Results 31 to 40 of about 46,489 (310)
Reliability study on DC-link capacitor in fault states of VSI in elective vehicle
The Journal of Engineering, 2019 DC-input side of the inverter to balance input and output power, eliminate voltage fluctuation, and reduce the voltage spike in the input side. The reliability study on DC-link capacitor under fault state is critical to the safe operation of the whole ...
Fang Yao +3 more
doaj +1 more source
Voltage balancing in three-level neutral-point-clamped converters via Luenberger observer [PDF]
, 2014 This paper addresses the problems associated with the dc-link capacitor voltages of the three-level neutral-point-clamped power converter: the imbalance of the capacitor voltages as well as the presence of an ac-voltage low-frequency oscillation in the ...
Gordillo Álvarez, Francisco +5 more
core +2 more sources
A New Evaluation Circuit with a Low-Voltage Inverter Intended for Capacitors Used in a High-power Three-phase Inverter [PDF]
, 2016 016 IEEE Applied Power Electronics Conference and Exposition (APEC 2016), March 20-24, 2016, Long Beach, California, USADC-link capacitors in power electronic converters are a major constraint on improvement of power density as well as reliability ...
Hasegawa, Kazunori +2 more
core +4 more sources
Multi‐phase VSI DC‐link capacitor considerations
IET Electric Power Applications, 2019 The modelling, control, switching schemes, novel applications, etc. of multi‐phase voltage source inverters (VSIs) have been studied in recent years. While some DC‐link capacitor considerations have been reported and ripple current assessments presented, the impact of these analyses on system design has not previously been quantified.
Zipan Nie, Nigel Schofield
openaire +1 more source
Wide input-voltage range boost three-level DC-DC converter with quasi-Z source for fuel cell vehicles [PDF]
, 2016 To solve the problem of the mismatched voltage levels between the dynamic lower voltage of the fuel cell stack and the required constant higher voltage (400V) of the DC link bus of the inverter for fuel cell vehicles, a Boost three-level DC-DC converter ...
Li, Jing +6 more
core +1 more source
Journal of Control Science and Engineering, 2023 The reliability and economy of dc-link capacitors are important concerns in multiphase drive systems. Due to the parallel connection of several converters, the dc-link capacitors are subjected to a higher RMS current, and the root mean square (RMS ...
Zhigang Zhang +5 more
doaj +1 more source
Energy Reports, 2022 Direct power smoothing control methods relying on the wind turbine itself have been widely studied to improve wind turbines’ output power quality, and the DC-link voltage control based on the capacitor of the wind power converter is one of them.
Ying Zhu, Zhengzhou Ma, Zhicong Wang
doaj +1 more source
Power loss analysis and measurement of a high efficiency DC-DC converter for EV traction AC drives [PDF]
, 2000 Previous works have shown the power design effectiveness of novel H-bridge-based DC-DC boost conversion structure, as well as the feasibility of real-time DC-link voltage adaptation to inverter load, in battery-supplied AC motor drives.
Fratta, Antonino +3 more
core +1 more source
Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage
International Transactions on Electrical Energy Systems, 2022 One of the main challenges of a four-switch three-phase rectifier (FSTPR) is a DC imbalance in capacitor voltages. On the other hand, under unbalanced grid voltage conditions, unbalanced three-phase input current and the DC-link voltage affect the ...
M. Alizadeh Bidgoli, S. Honarbari
doaj +1 more source
Robust and generic control of full-bridge modular multilevel converter high-voltage DC transmission systems [PDF]
, 2015 This paper presents the theoretical basis of the control strategy that allows the cell capacitor voltage regulation of the full-bridge modular multilevel converter (FB-MMC) to be controlled independent of its dc link voltage.
Adam, Grain Philip +1 more
core +1 more source