Power Quality (PQ) Survey Reporting: Discrete Disturbance Limits

Herath, H.M.S.C.; Gosbell, V.J.; Perera, Sarath

doi:10.1109/tpwrd.2005.844257

Cited by 43 publications

(25 citation statements)

References 7 publications

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“…Discrete type disturbances appear as isolated and independent events and mainly include voltage dips, voltage swells and oscillatory or impulsive transients. [5] …”

Section: A Defining Power Qualitymentioning

confidence: 99%

Need of voltage quality regulation in the future electricity infrastructure

Bhattacharyya

Myrzik

Cobben

et al. 2007

2007 9th International Conference on Electrical Power Quality and Utilisation

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Abstract-Electricity as a commodity should satisfy strict quality requirements. In the last two decades, the customer's urge for good quality of power supply has increased due to the use of more sensitive electronic devices which on the other hand might influence the electricity network too. At present, no definite responsibility with respect to power quality (PQ) aspects at the point of connection (POC) is defined in the European standard EN50160 or other standard. Also, the limiting values for various power quality parameters differ in different standards available in different countries of the world. For implementing power quality regulation in the future electricity infrastructure, it is required to evaluate the actual performance level of the electricity network. In this paper, various PQ related problems in different countries of the world are highlighted. A brief overview is presented on the present PQ status of the Dutch network and other PQ related activities.

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“…Discrete type disturbances appear as isolated and independent events and mainly include voltage dips, voltage swells and oscillatory or impulsive transients. [5] …”

Section: A Defining Power Qualitymentioning

confidence: 99%

Need of voltage quality regulation in the future electricity infrastructure

Bhattacharyya

Myrzik

Cobben

et al. 2007

2007 9th International Conference on Electrical Power Quality and Utilisation

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“…References [5,6] suggest a multi-level structured framework for PQ data analysis and compression and propose Unified Power Quality Index (UPQI) for overall PQ assessment. In [5,6] the UPQI is applied to combine continuous-type phenomena only and in [7,8] to include the event-type phenomena.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Power Quality performance in distribution networks part II - Performance Indices and ranking of network buses

Abdel-Rahman

Liao

Milanović

et al. 2016

2016 17th International Conference on Harmonics and Quality of Power (ICHQP)

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Abstract-Power Quality has become one of the main measures of distribution network operation evaluation. Utilities and customers monitor the different PQ aspects for benchmarking and compatibility check. This is a second part of a paper that investigates a long term PQ measurement campaign. In this part, global PQ indices are applied to combine a number of PQ phenomena indices into one number that represents the PQ performance of a site. Two global PQ indices are applied on 64-week PQ measurements of 8 sites. The indices are compared in terms of the final rank of sites. Different levels of flexibility are introduced to the indices to consider a variable importance or priority of the phenomena and sites.

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“…Many studies have been carried out to determine the PQ disturbances and to introduce the effective indices for explaining their features. Paper (Herath et al 2005) [5] discusses about three disturbances, voltage sag, swell and transient. In there, a method based on disturbance severity indicator (DSI) proportional to the customer complaint (CC) rate is proposed that it characterizes these phenomena and their suitable limits.…”

Section: Introductionmentioning

confidence: 99%

Assessing power quality of power system using FICA algorithm

Nourollah¹,

Zargari²

2014

Advanced Computational Techniques in Electromagnetics

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The new developments in power system such as restructuring and competitive electricity market make power quality (PQ) an important factor in competition. However, finding a measure for PQ evaluation is very difficult due to many indices involved in PQ measurement. For this reason, obtaining a single quantitative index based on the standard measurements has been a new challenge in recent researches. In this paper, a data mining method is proposed to determine global indices for PQ. The continuous and discrete indices of PQ are considered and a Unified Power Quality Index (UPQI) is presented for each PQ index, based on the method of incorporation and normalization. The indices are normalized and classified. Then, the global PQ index of each distribution site is determined by the Fast Independent Component Analysis (FICA) algorithm. In this approach, the PQ measurements of 313 real distribution sites are used to assess and classify the indices for different type of loads in the real distribution system. The results show the capability of this method to obtain an accurate measure for PQ evaluation. In this method, the convergence rate is very fast. Also for evaluating the accuracy of the proposed algorithm, an intelligent method based on artificial neural network (ANN) and fuzzy logic to obtain a global index for PQ assessment are implemented that the comparing between this two method show that the proposed method is stronger and proper than the intelligent method. This method can be extended for many distribution sites.

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Power Quality (PQ) Survey Reporting: Discrete Disturbance Limits

Cited by 43 publications

References 7 publications

Need of voltage quality regulation in the future electricity infrastructure

Need of voltage quality regulation in the future electricity infrastructure

Assessment of Power Quality performance in distribution networks part II - Performance Indices and ranking of network buses

Assessing power quality of power system using FICA algorithm

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