Power Quality Disturbances Assessment during Unintentional Islanding Scenarios. A Contribution to Voltage Sag Studies

Serrano‐Fontova, Alexandre; Torrens, Pau Casals; Bosch, R.

doi:10.3390/en12163198

Cited by 18 publications

(9 citation statements)

References 59 publications

(64 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The work [10] "Power Quality Disturbances Assessment during Unintentional Islanding Scenarios" by A. Serrano et al presents a novel voltage sag topology that occurs during an unintentional islanding operation. This is precisely the value of the paper, because it analyzed and documented a particular and very common case in the industry practice: the effects of large induction motors in islanding cases.…”

Section: A Short Review Of the Contributions In This Issuementioning

confidence: 99%

Special Issue “Analysis for Power Quality Monitoring”

de-la-Rosa

Pérez-Donsión

2020

Energies

View full text Add to dashboard Cite

We are immersed in the so-called digital energy network, continuously introducing new technological advances for a better way of life. As a consequence, numerous emerging words are relevant to this point: Internet of Things (IoT), big data, smart cities, smart grid, industry 4.0, etc. To achieve this formidable goal, systems should work more efficiently, a fact that inevitably leads to power quality (PQ) assurance. Apart from its economic losses, a bad PQ implies serious risks for machines and, consequently, for people. Many researchers are endeavouring to develop new analysis techniques, instruments, measurement methods, and new indices and norms that match and fulfil the requirements regarding the current operation of the electrical network. This book, and its associated Special Issue, offer a compilation of some of the recent advances in this field. The chapters range from computing to technological implementation, going through event detection strategies and new indices and measurement methods that contribute significantly to the advance of PQ analysis and regulation. Experiments have been developed within the frameworks of research units and projects and deal with real data from industry practice and public buildings. Human beings have an unavoidable commitment to sustainability, which implies adapting PQ monitoring techniques to our dynamic world, defining a digital and smart concept of quality for electricity.

show abstract

Section: A Short Review Of the Contributions In This Issuementioning

confidence: 99%

Special Issue “Analysis for Power Quality Monitoring”

de-la-Rosa

Pérez-Donsión

2020

Energies

View full text Add to dashboard Cite

show abstract

“…DG can use different grid monitoring techniques for obtaining online estimates of the grid parameters and stay synchronized with the grid. However, the performance of these estimators is perturbed by faults in the grid, such as voltage sags and swells, which in turn implies a worse DG performance of DG when injecting power to the grid [5][6][7][8][9][10][11][12][13][14][15]. Therefore, during grid faults, a fast and accurate detection of the grid voltage parameters is essential to keep a high quality in the DG's operation [6].…”

Section: Introductionmentioning

confidence: 99%

SOGI-FLL Grid Frequency Monitoring with an Error-Based Algorithm for a Better Response in Face of Voltage Sag and Swell Faults

et al. 2021

View full text Add to dashboard Cite

The SOGI-FLL (second-order generalized-integrator frequency-locked-loop) is a well-known and simple adaptive filter that allows estimation of the parameters of the grid voltage with a small computational burden. However, this structure has shown to be sensitive to the events of voltage sags and swell faults, especially to voltage sags that deeply distort the estimated frequency. In this paper an algorithm is proposed to face the fault that modifies the SOGI-FLLs gains in order to achieve a better transient response with a reduced perturbation in the estimated frequency. The algorithm uses the SOGI’s instantaneous and absolute error to detect the fault and change the SOGI-FLL gains during the fault. Moreover, the average of the absolute error is used for returning to normal operating conditions. The average value is obtained by means of a single low pass filter (LPF). The approach is easy to implement and represents a low computational burden for being implemented into a digital processor. The performance is evaluated by using simulations and real-time Typhoon Hardware in the Loop (HIL) results.

show abstract

“…Energies 2022, 15, x FOR PEER REVIEW 2 of 16 below 90% of the specified voltage for more than a few cycles, such equipment can trip. Furthermore, voltage sags are caused by faults that occur hundreds of kilometers away [5][6][7][8]. Even if the voltage sag is not as severe as an interruption, the overall damage caused by sags is larger than that caused by interruptions since there are much more voltage sags than interruptions.…”

Section: Introductionmentioning

confidence: 99%

Real Time Sustainable Power Quality Analysis of Non-Linear Load under Symmetrical Conditions

et al. 2021

View full text Add to dashboard Cite

Voltage sag is one of the most significant power quality problems in the industry and has a significant impact on induction motor safety and stability. This paper analyzes the characteristics of voltage dips in power systems and induction motors with a special emphasis on balanced dips with the help of virtual grids (regenerative grid simulator), as per IEC 61000-4-11. Three phase induction motors with 3.3 kW, 16 A coupled to a DC generator with 3.7 kW, and 7.8 A rated are considered for the test analysis. This paper aids in the development of an induction motor to achieve improved precision by taking different voltage sags into account. The experimental results benefit the design modifications of induction motors at industrial and other commercial levels of consumers regarding major power quality issues and the behavior of the induction motors. A proposed modification employing ANSYS is provided to further examine the precise performance of induction motors during sag events.

show abstract

Power Quality Disturbances Assessment during Unintentional Islanding Scenarios. A Contribution to Voltage Sag Studies

Cited by 18 publications

References 59 publications

Special Issue “Analysis for Power Quality Monitoring”

Special Issue “Analysis for Power Quality Monitoring”

SOGI-FLL Grid Frequency Monitoring with an Error-Based Algorithm for a Better Response in Face of Voltage Sag and Swell Faults

Real Time Sustainable Power Quality Analysis of Non-Linear Load under Symmetrical Conditions

Contact Info

Product

Resources

About