CPES-高温运行50kW SiC 三相 AC-DC 变换器设计-CPES-High Temperature Operation 50kW SiC Three-Phase AC-DC Converter Design

 

Electromagnetic theory, calculation and application I - [Beijing Institute of Technology] - Professor Sheng Xinqing

ABB UPS PARA APLICAÇÕES EM DATA CENTER COM CARGAS INTELIGÊNCIA ARTIFICIAL-DCD CONNECT SÃO PAULO BRASIL

 

HIGH VOLTAGE SEMINAR Advantages of 650V GaN FETs for 800V Power Converters-ENG. RAMANAN NATARAJAN TEXAS INSTRUMENT

 

Power supply expert course advanced edition: charge pump/surge protection circuit

 

 MIT OpenCourseWare

Lecture 19: Inverters, Part 3 17 de jul. de 2024 MIT 6.622 Power Electronics, Spring 2023 MIT 6.622 Power Electronics, Spring 2023 Instructor: David Perreault

BASIC STATE SPACE MODEL PWM CONVERTER IN CCM -ShanghaiTech University=PROFESSOR WANG HAOYU

 

Power Electronic Converter Modeling and Control - ShanghaiTech University - Power Electronics Technology - Electrical Engineering - Electronic Information Engineering - Power Management Technology

U-shaped high-frequency transformer HIGH VOLTAGE

 

Using a U-shaped high-frequency transformer that is more efficient than the E-shaped one, a 15KV plasma lighter can be made, which can melt iron wires

STATE SPACE EXAMPLE: NON-IDEAL BUCK-BOOST -"Modeling and Control of Power Electronic Converter"Shanghai Tech University Professor Wang Haoyu

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IGBT-"Modeling and Control of Power Electronic Converters" Lecturer: Wang Haoyu Course-Shanghai Tech University Professor Wang Haoyu

 

IGBT-"Modeling and Control of Power Electronic Converters" Lecturer: Wang Haoyu Course-Shanghai Tech University Professor Wang Haoyu

（加拿大博主报道）中国如何建造天宫空间站- How China built the Tiangong space station

（加拿大博主报道）中国如何建造天宫空间站- How China built the Tiangong space station

Power Electronics Technology】Xi'an Jiaotong University丨BASIC PRINCIPLES OF PWM CONTROL-PART-3

 

Power Electronics Technology】Xi'an Jiaotong University丨BASIC PRINCIPLES OF PWM CONTROL-PART-3

Power Electronics Technology】Xi'an Jiaotong University丨PWM CONTROL-PART-2

 

Power Electronics Technology】Xi'an Jiaotong University丨PWM CONTROL-PART-2

Power Electronics Technology】Xi'an Jiaotong University丨BASIC PRINCIPLES OF PWM CONTROL-PART-1

 

Power Electronics Technology】Xi'an Jiaotong University丨BASIC PRINCIPLES OF PWM CONTROL-PART-1

【Power Electronics Technology】Xi'an Jiaotong University-INTRODUCTION

【Power Electronics Technology】Xi'an Jiaotong University丨Contains courseware-COMMON PROBLEMS OF POWER ELECTRONICS

 

Power Electronics Research-HIGH FREQUENCY INVERTER AND RECTIFIER

Protective earthing and protective zero connection in power system

 Protective earthing and protective zero connection in power system

Mean Well 1200W Inverter Disassembly

 

芯仙方案2200W双向AC-DC逆变器参考设计解析：具备UPS功能，可适用48V电池储能-Xinxian Solution 2200W Bidirectional AC- DC Inverter Reference Design

 This bidirectional inverter is a three-active bridge design, using two NXP MC56F81768MLH digital signal controllers for overall control. MPS and Nanochip drivers are used to drive the switch tubes. The battery-side switch tube is from Infineon, model IPP023N10N5, the high-voltage MOS tube is from Optoelectronics, model SJMN099R60ZSW, and the IGBT is from Trino, model TGH40N65F2DS.

