A campus based smart micro grid model that combined power and heat is presented. In this study, optimal scheduling of distributed generations inside these smart micro grids is determined based on demand forecasting, solar power forecasting and wind power forecasting by artificial neural network (ANN). The proposed model is then evaluated through economical efficiency, environment efficiency and...

National Grid, UK is currently under the process of replacing the conventional high impedance (HiZ) busbar protection systems in their substations with modern low impedance (LI) numeric busbar protection schemes. They are also planning to deploy the same schemes in their new substations and substation extensions. This calls for an extensive changeover from the conventional operation, protection...

A switch-mode rectifier (SMR) can provide adjustable and well-regulated DC output voltage from the available AC source with good line drawn power quality. Depending on the input/output voltage transfer characteristics, the schematics, the operation quadrant, and control, SMRs possess many classifications and application. Typical potential application examples include grid powered motor drives, ...

This paper presents a mechanism for active power sharing among multiple dispatchable and distributed generation units within micro grid comprising one or interconnections with the main grid. Ideally, should act as constant load voltage source when connected to However, achieve ideal operation, natural variations intermittency of renewable energy sources microgrid need be adequately timely compe...

This paper implements models of two important distributed generators. The rst developed model describes and simulates the dynamic performance of a Single Shaft Micro Turbine, while the second model simulates the dynamic behavior of a Solid Oxide Fuel cell (SOFC). Increasing and reducing the power produced by these micro sources is also simulated. The two developed models can test the dynamic re...

Double-diffusion model is used to simulate slightly compressible fluid flow in periodic porous media as a macro-model in place of the original highly heterogeneous micro-model. In this paper, we formulate an adaptive two-grid numerical finite element discretization of the double-diffusion system and perform a comparison between the microand macro-model. Our numerical results show that the micro...

The aim of this paper is to provide a concept for an information modeling method for micro grids, which will be used as building blocks for a smart grid. The data modeling method utilized is based primarily upon the IEC 61850 communication protocol standard. The article points out several useful features of the IEC 61850 communication protocol, the virtual information model and the communicatio...

This paper presents the simulation technique for simulating a micro grid (MG) and the analysis results of the operating characteristics of a MG with a hybrid power source. The hybrid power source in this research included both a diesel engine generation set and a wind generation system. The simulation tool adopted by this research is the professional software, Simulink. The simulation results a...

This paper covers the development of a new smart distributed DC Micro-grid system, especially in rural areas in order to utilize energy available from distributed, renewable generators. The proposed DC micro-grid system is hybrid in nature and it utilizes the proper use of renewable as well as fossil fuel resources. It is normally fitted for residential and small commercial applications as well...

Maximum power point tracking (MPPT) of a photo voltaic system with different temperature and insolation conditions used for Micro grids can be explained in this paper. The micro grid conception permits small distributed energy resources (DERs) to act during a coordinated manner to produce a necessary quantity of active power and supportive service once needed. This paper proposes an approach of...