Double Modulation Applied To A High Power Factor Rectifier With High Frequency Transformer For Ups Application
نویسندگان
چکیده
منابع مشابه
Application of Vector Fitting to High Frequency Transformer Modeling
This paper describes a procedure for frequency dependent modeling of power transformers from measured terminal characteristics. The admittance matrix is measured in the frequency domain using a network analyzer and a dedicated measurement setup. Subsequent approximation of the admittance matrix with rational functions using Vector Fitting gives an EMTP-type compatible model suitable for transie...
متن کاملMultistage High Power Factor Rectifier with passive lossless current sharing
-Passive current sharing in multiphase converters, where resistive losses are not dominant, is a quite complex goal. In this work, input impedance of active clamp boost converters is used like a lossless passive equalization in multistage high power factor rectifier. This technique allows the design of high power converters by and easy parallel association of power stages. Experimental results ...
متن کاملOptimum Design of a High-Power, High-Frequency Transformer - Power Electronics, IEEE Transactions on
A procedure for optimum design of a high-power, high-frequency transformer is PresentedThe Procedure is based on both electrical and thermal processes in the transformer and identifies a) the VA-rating of ferrite cores in relation to the operating frequency, , , ) the optimum flux density in the core, and c) the optimum current densities of the windings providing maximum transformer efficiency....
متن کاملHigh Efficiency Bridgeless Sepic Rectifier for Power Factor Correction
A step-up bridgeless single phase ac-dc power factor correction (PFC) rectifier based on sepic topology is proposed for high voltage battery charger application. The proposed topology consists of common input stage and parallel output stages. It utilizes one control signal over the whole line cycle. In addition, the proposed converter exhibits low inrush current and low magnetic emissions as cl...
متن کاملHigh Frequency Transformer Isolated Quasi Z-Source Cascade Multilevel Inverter
In this paper, a new structure of HFTI-qZS-CMI has been proposed. The proposed structure is capable of generating high-voltage for medium to high power applications. By adding a switch, a capacitor and a high-frequency transformer and also eliminating an inductor from each qZS-CMI cell, the HFTI-qZS-CMI structure will be created. Using the high-frequency transformer in the proposed structure, l...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Eletrônica de Potência
سال: 2018
ISSN: 1414-8862,1984-557X
DOI: 10.18618/rep.2018.1.2721