Abstract
This article addresses a controller for a full converter of variable-speed wind generators composed of permanent magnet synchronous generators. Conventionally, several proportional–integral (PI) controllers and a phase-locked loop (PLL) are used in the full converter for voltage-oriented control. The use of cascaded control loops with PI controllers degrades the control performance due to the windup of the integrators and complicates the tuning task. In this article, we propose a new full converter control scheme based on predictive control and a single P-controller in the $\alpha \beta$ stationary frame to replace the integrators and the PLL. The proposed controller can reduce the parameter tuning effort, is free from integrator windup, and is robust to symmetrical and asymmetrical voltage dips. The effectiveness of the proposed method is verified through simulations.
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