Model of wind energy system with reduced simulation time validated by classical equivalent model developed under Simulink

Abstract

Models of a wind energy conversion chain using classical Simulink models of a diode bridge exhibit significant simulation time making difficult its combination with large scales optimization approaches. For this purpose and to increase the degree of compatibility of wind turbine models with large scales optimization approaches such as those based on Genetic Algorithms, a wind energy conversion system having an horizontal axis propeller, an axial generator with permanent magnets, recharging a battery energy accumulator through a diode rectifier is modeled by simplified method reducing simulation time. Indeed, a model of the three phase’s diode rectifier making the simulation time considerably reduced compared to the existing model in the Simulink library is developed. This model is validated by comparison with the model using the classic Simulink library. Another objective of this study is the formulation of the useful torque optimization problem having an essential constraint the reduction of the generator phase’s inductance in the goal to reduce the overvoltage in generator phases.

Design and simulation of wind energy conversion system commanded by converter and mechanical brake

“…This type of wind turbine has gained the upper hand over those with a vertical axis because they represent a lower cost, they are less exposed to mechanical stresses, the position of the receiver at several tens of meters of the ground favors the efficiency and the three-bladed rotor constitutes a compromise between the power coefficient, the cost and the speed of rotation of the wind sensor. So for these reasons our choice is focused on the three-bladed propeller with horizontal axis (Tounsi, 2021a(Tounsi, , 2021b(Tounsi, , 2022a(Tounsi, , 2022b.…”

“…Moreover, this structure is at reduced cost of production, since it has a straight and open slots which is easy to make, the winding is concentrated, which allows them to be inserted in a single block. For designing the electric generator, we chose the analytical method since it presents the following advantages (Tounsi, 2021a(Tounsi, , 2021b(Tounsi, , 2022a(Tounsi, , 2022b:…”

“…There are several converter structures used such as the structure which used a diode bridge and a thyristor bridge as well as the structure which consists in replacing the natural switching inverters composed of thyristors by forced switching inverters (Tounsi, 2021a(Tounsi, , 2021b(Tounsi, , 2022a(Tounsi, , 2022b.…”

“…The energy accumulator is a connection of elementary battery modules in series and in parallel so as to have a nominal voltage and a power storage capacity defined by the specifications of the studied application. The model of accumulator chosen for this study is the Tevenin model given by Figure 3 (Nhidi et al, 2015;Tounsi, 2015aTounsi, , 2021aTounsi, , 2021bTounsi, , 2022aTounsi, , 2022b.…”

“…The equation governing the motion of the rotating parts of the energy generation chain is deduced from the bellow fundamental relation of dynamics (Tounsi, 2021a(Tounsi, , 2021b(Tounsi, , 2022a(Tounsi, , 2022b.…”