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2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)最新文献

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IEC flickermeter response to interharmonic pollution IEC闪变计对谐波污染的响应
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409403
D. Gallo, C. Landi, R. Langella, A. Testa
{"title":"IEC flickermeter response to interharmonic pollution","authors":"D. Gallo, C. Landi, R. Langella, A. Testa","doi":"10.1109/ICHQP.2004.1409403","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409403","url":null,"abstract":"The paper discusses the response of flickermeters to interharmonic voltage pollution from theoretical and experimental points of view. Light flicker can be caused by interharmonics because these components are able to introduce fluctuations both in rms and peak value of supply voltage. The IEC standard flickermeter was deigned, for historical reasons, only with reference to amplitude voltage modulation that is the first source of light flicker identified. Nevertheless, the instrument was expected to properly work and measure also the effects of interharmonics. The paper presents a test system able to perform the advanced calibration and performance verification of flickermeter also with reference to interharmonic pollution. The experimental results obtained testing a commercial instrument are shown and discussed.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116725930","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: 41
Experimental measurements of energy consumption changes in a wye distribution system serving multiple computer loads as various harmonic solutions are applied 本文应用实验方法测量了为多个计算机负载服务的配电系统在不同谐波解下的能耗变化
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409370
J. K. Piel, M. Z. Lowenstein
{"title":"Experimental measurements of energy consumption changes in a wye distribution system serving multiple computer loads as various harmonic solutions are applied","authors":"J. K. Piel, M. Z. Lowenstein","doi":"10.1109/ICHQP.2004.1409370","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409370","url":null,"abstract":"Most older facilities' electrical systems were never designed to handle the harmonic stresses of modern electronic loads. To address these issues, many engineers and facility managers are forced to select from several harmonic solutions. In evaluating these various solutions, considerations must include effectiveness, installation costs, and total cost of ownership. Typically, total cost of ownership will outweigh installation costs. The largest component in total cost of ownership is energy consumption. This work will report results obtained measuring changes in energy consumption brought about by varying distribution system elements for distribution systems supplying single-phase nonlinear loads. The elements that were incorporated in the study include: (1) Various transformer types and impedances including (a) Standard (conventional), (b) K-13, (c) Zig-Zag; (2) Various distribution conductor configurations and lengths; (3) A Harmonic suppression system. Data were collected utilizing a laboratory 15 kVA distribution system. System energy consumption measurements and transformer secondary harmonic measurements provided data to enable evaluation of the various system configurations being studied.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116213133","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
Harmonic filtering and power factor improvement on illumination systems with metallic halide lamps-case study 金属卤化物灯照明系统的谐波滤波与功率因数改善-个案研究
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409346
G. Dias, M. Telló, F. Sonalio, F.K. Behle, B. Santana, D. Casa
{"title":"Harmonic filtering and power factor improvement on illumination systems with metallic halide lamps-case study","authors":"G. Dias, M. Telló, F. Sonalio, F.K. Behle, B. Santana, D. Casa","doi":"10.1109/ICHQP.2004.1409346","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409346","url":null,"abstract":"The aim of This work is to present a case study in an industrial facility, specifically, in metallic halide lamp systems. Those systems are composed by capacitors, reactors, igniters and lamps installed on the roof of the building. Due to the heat produced by harmonics, capacitors, reactors, igniters fall from the rooftop in flames and the lamps burn. The main issue recognized on the installation was the harmonic problem. To solve this problem a passive harmonic filter was implemented, improving reactive compensation.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129698953","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
Calculation of voltage dips in meshed grids 网格电压降的计算
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409432
H. Renner, M. Sakulin
{"title":"Calculation of voltage dips in meshed grids","authors":"H. Renner, M. Sakulin","doi":"10.1109/ICHQP.2004.1409432","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409432","url":null,"abstract":"Knowing the network parameters and the failure statistics of a network, the number of dips per year and the distributions of remaining voltages and dip durations can be estimated. Two approaches have been chosen by the authors: using a Monte-Carlo-method, the remaining voltages for random failure locations in the network are calculated. The simulation can be done for an arbitrary number of years, the number of dips per year is taken from the fault statistics. Using the second method, the calculation of the remaining voltage is performed for failures in every node of the network. The results are weighted according to the failure probability of each node. The dip duration is derived from the network's protection system. These methods have been applied to a real network. The results are compared with a 2-years-measurement in the network. Furthermore the rating of an appropriate dynamic voltage restorer is discussed.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129268486","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
A smart measurement system for reconstructing voltage rms value over long time interval 一种用于长时间间隔电压均方根值重建的智能测量系统
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409406
L. Peretto, R. Tinarelli
{"title":"A smart measurement system for reconstructing voltage rms value over long time interval","authors":"L. Peretto, R. Tinarelli","doi":"10.1109/ICHQP.2004.1409406","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409406","url":null,"abstract":"Determining the trend over long time interval of parameters characterizing electrical power systems usually requires high storage capacity. The authors have proposed a measurement technique, based on both a random sampling strategy and a statistical approach, which allows to reconstruct the trend of a given parameter by processing a very limited amount of data. In this paper, a smart system implementing such a technique is presented. It is a microcontroller-based device devoted to the acquisition of the rms values on low voltage systems. The results of some experimental tests showing the good performance of the implemented device are also presented and discussed.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130064253","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
