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2008 Power Quality and Supply Reliability Conference最新文献

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Investigation of harmonic effect in Turkey’s iron - steel industry 土耳其钢铁工业谐波效应的研究
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653733
B. Kekezoğlu, C. Kocatepe, R. Yumurtacı, O. Arikan, M. Baysal, A. Bozkurt, Y. Akkaya, E. Ozdemirci
{"title":"Investigation of harmonic effect in Turkey’s iron - steel industry","authors":"B. Kekezoğlu, C. Kocatepe, R. Yumurtacı, O. Arikan, M. Baysal, A. Bozkurt, Y. Akkaya, E. Ozdemirci","doi":"10.1109/PQ.2008.4653733","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653733","url":null,"abstract":"Power quality is a considerable concern for power systems. The voltage-current characteristics of iron and steel industries are unsteady and especially in these industries nonlinear loads cause power quality problems. High power steel plants produce three-phase unbalanced operation, flicker and harmonics. This paper presents field measurement results of several steel industries in Turkish Electrical Power System. Also, the effects of these industries on power quality disturbances are investigated. Plant measurements are taken by members of the National Power Quality Project in Turkey. This project is supported by The Scientific and Technological Research Council of Turkey with reference number of 105G129.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127174048","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
Influence of the ground impedance on the earth fault current calculation in lengthy electrical networks containing harmonic sources 含谐波源长电网中接地阻抗对接地故障电流计算的影响
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653753
A. Novitskiy, H. Schau
{"title":"Influence of the ground impedance on the earth fault current calculation in lengthy electrical networks containing harmonic sources","authors":"A. Novitskiy, H. Schau","doi":"10.1109/PQ.2008.4653753","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653753","url":null,"abstract":"The influence of the earth impedance on the harmonic earth fault current in a lengthy 110 kV supply network (total length over 7700 km, galvanic connected, neutral earthed by Petersen coils) will be shown in the paper. It will be pointed out that the earth impedance can be correctly considered by means of the implementation of the harmonic network equivalent impedance into the computation model. A practical approach of harmonic network impedance determination on the base of long-time current and voltage measurements at the network node is described in the paper.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122349293","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
Reactive power compensation for spot welding machine using thyristor switched capacitor 晶闸管开关电容点焊机无功补偿
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653768
A. Kallaste, L. Kutt, V. Bolgov, K. Janson
{"title":"Reactive power compensation for spot welding machine using thyristor switched capacitor","authors":"A. Kallaste, L. Kutt, V. Bolgov, K. Janson","doi":"10.1109/PQ.2008.4653768","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653768","url":null,"abstract":"High-power industrial spot-welding machines make use of transformers that have very high reactive power consumption. Simple reactive power compensation schemes cannot be used however, because of the cyclic nature of the spot welding transformer operating. This paper describes the development of a simple reactive power compensator solution for the spot-welding machines. Focus is also put on the transformer saturation and current transients that can emerge from deployment of such reactive power compensation methods.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131746775","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
Decoupling IPD controller design for three-phase DC/AC inverter 三相DC/AC逆变器的解耦IPD控制器设计
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653740
Jinmok Lee, G. Park, Jaeho Choi
{"title":"Decoupling IPD controller design for three-phase DC/AC inverter","authors":"Jinmok Lee, G. Park, Jaeho Choi","doi":"10.1109/PQ.2008.4653740","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653740","url":null,"abstract":"This paper presents a decoupling IPD voltage control for three-phase DC/AC inverter. Though most of three-phase inverter system for UPS or stand alone renewable energy system have been analyzed by using DQ model and controlled with IPD controller. For the simplification of this DQ model coupled each other, DQ decoupling technique is proposed firstly and so the MIMO system can be changed to SISO system. Secondary, the CRA based design procedure for IPD controller is presented and it satisfies the specified time response and overshoot of the controller, of which parameters are determined practically by trial and error method. Finally, the performance of this proposed algorithm is verified through PSiM simulation.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127173308","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
Evaluation of a power quality monitoring system 电能质量监测系统的评估
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653736
W. Hipp, H. Renner
{"title":"Evaluation of a power quality monitoring system","authors":"W. Hipp, H. Renner","doi":"10.1109/PQ.2008.4653736","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653736","url":null,"abstract":"Since the liberalization of the electrical power market in most EU countries regulation authorities have been founded to observe and regulate the quality of the delivered power. In order to meet the requirements resulting from this situation, grid providers have to be able to prove that European Standards for power quality (EN 50160) are obeyed in each consumer connection point and product liability laws are fulfilled. The purpose of this paper is to show how diverse disturbing sources spread out over the whole MV- and HV-grid. Furthermore the measured data of an existing power quality monitoring system consisting of about 200 measuring points inside of about 40 MV-grids which are fed by 2 HV-grids will be analyzed in order to evaluate the best positions for power quality measuring stations.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134408527","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
