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A new H6 neutral point clamped transformerless photo voltaic inverter [PDF]
Scientific ReportsTransformerless photovoltaic (PV) inverters are widely used in grid-connected solar energy systems due to their high efficiency and compact design. However, conventional transformerless inverters suffer from oscillating common-mode voltage (CMV), which ...
Ahmad Syed +3 more
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Average Neutral Point Current Control Strategy in Neutral-Point-Clamped Converters [PDF]
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia), 2021 A control strategy for regulating the average neutral point (NP) current in neutral-point-clamped (NPC) converters is proposed in this paper. Previously presented strategies in the literature control the instantaneous NP current. However, the instantaneous maximum NP current profile is time-varying, which results in difficulties to regulate the average
Neha Beniwal +6 more
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Stress Distribution Law of Full-Length Anchorage Bolt in Rectangular Roadway
Frontiers in Earth Science, 2022 To study the evolution law of axial force and shear stress of a full-length anchorage bolt in a rectangular roadway during roadway driving and working face mining, based on the stress analysis of the bolt, considering the elastic parameters and geometric
Dongdong Pang +7 more
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Clear Night Sky Polarization Patterns Under the Super Blue Blood Moon
Atmosphere, 2020 Investigating celestial polarization patterns in the case of different environments is important for exploring the atmospheric radiative transfer mechanism.
Yueting Yang +5 more
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IEEE Access, 2021 Information obtained about magnetic anisotropy via neutral point voltage measurements can be used to estimate the position of synchronous and induction machines at all speeds including standstill.
Klaus Schuhmacher +3 more
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Comparative Analysis of Hybrid NPP and NPC Seven-Level Inverter With Switched-Capacitor
IEEE Access, 2021 In this work, the general structure of a hybrid NPP/NPC seven-level inverter is derived from a dual-T-type inverter. Compared with the original structure, the general structure is more flexible as there are four specific circuit configurations to meet ...
Yuanmao Ye +4 more
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Neutral Point in Haptic Perception of Softness [PDF]
, 2022 AbstractHaptic perception of objects’ softness plays an important role in the identification and interaction with objects. How softness is represented in the brain is yet not clear. Here we investigated whether there is a neutral point in the perceptual representation of haptically perceived softness relative to which the objects are represented as ...
Anna Metzger, Anna Lotz, Knut Drewing
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POWER SYSTEM NEUTRAL POINT GROUNDING
Journal of Energy : Energija, 2022 The method used for neutral point grounding is very important for power network operation. There are many ways of grounding, which are used in practice, and the decision on the method of neutral grounding depends on the situation in the network connected to the substation.
DRANDIĆ, ANA +3 more
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Quantum Point Contacts for Neutral Atoms [PDF]
Physical Review Letters, 1999 We show that the conductance of neutral atoms through a tightly confining waveguide constriction is quantized in units of lambda_dB^2/pi, where lambda_dB is the de Broglie wavelength of the incident atoms. Such a constriction forms the atom analogue of an electron quantum point contact and is an example of quantum transport of neutral atoms in an ...
Thywissen, J. H. +2 more
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Energies, 2023 Three-level neutral-point clamped (NPC) inverters are widely used in the new energy power generation, motor drive, and many other occasions. However, the neutral-point voltage imbalance of an NPC inverter will affect the output of the inverter system ...
Guo Chen +4 more
doaj +1 more source