Power Losses Analysis of Multiphase Interleaved DC-DC Boost Converter using OrCAD PSpiceSoftware-A.A.Bakar Department of Electrical Engineering Universiti Tun Hussein Onn Malaysia-T.Sithananthan Department of Electrical Engineering Universiti Tun Hussein Onn Malaysia

2024 IEEE 4th International Conference in Power Engineering Applications (ICPEA), 4-5 March 2024

 Power Losses Analysis of Multiphase Interleaved DC-DC Boost Converter using OrCADPSpiceSoftware 

A.A.Bakar Department of Electrical Engineering Universiti Tun Hussein Onn Malaysia Johor, Malaysia afarul@uthm.edu.my S.SaimanDepartment of Electrical Engineering Universiti Tun Hussein Onn Malaysia Johor, MalaysiaT.SithananthanDepartment of Electrical Engineering Universiti Tun Hussein Onn Malaysia Johor, Malaysia tharnisha97@gmail.com A.F.H.A.Gani Department of Electrical Engineering Universiti Tun Hussein Onn Malaysia Johor, Malaysia

 Abstract—DC-DC converters with multiphase structures are widely used in electrical and electronic devices because of their advantages over conventional boost converters, such as reduction in input current ripple and low conduction loss. As technology advances, more delicate needs have to be fulfilled for better load performance. Traditional boost converters are still feasible but with certain drawbacks, such as high current ripples, significant switching losses, and high switch voltage stresses. This paper presents a novel multiphase DC-DC boost converter, with an output power range between 50 Watts to 200 Watts. The number of phases for this multiphase boost converter is limited to 5-phase. This paper focuses on power losses in the converter, namely conduction losses in diodes and MOSFET, switching losses in MOSFETs, as well as losses in inductors and capacitors. The discussion includes an analysis of the relationships between multiphase boost converters in terms of the number of phases and power loss. Simulation results show that the 3-phase DC-DC boost converter contributed to the least losses (at P=200 Watts) with the efficiency of 94.09 %, in addition to the smaller number of components used; by comparison between 3-phase and 4-phase. The performance analysis was done using OrCAD PSpice software.

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 http://eprints.uthm.edu.my/11701/1/P16758_3083f91e69916bfb3a101edf40a9cd8e%208.pdf

The Analysis and Comparison of Leakage Inductance in Different Winding Arrangements for Planar Transformer Ziwei Ouyang, Ole C. Thomsen, Michael A. E. Andersen Department of Electrical Engineering, Technical University of Denmark

 

The Analysis and Comparison of Leakage Inductance in Different Winding Arrangements for Planar Transformer Ziwei Ouyang, Ole C. Thomsen, Michael A. E. Andersen Department of Electrical Engineering, Technical University of Denmark

 Abstract -- The coupling of the windings can be easily increased by using multiply stacked planar windings connection. Interleaving is a well-known technique used to reduce leakage inductance and minimize high-frequency winding losses. The paper aims to analyze leakage inductance based on magneto motive force (MMF) and energy distribution in planar transformer and correct the formula of leakage inductance proposed by previous publications. The investigation of different winding arrangements shows significant advantages of interleaving structure. In this work, a novel half turn structure is proposed to reduce leakage inductance further. Some important issues are presented to acquire desired leakage inductance. The design and modeling of 1 kW planar transformer is presented. In order to verify the analytical method for leakage inductance in this paper, finite element analysis (FEA) and measurement with impedance analyzer are presented. Good matching between calculation, FEA 2D simulation and measurement results is achieved.

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DESIGN AND DEVELOPMENT OF UPS FOR MARINE POWER SYSTEMS-V. Samsygin1, D. Sokolov, D. Ulitovsky, M. Sergeev, A. Martynov - TSNII SET Branch, Krylov State Research Centre, St. Petersburg, Russia 2 St. Petersburg University of Aerospace Engineering, Russia

DESIGN AND DEVELOPMENT OF UPS FOR MARINE POWER SYSTEMS 

Object and purpose of research. This paper discusses uninterruptable power supplies (UPS) developed by TSNII SET for marine power systems. The purpose of the study is to compare the results of UPS developments and outline the directions of their further improvement. For citation:Samsygin V.K., Sokolov D.V., Ulitovsky D.I., Sergeev M.Yu., Martynov A.A. Development and co- Building of uninterruptible power supplies for marine power supply systems. Proceedings of the Krylov State Research Center. 2019; 2(388): 101–111.

