Reliable Generator Islanding Detection for Industrial Power Consumers With On-Site Generation

Anne, RadhaKiranMaye; Basha, Faridul Katha; Palaniappan, Ramanathan; Oliver, Kent L.; Thompson, Michael J.

doi:10.1109/tia.2015.2466560

Cited by 8 publications

(3 citation statements)

References 5 publications

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“…To find islanding scenarios, passive approaches rely on local measurements that are readily available. In actuality, a grid's abrupt islanding modifies some electrical properties including frequency and voltage [15,85,86]. Relays for over/under voltage and frequency are consequently the most used passive methods.…”

Section: Passive Idssmentioning

confidence: 99%

An Extensive Overview of Islanding Detection Strategies of Active Distributed Generations in Sustainable Microgrids

et al. 2023

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Active distributed generations (ADGs) are more prevalent near consumer premises. However, the ADG penetration contribute a lot of dynamic changes in power distribution networks which cause different protection and control issues. Islanding is one of the crucial problems related to such ADGs; on the other hand, islanding detection is also a challenging aspect. Therefore, an extensive review of islanding real-time depiction and islanding detection strategies (IDS) is provided in this work. Initially, the focus is on islanding detection concept depiction, islanding detection standardization, benchmark test systems for IDS validation, and software/tools and an analysis of their pros and cons. Then, the detailed classification of IDSs is presented with an emphasis on remote and local methods. Passive, active, and hybrid can be used further to categorize local IDSs. Moreover, the statistical comparative analysis of the IDSs based on the non-detection-zone (NDZ), cost-effectiveness, and false operation are mentioned. The research gap and loopholes in the existing work based on limitations in the existing work are presented. Finally, the paper is concluded with detailed recommendations.

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Section: Passive Idssmentioning

confidence: 99%

An Extensive Overview of Islanding Detection Strategies of Active Distributed Generations in Sustainable Microgrids

et al. 2023

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“…In addition, many other types of methods are also highly effective. The methods proposed in [18,19] belong to another classic type of islanding detection methods, i.e., frequency shift methods, which perturbed current phase and reactive current, respectively; the Sandia Frequency Shift (SFS) method was improved in [20], which is a classic active method, by decreasing the positive feedback gain to reduce the effect on system stability; an idea of grid stiffness measurement was proposed in [21], by which an island is identified according to the stiffness change; the method in [22] periodically perturbed the reactive current and confirmed that there is a frequency undulation in an island condition, which is seen as a criterion of islanding; a hybrid method based on the SFS method and rate of change of frequency (ROCOF) relay is proposed in [23], by which a smaller non-detection zone (NDZ) is achieved; two passive methods were reported in [24] and [25], respectively, the former of which employed the signal processing theory and measured the network impedance passively, and the latter of which estimated the voltage and impedance parameters of a linear Thevenin-like model to detect an island; a wavelet packet transform was used in [26] to extract the signal for islanding detection; the method in [27] was a remote method, which took advantage of the phasor measurement unit to collect the evidence of an island; and remote communication was also utilized in [28] to facilitate the performance of islanding detection.…”

Section: Introductionmentioning

confidence: 99%

An Irregular Current Injection Islanding Detection Method Based on an Improved Impedance Measurement Scheme

et al. 2018

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One class of islanding detection methods, known as impedance measurement-based methods and voltage change monitoring-based methods, are implemented through injecting irregular currents into the network, for which reason they are defined in this paper as irregular current injection methods. This paper indicates that such methods may be affected by distributed generation (DG) unit cut-in events. Although the network impedance change can still be used as a judgment basis for islanding detection, the general impedance measurement scheme cannot separate island events from DG unit cut-in events in multi-DG operation. In view of this, this paper proposes a new islanding detection method based on an improved impedance measurement scheme, i.e., dynamic impedance measurement, which will not be affected by DG unit cut-in events and can further assist some other equipment in islanding detection. The simulations and experiments verify the stated advantages of the new islanding detection method.