MANUTENÇÃO DE CARREGADOR DE BATERIA DE LITIO

Electric vehicle charger repair

A Study on the 500W Class Converter for Power Supply of Ultrasonic Anti-Fouling System for Small Ships Based on Independent Power 독립전원 기반 소형 선박의 초음파 방오 시스템 전원 공급용 500W급 컨버터에 관한 연구

The Transactions of the Korean Institute of Electrical Engineers KIEE Vol. 72, No. 10, p.1173-1179 ISSN (print) :1975-8359 ISSN (online) :2287-4364 Received :15 June 2023Revised :14 September 2023Accepted :22 September 2023 DOI :http://doi.org/10.5370/KIEE.2023.72.10.1173

 A Study on the 500W Class Converter for Power Supply of Ultrasonic Anti-Fouling System for Small Ships Based on Independent Power 독립전원 기반 소형 선박의 초음파 방오 시스템 전원 공급용 500W급 컨버터에 관한 연구 김동욱 (Dong-Wook Kim) 1iD 김배성 (Bae-Sung Kim) 1iD 신덕식 (Duck‑Shick Shin) †iD

 Abstract 

An ultrasonic anti-fouling system that works to remove bio-fouling, which is organic substances attached to structures under the water surface of a ship, while the ship is anchored is proposed. In order to review the configuration and applicability of the proposed system, it is designed by analyzing the operation patterns of coastal small ships and simulating power consumption according to the operation patterns. In this paper, a 500W class converter is proposed among the proposed system. To achieve high performance, a continuous conduction mode that can reduce the size of a circuit and improve efficiency of the system is applied, a two-phase interleaved boost converter applied to schottky diode and N-MOSFET power switch which are capable of high-speed switching is designed. In addition, P&O method that is easy to implement and has a simple structure among MPPT control algorithms is applied to track the optimal operating point in the non-liner characteristics of independent power module. To verify the usefulness of the proposed system, a 500W class power converter is designed. Through simulations and experiments, the performance of the MPPT algorithm according to the solar radiation condition of the independent power module and the two-phase interleaving algorithm are verified. In particular, the MPPT efficiency of over 99.6% is confirmed even under environmental conditions where the amount of solar radiation rapidly changed from 100% to 75% and the power conversion efficiency at 500W output is confirmed to be 96.26%, confirming the usefulness of the proposed circuit.

VIEW FULL TEXT:http://journal.auric.kr/AURIC_OPEN_temp/RDOC/kiee01/kieet_202310_006.pdf

A Study on the Improvement of Stability Through Improved PLL Control Techniques Based on PFC and LLC Topology With Integrated Transformer 통합 변압기를 적용한 PFC, LLC 토폴로지 기반 개선된 PLL 제어기법을 통한 안정성 향상에 관한 연구 Yong-Jin Shin Woo-Cheol Lee

 

A Study on the Improvement of Stability Through Improved PLL Control Techniques Based on PFC and LLC Topology With Integrated Transformer 

통합 변압기를 적용한 PFC, LLC 토폴로지 기반 개선된 PLL 제어기법을 통한 안정성 향상에 관한 연구 Yong-Jin Shin Woo-Cheol Lee 

 Abstract 

This paper presents an enhanced Phase-Locked Loop (PLL) method using the Goertzel algorithm to improve the performance of Power Factor Correction (PFC) and LLC resonant converters. By eliminating the current sensor at the DC-link capacitor and allowing the LLC converter to operate within the PFC converter's frequency range, the new method ensures efficient Zero Current Switching (ZCS). Experimental and simulation results demonstrate that our approach significantly improves the power factor compared to conventional methods. This solution simplifies the circuit design, reduces overall costs, and increases system reliability.

