DENEGRI , Gio Battista

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This paper ivestigates on Power Quality improvements provided by Static Series Compensation in MV distribution networks. First of all, a simplified relationship between a fault in any position of a grid and a voltage sag experienced in another point of the grid itself is derived and its validity is verified by means of a detailed simulation...

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This paper deals with the use of large-size Photovoltaic (PV) units as providers of the reactive power compensation ancillary service. To do this, a suitable control scheme has been developed, which is based on an advanced control theory, called FeedBack Linearization (FBL), widely employed in the robotics field but still not so popular in...

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This study proposes a new control scheme to manage active and reactive power injections into the distribution grids provided by photovoltaic (PV) generating units. Such scheme is derived by resorting to the so-called 'feedback linearisation' theory, which relies on the central concept to algebraically transform non-linear systems dynamics into...

The paper presents an advanced control scheme for a PhotoVoltaic unit (PV) to suitably drive the injection of both active and reactive power into a MV radial distribution grid. Such algorithm allows a decoupled control of active and reactive power by properly adjusting the modulating signals of the PWM interface converter with the grid. A...

Multiterminal HVDC transmission systems require accurate modelling procedures within power flow and transient stability programs. AC and DC systems, as well as converter equipments are here represented to correctly simulate flow exchanges and perturbation effects. A step by step integration techinque is also introduced to meet the different...

The paper deals with the use of a Photovoltaic (PV) unit as a reactive power supplier. To do this, a suitable control scheme has been developed, which is based on an advanced control theory, called FeedBack Linearization (FBL), widely employed in the robotics field but still not so popular in power systems engineering. This allows to regulate...

The distorted waveforms of stator currents in converter fed sunchronous machines give rise to additional rotor losses. The knowledge of these losses in advance is important as far as both machine design and performance are concerned. In the paper, an approach to rotor losses evaluation is proposed based on the operational transfer functions of...

The paper discusses the evolution of the economic dispatching in a deregulated environment, and the following impact on the scheduling of power transactions. The benefit of additional degrees of freedom introduced by advanced compensation devices properly located, useful both for transmission planners and system operators, is then analysed

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PhotoVoltaic (PV) generation units are more and more used in order to have a local production cutting down the use of conventional fuels and providing reactive support to the supply. Such gridconnected systems fix mandatory constraints to power electronic converters to meet power quality specifications and draw the maximum power conversion from...

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