2016 Electric Power Quality and Supply Reliability (PQ)最新文献

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Review of thermal analysis of permanent magnet assisted synchronous reluctance machines 永磁辅助同步磁阻电机热分析综述
2016 Electric Power Quality and Supply Reliability (PQ) Pub Date : 2016-08-01 DOI: 10.1109/PQ.2016.7724116
P. S. Ghahfarokhi, A. Kallaste, A. Belahcen, T. Vaimann, A. Rassõlkin
{"title":"Review of thermal analysis of permanent magnet assisted synchronous reluctance machines","authors":"P. S. Ghahfarokhi, A. Kallaste, A. Belahcen, T. Vaimann, A. Rassõlkin","doi":"10.1109/PQ.2016.7724116","DOIUrl":"https://doi.org/10.1109/PQ.2016.7724116","url":null,"abstract":"This paper presents a review of the losses and thermal analysis of permanent magnet assisted synchronous reluctance motors. Various types of solutions for critical parts of heat extractions and different empirical correlation for determination of each part are presented in details. Finally the experimental methods for determination of the critical parameters are presented. In this paper has tried to give advices how to calculate the critical parameter for constructing more accurate lumped parameter thermal network.","PeriodicalId":6470,"journal":{"name":"2016 Electric Power Quality and Supply Reliability (PQ)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72665465","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: 18
On possibility of power transformer operational reliability increase 电力变压器运行可靠性提高的可能性
2016 Electric Power Quality and Supply Reliability (PQ) Pub Date : 2016-08-01 DOI: 10.1109/PQ.2016.7724112
D. Kiesewetter, N. Zhuravleva, A. Reznik, Anna Tukacheva, E. Smirnova, A. Khripunov
{"title":"On possibility of power transformer operational reliability increase","authors":"D. Kiesewetter, N. Zhuravleva, A. Reznik, Anna Tukacheva, E. Smirnova, A. Khripunov","doi":"10.1109/PQ.2016.7724112","DOIUrl":"https://doi.org/10.1109/PQ.2016.7724112","url":null,"abstract":"The study of thermal aging of the components of the paper-impregnated insulation of power transformers was carried out. Electrical and mechanical characteristics of special produced paper with the addition of microcrystalline cellulose and bacterial cellulose were investigated. The maximum mechanical strength of various types of insulating paper in the process of thermal aging was measured. The grades of the paper with the largest sorption capacity, slows the aging process, were defined. The possibility of increasing heat resistance of transformer paper by modification of cellulose structure by biopolymers is shown.","PeriodicalId":6470,"journal":{"name":"2016 Electric Power Quality and Supply Reliability (PQ)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91221514","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
Oil wellbore electrical heating station with wind-driven power unit 带风力发电机组的油井筒电加热站
2016 Electric Power Quality and Supply Reliability (PQ) Pub Date : 2016-08-01 DOI: 10.1109/PQ.2016.7724120
A. Belsky, V. Dobush
{"title":"Oil wellbore electrical heating station with wind-driven power unit","authors":"A. Belsky, V. Dobush","doi":"10.1109/PQ.2016.7724120","DOIUrl":"https://doi.org/10.1109/PQ.2016.7724120","url":null,"abstract":"The article discusses an autonomous complex for electrical heating of oil wellbores using heating cable and powered by a wind-driven power unit. Simulation and computer modeling of the complex is performed. Operating curves for various operating conditions are obtained. An operating mode control algorithm is proposed for the complex ensuring efficient operation of the wind-driven power unit.","PeriodicalId":6470,"journal":{"name":"2016 Electric Power Quality and Supply Reliability (PQ)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79354302","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: 7
Improved droop control for effective load sharing and voltage regulation in DC microgrids 改进垂降控制,实现直流微电网的有效负荷分担和电压调节
2016 Electric Power Quality and Supply Reliability (PQ) Pub Date : 2016-08-01 DOI: 10.1109/PQ.2016.7724101
Gedeon Niyitegeka, Jaeho Choi, Yeonho Ok
{"title":"Improved droop control for effective load sharing and voltage regulation in DC microgrids","authors":"Gedeon Niyitegeka, Jaeho Choi, Yeonho Ok","doi":"10.1109/PQ.2016.7724101","DOIUrl":"https://doi.org/10.1109/PQ.2016.7724101","url":null,"abstract":"DC microgrids are becoming more prevalent at a household level due to renewable technologies integration such as photovoltaic and wind power; the electric power could be cheaper and more efficient. DC systems have also been more advantageous over AC systems due to their low conversion losses. However, the DC link voltage appears to be variable during operation due to different random effects. This paper focuses on DC voltage droop control to regulate the output voltage of converters and defines a power management scheme to improve the quality and stability of the whole system by keeping the bus voltage within acceptable limits. Therefore, the droop parameters are optimized to suppress the current circulation and voltage drop between converters. The maximum power must be tracked from renewable resources during different operating modes of the system. The ESS and the engine generator cover the power shortage after all available renewable energy is consumed. Keeping the state of charge of the ESS within allowed bands is a key role of control system. Load shedding or power generation curtailment should automatically take place if the maximum tolerable voltage variation is exceeded. PSiM based simulation results are presented to evaluate the performance of the proposed control measures.","PeriodicalId":6470,"journal":{"name":"2016 Electric Power Quality and Supply Reliability (PQ)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88467424","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
Electrical resonance instability study in wind power plants 风力发电厂的电共振不稳定性研究
2016 Electric Power Quality and Supply Reliability (PQ) Pub Date : 2016-08-01 DOI: 10.1109/PQ.2016.7724103
L. Sainz, J. J. Mesas, L. Monjo, J. Pedra, M. Cheah‐Mane
{"title":"Electrical resonance instability study in wind power plants","authors":"L. Sainz, J. J. Mesas, L. Monjo, J. Pedra, M. Cheah‐Mane","doi":"10.1109/PQ.2016.7724103","DOIUrl":"https://doi.org/10.1109/PQ.2016.7724103","url":null,"abstract":"Wind power plant stability can be affected by the interaction between the wind turbine and the resonances in the collector grid. This paper presents an electrical resonance instability study applied to wind power plants. The influence of feedforward low pass filter bandwidth and converter filter inductance on wind power plant stability is analyzed with examples. An impedance-based representation of the wind power plant is used to identify the resonances and analyze stability problems. PSCAD/EMTDC time-domain simulations are also shown to validate the stability study.","PeriodicalId":6470,"journal":{"name":"2016 Electric Power Quality and Supply Reliability (PQ)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75200198","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
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