Abstract
The purpose of this study is to design a real-time current predictive control for a wind energy conversion system (WECS) using a doubly-fed induction generator (DFIG). A wind emulator and a test bench for assessing control strategies were conceptualized. The DSPACE DS1104 board served as the foundation for the design of a wind emulation system. While power is indirectly regulated via currents, the latter is controlled directly by current predictive control. Using discrete time, the control suggests the appropriate voltages to the converter for each sample period to attain the specified set points and control the power. The field-oriented control is employed to ensure that the two components, axes d and q, are decoupled. The present predictive control was established to regulate a DFIG’s active and reactive capabilities. To begin, a thorough examination of the WECS is discussed. Following that, a comprehensive description of predictive control laws based on reference frame orientation is offered. As a result, a simulation was done using Matlab/Simulink environments to assess the performance and resilience of the proposed control model. The predictive current control was then experimentally validated on a test bench to demonstrate its efficacy. The observed results reveal an astonishing correlation between simulations and experiments.
Highlights
The doubly-fed induction generator (DFIG) is one of the most widely used wind energy conversion system (WECS) technologies
The main contribution of this paper is to develop a predictive current control to calculate the trajectory of a future variable that is adjusted to maximize the output’s future
To assess the impact of the control on the system, evaluate the active and reactive power controls’ efficiency and robustness, and verify the quality of the energy produced, the wind power system was subjected to a series of simulation tests under MATLAB/SIMULINK software
Summary
The doubly-fed induction generator (DFIG) is one of the most widely used wind energy conversion system (WECS) technologies. The DFIG can operate below the synchronous speed (hypo-synchronous mode) and above the synchronous speed (hyper-synchronous mode), allowing an operational speed range of approximately 30% around the synchronous speed. In this regard, the advancement of power electronics is critical for developing future sustainable energy scenarios as it enables the efficient and flexible conversion and conditioning of electrical energy [3]. Power converters have extensively used traditional linear control approaches; numerous other control strategies have been proposed and successfully tested in the literature; each method has its own set of advantages and disadvantages
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