This Technical Note presents an overview of the adverse effects on connected equipment of transient overvoltages that can occur on the electricity distribution network, and how to provide protection against them. Integral Energy, your local Distribution Network Service Provider or the Integral Energy Power Quality and Reliability Centre can give you additional advice if you have particular conc...

This paper presents a new simulation method for performing equipment sensitivity study during power quality events. Power quality waveform events such as voltage sags, swells, transients, etc. may cause sensitive loads to trip or mis-operate. For better coordination between the system and the equipment, it is necessary that the effects of specific events on the equipment behavior be thoroughly ...

— This paper summarizes the main problems and solutions of power quality in Microgrids, distributed energy storage systems, and AC/DC hybrid Microgrids. First, power quality enhancement of grid-interactive Microgrids is presented. Then, cooperative control for enhance voltage harmonics and unbalances in Microgrids is reviewed. After, the use of static synchronous compensator (STATCOM) in grid-c...

This paper presents voltage control scheme by using directly voltage-controlled distributedenergy resource units (VC-DERs) of an islanded microgrid to provide overcurrent,voltage sag and harmonics protection. The overcurrent protection scheme detects the fault, limits the output current magnitude of the DER unit, and restores the microgrid to its normal operatingconditions subsequent to fault c...

In this paper, the initial development stages of a power quality monitoring instrument are described. The paper is focused on new algorithms developed for real-time detection and classification of power quality disturbances. The developed algorithms aim to cover a wide range of disturbances that may occur in a power system and that may differ in their characteristics (e.g. magnitude or duration...