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Time-varying renewable energy generation can result in serious under-/over-voltage conditions in future distribution grids. Augmenting conventional utility-owned voltage regulating equipment with the reactive power capabilities of distributed generation units is a viable solution. Local control options attaining global voltage regulation optimality at fast convergence rates is the goal here. In this...
Distribution grids undergo a transformative change with the emergence of renewables, demand-response programs, and electric vehicles. Fluctuations in active power injections can dramatically affect voltage magnitudes across the grid. The power electronics of distributed generation (DG) units can provide an effective means of the much needed voltage regulation. On the other hand, the scalability and...
DC collection and transmission is a new trend for large scale offshore wind farms. In this paper, the output voltage of the wind farm is promoted by series connecting the wind turbines. Then, the wind power is collected by shunt connecting the wind turbine group. VSC-HVDC is a traditional method to connect offshore wind farm to onshore AC grid. However, big voltage variable ratio dv/dt is the main...
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