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In this paper, a new approach for modeling and control of reactive power in microgrid is presented. This structure utilizes wind turbine driven doubly fed induction generator (DFIG). Firstly, the dynamics of voltage and reactive power of DFIG and synchronous generator are represented via a model. After that, a control system is designed for the microgrid reactive power. This control strategy is used...
This paper proposes a simple technique to get maximum power of wind energy conversion system (WECS) without using sensors for wind and rotor speed of the permanent magnet synchronous generator (PMSG). It uses the measurements of DC current and DC voltage to obtain maximum power point tracking (MPPT) by controlling the duty cycle of the DC-DC boost converter switch. Moreover, a PI control is employed...
In the case of operating in a weak grid system, when wind power becomes a significant portion of the power system or even the sole energy source, the wind power generator and its converter are expected to help maintain the grid voltage amplitude and frequency, operating like the conventional large synchronous generator (SG). The grid-side converter needs to work as a voltage source to regulate the...
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