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In this paper, we present a performance study of a variable pitch wind turbine with a Permanent Magnet Synchronous Generator (PMSG). The control strategy used Maximum Power Point Tracking (MPPT) below the rated speed, which corresponds to low and high wind speed, and the maximum energy can be captured from the wind. The Pitch angle control which is the most common means for adjusting the aerodynamic...
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...
This paper proposes a control strategy for variable speed wind energy conversion system (WECS), incorporating maximum power point tracking (MPPT) algorithm, using direct driven permanent magnet synchronous generator (PMSG). The generator is operated in the speed control mode below the base speed by controlling the terminal voltage using three phase front-end active-rectifier feeding power to the DC...
Wind turbine systems have strong nonlinear multivariable with many uncertain factors and disturbances. Making use of the sliding mode variable structure control strategy, letting the system capability as the sliding mode function. The system of loop-speed-control and loop-position-control are designed base on the sliding mode variable structure control, which can make the system quick, steady and...
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