VIEW FULL TEXT:

http://journal.auric.kr/AURIC_OPEN_temp/RDOC/kiee01/kieet_202407_014.pdf

Signals and Circuits – Baskakov-

 

About the book 

The present book is a course on signals and circuits as it is taught in the USSR. This subject figures prominently among the fundamental disciplines essential to the expertise of communication engineers. Keeping pace with overall progress in science and technology and reflecting the current trends in component design and theory, this course combines and sets forth in a systematic way the most important principles in the field of communications. In his work on the text, the author has been guided by the idea that material should be specifically tailored to the teaching practice at college. This approach has governed the selection of material and the degree of detail in its presentation: its pages contain what, as the author believes, the student can fully assimilate during the time allotted. Specific circuit types, their study and comparative analysis-all this belongs to the specialized subjects in communication engineering. This text includes a wide variety of material and a wealth of concepts and techniques which will come the student’s way for the first time. Ample space is devoted to mathematical tools of study. To link theory closer to practice, the chapters contain a great number of examples and problems giving the student deeper insight into the techniques of engineering analysis. The book was translated from Russian by V. Kuznetsov was published in 1986 by Mir Publishers

SOURCE :https://mirtitles.org/2022/02/12/signals-and-circuits-baskakov/

BOOK IN WEB:https://archive.org/details/baskakov-signals-and-circuits-mir-publishers

ALTERNATIVO ENLACE:https://www.mediafire.com/file/d3k72hu437dqoma/Baskakov+-+Signals+and+Circuits.pdf/file

反激MOS管上的波形分析，反激工作原理-Waveform analysis on flyback MOSFET, flyback working principle.

Of the many converter topologies around today, the flyback topology is one of the most frequently used. Although simple, this converter design offers great advantages for certain applications. New, more complex topologies have surfaced in recent years, but flyback converters remain a popular design choice.

Operating Modes

 Like other converters a yback converter has two operating modes; continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The two operation modes have dierent transfer equations and dierent current and voltage wave forms. Therefore, from a design point of view it is important to analyse the current and voltage that the electric components in the converter experience. Particularly the current owing through the circuit, voltage across the switch and the diode [2]. The magnetizing inductance and the load current determines the operation mode of the converter. During the analysis of the dierent conduction modes of the converter, the following assumptions will be made [5].  The converter is operating in steady state  The converter is ideal, that is the input power is equal to the output power  Leakage inductance, stray capacitors and stray resistances are neglected.

전압 직렬보상 방식 디지털 제어 교류 저전압보상기 정 강 률* Digital-Controlled AC Low-Voltage Compensator with Voltage Series Compensation Method Gang-Youl Jeong*

 

전압 직렬보상 방식 디지털 제어 교류 저전압보상기 정 강 률* Digital-Controlled AC Low-Voltage Compensator with Voltage Series Compensation Method Gang-Youl Jeong* Journal of KIIT. Vol. 21, No. 12, pp. 87-98, Dec. 31, 2023. pISSN 1598-8619, eISSN 2093-7571 87 

 Abstract 

This paper presents the digital-controlled AC low-voltage compensator with voltage series compensation method. The proposed AC low-voltage compensator compensates for the magnitude of the AC load input voltage, which is the final output voltage, with the voltage series compensation method using a power circuit topology consisting of a pulse-width modulation(PWM) AC-AC power converter and a compensating transformer. To this end, the proposed low-voltage compensator simply feeds back the magnitude of AC load input voltage through a circuit consisting of a current-type voltage transformer, a diode full-bridge rectifier, and a resistor/capacitor. Additionally, using a micom, it converts the feedback voltage to a digital value through A/D conversion and easily controls the entire system. This paper first briefly describes the operating principle of the power converter applied to the proposed low-voltage compensator and explains the control method of low-voltage compensation and the feedback method of final output voltage. Then, the driving method of the bidirectional power semiconductor switch of power converter is explained, and the implementation feasibility and good operating characteristics of the proposed low-voltage compensator are validated through the experimental results of the prototype.

