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The existing trend of consumption increase and population growth, combined with reduction of primary energy resources, determined adoption of energy efficiency increase measures to better cope with the existing necessities. The main characteristics of smart cities are starting to be defined such that to be applied to various cities with different population, sizes and level of technology development...
To accommodate the intermittent renewable energy sources in existing power systems, the expansion of networks, storage integration, back-up capacities and efforts for a flexible consumption are required, otherwise grid can be overloaded. The transmission expansion planning (TEP) has the purpose to ensure two important objectives: economic trade and engineering reliability. TEP can increase the competitiveness...
The microgrids can function as a single controllable system in a grid-connected or islanded operation mode. The transition from grid-connected mode to islanded mode can result in microgrid excess generation or demand, which must be spilled or curtailed. This paper proposes an optimization model for optimizing the microgrid operations accounting for distributed energy resources (stochastic generation...
An energy-informatic-centric smart campus represents a viable structure addressing to different groups of users, like: students, teachers/educators, researchers and technical administrators, using information and communications technology system interface for accessing various services and requiring real time information regarding university buildings energy consumption and production, air quality...
This paper analyzes the optimized operation of smart campus on the electricity market for maximizing his overall profit. The smart campus has the character of a virtual power plant with distributed energy resources with stochastic power and dispatchable classical generating units. The load is represented by the campus consumptions which can be shifted daily to accomplish the desired goals. This smart...
This paper analyzes the optimized operation of a virtual power plant owner on the day-ahead market for maximizing his overall profit. The virtual power plant is composed of distributed energy resources with variable produced power, energy storage systems, and dispatchable classical generating units. The intermittent character of wind and solar irradiation is addressed using the forecasted production...
The main goal of the wastewater treatment plant management consists in reducing the annual electricity costs by trying to supply the load demand using renewable energy sources (RES) (such as photovoltaic panels and biogas-based cogeneration engine). Based on real case measurements and carried on design process of the stochastic sources and cogeneration engine for covering the load demand, an optimization...
The existing distribution networks are growing with complexity more and more, due to the gradual increase of power demand and variation of loads. This paper describes several heuristic algorithms applied to the optimal configuration of loop distribution network. Configuration problems are too complicated and time consumed to be solved. These problems are basically large-scaled combinatorial optimization...
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