State-Space Modeling and Performance Analysis of Variable-Speed Wind Turbine Based on a Model Predictive Control Approach

This study presents an Optimized Wind Turbine Emulator (OWTE) based on a DC generator driven by a three-phase Induction Motor (IM). The IM speed is varied using an AC drive that converts fixed RMS voltage and frequency to variable ones due to v/f control. The frequency reference of the control was calculated through optimized equations of a wind turbine model for maximum power and torque. The overall system was simulated on Matlab/Simulink using a wind speed profile scenario. An experimental test bench controlled by a TMS320F28379D card was set up in the laboratory to confirm the effectiveness of the obtained simulation results.

Section: A Wind Turbine Modelmentioning

confidence: 99%

Optimized Wind Turbine Emulator based on an AC to DC Motor Generator Set

Aljarhizi

Nouaiti

Ibrahmi

et al. 2023

“…The DFIG electrical state can be modeled using the Park transform, as follows [8]: To obtain separate control over the stator reactive and active forces, the DFIG model is required to express all quantities. This is in accordance with the concept of stator flow direction and assumes that the stator resistance is small compared to the stator reactance of a DFIG of medium and high power volume, where the stator flux can be computed as [9]:…”

Section: Dfig Model With Stator Flux Orientationmentioning

confidence: 99%

Modeling and Comparison of Fuzzy-PI and Genetic Control Algorithms for Active and Reactive Power Flow between the Stator (DFIG) and the Grid

Guediri¹,

Touil²

2022

This paper performs a comparison between Fuzzy-PI regulators and Genetic Algorithm (GA) for controlling an active and reactive Doubly-Fed Induction Generator (DFIG) for providing power to the electrical grid. Theoretical analysis, modeling, and simulation studies are provided. Control strategies were developed for both active and reactive forces in order to optimize energy production. The performance of the two control strategies was examined and compared using benchmarks for durability and reference traceability. This paper studied a system consisting of a wind turbine operating at variable wind speed and a two-feed asynchronous machine (DFIG) connected to the grid by the stator and fed by a transducer at the side of the rotor. The conductors were separately controlled for active and reactive power flow between the stator (DFIG) and the grid, which was achieved in this article using conventional PI and fuzzy logic controllers. The considered controllers generated reference voltages for the rotor to ensure that the active and reactive power reached the required reference values. This was done in order to ensure effective tracking of the optimum operating point and the maximum output of electrical power. System modeling and simulation were examined in Matlab/Simulink. Dynamic analysis of the system was performed under variable wind speed.

“…The state-space representation is used to represent the equation of motion for the building structure [24][25][26].…”

Section: Mathematical Formulationmentioning

confidence: 99%

A Comparative Study on Hybrid Vibration Control of Base-isolated Buildings Equipped with ATMD

Jaballah

Harzallah²,

Nail³

2022

The vibration control for building structures using hybrid control (base isolators BI and Active Tuned Mass Dampers-ATMDs) has attracted the attention of researchers. This paper establishes a hybrid vibration control system of structure and compares structural response and active tuned mass damper performance among the structure using two different control algorithms (PID and LQR). Through simulation research, from the comparative analysis of performance indexes of structural response and ATMD performance, it is concluded that the LQR controller outperforms the PID controller in reducing the structural responses.