Results 31 to 40 of about 6,578,394 (152)
Modified grey wolf optimisation based reduced device count 17‐level hybrid multilevel inverter
IET Power Electronics, 2021 A 17‐level hybrid multilevel inverter (HMLI) using modified grey wolf optimisation (MGWO) is proposed here. The proposed HMLI requires only a single dc source and a lesser number of circuit elements to obtain a multilevel voltage level. The proposed HMLI
Abhinandan Routray +2 more
doaj +1 more source
Current Commutation in a Switched Lithium‐Ion Cell used in Cascaded Half‐Bridge Multilevel Inverters
IET Power Electronics, 2021 In order to improve the efficiency of battery electric vehicles, the utilization of reconfigurable batteries and multilevel inverters based on low‐voltage Si MOSFETs gains growing attention. Focusing on the half‐bridge as basic switching unit, this paper
Christian Hanzl +5 more
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Optimal switching sequence model predictive control for three‐level NPC grid‐connected inverters
IET Power Electronics, 2021 In order to concentrate the frequency spectrum of the output voltage and improve the quality of grid currents for the three‐level neutral point clamped inverter with the model predictive control, this paper proposes an optimal switching sequence model ...
Jianguo Lyu +5 more
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A transformerless active voltage quality regulator with the novel three‐leg circuit
IET Power Electronics, 2021 Voltage sags and momentary interruptions of power are the most severe voltage disturbances. Here, a tansformerless active voltage quality regulator with the novel three‐leg circuit is proposed to mitigate long duration and deep voltage sags.
Sen Wang +5 more
doaj +1 more source
Inverter open circuit fault diagnosis based on residual performance evaluation
IET Power Electronics, 2023 Because of uncertain random noise and unknown disturbance, the observer‐based inverter fault diagnosis meets the problems of large deviation of current observation value and high false alarm rate.
Tianyu Sun +5 more
doaj +1 more source
, 1998 The following topics are dealt with: AC-DC converter; power flow solution; harmonic solution; three-phase power and harmonic flow; electromagnetic transient simulation; electromechanical stability and transient converter ...
Bruce Smith +3 more
core +1 more source
The influence of frequency of AC component on space charge behaviours in polyethylene under combined AC and DC electric fields [PDF]
, 2014 Combined ac and dc voltages may occur in high voltage power transmission system, which bring challenges to the dielectric materials. Generally speaking, space charge is well recognised under high voltage dc conditions but has received little attention ...
C. Zhou +3 more
core +2 more sources
IET Power Electronics, 2021 This paper presents a comparative analysis of the continuous space vector pulse width modulation and the discontinuous space vector pulse width modulation in terms of the switching losses and current ripple reduction for the unbalanced two‐phase four‐leg
Kaset Muangthong, Chakrapong Charumit
doaj +1 more source
Multipulse improved-power-quality AC–DC convertors for vector-controlled induction-motor drives
, 2006 The paper deals with polygon autotransformer-based 12-pulse and 18-pulse AC-DC convertors feeding vector-controlled induction-motor drives (VCIMDs) for improving power quality at the point of common coupling (PCC).
Singh, B., Garg, V., Bhuvaneswari, G.
core +1 more source
IET Power Electronics, 2021 This paper proposes a common‐mode voltage injection‐based pulse width modulation strategy to optimize the AC current ripple of parallel interleaved converters.
Shengfu Liu +4 more
doaj +1 more source