Results 41 to 50 of about 25,508 (290)
Study on Dynamic Characteristics of UHVDC System under Hierarchical Infeed Mode with STATCOM
Advances in Electrical and Electronic Engineering, 2021 This paper focuses on the investigation of the dynamic characteristics of Ultra High Voltage Direct Current (UHVDC) system Under Hierarchical Infeed Mode (UHVDC-HIM) with Static Synchronous Compensator (STATCOM). The STATCOM at the inverter side of UHVDC-
Atiq Ur Rehman +4 more
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Schrodinger representation for the polarized Gowdy model [PDF]
, 2006 The polarized ${\bf T}^3$ Gowdy model is, in a standard gauge, characterized by a point particle degree of freedom and a scalar field degree of freedom obeying a linear field equation on ${\bf R}\times{\bf S}^1$.
Torre, C. G.
core +4 more sources
Control system for a superconducting rectifier using a microcomputer [PDF]
, 1981 Within the scope of a research program of superconducting rectifiers software is being developed to take care of the control of such systems. The hard-ware architecture which interferes with the in and output signals is based on a LSI-11/2 microprocessor
Caspari, Meindert +4 more
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The HVDC commutation failure mechanism impacted by harmonics and its suppression method
Frontiers in Energy ResearchHarmonics are an important cause of voltage distortion, and voltage reduction and voltage distortion are the main causes of commutation failure. But most of the current research studies on commutation failure are based on the drop in fundamental voltage ...
Guojiang Zhang +4 more
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British Educational Research Journal, EarlyView.Abstract Recruiting and retaining school leaders is a challenge in many systems worldwide. Previous research has identified three distinct ways in which succession planning can be conceptualised and approached: a ‘pipeline’ approach seeks to match supply and demand for the posts that need filling; a ‘pool’ strategy involves proactively identifying and ...
Toby Greany +3 more
wiley +1 more source
Commutation Failure Predictive Control Based on Fast AC Voltage Measurement in LCC-HVDC
IEEE Access, 2023 To inhibit commutation failure (CF), in this paper, the influence factors of CF were analyzed, and considering different fault types and different valves, the mathematical expression of extinction angle was deduced.
Guodong Huang +5 more
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Periodicity in Rank 2 Graph Algebras
, 2007 Kumjian and Pask introduced an aperiodicity condition for higher rank graphs. We present a detailed analysis of when this occurs in certain rank 2 graphs. When the algebra is aperiodic, we give another proof of the simplicity of $\ca(\Fth)$. The periodic
Cuntz +13 more
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Universal fault-tolerant gates on concatenated stabilizer codes [PDF]
, 2016 It is an oft-cited fact that no quantum code can support a set of fault-tolerant logical gates that is both universal and transversal. This no-go theorem is generally responsible for the interest in alternative universality constructions including magic ...
Chuang, Isaac L. +2 more
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HVDC System Commutation Failure Transient Judgement Method
DEStech Transactions on Engineering and Technology Research, 2019 In order to forecast the commutation failure of HVDC system, this paper analyzes the specific reasons for the rise of the direct current in the case of the receiving end failure of HVDC system and makes a quantitative analysis, It is found that the capacitance of direct transmission line discharging is the main factor of the increasing of the direct ...
Yong CUI +6 more
openaire +2 more sources
Carbon Energy, EarlyView.This review systematically summarizes recent progress in electrolyte‐regulated aqueous Zn–I2 batteries (AZIBs). It outlines the fundamentals of AZIBs along with their main challenges, and then analyzes electrolyte‐engineering strategies that improve both two‐ and four‐electron reactions.
Yucong Wang +10 more
wiley +1 more source