Eco-routing is a vehicle navigation method that aims to minimize fuel or energy consumption for given trip. It based on hypothesis we can trade extra travel time lower consumption. While the was experimentally verified design of would fully exploit its potential proves challenging. Current solutions hinge assumption spent any road does not change in time. We challenge validity this by studying performance such methods detailed second-by-second simulation pronounces time-dependencies. This...

The presence of power generating plants owned by prosumers may lead to unbalanced bidirectional energy flows at the points connection relevant distribution systems. This will impact future communities, where appropriate metering within community is a crucial issue for billing purposes. paper shows that current metrics active measurement and registration three-phase revenue meters fail fairly charge their use system as an inherent phase-to-phase balancer. On other hand, it proven here...

Bidirectional active energy flows are expected to increase in electrical distribution systems worldwide as a result of future incentives exchange within local communities.Distributed generation (e.g., solar rooftop photovoltaic systems) combination with full-cycle pulse-width regulated loads thermal appliances or some diverters), battery storage systems, regenerative will periodic changes the flow direction.If regulation periods close aggregation time window smart revenue meters (RMs),...

We show that two-terminal multijunction cells interconnected by tunnel junctions are fairly immune to individual local shunts, thanks the shunt quenching. Interestingly, they may still suffer from global shunts. revise paradigm of a cell as simple serial connection component cells. This remains valid only for with laterally conductive interlayers. Instead, new equivalent circuit is proposed and verified measurement simulations. As main approach, selective illumination applied voltage...

A representation of features is a very important parameter when creating machine learning models. The main goal this paper to introduce way compare feature space transformations that change representation. It particularly deals with comparison method uses genetic programming based on different fitness functions for transformation space. function part the algorithm because it defines required properties new Several possible are described and compared in paper. process also introduced selected...

In the recent years, distributed generation modules are penetrating into low voltage and medium distribution system. systems, however, more emphasis is on coordination of control due to impact reactive power over transformer high systems. Throughout paper, mechanisms described in detail examples dispatch algorithms reveal potential delivery system as a consequence sharing between individual generating modules.

The advancement in phasor measurement technology brings new opportunities to improve the performance of applications that use wide area measurements. Most these rely on simulation studies results. As a result, modelling and testing PMUs are high interest among electrical engineers designers. In this paper, PMU model based discrete Fourier transform is presented examined according compliance IEEE Std. C37.118.1 −2011. implemented PSCAD library. results showed has many advantages existing FFT...

This paper deals with testing of photovoltaic inverters frequency response using a test facility located in REsLAB at the Department Electrical Power Engineering, Brno University Technology. It includes practical experience site, procedure for verification and description tested devices. Overall, six devices were tested. The presented results measurements are graphically processed subsequently compliance relevant standards national grid code is evaluated. conclusion contains summarization...

Distributed generation in combination with switching adaptive loads providing optimized energy management the prosumers' installations results bidirectional active flow. If changes are frequent or even periodical period close to aggregation time window of standard revenue meters, deviation from really correct readings export and import registers might be significant. Subsequently, concepts allocating costs distribution system operation network users fail. The paper presents an overview...

Presence of a power generating plant in three phase customers' installation associated with prosumers may lead to unbalanced bidirectional energy flows at point connection into relevant distribution system. This study shows that current metrics measurement and registration revenue meters fail fair charging for the system usage as an inherent phase-to-phase balancer. Alternatively, positive sequence power/ based metric is tested proposed be employed. The comparative performed on...

This paper deals with the non-standard behavior of a hybrid inverter equipped external measurement, which was observed during one many tests performed in ResLab laboratory at Brno University Technology. It focuses on control processes intend to maintain power flow balance within system consisting photovoltaic source, battery storage and load. The contains theoretical background, description configuration together equipment used for test purposes, simulated scenario, measurements results its...

The deployment of active energy diverters in prosumers' installations leads to bidirectional flow between phases over the revenue meter at point connection with upstream three-phase distribution system. This paper presents three different control algorithms for distributing power into phases, which are implemented layer, and compares them terms registered standard meter's import export registers. Additionally, innovative method sorting meters, based on positive sequence power, is assumed. a...

The paper deals with a concept of power flow controller which regulates active at point connection by pulse-width modulated switching resistive load in installations small scale generation and non-simultaneously fitted consumption. prototype employs commercially available DC solid-state relay the design describes limiting factors its operation from quality reliability view. performance is compared to other commercial solutions, utilizing AC relays equipped zero-cross control strategy, terms...

The article deals with modelling of traction vehicles being operated in the Czech Republic 25 kV/50 Hz power system respect to their consumption quality and consumption.Models typical locomotive categories, sorted according electrical equipment quality, were created PSCAD .The models are able simulate locomotives dynamical operation up detail quality.

The paper presents an analysis of active and reactive power control in AC 25 kV 50 Hz railway traction system consisting both static frequency converter feeder conventional single-phase transformer feeder.Limits sharing between the feeders by means output voltage is analyzed and, additionally, strategies aiming to increase availability converters for services distribution proposed.

The main objective of the paper is to compare selected modes voltage control in medium (MV) distribution system (DS) by means reactive power injection provided distributed generating plants (DPGPs).At first, rationale for rise compensation and grids made order select three DPGP.The are described terms ability autonomous operation suitability their use MV DS examined using parametric simulation.