Results 221 to 230 of about 4,738 (255)

Challenges and Solutions for Non-Inverting Buck-Boost Converters

2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021
This paper discusses several challenges in the design of non-inverting buck-boost regulators. These range from the design of control loop to operation in various regions and associated issues. Several novel schemes are introduced like a universal timer which could work in all the regions of buck-boost, an adaptive region detector which provides optimum
Anmol Sharma, Gerhard Thiele, Joerg Kirchner, Thomas Keller, Manuel Wiersch   +4 more
openaire   +1 more source

Sparse AC-Link Buck–Boost Inverter

IEEE Transactions on Power Electronics, 2014
Due to their remarkable merits, the soft-switching ac-link universal power converters have received noticeable attention during the last few years. These converters, which can be configured as dc-dc, dc-ac, ac-dc, or ac-ac, are compact, reliable, and offer longer life time compared to the other types of converters.
Mahshid Amirabadi, Jeihoon Baek, Hamid A. Toliyat   +2 more
openaire   +1 more source

Novel Transformerless Buck–Boost Inverters Without Leakage Current

IEEE Transactions on Industrial Electronics, 2020
This article presents novel transformerless single-stage buck-boost inverters with reactive power flow capability. The common-mode voltage of the proposed inverters is constant, which results in negligible leakage current. The output current of the proposed inverters is continuous that lowers the output harmonics and size of the output filtering ...
Ashraf Ali Khan, Yun W. Lu, Usman Ali Khan, Liwei Wang 0002, Wilson Eberle, Mohammed Agamy   +5 more
openaire   +1 more source

A Novel One Stage Buck-Boost Inverter

2019 IEEE International Conference on Intelligent Techniques in Control, Optimization and Signal Processing (INCOS), 2019
This paper proposes a Novel One Stage Buck Boost DC-AC Inverter (OSBBDAI) which boosts and inverts the input DC into AC. Generally for an application, where an AC output is generated from low voltage DC, two stage converters are used – a front end DC-DC boost converter followed by a DC-AC Inverter. But in proposed topology the conversion is possible in
N.M. Nithin, K. Muhammedali Shafeeque, S. Sheik Mohammed   +2 more
openaire   +1 more source

Comparison of traditional two-stage buck-boost voltage source inverter and diode-assisted buck-boost voltage source inverter

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2012
This paper investigates the wide range voltage modulation, low cost, high efficiency and high power density DC/AC power conversion in renewable energy applications. Three different DC/AC converters: conventional dc-dc boosted voltage source inverter, diode-assisted buck-boost voltage source inverter and diode-assisted buck-boost voltage source inverter
Yan Zhang, Jinjun Liu, Chaoyi Zhang
openaire   +1 more source

Modelling and controller design for a non-inverting buck-boost chopper

Proceedings of the 2011 International Conference on Electrical Engineering and Informatics, 2011
Due to its simplicity, low voltage stress, high reliability, low switch and inductor losses, and small inductor size, the non-inverting buck-boost chopper has found a lot of attentions in applications where it is necessary to step-up or step-down the DC voltage.
Reza Dowlatabadi, Mohammad Monfared 0001, Saeed Golestan, Amir Hassanzadeh   +3 more
openaire   +2 more sources

Diode-Assisted Buck-Boost Current Source Inverters

2007 7th International Conference on Power Electronics and Drive Systems, 2007
This paper presents a couple of novel current source inverters (CSIs) with the enhanced current buckboost capability. With the unique diode-inductor network added between current source inverter circuitry and current boost elements, the proposed buck-boost current source inverters demonstrate a double current boost capability when comparing with the ...
Gao, F., Cai, Liang, Loh, P.C., Blaabjerg, Frede; id_orcid 0000-0001-8311-7412   +3 more
openaire   +3 more sources

A Buck-Boost Multilevel Inverter for PV Systems in Smart Cities

2018
This paper proposes a new buck-boost multilevel inverter topology, which is named as a hybrid quasi-Z-source network multilevel inverter, for photovoltaic systems in smart cities. This topology employs an impedance source network and a high frequency three-level switching unit connected to the low frequency single phase inverter.
Anh-Vu Ho, Tae-Won Chun
openaire   +1 more source

Adaptive control of non-inverting buck-boost converter

The 5th Annual International Power Electronics, Drive Systems and Technologies Conference (PEDSTC 2014), 2014
This paper presents an approach to system identification and adaptive control of non-inverting buck-boost converter in presence of large signal changes, uncertainty of converter's component and effects of imperfect modeling. Feedback loops of DC-DC converter are typically designed conservatively so that the closed loop regulation and stability margins ...
Navid Namjoo, Amin Hajizadeh
openaire   +1 more source

A Novel Single-Stage Full-Bridge Buck-Boost Inverter

IEEE Transactions on Power Electronics, 2003
A novel single-stage full-bridge series-resonant buck-boost inverter (FB-SRBBI) is proposed in this paper. The proposed inverter only includes a full-bridge topology and a LC resonant tank without auxiliary switches. The output voltage of the proposed inverter can be larger or lower than the dc input voltage, depending on the instantaneous duty-cycle ...
openaire   +1 more source