Distribution automation: Applications to move from today's distribution system to tomorrow's smartgrid
In 2008 the Hydro-Québec Distribution roadmap was completed. The resulting roadmap is based on customers' expectations, Hydro-Québec's business drivers, available technologies, Hydro-Québec's context and electrical distribution industry trends. This paper will present the distribution roadmap and then will focus on application and technology strategy to move from today's distribution network to tomorrow's Smartgrid.
A New Synchronization Method for Distributed Power System
Abstract A new method is suggested for the synchronization of an inverter into a distributed power system (DPS) and/or of a DPS into the main grid with load-sharing process. The method achieves synchronization of incoming units without any interruption in power flow or any phase shift. In this process, there is no communication between the inverter units, and the incoming units take over system load in proportion with their power rating. The method is tested through Matlab-Simulink simulations on a system consisting of the main grid and 2 three-phase inverters. The simulation results which are related to synchronization of an inverter to DPS and a DPS to main grid show promising results.
Frequency selective surface design for blinds applications
In this paper, the reconfigurable blind structure with frequency selective surfaces(FSS) for the building applications are presented. Frequency transmission characteristics for different angles of the proposed blind-FSSs are investigated and verified through simulation and measurement. The simulation results show that we can implement the reconfigurable blind-FSS for multiband wireless applications. To verify the proposed paper, two kinds of blind-FSSs, crossed dipole FSS and circular ring FSS are fabricated and measurements are performed for different angles. The proposed structure in this paper which is very simple, can be easily applied to any planar surface for wireless security applications at low cost.