The paper describes a battery storage unit for small DC micro-grids based on a multi-cell topology. The system consists of a series arrangement of lead-acid type battery cells where each cell is equipped with an individual DC-DC buck converter located directly at the battery terminals. For minimizing the output ripple the cells are operated in interleaved PWM mode. With this the cell-to-cell wi...

This paper focuses on optimal operation schedule of a Microgrid that is interconnected to the power grid. We develop a mathematical model to compute the optimal operation schedule that embodies demand response. Wind turbine, photovoltaic, fuel cell and micro turbine are considered as the only sources along with energy storage system (ESS) for supplying electricity to the micro-grid. In grid-con...

This paper presents a comparison of optimization methods applied to islanded micro-grids including renewable energy sources, diesel generators and battery energy storage systems. In particular, a comparative analysis between an optimization model based on linear programming and a model based on mixed integer programming has been carried out. The general formulation of these models has been pres...

Achieving a sustainable level of energy production and consumption is one of the major challenges in our nowadays society. This paper contributes to the objective of increasing energy efficiency by introducing a market mechanism that facilitates the efficient matching of energy (i.e. electricity and heat) demand and supply in Micro Energy Grids. More precisely we propose a combinatorial double ...

Recognizing the benefit that one can get by exploiting the Micro-Grid (MG) concept, as an active part of the Low Voltage (LV) network comprising several micro-generation (μG) sources, controllable loads and storage devices, is a key issue towards the MG concept deployment. Furthermore, the MG concept is extended into Multi-Micro Grid (MMG) concept, identifying the benefits that can be obtained ...

Energy Recovery Battery Testing Systems (ERBTS) plays an important role in battery manufacture. The conventional ERBTS configuration contains a fundamental transformer, and a bidirectional Direct Current (DC)–DC and Alternating Current (AC)–DC converter. All ERBTS are connected in parallel, thus constituting a special and complicated AC micro-grid system. Aiming at addressing their low energy r...

The importance of renewable energies and energy storage system forming a micro-grid integrating it to the electrical grid is widely spread. A supervisory plays crucial role in controlling, managing, planning micro-grid. This paper demonstrates development new custom based on Internet Things (IoT), creating an information sharing environment. proposed open-source tools for micro-grid, composed p...

Micro-Channel Heat Sink is a heat exchanger which is used to control the temperature of electronic devices with high heat flux. A comprehensive thermal model for the micro-channels should include three dimensional conduction analysis in the solid body together with three dimensional developing fluid flow as well as heat transfer analyses in the fluid section. This paper reports on a research ...

Integrating large-scale micro-generation in distribution grids is challenging for distribution grid operators, particularly when renewable energy sources (RES) and micro-cogeneration are involved. In this paper we contend that recent developments in multiagent decision making under uncertainty can positively contribute to safe, efficient and costeffective operation of future distribution grids.