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Renewable energy based generations are connected at subtransmission and distribution levels and are normally dispersed throughout the network. This causes a number of benefits and challenges for power system operators. This paper outlines voltage and small signal stability issues for a distribution network and provides a number of case studies.
This paper proposes a simple methodology for placing two principal types of DG units - synchronous machine and induction machine with an objective of enhancing loadability of distribution system. The proposed methodology is based on the concept of reactive power margin. Buses have been ranked based on the reactive power margin and grouped as “strong” and “weak” buses for finding suitable location...
As the issues on market deregulation and renewable energy utilization are gaining significance, distributed generators are planned and installed in distribution systems to supply consumers directly. The distribution system is, therefore facing new challenges on its dynamic behavior with the addition of new dynamic devices. This paper investigates the small signal stability of renewable energy based...
Integration of renewable energy resources into an electricity distribution system has raised many challenges, including a number of stability issues. There are complex interactions among distributed generators due to their different manufacturing technologies, intermittent primary source of energy, and unregulated operations. Further, conventional shunt capacitors, which was used to support the voltage...
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