The principle of this article is to derive a numerical model of a wind energy system (WES) with transient speed wind rotary turbine with mechanical drive, pitch angle adjustment, Permanent magnet synchronised generator (PMSG), and power switched converter. The model uses low-solidity rotors which is necessary for a WES when used for power generation. The important features of the WES model is that it is designed to have maximum value of coefficient of performance in line with Betz limit, uses power electronic based connection between the generator and the dc bus paving way for dynamic control, has a good specific rated capacity (SRC) and uses a Permanent magnet synchronous generator instead of conventional induction generator. Simulation models are presented and the output is compared with conventional WES system. © 2021 Elsevier B.V., All rights reserved.