INVERNIZZI , Marco

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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...

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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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...

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...

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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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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

The aim of the present article is to propose an innovative simplified approach for the evaluation of active and reactive power losses for large photovoltaic plants. This methodology can be then employed in the design phase of large photovoltaic plants in order to have a preliminary evaluation of the system efficiency and of the capability of...

Abstract This paper proposes a methodology for the equivalent modeling of large photovoltaic power plants at the Point of Interconnection with the transmission/distribution network. The interest in such a methodology lays in the fact that recently Transmission/Distribution System Operators (TSOs/DSOs) have extended the requirements for the...

This paper proposes an advanced nonlinear control algorithm to manage active power and voltage provided by a synchronous generator. The algorithm is based on the so-called FeedBack Linearization (FBL) theory, which relies on the central concept to algebraically transform nonlinear systems dynamics into fully or partly linear ones, so that...

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...