Results 41 to 50 of about 5,302 (227)
Multi‐Layer MTDC Protection: Design and Simulation Assessment
This study proposes a novel multi‐layer protection architecture for multi‐terminal DC systems that separates fault current‐limiting and interruption functions. By combining a thyristor‐based fault current limiter with an active resonance circuit breaker, the scheme significantly reduces peak fault currents and di/dt stress, enabling a more compact ...
Jong‐Geon Lee +3 more
wiley +1 more source
This paper proposes a high‐power hydrogen converter specifically designed for megawatt‐level (MW‐scale) off‐grid hydrogen production systems powered by renewable energy sources. A two‐stage ISOP architecture is adopted to fulfill the demanding requirements of high voltage step‐up, high efficiency, low output ripple, and reliable power regulation.
Rui Zhou +4 more
wiley +1 more source
A damper for ground wind-induced launch vehicle oscillations [PDF]
Prelaunch oscillatory bending deflections of the Atlas/Centaur launch vehicle are restrained by a damper mechanism mounted on the end of a horizontal boom supported from the umbilical tower. A single vertical pin on the vehicle engages the mechanism, and
Bodle, J. G., Hackley, D. S.
core +1 more source
In this paper, a modified isolated Z‐source AC–AC converter with inherent commutation and reduced polarity changer switches is proposed. This converter enables flexible output voltage adjustment, determined by two degrees of freedom—namely, the high‐frequency transformer turns ratio and the duty cycle.
Deniz Zargariafshar +3 more
wiley +1 more source
Brushless direct current (BLDC) motors have become the preferred choice for electric vehicle (EV) power trains due to their exceptional performance attributes, including fast dynamic response, high efficiency, durability, low acoustic noise, and minimized electromagnetic interference (EMI), which is critical for applications sensitive to electrical ...
D. S. Purushothaman +4 more
wiley +1 more source
An analytical method is presented for designing damping resistance to minimize surge voltage in a flyback converter with a dissipative snubber. It is based on given snubber capacitance and resistance.
Sunggyu Jin, Jongwon Choi
doaj +1 more source
A novel inductively coupled RLC damping scheme for eliminating switching oscillations of SiC MOSFET
Severe switching oscillations of SiC MOSFET seriously affect its efficient and reliable application. Herein, a novel inductively coupled RLC damping scheme is proposed to eliminate switching oscillations.
JiaWen Li +4 more
doaj +1 more source
Figure of merit for selecting super-junction MOSFETs in high efficiency voltage source converters [PDF]
Silicon super-junction MOSFETs have very low on-state resistances and fast switching characteristics. However, their use in voltage-source converters is hindered by the poor reverse recovery performance of their body drain diode and an adverse output ...
Anthony, Philip H +3 more
core +2 more sources
Ultrahigh voltage gain ratio, extendable capability, three designing freedom degrees, low current stress, continuous input current, low voltage stress, common ground, load. small‐scale renewable energy applications. ABSTRACT This paper introduces a new expandable non‐isolated quadratic step‐up DC/DC converter with low voltage and current stresses as ...
Sara Hasanpour, Tohid Nouri
wiley +1 more source
Parameter Design of Snubber Circuit for Phase Model of IGCT Converter
IGCT converters have been widely used in medium-voltage high-power drive system. Parameter design of snubber circuit for phase model is closely related to electrical safety, heat loss of device and control performance of converter, which is one of key ...
ZOU Yangju +3 more
doaj

