Steady State Modeling and Performance Analysis of a Wind Turbine-Based Doubly Fed Induction Generator System with Rotor Control

Abstract

The utilization of renewable energy sources aids in the economic development of a country. Among the various renewable energy sources, wind energy is more effective for electricity production. The doubly fed induction generator is an extensively known wind turbine generator for its partially rated power converters and dynamic performance. The doubly fed induction generator assists the wind turbine to function with a wide speed range. Hence, the steady-state performance analysis of a doubly fed induction generator helps enable it to operate efficiently at a specific wind turbine speed. In this paper, a 2 MW variable speed pitch regulated doubly fed induction generator with a speed range of 900—2000 rpm was opted for steady-state analysis. This was followed by the design and modelling of a doubly fed induction generator in Matlab/Simulink environment, and the analyses were performed using mathematical equations computed via Matlab coding. The steady-state magnitudes were calculated with rotor magnetization idr = 0. The closed-loop stator flux-oriented vector control is applied to the rotor side converter for controlling the designed doubly fed induction generator model. The simulation results were compared with computational values to establish a workable model with less than 10% error. The simulation model can be used for predicting the performance of the machine, fault analysis, and validation of existing DFIG at a steady state.

RETRACTED: Optimization of doubly-fed induction generator (DFIG) based wind turbine to achieve maximum power generation with imperialist competitive algorithm (ICA)

“…The q axis stator current can be obtained by substituting the d axis stator current in Equation 18, so the stator component current can be obtained by equations 22 and 23 14,33 :…”

RETRACTED: Enhancing the low-voltage ride-through capability of a wind turbine double-fed induction generator using hybrid model contains an adaptive neurofuzzy inference system controller and a crowbar circuit.

“…Consequently, it is necessary to insert protection circuits and/or use new control techniques to enhance LVRT capability. The normal operation of DFIG is explained in details in reference [8], which will be helpful to understand how to operate DFIG in efficient way at a specified operating point. When a grid containing DFIG is subjected to voltage dips, since DFIG is mainly inductive circuit, there will be a transient current and voltage component that are stationary with the stator (i.e.…”

RETRACTED: Enhancing the low-voltage ride-through capability of a wind turbine double- fed induction generator using ANFIS controller and a crowbar circuit

“…The normal operation of DFIG is explained in details in reference [8], which will be helpful to understand how to operate DFIG in efficient way at a specified operating point. When a grid containing DFIG is subjected to voltage dips, since DFIG is mainly inductive circuit, there will be a transient current and voltage component that are stationary with the stator (i.e.…”