Analytical model of a wind energy AC-DC-AC scheme

Abstract

Megawatt scale wind turbines have become the unit of choice in commercial wind farms. Throughout the world wind energy penetration levels continue to rise with many countries having installed wind farm nameplate capacity in excess of ten percent of the national grid. This paper presents an analytical model of a two megawatt permanent magnet synchronous generator directly connected to the wind turbine rotor shaft. Directly connected permanent magnet generators with full scale AC-DC-AC controllers have found favor within the industry because of their lower maintenance and manufacturing costs and ease of grid integration. This paper will present a full analytical model of the wind turbine and the AC-DC-AC controller connected to a stiff utility grid along with their solutions in the time domain. Space vector modulation is utilized for gating the power electronics devices.

Installation and Performance Study of a Vertical-Axis Wind Turbine Prototype Model

“…As mentioned above, a typical WT consists of mechanical, electrical, and structural components, apart from the supporting foundation [14]. A brief review of the existing literature reveals that there are significant past research contributions, including laboratory model studies [15][16][17], full-scale field investigations [18][19][20], analyses [21][22][23], and numerical [24][25][26] works, along with appropriate design recommendations [27,28]. Limited studies were carried out in the past on the performance analysis and parametric studies of small-scale wind turbines [29,30].…”