2020 19th International Conference on Harmonics and Quality of Power (ICHQP)最新文献_第7页

Increase of Diagnostic Capabilities of Voltage Fluctuation Indicies 提高电压波动指标的诊断能力

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ICHQP46026.2020.9177887

P. Kuwałek

{"title":"Increase of Diagnostic Capabilities of Voltage Fluctuation Indicies","authors":"P. Kuwałek","doi":"10.1109/ICHQP46026.2020.9177887","DOIUrl":"https://doi.org/10.1109/ICHQP46026.2020.9177887","url":null,"abstract":"Voltage fluctuation indices are parameters describing the power quality in the power grid. These indices consist of two quantities, the amplitude $delta U$ and the rate f of voltage changes. These indices are determined from changes in the rms values of voltage at time U(t). Voltage fluctuation indices allow statistical evaluation of voltage variation, also considering flicker assession. In addition, voltage fluctuation indices allow recreation of voltage changes caused by disturbing loads that changes its operating state with a frequency of up to 20 Hz. The recreation of voltage changes allows recalculation of voltage fluctuation indices to other parameters describing voltage variations, and allows determination of parameters associated with sources of voltage fluctuations. The paper has been proposed a new method for determining voltage fluctuation indices that allows for the recreation of voltage changes, considering disturbing loads that change their operating state with a frequency greater than 20 Hz. The need to change the method of determining voltage fluctuation indices is justified by the increasing number of power electronics devices, which are the source of this type of disturbances. The quality of the proposed solution was verified by simulation and experimental studies with the use of the short-time flicker indicator Pst.","PeriodicalId":436720,"journal":{"name":"2020 19th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120954068","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

Test Procedure for Determining the Stabilisation Time of Lamps and Other Household Appliances 测定灯和其他家用电器稳定时间的试验程序

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ICHQP46026.2020.9177888

V. Khokhlov, Jan Meyer, P. Schegner

引用次数: 2

ICHQP 2020 Title Page ICHQP 2020标题页

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ichqp46026.2020.9177923

引用次数: 0

Harmonic Cancellations in Parallel Active Front End Inverters in Distribution Networks: IEC 61000-3-16 and Phase-Angles 配电网中并联有源前端逆变器的谐波消除:IEC 61000-3-16和相角

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ICHQP46026.2020.9177919

Firuz Zare, J. Yaghoobi, K. Gharani, D. Kumar

引用次数: 1

Probabilistic bivariate modeling of harmonic current 谐波电流的概率二元模型

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ICHQP46026.2020.9177870

M. Jarkovoi, L. Kütt, M. N. Iqbal

引用次数: 2

Evaluation of Jacobian used in Simulation of Nonlinear Circuits in the Modified Harmonic Domain 修正谐波域非线性电路仿真中雅可比矩阵的评价

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ICHQP46026.2020.9177883

A. Ramirez, G. Lazaroiu, J. Cañedo, M. Roscia

引用次数: 0

Impact of 11kV Capacitor Bank Switching at Distribution Power Network from Power Quality Perspective 从电能质量角度对配电网11kV电容器组切换的影响

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ICHQP46026.2020.9177911

Qais Atef Qawaqneh

{"title":"Impact of 11kV Capacitor Bank Switching at Distribution Power Network from Power Quality Perspective","authors":"Qais Atef Qawaqneh","doi":"10.1109/ICHQP46026.2020.9177911","DOIUrl":"https://doi.org/10.1109/ICHQP46026.2020.9177911","url":null,"abstract":"This study investigates the consequences on the power quality of the distribution power network during several switching scenarios of shunt capacitor banks; at different phase angles, using Vacuum Interrupter Circuit Breaker (VI-CB). Real power quality measurements were recorded at the 11kV side of the main distribution power substations (132/11kV), and due to the unexpected findings, a distinct measurement method has been developed and followed for meeting the need of obtaining a real measurement of Transient Recovery Voltage (TRV) across the opening contact gap of the VI-CB; using a special power quality analyzer, resulted in capturing outstanding findings which seems to counter the scientific documentation found in the relevant literatures which mainly rely on system modeling and simulation results. Focus was also given on harmonic analysis during switching events. Furthermore, Fault Tree Analysis method, used to explain the failure modes and consequences of these power quality disturbances during capacitor bank switching. The conclusion highlights some important factors and results related to the high frequency behavior and amplitude amplifications of both current and voltage during switching events.","PeriodicalId":436720,"journal":{"name":"2020 19th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121410292","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

