The smart grid refers to next generation power grids, with multi-directional flows of electricity and information to make a wide distributed network. Through smart grid, the power system becomes smart by communicating, sensing, control and applying intelligence. For ideal system, the smart grid technologies are more compatible to permits many functions which can optimize with the combination of...

Adaptive grid generation is an active research topic for numerical solution of differential equations. In this paper, we propose a variational method which generates transformations with prescribed Jacobian determinant and curl. Then we use this transformation to achieve adaptive grid generation task.

This chapter focuses on three computer-aided geometric design (CAGD) techniques that are often needed to \prepare" a complex geometry for grid generation. Standard grid generation methods, as discussed in [George '91], [Knupp & Steinberg '93], and [Thompson et al. '85], assume that parametric surfaces are well parametrized and free of undesired discontinuities. We describe CAGD techniques that ...

The recently observed increase in distributed generation based on renewable energy sources (DG/RES) in the European electricity system is most likely to continue or even increase its growth rate in the future. Distributed Generation (DG) as one core focus of this paper is mainly meant to be connected to distribution grid areas. Thus, scenarios for DG/RES development on distribution level are de...

In this position paper, we propose a new generation workflow system for grid services. We observe that grid computing has become an increasingly important application domain in computer science. Grid services — a new technology based on web services — are expected to become the de facto standard for grid computing. Similar to web services, an effective mechanism is needed for the composition of...

This paper describes a new fast hybrid adaptive grid generation technique for arbitrary twodimensional domains. This technique is based on a Cartesian background grid with square elements and quadtree decomposition. A new algorithm is introduced for the distribution of boundary points based on the curvature of the domain boundaries. The quadtree decomposition is governed either by the distribut...

abstract: in this paper a control scheme for grid-connected operation mode and the island state of distributed generation is presented. in normal conditions, every inverter dg system in micro-grids to supply a preset power, normally operate in a constant current control mode. when micro-grids removed from the network, dg inverter of each system must recognize the island and change position to v...

In order to respond to these challenges, many U.S. utilities have been investing in smart grid technologies for communications, monitoring, computation and control purposes. Among its capabilities, the smart grid enables better outage management, grid selfhealing, demand response, dynamic pricing, preventive maintenance of grid assets, integration of distributed generation resources, and two-wa...