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The paper deals with the automatic generation of global model of static converters without the description of their environment. The considered models are average and exact models (i.e. with ideal switches). These models are obtained by using a software tool named AMG (for Average Model Generator) with a priori on the control mode and behaviour of the static converter. In this paper, an extension...
This paper presents a review of some techniques for islanding detection, especially by using inverter based DG applications and it also focuses on several islanding detection methods for a single-phase current-control voltage inverter working with a PV system connected into the grid. It is deliberated a single-phase inverter with maximum power of 5 kW. Islanding detection methods are investigated,...
Electromagnetic interference (EMI) in adjustable speed drives (ASD) with long feeders are of great significance today. Various simulation models have been developed for inverter, cable and motor. Also different simplifications degrees were adopted to ease the simulation burden. In this paper simplified time domain simulation models for inverter, cable and motor are analyzed, implemented and connected...
The goal of this research is to reduce the common mode current in inverter system. To reach the goal, it is important to understand the behavior of common mode current precisely in the inverter circuits. Recently, computer simulation is widely used for this issue according to create good simulation model for individual electric component in used inverter system. The simulation results/accuracies are...
The cross connected intermediate level (CCIL) voltage source inverter topology was first introduced in the work of Chaudhuri et. al (2007). The idea behind this novel multilevel topology is to explore the area of reduced number of component topologies producing large number of voltage levels. Mathematical modeling of the electrical circuit for the understanding and the control of the capacitor voltage...
In this paper, physics-based IGBT and diode models are used to simulate two 3-phase VSI systems using different power modules in SABER. The device parameters for two standard SEMIKRON power modules, the 1200 V/75 A single chip module and the 1200 V/300 A multi-chip module, are extracted following parameterization procedure. The effects of three typical degradations are considered, including solder...
In today's electrical drives, the use of more than three-phases to implement the electrical machine stator winding is a frequently adopted provision to enhance system power rating and fault tolerance. In VSI-fed electrical machines, multi-phase windings are adopted in both their symmetrical structures (with n equally distributed phases, supplied by a single n-phase inverter) and in their multiple...
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