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This paper proposes a novel comprehensive operation and self-healing strategy for a distribution system with both dispatchable and nondispatchable distributed generators (DGs). In the normal operation mode, the control objective of the system is to minimize the operation costs and maximize the revenues. A rolling-horizon optimization method is used to schedule the outputs of dispatchable DGs based...
This paper presents a complementary distributed generation (DG) with wind and photovoltaic powers. And it gives a detailed analysis of the effects for the various states of this DG to the island's voltage and frequency, and presents an optimization strategy called under-frequency load shedding in the island to increase the accuracy of model. On this basis, it builds a reliability analysis and calculation...
As renewable energy penetrates the utility market, the electricity industry is undergoing a paradigm shift that will change the industry to generate electricity using distributed generation systems. Consequently, there are new opportunities for enhancing the utility company's power quality and network reliability, as well as increasing their level of automation. This paper surveys the most recent...
Based on the simplification equivalence network, a new reliability evaluation method using the Monte Carlo time sequential simulation for the distribution system with distributed generations (DGs) is presented in this paper. By the zone element failure effect table calculated at the simplification network, the impact of the DGs' stochastic power output, running/failure statuses of the devices and...
This Paper presents a model for optimal locating and sizing of Distributed Generation (DG) for congestion management in deregulated electricity market. For reducing the solution space a priority list of candidate buses is formed and then optimal placement and sizing of DG in potential buses is discussed. In order to incorporate stochastic nature of power system in this study, Monte-Carlo method is...
This paper presents a simulative technique to evaluate the reliability of distribution system including distributed generations (DGs) and energy storage system, which compose microgrids with load. The introduction of energy storage system will play an important role on the stable of power supply in microgrids where renewable energy DGs are connected. Stochastic characteristic of photovoltaic and wind...
The potential to improve distribution system reliability is a primary motivation behind the development and deployment of microgrids. Previous studies have illustrated substantial reliability benefits of dispatchable distributed energy resources (DER). However, more analysis and new evaluation methodologies are needed for microgrids dominated by limited and stochastic distributed generation (SDG)...
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