Current Status and Issues of Concern for the Integration of Distributed Generation Into Electricity Networks

Roy, N. K.; Pota, H. R.

doi:10.1109/jsyst.2014.2305282

Cited by 91 publications

(57 citation statements)

References 22 publications

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“…The reason of disconnection is to avoid healthy zones from being affected due to fault [28]. This standard had been applied widely in the Canada and United States [29].…”

Section: Disconnection Of Dg When Fault Happenmentioning

confidence: 99%

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Progress on Protection Strategies to Mitigate the Impact of Renewable Distributed Generation on Distribution Systems

et al. 2017

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Abstract:The benefits of distributed generation (DG) based on renewable energy sources leads to its high integration in the distribution network (DN). Despite its well-known benefits, mainly in improving the distribution system reliability and security, there are challenges encountered from a protection system perspective. Traditionally, the design and operation of the protection system are based on a unidirectional power flow in the distribution network. However, the integration of distributed generation causes multidirectional power flows in the system. Therefore, the existing protection systems require some improvement or modification to address this new feature. Various protection strategies for distribution system have been proposed so that the benefits of distributed generation can be fully utilized. This paper reviews the current progress in protection strategies to mitigate the impact of distributed generation in the distribution network. In general, the reviewed strategies in this paper are divided into: (1) conventional protection systems and (2) modifications of the protection systems. A comparative study is presented in terms of the respective benefits, shortcomings and implementation cost. Future directions for research in this area are also presented.

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“…The reason of disconnection is to avoid healthy zones from being affected due to fault [28]. This standard had been applied widely in the Canada and United States [29].…”

Section: Disconnection Of Dg When Fault Happenmentioning

confidence: 99%

“…In IEEE 1547, a maximum delay of two seconds is given for a DG to sense and detach from an unintentional island as had been practiced in U.S., U.K., and Australian standards. The German standard allows a longer maximum time delay of five seconds [29].…”

Section: Disconnection Of Dg When Fault Happenmentioning

confidence: 99%

Progress on Protection Strategies to Mitigate the Impact of Renewable Distributed Generation on Distribution Systems

et al. 2017

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“…It is usually subjected to same issues and more or less same requirements as LDN. It has advantages of comparatively higher reliability, DG penetration, better voltage response (for DG critical voltage mode) and comparatively fewer power losses compared to LDN from objective viewpoint [74,75]. However, complex fault traceability makes is more susceptible to faults and early recovery from reliability viewpoint in traditional planning methods [76].…”

Section: Mesh Distribution Network (Mdn)mentioning

confidence: 99%

Smart Distribution Networks: A Review of Modern Distribution Concepts from a Planning Perspective

et al. 2017

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Smart grids (SGs), as an emerging grid modernization concept, is spreading across diverse research areas for revolutionizing power systems. SGs realize new key concepts with intelligent technologies, maximizing achieved objectives and addressing critical issues that are limited in conventional grids. The SG modernization is more noticeable at the distribution grid level. Thus, the transformation of the traditional distribution network (DN) into an intelligent one, is a vital dimension of SG research. Since future DNs are expected to be interconnected in nature and operation, hence traditional planning methods and tools may no longer be applicable. In this paper, the smart distribution network (SDN) concept under the SG paradigm, has presented and reviewed from the planning perspective. Also, developments in the SDN planning process have been surveyed on the basis of SG package (SGP). The package presents a SDN planning foundation via major SG-enabling technologies (SGTF), anticipated functionalities (SGAF), new consumption models (MDC) as potential SDN candidates, associated policies and pilot projects and multi-objective planning (MOP) as a real-world optimization problem. In addition, the need for an aggregated SDN planning model has also been highlighted. The paper discusses recent notable related works, implementation activities, various issues/challenges and potential future research directions; all aiming at SDN planning.

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“…In Colombia, the supply of electrical energy is a key service for the economic and social growth of communities that enables to reduce the huge social inequality between the populations in the national interconnected system and the non-interconnected areas [8]. Several sectors of the electric market expect a considerable installation of DG in the electrical distribution system, and a DG penetration greater than 30 or 40% results in issues for the operation and planning of electrical systems [9]. In fact, massive installation without an adequate control and planning system could have negative side effects that would force network operators to incur cost overruns, as they affect the indices of security, reliability and security of the supply [10].…”

Section: Introductionmentioning

confidence: 99%

Island operation capability in the Colombian electrical market: a promising ancillary service of distributed energy resources

Marín-Jiménez

Carvajal-Quintero

Guerrero

2018

TecnoL.

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Nowadays most distributed generators are not designed to operate under islanded conditions. The ancillary service of islanded operation capability is proposed as a technical support service with the ability to increase the reliability, security and flexibility of an electrical distribution system. Nevertheless, island operation entails technical, economic and social issues that must be discussed and analyzed during the planning stage.This article compares an intentional island project to a preplanned island and describes the main issues and benefits of islanded operation. Additionally, the reliability of the service to implement the islanded operation capability as an ancillary service is economically assessed, which shows that island-based operation has the potential to minimize nonsupplied energy up to 50%. Also, a technical analysis of implementing island operation capability ancillary service is presented. Subsequently, an existing electrical distribution system with small hydropower plants is considered as a study case in order to identify the technical requirements set out for both, the distribution system and the generation source. Finally, taking into account the current Law and regulations, a proposal is outlined for the implementation of the island operation capability ancillary service in the Colombian electrical system. KeywordsDistributed Energy Resources, Distributed Generation, Microgrids, Islanded Operation Capability. ResumenHoy en día, la mayoría de los generadores distribuidos no están diseñados para operar bajo condiciones de isla. El servicio complementario de capacidad de operación por islas se presenta como un servicio de soporte técnico con la capacidad de aumentar la resiliencia, confiabilidad, seguridad y flexibilidad de un sistema eléctrico de distribución. Sin embargo, la operación por islas presenta unos desafíos técnicos, económicos y sociales que deben discutirse y analizarse durante la etapa de planificación.En este artículo, se presenta una comparación entre una operación intencional por islas y una isla planificada previamente, así como una descripción de los principales desafíos y beneficios de la operación por islas. Además, se realiza una evaluación económica de la confiabilidad del servicio de energía eléctrica al implementar la capacidad de operación por islas como un servicio complementario. Dicha evaluación muestra que la operación por islas tiene el potencial de minimizar la energía no suministrada hasta en un 50%. Además, se muestra un análisis técnico para la implementación del servicio complementario de capacidad de operación por islas. Luego, se estudia un sistema eléctrico de distribución existente con pequeñas centrales hidroeléctricas como un estudio de caso, con el fin de identificar los requisitos técnicos establecidos tanto para el sistema de distribución como para la fuente de generación. Finalmente, y teniendo en cuenta las normativas y regulaciones vigentes, se esboza una propuesta para la implementación del servicio complementario de capacidad de op...

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Current Status and Issues of Concern for the Integration of Distributed Generation Into Electricity Networks

Cited by 91 publications

References 22 publications

Progress on Protection Strategies to Mitigate the Impact of Renewable Distributed Generation on Distribution Systems

Progress on Protection Strategies to Mitigate the Impact of Renewable Distributed Generation on Distribution Systems

Smart Distribution Networks: A Review of Modern Distribution Concepts from a Planning Perspective

Island operation capability in the Colombian electrical market: a promising ancillary service of distributed energy resources

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