Harmonics effect on rectifier current imbalance 谐波对整流电流不平衡的影响
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409453
V. Gelman
{"title":"Harmonics effect on rectifier current imbalance","authors":"V. Gelman","doi":"10.1109/ICHQP.2004.1409453","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409453","url":null,"abstract":"Analyzed data collected during the field test of close coupled 12 pulse rectifier-transformer with wye and delta bridges connected in parallel. Observed the wye delta current imbalance higher then expected based on transformer data. Found the substantial presence of 5/sup th/ harmonic in the incoming line voltage. Provided explanation of measured difference between the wye delta voltages due to harmonics presence. Presented the effect of harmonics on the rectifier current imbalance. Calculated current imbalance based on the observed harmonic content and transformer during the tests.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122438113","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
Comparison of three series hybrid active power filter topologies 三种串联混合有源电力滤波器拓扑结构的比较
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409375
J. Turunen, M. Salo, H. Tuusa
{"title":"Comparison of three series hybrid active power filter topologies","authors":"J. Turunen, M. Salo, H. Tuusa","doi":"10.1109/ICHQP.2004.1409375","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409375","url":null,"abstract":"The most common problem arising in the supply network is current harmonics. They may cause harmonics in the supply voltage and create problems, for example, in the distribution network. Active and passive filters are the traditional way of filtering currents. However, both of these have some disadvantages, namely resonance and tuning problems in passive filters and lack of high power switches in active filters. Research has recently been done to combine active and passive filters. These combinations are called hybrid filters and their purpose is to work efficiently without the disadvantages characteristic of the active and passive filter used alone. This paper presents a comparison of three hybrid filter topologies. All hybrid filters included in the comparison are based on a series active power filter. The comparison between filters is made according to their capability to filter current harmonics in the case of nonlinear load at different operating conditions.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122439137","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: 24
Unbalanced STATCOM analysis in the harmonic domain 谐波域的不平衡STATCOM分析
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409359
C. Collins, A. Wood, N. Watson
{"title":"Unbalanced STATCOM analysis in the harmonic domain","authors":"C. Collins, A. Wood, N. Watson","doi":"10.1109/ICHQP.2004.1409359","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409359","url":null,"abstract":"System imbalance plays an important role in the harmonic performance of switching devices, and it is important to account for these sequence transfers in computational models. This work considers these sequence transfers and then outlines a nonlinear harmonic domain approach to unbalanced PWM STATCOM modelling. The proposed model is validated against time domain simulation and used to consider a STATCOM under unbalanced conditions. This investigation concludes that the impact of system imbalance on STATCOM performance is two-fold. The imbalance generates noncharacteristic harmonics, which in turn propagate through the control system causing a secondary effect on characteristic harmonic generation. The magnitude of this secondary effect is dependent on the control system, highlighting the necessity of including an accurate control scheme representation. In addition this unbalanced propagation through the controller decreases system linearity, making it necessary to recalculate the Jacobian at each iteration.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129012219","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
Introducing prob-a-sag - a probabilistic method for voltage sag management 介绍了一种电压暂降管理的概率方法——proba -sag
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409362
P. Pohjanheimo, M. Lehtonen
{"title":"Introducing prob-a-sag - a probabilistic method for voltage sag management","authors":"P. Pohjanheimo, M. Lehtonen","doi":"10.1109/ICHQP.2004.1409362","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409362","url":null,"abstract":"Comprehensive voltage sag management in a power distribution system includes the technical and economic impact of sags, annual frequency of sags, as well as the effect of possible mitigative means. A probabilistic approach is required for performing the task in complicated industrial processes. Prob-a-sag is a novel method combining all these features. Two-dimensional arrays are used for expressing the quantities and carrying out the analysis or optimization. Equipment sag sensitivity is expressed as tripping probability, which enables the probabilistic sensitivity assessment of a large process. The method is very flexible; increasing the array resolution improves the result precision. If sag quantities other than depth and duration are preferred, we may increase the number of array dimensions accordingly. Prob-a-sag is compatible with any spreadsheet application, or may be implemented in sophisticated network analysis software.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133792289","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: 13
Response analysis of an industrial mixer drive subjected to voltage sags. Part I. Modeling and simulation results 电压跌落作用下的工业混合器驱动响应分析。第一部分:建模与仿真结果
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951) Pub Date : 2004-09-12 DOI: 10.1109/ICHQP.2004.1409373
N. S. Tunaboylu, E. R. Collins
{"title":"Response analysis of an industrial mixer drive subjected to voltage sags. Part I. Modeling and simulation results","authors":"N. S. Tunaboylu, E. R. Collins","doi":"10.1109/ICHQP.2004.1409373","DOIUrl":"https://doi.org/10.1109/ICHQP.2004.1409373","url":null,"abstract":"Modeling and Simnon simulation analysis of an industrial mixer motor/drive system has been done during voltage sags. A novel ride-through compensation scheme for an industrial mixer motor/drive system is presented during voltage sags. From d-q dynamic model of the electrical and mechanical processes, Simnon simulation equations are derived. A ride-through compensation scheme which exploits the surplus energy stored in the DC-link capacitor is introduced. Both compensated and uncompensated cases have been simulated.","PeriodicalId":406398,"journal":{"name":"2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951)","volume":"472 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116580528","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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