Труды Крыловского государственного научного центра. Т. 2, № 388. 2019

Transactions of the Krylov State Research Centre. Vol. 2, no. 388. 2019

VIEW ORIGINAL VERSION (RUSSIAN) : https://www.mediafire.com/file/934bv4jq5cxz95p/DESIGN+AND+DEVELOPMENT+OF+UPS+FOR+MARINE+POWER+SYSTEMS+.pdf/file

VERSION ENGLISH : https://www.mediafire.com/file/4cn5sqwca2qd0ht/UPS+FOR+MARINE+POWER+.pdf/file

WELDING INVERTER CONTROL FOR ELECTRIC WELDING OF HIGH-PRESSURE PIPES V.S. Savchuk A.S. Plekhov Nizhny Novgorod State Technical University n.a. R.E. Alekseev Nizhny Novgorod, Russia

 WELDING INVERTER CONTROL FOR ELECTRIC WELDING OF HIGH-PRESSURE PIPES 

V.S. Savchuk ORCID: 0000-0002-2281-6612 e-mail: vladsava1997@mail.ru Nizhny Novgorod State Technical University n.a. R.E. Alekseev Nizhny Novgorod, Russia A.S. Plekhov e-mail: aplehov@mail.ru Nizhny Novgorod State Technical University n.a. R.E. Alekseev Nizhny Novgorod, Russia 

 Abstract. The paper presents a development of control system for an electric arc welding installation based on the analysis of thermal processes and algorithms developed by the authors for controlling the operating modes of the power supply. Mathematical and simulation models of welding processes with control functions of pulsed welding modes are used. The electrothermal factors influencing the process of forming a weld are considered. A method for controlling the current pulses of the welding arc is proposed.

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CONTROL OF POWER CONVERTERS IN DC MICROGRIDS WITH RES E.S. Andreenkov Smolensk branch of «National Research University «MPEI» Smolensk, Russia УПРАВЛЕНИЕ СИЛОВЫМИ ПРЕОБРАЗОВАТЕЛЯМИ В МИКРОСЕТЯХ ПОСТОЯННОГО ТОКА С ВИЭ Е.С. Андреенков

 CONTROL OF POWER CONVERTERS IN DC MICROGRIDS WITH RES E.S. Andreenkov

 ORCID: 0000-0002-9928-5354 e-mail: root67@mail.ru Smolensk branch of «National Research University «MPEI» Smolensk, Russia 

 Abstract. The paper examines a distributed control system for power converters in a microgrid with a DC bus and the integrated use of renewable energy power sources. A comparative analysis of the main methods for implementing distributed control is provided. The concept of power and energy flow control is presented, within which the DC bus voltage is used as the only means of communication between the controlled components of the microgrid, and which allows for independent control of the operation of several sources, including renewable ones, in one microgrid, considering their priority. An algorithm that implements the presented five-state control concept is shown. Models and operating modes of power converters of sources and storage devices that implement the presented control concept are considered. To demonstrate the operation of the control algorithm based on the bus voltage level, simulation of a microgrid with a DC bus, three sources and a load was carried out in the Simulink (Matlab). In this case, a simplified model was used, which did not consider transient effects when switching converters, inductance, and capacitance of transmission lines. The results of modeling a microgrid with transitions between several operating states are presented. In each state, power balance and a stable voltage level are ensured, which confirms the performance of the proposed control strategy. The presented concept makes it possible to implement operating modes of sources depending on their priority, which is especially important for renewable energy sources, while several sources can operate in each state, and the use of a DC bus as a communication channel ensures maximum simplicity and reliability of the system.

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https://ie.nntu.ru/frontend/web/ngtu/files/nomera/2024/1(25)/004.pdf