Analytical expressions for characterising voltage dips and phase‐angle jumps in electricity networks

Regime Jumps in Electricity Prices

Electricity prices are known to be very volatile and subject to frequent jumps due to system breakdown, demand shocks, and inelastic supply. As many international electricity markets are in some state of deregulation, more and more participants in these markets are exposed to these stylised facts. Appropriate pricing, portfolio, and risk management models should incorporate these facts. Authors...

Analytical Expressions for Positioning Uncertainty Propagation in Networks of Robots

In this paper we present an analysis of the positioning uncertainty increase rate for a group of mobile robots. The simplified version for a group of N robots moving along one dimension is considered. The one dimension restriction permits us to extract an exact expression for the accumulation of positioning uncertainty in a group of robots equipped with proprioceptive (odometric in this case) a...

Virtual Instruments for Identification and Analysis of Voltage Dips

Power quality is a term often used today for describing any event manifested in voltage, current or frequency variation that can result in malfunction of end-user equipment. During voltage dips the supply voltage drops to a lower value for a short duration, and a lot of modern technologic equipment is very sensitive to this kind of perturbations. A voltage dip means that the required energy is ...

Inferring the Correlation Between Lightning Events and Voltage Dips in Distribution Networks

To appropriately infer the correlation between lightning events and flashovers/voltage dips on real distribution networks, data coming from lightning location systems are certainly needed, but need to complemented on the one hand by data coming from distributed measurement systems able to record both protection manoeuvres and lightning-originated transients, and on the other hand by accurate ca...

Power Quality in Future Low Voltage Electricity Networks