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“…Therefore, in these cases where DERs are present, it is necessary to take in account the islanding mode detection [221] and the currents contribution of DER in the ring faults in order to establish appropriated protection settings. In the migration of the system to an isolated mode, several protections are enabled and others are disabled.…”

Section: Ring Main Operation With Der Sourcesmentioning

confidence: 99%

Automatic fault location in electrical distribution networks with distributed generation

Sánchez¹

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Nowadays the electrical network is continuously evolving due to the increasing deployment of Information Technologies and the Distribution Energy Resources. This scenario affects directly to the quality of service in the electrical distribution networks. For this reason, the Power Quality is a key important concern to make the electrical network evolve towards a Smart Grid. Power quality is defined through three important focal points: availability, wave quality and commercial quality. The presence of the Distribution Energy Resources in the current electrical distribution network is showing a new scenario where the fault detection is more complex due to the flow current is in both directions. This thesis is focused in the analysis of several methods to locate a fault in electrical distribution network and also how the current communication standards can improve considerably this fault location. It is important to remark that the main contribution of this thesis is in the analysis of several propositions and algorithms to enhance the fault location in a distribution network using the current Intelligent Electronic Device with international standards such as IEC 61850. All of these algorithms have been focused to work in a mesh distribution networks. Another important contribution of this thesis is in the adaptive protection system in order to isolate correctly the fault in a ring system distribution. Although this proposition could be extended to a mesh network where the elements of the network can operate under a fault. Finally, the thesis concludes that the use of communication standards and Internet of Things with current developed Intelligent Electronic Devices technology can contribute significantly to enhance the current and future electrical network distribution. La xarxa elèctrica evoluciona contínuament a causa del creixent desplegament de les Tecnologies de la Informació i dels Recursos Energètics Distribuïts. Aquest escenari afecta directament a la qualitat de servei de les xarxes de distribució elèctrica. Per aquest motiu, el mantenir i millorar el nivell de qualitat d'energia és un punt clau per fer evolucionar la xarxa elèctrica cap a una xarxa Smart Grid. Aquesta qualitat de l'energia es defineix per medi de de tres punts importants: disponibilitat, qualitat d'ona i qualitat comercial. La presència dels Recursos Energètics Distribuïts mostra un nou escenari en què la detecció de defectes es complica afectant a la disponibilitat del servei. Aquesta tesi es centra principalment en l'anàlisi de diversos mètodes per localitzar un defecte a la xarxa de distribució elèctrica i també en com l'ús dels estàndards de comunicació actuals poden contribuir considerablement a la localització del defecte. És important remarcar que la principal contribució d'aquest document ha estat en l'anàlisi de diverses proposicions i algoritmes per millorar la localització de faltes en una xarxa de distribució utilitzant Dispositius Electrònics Intel·ligents amb estàndards internacionals com l'IEC 61850. Tots aquests algoritmes han estat definits per treballar en xarxes de distribució mallades. Una altra contribució important d'aquesta tesi es troba en el sistema de protecció adaptatiu per tal d'aïllar correctament el defecte en una distribució del sistema d'anell amb interruptors automàtics. Aquesta proposta es podria ampliar a una xarxa mallada. Finalment, la tesi conclou amb que l'ús d'estàndards de comunicació i l'Internet of Things en combinació amb Dispositius Electrònics Intel·ligents, desenvolupats actualment, poden contribuir significativament a millorar la distribució de la xarxa elèctrica actual i futura.

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Reliable Generator Islanding Detection for Industrial Power Consumers With On-Site Generation

Cited by 8 publications

References 5 publications

An Extensive Overview of Islanding Detection Strategies of Active Distributed Generations in Sustainable Microgrids

An Extensive Overview of Islanding Detection Strategies of Active Distributed Generations in Sustainable Microgrids

An Irregular Current Injection Islanding Detection Method Based on an Improved Impedance Measurement Scheme

Automatic fault location in electrical distribution networks with distributed generation

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