Power quality indicators

Mamo, X.; Javerzac, J.-L.

doi:10.1109/ptc.2001.964598

Cited by 15 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To determine the power quality of a power grid, many different performance indexes have been proposed [20][21][22][23]. In the adding lines problem, we needed a metric to indicate the voltage profile.…”

Section: Power Mileagementioning

confidence: 99%

Power-mileage-based Algorithm for the Optimization of Distribution Network Structures via Adding Transmission Lines

Wei

Chen

et al. 2019

Energies

View full text Add to dashboard Cite

In remote areas, large power stations are often installed to supply local loads due to the difficulties of power transmission. However, with the development of renewable energies and poverty alleviation programs, many renewable energy stations have been installed in such areas. This large amount of surplus and fluctuating energy causes a poor voltage quality, and this problem is difficult to solve with traditional methods. Adding transmission lines can be a feasible solution, but the related research is limited. To provide a guideline for this solution, a network optimization algorithm is proposed in this paper. In the process, a sub-grid that is far from the national grid with an imbalanced power supply and demand is connected to the national grid directly to improve the power quality. First, the linear performance index power mileage is defined to facilitate the calculation and help denote the voltage quality. Then, an iterative algorithm is formed to perform the network optimization and automatically choose the number of clusters. A case study of an actual power grid in Chongqing, China, and an IEEE 123-bus case are used to verify our algorithm. The results show there is a great improvement in the voltage profile.

show abstract

Section: Power Mileagementioning

confidence: 99%

Power-mileage-based Algorithm for the Optimization of Distribution Network Structures via Adding Transmission Lines

Wei

Chen

et al. 2019

Energies

View full text Add to dashboard Cite

show abstract

“…In recent years, with the continuous development of industrialization and national economic level, the whole society is more and more practical to the power, the power quality requirements are gradually improved, the quality of power quality is directly related to the entire power market economic benefits. With the adjustment of energy structure and the rapid development of national economy, long-distance DC transmission and large power grid interconnection to the fundamental changes in the structure of the grid, the resulting AC and DC hybrid operation of the power system and the increasingly variable power grid negative characteristics , As well as the non-li-near load and time-varying load in the power grid, brought about such problems as harmonics, voltage fluctuation and flicker, three-phase imbalance [1] [2], which deteriorated the power quality index of the grid. Therefore, it is important to develop a suitable power quality assessment method to evaluate the power quality index synthetically and to improve the power quality to optimize the electricity market.…”

Section: Introductionmentioning

confidence: 99%

Research on Power Quality Evaluation Based on Radar Chart Method and Fuzzy Membership Degree

Pan¹,

Zhou²,

Zhang³

et al. 2017

EPE

View full text Add to dashboard Cite

Aiming at the current limit value of six steady-state energy indexes, the current radar method is used for reference. A method of comprehensive evaluation of power quality based on improved radar method is proposed, which improves the power quality index Type radar pattern to represent the steady-state indicator. Each of the main indicators corresponds to a partial ring, and the angle of the annular portion is mainly affected by the size of the weight. Compared with the previous radar map method to maintain the independence of the indicators and a single indicator of the binding data assessment. The method has the advantages of good feasibility.

show abstract

“…The second typology properly handles traditional power quality indices to ascertain a value for the overall voltage quality [3,4].…”

Section: Introductionmentioning

confidence: 99%

A global index for discrete voltage disturbances

Carpinelli

Caramia

Varilone

et al. 2007

2007 9th International Conference on Electrical Power Quality and Utilisation

View full text Add to dashboard Cite

The presence of the new liberalized markets has increased interest in power quality disturbances due to their economic value. Customers have more choices; then disturbances are becoming bigger issues and suppliers and customers should regulate them in the frame of power quality contracts. A single global power quality index can be very useful for characterizing the overall level of the voltage waveform quality; in particular, this index can provide global indications regarding different aspects of voltage quality and allows a strong reduction of the measurement data needed to cover all power quality disturbances. in this paper, a global power quality index (GPQI) for discrete disturbances is proposed, based on the discrete severity indicators (DSI). We present the results of a GPQI evaluation of an Italian distribution system on voltage dips, whose measured data are available on the website of the project QuEEN led by CESI Ricerca.

show abstract

Power quality indicators

Cited by 15 publications

References 0 publications

Power-mileage-based Algorithm for the Optimization of Distribution Network Structures via Adding Transmission Lines

Power-mileage-based Algorithm for the Optimization of Distribution Network Structures via Adding Transmission Lines

Research on Power Quality Evaluation Based on Radar Chart Method and Fuzzy Membership Degree

A global index for discrete voltage disturbances

Contact Info

Product

Resources

About