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A key issue in LV distribution system management and control is to increase the flexibility of the existing networks so as to allow a large spread of Distributed Energy Resources (DERs). In this perspective, virtual levels of aggregation, called Virtual Microgrids (VMs), are introduced, which are composed of parts of the distribution networks including different types of DERs and their control systems...
Economic, political, environmental, social and technical factors have prompted the emergence of the smart grid concept. Distribution systems are arguably the element of power delivery infrastructures where smart grid technologies are likely to have the most significant impacts. The smart grid concept has driven the coordinated and integrated application of existing power, communications, control,...
Distributed energy resources (DE) or distributed generators (DG) with power electronics interfaces and logic control using local measurements are capable of providing reactive power related ancillary system services. In particular, local voltage regulation has drawn much attention in regards to power system reliability and voltage stability, especially from past major cascading outages. This paper...
Distributed energy resources have been receiving increasing attention over the past decade as alternatives to centralized generation. In the next few decades, the penetration of microgrids is expected to grow dramatically. The bulk of DERs will be integrated into existing distribution systems. To maximize the economic and reliability benefits of these installations, distributed systems will evolve...
This paper describes a study to estimate the increase in voltage-dip frequency when an increasing amount of large power stations is replaced by small units connected to distribution systems
This paper presents a method for calculating the reliability of distribution systems with distributed energy resources (DER). The impact of intentional islanding of the DER units on the reliability is studied in detail as well as the impact of different switching devices. A Monte-Carlo-based computer program has been developed to simulate the performance of different typical distribution feeders....
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