Microgrid Protection Using Low-Cost Communication Systems

Design and Development of a Communication-Assisted Microgrid Protection System

DC Microgrid Protection in the Presence of the Photovoltaic and Energy Storage Systems

In recent years, most of the loads and distributed generations are connected to the AC grid through the power electronic converters. Using the DC grid beside the AC grid can reduce the conversion stages and power losses. Protection of the DC grids is a challenging issue because of the new structures of DC grids and fast transients of the DC faults. This paper studies the protection of the low v...

Low-cost embedded systems design using Statecharts

The main goal of the work here presented is to support the whole development cycle of low-cost embedded systems modelled by Statecharts, from specification to implementation. Specific goals include automatically verification of proprieties and generation of executable code for low cost hardware platforms, starting with the Statechart high-level specification of the reactive system. Micro-contro...

Microgrid protection using system observer and minimum measurement set

Microgrids work in two modes, grid connected and islanded. Short circuit levels in islanded mode tend to be small compared to those in grid-connected mode. Moreover, power flows in microgrids are not always unidirectional. For these reasons, it is difficult to protect microgrids using relaying strategies traditionally used in distribution systems. In this paper, a new technique is presented whi...

Very Low-Cost Sensing and Communication Using Bidirectional LEDs

A novel microprocessor interface circuit is described which can alternately emit and detect light using only an LED, two digital I/O pins and a single current limiting resistor. This technique is first applied to create a smart illumination system that uses a single LED as both light source and sensor. We then present several devices that use an LED as a generic wireless serial data port. An im...