The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We present experimental data and simulation methods concerning the destruction of Insulated Gate Bipolar Transistors (IGBTs) during inductive turn-off when dynamic avalanche occurs. The influence of cell pitch and gate resistor on destruction is explored and the occurrence of current fllamentation is proposed to be a necessary condition for destruction. In order to validate this hypothesis, transient...
This paper presents the emulation of an isolated wind energy conversion system, which is composed by a doubly-fed induction generator, a back-to-back converter connected to its rotor, a LC filter to minimize the harmonic pollution in the generated voltage and an isolated three-phase load. In first instance, the test bench is described and its operational capabilities are introduced. Afterwards, the...
The insulated gate bipolar transistor (IGBT) is still the most used power semiconductor device for applications at medium power and frequency ranges, due to its good compromise between on-state loss, switching loss, and ease of control. IGBT models should consider the different available fabrication technologies aimed to optimize the device behavior for particular applications. Physics-based models...
Recently, interest in the use of the 4H-SiC material for the manufacture of power devices has increased. The PiN diode is one of the silicon carbide power devices more promising for its application in power converters systems. This has motivated the development of a model that allows describing the 4H-SiC PiN diode behavior correctly. In this paper the simulation results obtained by the implementation...
In this paper the experimental implementation of a wind turbine emulator (WTE) for wind energy conversion systems (WECS), using a separately excited DC motor are presented. The model of the wind turbine (WT) and the control of the DC motor are implemented in MATLAB/SIMULINK. The developed WTE allows a WECS to be analyzed without the need of real wind turbines. The WECS consider in this work is composed...
In this paper the authors consider the sliding mode control (SMC) of a doubly fed induction generator (DFIG), supplying an isolated RL load in a variable speed-constant frequency (VSCF) generation system. It must be reminded that in electric machines the existence of parameter changes, caused by several reasons like winding temperature variation, hysteresis and saturation, is well recognized, but...
In this paper the authors present preliminary results concerning the sliding mode control (SMC) of a doubly fed induction generator (DFIG) supplying an isolated RL load in a variable speed-constant frequency (VSCF) generation system. This kind of system has already been considered in the past by other researchers, mainly by using PI-type regulators. However, it must be reminded that in electrical...
Currently, power electronics designers ask for more precise power semiconductor device models. Models based on semiconductor physics offer a better option to accomplish these requirements. Other aspect is the availability of parameter extraction methods which frequently is complicated. This paper proposes a study of parameter extraction methods for semiconductor device models. From this analysis an...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.