Results 81 to 90 of about 5,939 (218)
Impedance control network resonant dc-dc converter for wide-range high-efficiency operation [PDF]
This paper introduces a new resonant converter architecture that utilizes multiple inverters and a lossless impedance control network (ICN) to maintain zero voltage switching (ZVS) and near zero current switching (ZCS) across wide operating ranges. Hence,
Afridi, Khurram K. +2 more
core +1 more source
Dual Switching Mode Scheme for Hybrid Boost‐Flyback/Flyback Photovoltaic Microinverter Applications
Based on an ON‐time control approach and a transition mechanism of a variable transition point, this paper presents a hybrid BCM‐BF/DCM‐F microinverter, which is operated in BCM‐BF mode for one segment of a half grid cycle and DCM‐F mode for the rest.
Feng Zhang +5 more
wiley +1 more source
Power electronic conversion plays an important role in flexible AC or DC transmission and distribution systems, integration of renewable energy resources, and energy storage systems to enhance efficiency, controllability, stability, and reliability of ...
Keyan Shi +3 more
doaj +1 more source
Zero-Voltage and Zero-Current Switching Buck-Boost Converter for PV Applications [PDF]
A ZVS and ZCS buck boost converter is presented for PV panel applications. The salient points are that all the switching devices are under zero-current switching during turn-on and zero-voltage switching during turn-off.
Govind, S. (Sudhin) +2 more
core
Analysis of self-oscillating DC-DC resonant power converters using a hysteretic relay [PDF]
The paper presents a technique for exciting resonant DC-DC converters in a self-oscillating manner. The analysis necessary to predict the behaviour of such converters is also given.
Bingham, Chris +4 more
core +1 more source
To achieve both low cost and high efficiency, this article proposes a high‐power flyback PV microinverter based on a novel connection architecture and a software‐based VS control strategy. ABSTRACT For photovoltaic microinverters, power generation cost and efficiency are critical considerations. To reduce cost, this article designs a high‐power flyback
Zihao Wang +4 more
wiley +1 more source
In future dc distributed power systems, high performance high voltage dc-dc converters with redundancy ability are welcome. However, most existing high voltage dc-dc converters do not have redundancy ability. To solve this problem, a wide load range zero-
Yong Shi, Zhuoyi Xu
doaj +1 more source
This paper proposes an improved offline pulse density modulation strategy for the SWISS rectifier to achieve low input current distortion and high power factor at high switching frequencies. Experimental results at 38.4 kHz reduce THDi from over 30% to ≈10%, while high‐frequency simulations at 172.8 kHz achieve THDi of 3.3% and PF = 0.9954.
Thuong Ngo‐Phi +3 more
wiley +1 more source
A Bidirectional Soft-Switched DAB-Based Single-Stage Three-Phase AC–DC Converter for V2G Application [PDF]
In vehicle-to-grid applications, the battery charger of the electric vehicle (EV) needs to have a bidirectional power flow capability. Galvanic isolation is necessary for safety.
Baranwal, Rohit +4 more
core +2 more sources
This article investigates the peak-to-peak output voltage ripple for the four-switch buck+boost (FSBB) converter under four-segment inductor current mode zero-voltage switching (ZVS) modulation strategies in a comprehensive way.
Guangyao Yu, Jianning Dong, Pavol Bauer
doaj +1 more source