Strategies to handle unsymmetrical grid faults by voltage source inverters 电压源逆变器处理电网不对称故障的策略
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653739
B. Eggert
{"title":"Strategies to handle unsymmetrical grid faults by voltage source inverters","authors":"B. Eggert","doi":"10.1109/PQ.2008.4653739","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653739","url":null,"abstract":"Control strategies are introduced for voltage source inverters to handle unsymmetrical grid faults.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121530598","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 flow in typical series-parallel hybrid filters topologies 典型串并联混合滤波器拓扑结构中的功率流
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653765
R. Strzelecki, G. Benysek
{"title":"Power flow in typical series-parallel hybrid filters topologies","authors":"R. Strzelecki, G. Benysek","doi":"10.1109/PQ.2008.4653765","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653765","url":null,"abstract":"In this paper, analyzed hybrid UPQC systems consist of the series and parallel APF with added resonance filter LC. The authors focus on analysis of the power flow between active filters at different configurations. This problem is significant, because it makes possible to find optimum configuration of the hybrid UPFC and power of the additional sources elements. Presented systems differ from each other with respect to flow and values of the additional power sources.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130828622","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
Design of electrical infrastructure at container terminal and ’net metering’ 货柜码头电力基础设施设计及“净计量”
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653734
Thanh Tran, S. Nahavandi, Robert Reid
{"title":"Design of electrical infrastructure at container terminal and ’net metering’","authors":"Thanh Tran, S. Nahavandi, Robert Reid","doi":"10.1109/PQ.2008.4653734","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653734","url":null,"abstract":"Net metering is generally a consumer-based incentive for renewable sources such as wind or solar power systems also referred to as dasiacogenerationdasia. It is still a grey area for container terminals with large electric machines, such as quay cranes, automatic stacking cranes, that can operate in the regenerative mode and export electric energy to the grid. With actual measured electrical data presented for discussion, this paper provides information for the readers to provide a better understanding of their access to net metering, ultilizing their electrical equipment capabilities and be informed for their next negotiation with the power supply company.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"298 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132798827","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
Evaluation of negative effect of distributed generation 分布式发电的负面影响评价
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653749
J. Orságová, P. Toman
{"title":"Evaluation of negative effect of distributed generation","authors":"J. Orságová, P. Toman","doi":"10.1109/PQ.2008.4653749","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653749","url":null,"abstract":"The paper deals with the problem of network voltage distortion due to harmonics injected into the network by wind power plant generators. The existing methodology for assessing the impact of wind power plants on a distribution network offers different approaches to analyzing the level of generated harmonics. The variability of the approach is given by the extent of the simplification of the mathematical model applied to the calculation of the propagation of harmonics. The aim of the paper is to point out possible differences stemming from the application of the above-mentioned approaches and erroneous conclusions to which these differences can lead.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134023276","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: 8
Analysis of power consumption and losses in relation to supply voltage levels 分析与电源电压水平相关的功耗和损耗
2008 Power Quality and Supply Reliability Conference Pub Date : 2008-10-17 DOI: 10.1109/PQ.2008.4653732
T. Vinnal, L. Kutt, H. Kalda
{"title":"Analysis of power consumption and losses in relation to supply voltage levels","authors":"T. Vinnal, L. Kutt, H. Kalda","doi":"10.1109/PQ.2008.4653732","DOIUrl":"https://doi.org/10.1109/PQ.2008.4653732","url":null,"abstract":"This paper is focused on the effects of active and reactive power consumption and losses depending on voltage level variations around the normal (rated) voltage level. Supply voltage variations from rated voltage affect both power consumption and losses in the network. Focus is put on load response to the voltage change, while motor-type and mixed residential load is observed. Relations between voltage variation and load power consumption are suggested. Comparisons based on literature as well as classical theory and on-site measurements are presented.","PeriodicalId":429968,"journal":{"name":"2008 Power Quality and Supply Reliability Conference","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128612198","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
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