Impact Evaluation of the Neutral-Grounding Resistance on Short-Duration RMS Voltage Variations 中性点接地电阻对短时均方根电压变化的影响评价

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ICHQP46026.2020.9177891

L. A. D. Costa, Younes Mohammadi, R. Leborgne, D. Gazzana

{"title":"Impact Evaluation of the Neutral-Grounding Resistance on Short-Duration RMS Voltage Variations","authors":"L. A. D. Costa, Younes Mohammadi, R. Leborgne, D. Gazzana","doi":"10.1109/ICHQP46026.2020.9177891","DOIUrl":"https://doi.org/10.1109/ICHQP46026.2020.9177891","url":null,"abstract":"Neutral-grounding resistors are employed on transmission, distribution and industrial electric power systems to achieve, among other goals, a limited magnitude of the ground-fault current. The impedance connected between a neutral point and the ground influences the total zero-sequence impedance of a system, which impacts voltages during ground faults. Therefore, there is a relation between the grounding scheme and voltage disturbances, like the short-duration rms voltage variations (SDVVs), which include interruptions, sags, and swells. Hence, this paper presents an analytical evaluation of the influence of the neutral-grounding resistance on SDVVs during single-phase-to-ground (LG) and two-phase-to-ground (LLG) faults for an industrial system. It is observed that the influence occurs mainly on phase-to-ground voltages, there being an impact on phase-to-neutral or phase-to-phase ones just for a few values of fault resistance. The results thus indicate better neutral grounding practices for industrial systems and show the best load connections, concerning SDVVs and equipment tripping.","PeriodicalId":436720,"journal":{"name":"2020 19th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123781222","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

Value Added Sequential Services for BTM Storage when Paired with PV Systems BTM存储与光伏系统配对时的增值顺序服务

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ICHQP46026.2020.9177904

B. Blackstone, Y. Baghzouz

引用次数: 2

A Framework for Evaluating Harmonic Losses in Distribution Planning 配电规划中谐波损耗的评估框架

2020 19th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2020-07-01 DOI: 10.1109/ICHQP46026.2020.9177913

G. Singh, Carl H. Miller, W. Howe

{"title":"A Framework for Evaluating Harmonic Losses in Distribution Planning","authors":"G. Singh, Carl H. Miller, W. Howe","doi":"10.1109/ICHQP46026.2020.9177913","DOIUrl":"https://doi.org/10.1109/ICHQP46026.2020.9177913","url":null,"abstract":"With the recent advent of inverter interfaced Distributed Energy Resources (DER) and end use loads employing power electronic circuits, power system harmonics are once again receiving attention as utilities integrate these resources in to their power grid. With the increased focus on DERs and new consumer electronic loads, one aspect that often gets ignored is the economic impact of harmonic emission from such energy sources and loads. This paper is part of a first attempt to bridge this gap in knowledge. Based upon previous research, a new ‘harmonic losses calculator’ was developed. This calculator quantifies losses due to the flow of harmonic currents on a distribution circuit and assigns a dollar value to them. Coupling this tool with the pre-existing ‘Harmonic Evaluation Module’, a new framework is proposed in which the economic impact of non-linear load or DER penetration can be accurately determined. The objective behind such an exercise is to enable utilities to evaluate the impact of harmonic load or savings due to DER penetration, at the planning stage. The framework is demonstrated by showing the impact of penetration of harmonic load and DER on two known distribution circuits, in the OpenDSS simulation framework. This is followed by a discussion of the change in operating costs of the feeder due to such load or generation. The paper closes with a discussion of the anticipated future research and expected capabilities to be added to this framework.","PeriodicalId":436720,"journal":{"name":"2020 19th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128801565","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