Results 1 to 10 of about 57 (51)
Research on the Equivalent Virtual Space Vector Modulation Output of Diode Clamped N-level Converter under Multi-Modulation Carrier Modulation [PDF]
Energies, 2020 Diode-clamped multi-level converters have DC-side capacitors in series, which will lead to the unbalance of DC-side capacitor voltage, the distortion of the output waveform, the increase of total harmonic distortion (THD), and even the damage of ...
Yingjie He +3 more
doaj +5 more sources
Common-Mode Voltage Elimination in Multilevel Power Inverter-Based Motor Drive Applications [PDF]
, 2022 [EN] The industry and academia are focusing their efforts on finding more efficient and reliable electrical machines and motor drives. However, many of the motors driven by pulse-width modulated converters face the recurring problem of common-mode ...
Andreu Larrañaga, Jon +5 more
core +4 more sources
Three-Phase Hybrid Converter With Simultaneous DC and AC Outputs
IEEE Access, 2023 A novel topology of three-phase hybrid converter (TP-HC) which can supply simultaneously both DC and AC loads is presented. This topology is obtained by adding three switches to T-type three-level inverter.
Rutian Wang, Xuedong Wu, Xiuyun Wang
doaj +1 more source
International Transactions on Electrical Energy Systems, Volume 2023, Issue 1, 2023., 2023 In this research, a solar photovoltaic system with maximum power point tracking (MPPT) and battery storage is integrated into a grid‐connected system using an improved three‐level neutral‐point‐clamped (NPC) inverter. An NPC inverter with adjustable neutral‐point clamping may achieve this result.
D. Ravi Kishore +7 more
wiley +1 more source
IET Power Electronics, Volume 15, Issue 14, Page 1480-1489, 4 November 2022., 2022 Abstract An optimal zero‐sequence voltage injection‐based common‐mode voltage reduction pulse‐width modulation (CMVRPWM) for the reduction of common‐mode voltages (CMVs) in both amplitude and third‐order component is proposed in this paper. On the basis of general symmetrical switching patterns of CMVRPWM, a constrained mathematical programming model ...
Xiang Wu +7 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 Power quality (PQ) is a key issue, particularly for technologically advanced process equipment, whose performance mainly depends on the quality of supply. Problems with PQ such as voltage swells/sags, interruptions, and harmonics are defined by any voltage, current, or frequency abnormalities causing damage or failure of the end‐user equipment. Outages
Devalraju Prasad +2 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 This paper proposes a novel 3‐phase asymmetric 3‐level T‐type NPC inverter and studies its PWM performance using a virtual space vector pulse width modulation control strategy. Firstly, the mathematical model and characteristics of this economical topology are described.
Nam Xuan Doan +2 more
wiley +1 more source
A Carrier-Based Discontinuous PWM for Single and Parallel Three-Level T-Type Converters with Neutral-Point Potential Balancing [PDF]
, 2021 The three-level converters have an inherent problem of the neutral-point (NP) voltage unbalance due to the split dc-link capacitors. This NP voltage unbalance degrades the output voltage/current waveform quality.
Haruna, Josiah +4 more
core +1 more source
Neutral‐Point Potential Balance Control Strategy on Three‐Level Active Power Filters
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 This paper presents a simplified strategy in neutral‐point (NP) potential balance of the neutral‐point‐clamped (NPC) three‐level three‐wire active power filter (APF). By introducing a simplified carrier‐based pulse width modulation (CB‐PWM) strategy and analysing the occurrence mechanism of NP potential unbalance, we proposed a NP potential balancing ...
Fei Li +6 more
wiley +1 more source
IEEE Access, 2020 In this paper, a carrier-based modulation strategy with planned zero sequence voltage (ZSV) injection for T-type three-level inverter (TLI) is proposed to control neutral point (NP) voltage, which is simple to be implemented.
Jinping Wang +4 more
doaj +1 more source