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.
This paper presents the design and optimization of MEMS-microfabricated toroidal inductors targeted for use in integrated power electronics. The process is based on MonteCarlo inductor synthesis, performance evaluation based on analytic inductor models and circuit simulation, and Pareto-optimal filtering. The models and simulation are verified through comparison with magnetic finite element analysis...
Cell capacitor energy control of a Modular Multilevel Converter (MMC) is conventionally done by controlling leg current and modulation strategy. In most of literatures, leg current transient is analyzed under an assumption that the DC bus is a stiff DC voltage source. In a real MMC-based HVDC transmission system, however, there's no such virtual stiff DC voltage source and the conventional regulation...
Integration of multi-converter systems into information-embedded power system infrastructures has been necessitated by the increasing popularity of microgrids, renewable energy systems and DC distribution systems. This work is motivated by the need for an autonomous simulation tool to perform system-wide analysis of static and dynamic behavior of multi-converter systems taking into account the underlying...
The current technology applied in power electronic converter designs is based on stationary placement of power switches. Most fault tolerant realizations require additional switches (redundancy approach). The motivation behind this paper is to engineer a solution which can allow for a dynamic circuit topology, thereby elevate the size, cost, and complexity issues associated with current technology...
Small-signal stability in balanced three-phase systems can be analyzed using the Generalized Nyquist stability Criterion (GNC), which is based on source and load impedance in the synchronous rotating (d-q) frame. This paper models the d-q frame impedance of three-phase grid-tied inverters with current feedback control and Phase-Locked Loop (PLL). The result unveils a very interesting and important...
A model is proposed for the calculation of the winding losses at the beginning of the design process of high frequency transformers and inductors. Although this kind of losses have been subject of investigation for years, their analytical calculation in gapped components is still limited, and the use of numerical analysis tools, such as finite elements analysis (FEA) tools, are commonly needed for...
This paper proposes a novel wound-rotor machine which has a single-phase stator winding and three-phase rotor windings. The machine is called Single-Phase Wound-rotor Machine (SPWM). The machine can be driven in motoring and generating modes in single-phase grid system. The dynamic model and control system of the machine are also designed. Typically, the double revolving field model is used for singlephase...
The conventional mathematic model of PV (Photovoltaic) cells contains logarithmic terms, which is not conducive to derivation calculation in small-signal modeling. The parameters of PV system are coupling due to its double-loop control method, and it's hard to precisely choose controller parameters. To solve these two problems above, this paper is based on PV system connected to an infinite power...
Induction heating technology provides high performance and efficient systems that are being quickly adopted in industrial and domestic applications. In order to improve such systems, this paper proposes a Multi-MOSFET implementation focusing the efficiency and power density optimization of the resonant converters used to generate the required magnetic field. A thermal and electrical model is provided,...
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.