Abstract Distributed energy resources yield power injections in the distribution networks. In the distribution networks, the important elements are location, sizing, and operation contribute to power systems loss reduction, improved voltage profile, increased reliability and deferral of system upgrades. Many systems are available for complex combinatorial and nonlinear problems of distributed generation for optimal placement. These systems produce near-optimal results with... Distributed energy resources yield power injections in the distribution networks. In the distribution networks, the important elements are location, sizing, and operation contribute to power systems loss reduction, improved voltage profile, increased reliability and deferral of system upgrades. Many systems are available for complex combinatorial and nonlinear problems of distributed generation for optimal placement. These systems produce near-optimal results with the burden on pre-processing procedures from mathematical modelling. In this work, we presented another possible model to solve the issue. We have advocated problem shaping, formulation and solution utilizing good benefits to solve. We experimented with the proposed solution on a 69-bus distribution system, resulting in suitable parameters. We found that this system supersedes the existing ones as it is simple. Read More Read Less

Abstract This work has outlined the model for the optimal placement of storage devices in low-voltage grids. The CIGRE low voltage benchmark is used as a case for fixing the optimal location and storage sizing devices. The purpose is to increase the renewable energy sources in the local area network with all grid problems. The identified problem is a mixedinteger quadratic... This work has outlined the model for the optimal placement of storage devices in low-voltage grids. The CIGRE low voltage benchmark is used as a case for fixing the optimal location and storage sizing devices. The purpose is to increase the renewable energy sources in the local area network with all grid problems. The identified problem is a mixedinteger quadratic program with an objective function equal to total annual costs. The costs include annualized investments in storage devices, operation and maintenance costs and electricity cost-electricity and network losses. This work considered the variations in energy production and consumption by using daily variation curves for each month of the year. The experimental procedures prove that the storage devices, when placed, help increase the use of renewable energy sources, besides bringing the cost down. Read More Read Less

Abstract The fuzzy logic for network reliability estimation is required for its simplicity, enabling its use in complex systems and the creation of models. We proposed a new power network reliability estimation model using fuzzy logic considering the daily power load. Moreover, we have outlined the case study of two parallel transformers. Using different unavailability issues, we have measured the network... The fuzzy logic for network reliability estimation is required for its simplicity, enabling its use in complex systems and the creation of models. We proposed a new power network reliability estimation model using fuzzy logic considering the daily power load. Moreover, we have outlined the case study of two parallel transformers. Using different unavailability issues, we have measured the network reliability of a system with many stations and network components. Read More Read Less