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Developers of distributed generator schemes often wish to increase the size of their generators, in order to make their projects more economically attractive. This work reported the coordination of the operation of independent distributed generators connected to the same circuit, so as to maximise the amount of electrical energy they deliver without exceeding the power limit of that circuit. An Aggregator,...
In Great Britain, increased wind generation, up to 34 GW, is planned. Offshore and onshore infrastructure reinforcements have been proposed, the inland reinforcement including series compensation (fixed capacitors), as discussed in the UK National Grid 2020 Vision. Interaction of series fixed capacitors with the quadrature boosters that are already installed in the GB transmission grid is assessed,...
Large capacity of wind generation is expected to be installed across Great Britain by 2020. Wind generation is variable, therefore fast ramping generation plants will be required to balance electricity demand. Gas-fired generation plants will most likely be used to compensate for wind generation variability because of their ramping capability and large installed generation capacity. This will cause...
The electromechanical transients during a deloading of a DFIG turbine and the Fault Ride Through (FRT) capability of a DFIG wind farm connected through HVDC transmission lines are discussed. The electromechanical oscillations during a deloading operation of a DFIG wind turbine generator are simulated using BLADED software. Then power reduction control during a fault was achieved by reducing the power...
A power oscillation damping controller for fully rated converter wind turbines was investigated. Small signal analysis and time domain simulations were used to investigate the performance of the fully rated converter wind turbine with a power oscillation damping controller when connected to a single bus representation of the large power system. A power oscillation damping controller for fully rated...
This paper describes a Virtual Power Plant, containing aggregated micro-generation sources and Electric Vehicles as mobile loads. A UK generic distribution network is used to build a VPP comprising several micro-grids. EV and micro-generation penetration levels are projected for the year 2030, based on previous studies. A multi time period optimization is performed to minimise carbon emissions and...
A future perspective micro-grid with a medium-term prediction for 2030 is described. The present state of intentional islanding is briefly reviewed. Distributed Generators (DGs) and Electric Vehicles (EVs) to sustain the local distribution system in the event of interruption of supply are considered. Projections regarding their availability are presented and different penetration scenarios are addressed...
The technical challenges related to the market penetration of electric vehicles (EVs) in low voltage (LV) distribution networks are addressed. Steady state voltage profile of LV networks under different EV aggregation levels and penetration scenarios is investigated. A UK generic LV distribution network model and load demand figures from the electricity association were used to simulate EV impact...
Technical challenges concerning microgrids are identified. Differentiation between grid-connected and islanded mode is made, while literature based solutions are presented. The concept of Virtual Grid is introduced and a microgrid model is used as part of a generic Low Voltage Distribution Network. PSCAD/EMTDC and IPSA+ models of the microgrid are utilised for the study of the steady state voltage...
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