Results 21 to 30 of about 30,101 (306)
A Comparative Study of Physicochemical, Dielectric and Thermal Properties of Pressboard Insulation Impregnated with Natural Ester and Mineral Oil [PDF]
, 2011 Natural ester is considered to be a substitute of mineral oil in the future. To apply natural ester in large transformers safely, natural ester impregnated solid insulation should be proved to have comparable dielectric strength and thermal stability to ...
Yang, Lijun +9 more
core +1 more source
Overloading Scenario in Solid State Transformer [PDF]
2020 11th International Renewable Energy Congress (IREC), 2020 Nowadays, solid state transformer (SST) is been considered as an alternative option in smart grid where additional ancillary services that cannot be provided by conventional line frequency transformer (LFT) are required. However, the power transmission capability of SST is limited to that of its semiconductor switches which are power electronics ...
Nasiru B. Kadandani +3 more
openaire +1 more source
Planar transformer isolated DC-DC Converter for Solid-State Transformer
, 2020 The demand for high frequency, high power density and high efficiency on power converters has been increasing through the years. Solid state transformer (SST), which is typically formed by three stages, one being DC/AC inverter, which is controllable ...
Zhang, Ruiwen
core +2 more sources
Solid-state transformer based on modular multilevel converters
The Journal of Engineering, 2019 A new highly compact topology for solid-state transformers is presented. It is based on modular multilevel converters and, therefore, has their usual advantages such as superior voltage shape, high reliability, and scalability.
Patrick Himmelmann, Marc Hiller
doaj +1 more source
Hybrid-Frequency Cascaded Full-Bridge Solid-State Transformer
IEEE Access, 2019 Modular solid-state transformers (SSTs) are suitable for various voltage- and power-level applications. State-of-the-art modular-SST topologies contain a considerable quantity of high-frequency transformers (HFTs) and power switches, thereby increasing ...
Xueyin Zhang +4 more
doaj +1 more source
Investigation of the Solid-State Polymorphic Transformations of Piracetam [PDF]
Crystal Growth & Design, 2012 The solid-state polymorphic transformations of 2-oxo-1-pyrrolidine acetamide (Piracetam) were investigated using a combination of off-line and on-line techniques; Differential Scanning Calorimetry (DSC), High Temperature X-ray Diffraction (HT-XRD), thermal analysis and Hot Stage Optical Microscopy.
Maher, Anthony +5 more
openaire +1 more source
Review of solid-state linear transformer driver technology
Matter and Radiation at Extremes, 2018 This paper is a review of recent developments in solid-state linear transformer driver (SSLTD) for applications to pulsed power generation. It summarizes the technological advances reported by previous publications and interprets the experimental ...
Weihua Jiang
doaj +1 more source
Energies, 2021 Nowadays, the demand for high power converters for DC applications, such as renewable sources or ultra-fast chargers for electric vehicles, is constantly growing. Galvanic isolation is mandatory in most of these applications.
Alessandro La Ganga +2 more
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A single‐stage AC‐AC solid‐state transformer with ZVS operation
IET Power Electronics, 2021 Solid‐state transformer (SST) is an attractive concept, which provides galvanic isolation and voltage scaling by means of a medium‐frequency link.
Hui Wang +8 more
doaj +1 more source
Energies, 2018 The winding is the core component of a transformer, and the technology used to diagnose its current state directly affects the operation and maintenance of the transformer.
Xiaomu Duan +4 more
doaj +1 more source