone oil-paper composite insulation system under thermal aging is discussed. Two kinds of oil-paper systems are tested: mineral oil and silicone oil (Shin-Etsu Chemical KF-96-20 Lower viscosity fluid). In this study, mineral oil is used as the comparison sample. The accelerated aging process is at 140 oC in nitrogen. Aging samples with the aging duration of 250 hours, 500 hours and 750 hours and 1000 hours are tested. Experimental results indicate that the silicone oil has much lower acidity content and dielectric loss compared to the mineral oil. New mineral has a little higher AC breakdown voltage compared to silicone oil. For both silicone oil and mineral oil, with the increase of impurities such as water and solid particles during the aging process, the AC breakdown voltage decreases slightly. Acidic materials generated during aging process have little influence on the AC breakdown voltage. Different from the mineral oil whose impulse breakdown voltage decreases significantly with the increase of aging time, however, the silicone oil's negative impulse breakdown voltage of different aging time almost keeps the same.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121936703","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 based planning methodology for feeder automation 基于可靠性的馈线自动化规划方法
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7381032
T. B. Mavuso, A. Wessels, J. Pretorius
{"title":"Reliability based planning methodology for feeder automation","authors":"T. B. Mavuso, A. Wessels, J. Pretorius","doi":"10.1109/APPEEC.2015.7381032","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7381032","url":null,"abstract":"One of the most used measures for improving service reliability is distribution automation (DA). The DA technology has been widely used by different utilities for quite some time. Its applicability on the Eskom distribution network is an option but it is still in the research and development stage. This paper proposes a method for a network planning engineer to motivate the use of feeder automation (FA). This methodology will serve as a guideline to a network planner interested in using FA as an alternative or additional solution to improve the reliability of a feeder. The defined method is based on literature and existing research on FA. Furthermore the methodology is analyzed using the Eskom case study. A comparison is made by identifying a pattern of steps or methods followed in planning for Magaliesburg-Hekpoort feasibility project and comparing this method with the proposed methodology.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121636933","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: 2
Evaluation of performance of distance relays in presence of series compensators 有串联补偿器时距离继电器的性能评价
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7380958
A. Gheitasi
{"title":"Evaluation of performance of distance relays in presence of series compensators","authors":"A. Gheitasi","doi":"10.1109/APPEEC.2015.7380958","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7380958","url":null,"abstract":"This paper investigates the ability of impedance based fault locating systems in series compensated lines. Behaviour of Series capacitors and their built-in protection system has been studied to analyse the dynamics of the system during short circuit faults. This paper also aims at investigating attempt to provide a framework to facilitate a reliable decision making in the real time situation by amending conventional fault locating algorithms. The algorithm is simulated using MATLAB Simulink for a 220kV transmission line.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130200117","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
Residential electricity costs — Assessment of queensland electricity tariffs for solar households 住宅用电成本-评估昆士兰州太阳能家庭电费
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7381038
M. Senadeera, W. Miller
{"title":"Residential electricity costs — Assessment of queensland electricity tariffs for solar households","authors":"M. Senadeera, W. Miller","doi":"10.1109/APPEEC.2015.7381038","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7381038","url":null,"abstract":"Climate change is likely to impact on already rising household electricity costs. A need exists to better understand current consumption and generation patterns and how they impact economically on a household's electricity bill in Queensland. This paper assesses the impact of the current residential household tariffs and how, depending on the electrical system configuration of the household - namely the existence of a PV system with or without a small battery unit - impacts which tariffs are financially optimal for a homeowner. This is conducted by applying the study to real data from a South East Queensland case study household and assessing the costs to the household under four scenarios with varying tariff and cost structures and energy system configurations.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133836252","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: 3
The dynamic rating system for transmission lines based on thermal circuit model 基于热回路模型的输电线路动态额定系统
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7381061
Yuehao Yan, Hui Lin, Weizheng Zhang, Zhengrong Li, Rui Tang
{"title":"The dynamic rating system for transmission lines based on thermal circuit model","authors":"Yuehao Yan, Hui Lin, Weizheng Zhang, Zhengrong Li, Rui Tang","doi":"10.1109/APPEEC.2015.7381061","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7381061","url":null,"abstract":"Developing dynamic rating system can raise short- term transmission capacity of transmission lines effectively and safely to satisfy the demands for power supply under emergency. The dynamic rating model based on thermal circuit is derived through the foundation of steady state model and transient state model of thermal circuit. The overhead transmission line temperature at any time is obtained through the first-order thermal circuit model. The field test data of dynamic rating system is analyzed. The effectiveness of the proposed model and dynamic rating system is verified by the simulation test and field test.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133796395","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
Comparison between DC and AC microgrid systems considering ratio of DC load 考虑直流负荷比例的直流与交流微网系统比较
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7380918
K. Shimomachi, R. Hara, H. Kita
{"title":"Comparison between DC and AC microgrid systems considering ratio of DC load","authors":"K. Shimomachi, R. Hara, H. Kita","doi":"10.1109/APPEEC.2015.7380918","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7380918","url":null,"abstract":"Due to recent growth of small-scaled distributed generators such as PV in demand-side, the local demand and supply system that called MG, becomes real possibility. MGs would be equipped with energy storage systems such as a battery. Since PVs and batteries primitively work with DC, advantages of DC supply system over AC supply might be emphasized. This paper proposes an algorithm for optimal design of MG including the selection of AC or DC supply system. This paper also qualitatively discusses the advantage of MG with DC supply, named DCMG through case studies for residential customer assuming four types of home appliances; constant load such as a refrigerator, lighting, air conditioner and the others. The results of case studies show the economic advantage of DCMG over ACMG.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133730974","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: 11
Optimal integration of microgrid for distribution network 配电网微网优化集成
2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2015-11-01 DOI: 10.1109/APPEEC.2015.7381011
Pan Hu, Hongkun Chen, Cong Chen, Xin Liu
{"title":"Optimal integration of microgrid for distribution network","authors":"Pan Hu, Hongkun Chen, Cong Chen, Xin Liu","doi":"10.1109/APPEEC.2015.7381011","DOIUrl":"https://doi.org/10.1109/APPEEC.2015.7381011","url":null,"abstract":"The proper integration of Microgrid determines the safe, efficient and economic operation of distribution network. From the perspective of the benefits of distribution network, this article illustrates the detailed process of the optimal integration of Microgrid. Firstly, select the candidate set taking consideration of practical engineering aspects. In order to reduce the forecast error, the probabilistic power fluctuation model of Microgrid is derived considering the mutual behavior of distribution generation and load. Then establishes the evaluation system with the comprehensive index of power loss rate, voltage deviation and static voltage stability. Fuzzy Analytic Hierarchy Process (FAHP) is adopted to optimize relative weights of evaluation indicators and the decision- making model of Microgrid integration is established. In order to test the validity of the proposed theory, this article simulates integrated impact under IEEE 33-bus system. The results show the efficiency and suitability of the proposed strategy.","PeriodicalId":439089,"journal":{"name":"2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130115108","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
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