VIEW FULL TEXT:  https://ki-it.com/xml/38930/38930.pdf

단일단 교류 전력변환기를 이용한 자동 교류 전압조정기-Automatic AC Voltage Regulator using the Single-Stage AC Power Converter Gang-Youl Jeong*

 

단일단 교류 전력변환기를 이용한 자동 교류 전압조정기 정 강 률* Automatic AC Voltage Regulator using the Single-Stage AC Power Converter Gang-Youl Jeong* Journal of KIIT. Vol. 20, No. 11, pp. 73-83, Nov. 30, 2022. pISSN 1598-8619, eISSN 2093-7571 73 

 Abstract 

This paper presents the automatic AC voltage regulator using the single-stage AC power converter. The proposed automatic AC voltage regulator uses a pulse-width modulation(PWM) type non-isolated single-stage step-up/down AC power converter to control and maintain the level of AC voltage on the output-side to a desired level. Since the proposed voltage regulator controls the magnitude of output voltage by using only the average of the scaling values of the output voltage fed back by a simple voltage feedback circuit without phase synchronization, the control method of output voltage is simple. Thus, the proposed voltage easily controls the entire system using a single-chip microcontroller. In this paper, first, the operating principle of the power converter of proposed voltage regulator is briefly explained, and then the feedback and control method of output voltage are described. The feasibility and operating characteristics of proposed voltage regulator are verified through the experimental results of prototype. The proposed voltage regulator can control and maintain the output-side AC voltage to a desired level by performing the step-up/down control operation accurately, and shows a fast dynamic response characteristic.

VIEW FULL TEXT: https://ki-it.com/xml/34783/34783.pdf

NO-BREAK PARA APLICAÇÕES RESIDENCIAIS, COMERCIAIS E INDUSTRIAIS DE 5kW COM INTERFACE PARA PAINEL SOLAR Carlos H. G. Treviso, Aziz E. Demian Jr., André L. B. Ferreira -Universidade Estadual de Londrina - Londrina - PR -BRASIL

 

NO-BREAK PARA APLICAÇÕES RESIDENCIAIS, COMERCIAIS E INDUSTRIAIS DE 5kW COM INTERFACE PARA PAINEL SOLAR 

Carlos H. G. Treviso, Aziz E. Demian Jr., André L. B. Ferreira Universidade Estadual de Londrina - UEL CEP 86055-900, C.P. 6001, Londrina - PR -BRASIL 

 Resumo – Este artigo traz um projeto completo de um No-Break de 5kW de saída, para aplicações residenciais, comerciais e industriais, sendo uma importante contribuição para o meio acadêmico e comercial. Permite ainda a utilização de painéis solares, podendo tornar a carga em questão menos dependente da rede elétrica, além da utilização da energia limpa. Para tanto foi implementado um protótipo em campo, com banco de baterias de 48V (24 baterias de 12V/7,2A), com estimativa de autonomia de 25 minutos para carga máxima. 

 RESIDENTIAL, COMMERCIAL AND INDUSTRIAL APPLICATIONS FOR A 5kW UPS UNIT WITH INTERFACE FOR SOLAR PANNEL COUPLING

 Abstract – This article presents the complete project for a 5kW UPS unit devised, for residential, commercial and industrial applications that is an important contributing for the academic and commercial environment. It allows the use of solar panels, that can make the load less dependent on electric system and the use of clean energy. For this was implemented a prototype in field, with batteries bank of 48V (batteries of 12V/7,2A), with 25 minute estimate autonomy for maximum load.

