A New Maximum Power Point Tracking Technique for Permanent Magnet Synchronous Generator Based Wind Energy Conversion System

Abstract

A new maximum power point tracking technique for permanent magnet synchronous generator based wind energy conversion systems is proposed. The technique searches for the system optimum relationship for maximum power point tracking and then controls the system based on this relationship. The validity of the technique is theoretically analyzed, and the design procedure is presented. The primary merit of the proposed technique is that it does not require an anemometer or preknowledge of a system, but has an accurate and fast response to wind speed fluctuations. Moreover, it has the ability of online updating of time-dependant turbine or generator parameter shift. The validity and performance of the proposed technique are confirmed by MATLAB/Simulink simulations and experimentations. Index Terms-Maximum power point tracking (MPPT), permanent magnet synchronous generator (PMSG), power coefficient, wind energy.

Indirect Online Estimation of Optimal Tip Speed Ratio with AHCS for PMSG WECS

“…The Tip Speed Ratio (TSR) algorithm estimates the reference rotor speed using equation (2). In [3] a hybrid MPPT algorithm proposed by combining AHCS and ORB, which uses AHCS to find the relationship between system parameters that can be used to implement ORB later and the configuration uses Diode Bridge Rectifier followed by a DC-DC converter to implement MPPT by controlling DC link current. In [15] another hybrid algorithm is proposed combining P & O and TSR which uses approximate value of TSR as input to TSR algorithm to approximately fix the starting point for searching in P & O algorithm.…”

Analysis and Simulation of Wind Turbine Optimal Control Considering wind Turbulence Characteristics

“…Thus, Hui et al [7][8][9] combined hill-climbing algorithm and fuzzy logic control to solve the problem of the hill-climbing oscillations near the extreme points, and the efficiency of hillclimbing algorithm is improved. Esmaili et al [10][11] did some researches about the operation principle of directdriven wind turbines, and proposed a corresponding MPPT control algorithm. Abdullah et al [12] classified and summarized the current MPPT algorithms, which laid the foundation for the wind turbine MPPT technology researches.…”

Control of a small wind turbine in the high wind speed region

“…Different power converter topologies have been proposed for the case of grid-tied applications [21]- [24]. The most widely used converter topology on the generator side for low-power grid-tied systems consists of a diode rectifier and a boost converter [5]- [11], [25]. Alternatively a boost rectifier has also been proposed [26].…”

“…An active rectifier with only three active switches was proposed in [19]. To interface the generating system with the grid, either an Hbridge inverter [4]- [7] or three phase phase inverter [9]- [11] can be used. With the aim of reducing the number of power components in the passive rectifier plus boost converter plus H-bridge configuration, a special back-to-back inverter was proposed in [27].…”