Results 291 to 300 of about 347,837 (349)

Constant Effective Duty Cycle Control for Flying Capacitor Balancing in flying Capacitor Multi-Level Converters

2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL), 2018
One of the challenges of utilizing Flying Capacitor Multi-Level (FCML) converters is the flying capacitor balancing. Poorly balanced flying capacitors increase the switch voltage stress, which is detrimental to performance and device rating requirements.
Andrew Stillwell, Enver Candan, Robert C. N. Pilawa-Podgurski   +2 more
openaire   +1 more source

A Bidirectional Three-Level Converter Control With Shared Control Circuit and Single-Point Sensing for Flying Capacitor Balance

IEEE transactions on power electronics
This article presents a novel three-level (TL) converter control integrated circuit (IC) with a flying capacitor control loop, an adaptive constant on-time (ACOT) control, and a shared control circuit in bidirectional operation for the battery charger ...
Yu-Yu Lin, Yi-Rong Huang, Ching-Jan Chen, Yuan-Chih Lin, Tsung-Wei Huang   +4 more
semanticscholar   +1 more source

Universal precharging method for dc-link and flying capacitors of four-level Flying Capacitor Converter

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
This paper investigates universal start-up procedure for Flying Capacitor Converter (FLC). Main part of this procedure is pre-charging of the dc-link and flying capacitors. This method is usable for voltage pre-charging in rectifier as well as inverter mode of the multilevel FLC converter. This specific feature is based on use of converter topology and
Dusan Janik, Tomas Kosan, Petr Kamenicky, Zdenek Peroutka   +3 more
openaire   +1 more source

Two Stages FCS-MPC for a Flying Capacitor Converter With Improved Switching Performance

IEEE Transactions on Industrial Informatics
This article proposes a modified finite control set model predictive control (FCS-MPC) strategy for a three-phase three-cell flying capacitor converter implemented in two separate stages.
Alvaro Ortiz, P. Lezana, M. Norambuena
semanticscholar   +1 more source

Fundamental State-Space Modeling Methodology for the Flying Capacitor Multilevel Converter

Compel, 2022
In recent decades the flying capacitor multilevel (FCML) converter has been demonstrated to be a highly com-pact and efficient substitute for conventional switched inductive topologies. However, the fundamental dynamical behavior of the additional flying
Nathan C. Brooks, Rahul K. Iyer, Roderick S. Bayliss, R. Pilawa-Podgurski   +3 more
semanticscholar   +1 more source

Constant On/Off-Time Digital Current Control and Design Methods in Three-Level Flying-Capacitor Boost Converters for Fast Transient and Voltage Balancing

IEEE transactions on power electronics
Constant on/off-time current-mode control (CMC) techniques are useful for wide-duty-ratio operations in multilevel flying-capacitor converters. In this article, event-based constant on/off-time digital CMC architectures are proposed in a three-level ...
Ruturaj Garnayak, S. Kapat, Chandan Chakraborty   +2 more
semanticscholar   +1 more source

Design of High Step-Down Ratio Isolated Three-Level Half-Bridge DC–DC Converter With Balanced Voltage on Flying Capacitor

IEEE transactions on power electronics, 2022
A high step-down ratio three-level half-bridge (TLHB) dc–dc converter with a current-doubler rectifier is presented for power conversion from a 48-to-60-V input to a 0.5-to-1-V output. The proposed TLHB topology and operation employed on the primary side
Minho Choi, D. Jeong
semanticscholar   +1 more source

New method for estimating flying capacitor voltages in stacked multicell and flying capacitor multicell converters

Journal of Zhejiang University SCIENCE C, 2010
Multicell converters are an interesting alternative for medium voltage and high power applications, because of the increased number of output voltage levels and apparent frequency. The two most significant types of multicell converter are the flying capacitor multicell (FCM) converter and its derivative, stacked multicell (SM) converter.
Arash Khoshkbar Sadigh, Gevorg B. Gharehpetian, Seyed Hossein Hosseini   +2 more
openaire   +1 more source

A Low-Complexity Balancing Technique for Flying-Capacitor Odd-Level Converters

Compel
In flying-capacitor multilevel (FCML) converters, it is necessary to regulate the flying-capacitor (FC) voltages to their nominal values using either active or passive means. Many active balancing schemes have been proposed in the literature, which often
Siddharth Iyer, Sayan Paul, D. Maksimović, L. Corradini   +3 more
semanticscholar   +1 more source

A Simplified Flying Capacitor Voltage Control Strategy for Hybrid Clamped Three-Level Boost Converter in Photovoltaic System

IEEE transactions on industrial electronics (1982. Print), 2022
This article proposed a simplified flying capacitor voltage (FCV) control strategy based on hybrid clamped three-level boost converter. Compared with the traditional control method, the proposed method does not need the sampling of the FCV and the extra ...
Lei Song, S. Duan, Tao Wang, Xiaokui Liu
semanticscholar   +1 more source