RT-lab based real-time simulation of flywheel energy storage system associated to a variable-speed wind generator

Abstract

This paper presents a new simulator used to distribute and execute real-time simulations: the RT-LAB, developed by opal-RT technologies (Montreal, Canada). One of its essential characteristics is the perfect integration with MATLAB/Simulink. The RT-LAB allows the conversion of Simulink models in real time via real-time workshop (RTW) and their execution on one or more processors. In this context, the paper focuses on the RT-LAB real-time simulation as a complement to the MATLAB/Simulink environment, which has been used to perform the simulation of the Flywheel energy storage system (FESS -variable speed wind generation (VSWG) assembly. The purpose of employing a fairly new real-time platform (RT-LAB OP -5600) is to reduce the test and prototype time. This application will be executed on each element of our model that was previously developed under MATLAB/Simulink. The real-time simulation results are observed in the workstation.

The design of energy storage based on thermoelectric generator and bidirectional converter

“…Since the D highly depends on the Vteg and Vbus, a proper configuration of the TEG array and suitable Vbus need to be done. The relationship between D, Vteg, and Vbus is shown in (7) and (8), which is based on the conventional buck and boost converters [20]. The charge D, Dch, is the operation based on the buck converter.…”

“…In ( 9) is derived using (7), in which the Vteg is obtained using Kirchhoff voltage law. To avoid damage to the TEG array, the maximum Vint and Iteg (Vint(max) and Iteg(max), respectively) need to be set based on the manufacture datasheet of the TEG array.…”

“…There are various energy storage technologies used with the renewable energy system [2]- [4]. The top ten countries by installed capacity of the energy storage show that mechanical energy storage such as pumped hydro [5], compressed air [6], and flywheel [7] is the commonly chosen. This is due to the large energy storage capability.…”