VIEW FULL TEXT:

https://sobraep.org.br/site/uploads/2018/06/rvol14no3p8.pdf

Mathematical analysis in problems and exercises. Differential and integral calculus V. A. Sadovnichy, I. A. Vinogradova, S. N. Olehnik-Математический анализ в задачах и упражнениях. Дифференциальное и интегральное исчисление В. А. Садовничий, И. А. Виноградова, С. Н. Олехник

 

VIEW FULL TEXT:

https://www.mediafire.com/file/23s6ex2kefhhtpv/Mathematical+analysis+in+problems+and+exercises.-Математический+анализ+в+задачах+и+упражнениях.+Дифференциальное+и+интегральное+исчисление+(В.+А.+Садовничи.).pdf/file

Power Line Noise Suppression using N-path Notch Filter in ECG Signal Acquisition-Doctoral Thesis Shibaura Institute of Technology-Author: Khilda AFIFAH

 

POWER LINE NOISE SUPPRESSION USING N-PATH NOTCH FILTER IN ECG SIGNAL ACQUISITION Author: Khilda AFIFAH Supervisor: Prof. Nicodimus RETDIAN 

A thesis submitted in fulfillment of the requirements for the award of the degree of Doctor of Engineering Shibaura Institute of Technology 2020/September

Abstract

 POWER LINE NOISE SUPPRESSION USING N-PATH NOTCH FILTER IN ECG SIGNAL ACQUISITION by Khilda AFIFAH

 Bio-sensing activities such as electrocardiogram (ECG) and electroencephalography (EEG) are challenging to obtain high-quality electrical signals because biomedical signals have small amplitude and low frequency. When performing a biomedical signal acquisition, common-mode noise such as power line interference appears near the desired biomedical signal. It has made a problem when the power line interference has amplitude higher than the primary signal. Common-mode noise reduction has been recognized as important research. The driven right leg (DRL) circuit was significant and effective to suppress commonmode noise. However, in the actual ECG measurements using DRL circuit, sometimes noise still appears at the output and mismatching in the electrode impedance makes an impact to convert common-mode noise into a differential input voltage. The body in DRL circuit is expressed as a single node and cannot be used to simulate the effect of the electrode impedance mismatch. Therefore, a new body model is needed to be able to analyze the effect of electrode impedance mismatch and other problem with common body model. 

The proposed DRL circuit is an improved circuit from common DRL circuit. The first improved DRL circuit, biomedical signal is expressed by current source in parallel with electrode impedance. The simulation results of improved circuit show mismatch between right and left electrode impedance makes noise appears at the output signal. The common human body from DRL circuit represented skin-electrode impedance as a single node. The second improved circuit, the skin-electrode impedance is expressed by resistance and stray capacitance are on each electrode. The simulation results of this improved circuit show the proposed circuit achieved smaller noise when stray capacitance in the arm and right leg are the same. Combination between proposed human body model and DRL circuit achieved output of the circuit is noise appear in the output signal. Therefore, human body model with DRL circuit still need another filter to get high quality biomedical signal (noise free signal).

The other techniques to suppress common-mode noise have been proposed by using digital and analog notch filters. The technique to suppress common-mode noise used a digital notch filter, but it requires an analog front-end with a wide dynamic range since the noise contaminated input signal need to be converted to digital signal. The techniques with analog notch filter such as conventional Npath notch filters have disadvantage because these techniques require 3GΩ switches off-resistance and 18 paths to reach notch depth target. The problem to implement previous N-path notch filter is the difficulty in implementing switch with offresistance. On-chip implementation of the system is also a challenge in the realization of portable ECG devices because the notch filter has a large time constant in which requires large capacitance and high resistance. Two topologies of N-path notch filter with leak buffer circuit have been proposed. The proposed N-path notch filters are Topology 1 and Topology 2. Topology 1 and Topology 2 achieved notch depth of 62.4dB and 63dB in measurement results with sampling frequency 50Hz, even if the proposed circuits use less number of path and small of switches off-resistance. Topology 1 and Topology 2 are verified using artificial ECG signal with 2Hz which is contaminated by power line interference with frequency 50Hz or 60Hz. Experiment results show that the proposed circuit significantly reduces the power line noise.

VIEW FULL THESIS:

https://shibaura.repo.nii.ac.jp/records/170

PSPICE SIMULATION OF SINGLE PHASE SHUNT ACTIVE HARMONIC FILTER POWER