This paper proposes a robust finite control set for doubly-fed induction generator power control. In this way, the proposed has two components of predicted rotor voltage. The first term calculates voltage considering current references and second is designed mistakes due to parameters' estimation. mentioned errors variations were modeled as changes. Hence, controller parameter references. So that, minimized cost function selects vector be supplied machine. influence estimation on...

This paper groups basic information about the control of doubly-fed induction generators (DFIG) for wind power generation. The DFIG stator is connected directly to grid and its rotor by a double converter called back-to-back. To carry out generated power, are needed some calculations with complexity equivalent machine model, making it difficult obtain controllers' initial parameters part system. In this sense, has presented proposal design gains proportional-integral controller (PI) used in...

In wind energy systems, doubly-fed induction generator is commonly used. The grid requirements for DFIG operation in an occurrence of low voltage ride-through can damage or destroy the converter and its help robustness power systems by injection reactive power. Thus, this paper proposed a deadbeat direct control during (LVRT). controller was designed using model it allows active also sag. state variables are power, inputs rotor vector. has simple implementation fast dynamic response....

This paper presents a finite control set applied to the direct power for doubly fed induction generator under normal and voltage sag operation. The controller is designed by using discretized equations of DFIG. In this case, was modeled as function reactive active power, rotor vector, flux variations. way, future behavior predicted error, variations, minimization cost that allows us select optimal vector. Hence, proposed will attend references results obtained in an experimental test bench...

Two control schemes for active and reactive power of a double-fed induction generator with the stator connected direct to constant frequency, three phase grid are described. First quadrature rotor current components generated based on mathematical model machine. The second scheme used PI controller generate reference components. principles both described in detail this paper strong experimental approach. A complete simulation is developed several studies performed test its under different...

This paper proposes a state feedback controller for doubly-fed induction generators at variable speed wind. The uses pole placement technique, stator flux orientation, and rotor current vector loops. None conventional PI is used on the control. Its algorithm calculates voltage to be supplied certificate that active reactive power follow their desired reference values. Experimental results obtained in hardware setup are carried out validate operation.

In this article, a direct power control strategy for doubly fed induction generation is presented. The variables - d-axis and q-axis rotor voltages are determined through system that consists of neuro-fuzzy inference Takagi-Sugeno fuzzy logic controller first order. input the speed, active reactive references, their respective errors. Constant converter switching frequency achieved, what eases design ac harmonic filter loss reduction converter. Another features current-sensorless operation,...

One issue of using doubly fed induction generator operating in parallel with the grid is vulnerability power-electronic converter when voltage sags supply terminals occur. The sudden reductions at produce high current transients stator and rotor windings. This transient can exceed rotor-side limits and, consequently, dc-link limit. In order to improve dynamic performance this condition, a direct power control proposed active reactive power. strategy based on equation which does not ignore...

In this paper is proposed the application of model reference adaptive system (MRAS) observer for rotor position estimation controlling doubly fed induction generator (DFIG), operating in balanced and unbalanced voltage sags. The required transformation variables. A MRAS based on current models performs calculus. To analyze validate observer, stator power controlled from PI controllers. Experimental tests are performed analyzed same under sag.

This paper proposes a Wind Power Generation System (WPGS) that operates in Smart Grid (SG) environment by means of Line Communication (PLC) technology. The WPGS uses Doubly Fed Induction Generator (DFIG) controlled Direct Torque Control (DTC) technique and whose power references are transmitted remotely via cables with G3-PLC complete system (DFIG, controller PLC) was implemented an experimental test bench validated the satisfactory results practical tests.

In this paper is presented an off-line trained artificial neural network controller with multilayer perceptron topology. It by a genetic algorithm and applied to the direct power control of doubly-fed induction generator under stator voltage dip. This dispenses use any other in system, our knowledge it not found technical publications that report controllers for control. Digital simulation experimental tests, performed 2.25 kW generator, have shown good performance proposed controller.

This paper proposes a decoupled control of active and reactive power for doubly-fed induction generators (DFIG) through the rotor currents using sliding mode (SMC). In order to decouple generated, stator-flux-oriented vector is applied. The strategy based on two modes plus PI controllers whose main advantage easy implementation. Simulation experimental results are presented validate proposed scheme 2 kW DFIG during stator steps speed variation. During transient operation it checked good...

This article presents the basic information about control of induction generators with wound rotor for wind generation. Its aim is to assist new researchers in their first steps, making them suitable development technology either through modifications or by adding techniques driving and control. The GIRB's stator connected directly power grid its via a bi-directional converter called back-to-back. way, this proposal design gains proportional-integral controllers (PI) used vector powers...

This work introduces a new method for computing the angular position of voltage grid—based on finite set angles—in condition failures in distribution systems, as symmetrical and asymmetric sags, unbalance, harmonic distortions, frequency changes. is inspired model predictive control principles. In this way, proposal employs One-Cycle Fourier filter (OCF) to estimate positive sequence vector into stationary αβ-frame. The voltages extracted from then handled by an algorithm that implemented...

This paper proposes a Takagi-Sugeno neurofuzzy inference system for direct torque and stator reactive power control applied to doubly fed induction motor (DFIM). The variables (d-axis q-axis rotor voltages) are determined through composed by neuro-fuzzy first order fuzzy logic controller. Experimental results presented validate the controller operation variable speed under no-load load conditions variation condition. For this last validation, PI is used speed, thereby its output manipulate...

A Takagi-Sugeno neuro-fuzzy inference system for direct power control of a doubly fed induction generator is presented in this paper. The variables - d-axis and q-axis rotor voltages are determined by that consists first order fuzzy logic controller. To validate the proposed strategy, experimental tests made DFIG operating speed slightly less than synchronous speed. operation with abrupt linear changes stator under variable or constant speeds tested.

Neste artigo é proposto um algoritmo de controle direto potência, operando a velocidade variável e robusto às variações nos parâmetros gerador indução duplamente alimentado, cuja aplicação realizada em sistemas eólicos condições normais operação. O controlador possui duas malhas controle: uma para o desacoplamento do fluxo estator outra malha Deadbeat. calcula vetor tensão fornecido ao rotor fim garantir que potência ativa reativa atinjam seus valores referência desejados. A dependência dos...