Results 61 to 70 of about 420,105 (198)

Multi-Parameter Sensitivity Analysis and Engineering Configuration Optimization Strategies for Sheath Protectors in 220 kV Cable Systems Based on Overvoltage Characteristic Analysis

open access: yesEnergies
This paper focuses on 220 kV cable sheath overvoltage caused by three typical operating conditions: harmonics, short-circuits, and lightning strikes. A sheath voltage simulation model on the 220 kV side is developed in PSCAD.
Xiaoyan Ji, Yong Liu, Qiran Li
doaj   +1 more source

Aspects of ultra-high voltage half-wavelength power transmission technology

open access: yesGlobal Energy Interconnection, 2018
The necessity of large-scale and long-distance power transmission in future energy development is analyzed and some application scenarios of ultra-high voltage (UHV) half-wavelength transmission (HWLT) system are presented in the paper.
Yutian Liu   +3 more
doaj   +1 more source

Research on Opening Reignition Characteristics and Suppression Measures of 750 kV AC Filter Circuit Breakers

open access: yesEnergies
The operation of converter valves in converter stations often results in high reactive power consumption and harmonic generation, necessitating measures to maintain reactive power balance and ensure power quality. To achieve this, the filter bank circuit
Jianguo Zhang   +6 more
doaj   +1 more source

EXPRESS: Can location cues facilitate attentional suppression? [PDF]

open access: yes
The spatial cueing paradigm has illustrated that location cues result in attentional enhancement of target stimuli. However, evidence is mixed on whether proactive attentional suppression can be cued in a similar way. In this registered report, we used a
Poole, Daniel   +2 more
core   +1 more source

Development of a compact excavator mounted dust suppression system [PDF]

open access: yes, 2013
This paper reports on the investigation of an excavator mounted dust suppression system for demolition and construction activities. Ever increasing pressure is placed on contractors to improve their environmental performance, especially dust emissions ...
Cheung, Wai Ming, Wallace, Kieran
core   +1 more source

Adaptive transient overvoltage control strategy for wind farm based on data‐driven method

open access: yesIET Electric Power Applications
To achieve the transient overvoltage suppression of doubly fed induction generator (DFIG) terminals and the point of common coupling (PCC) in the wind farm (WF), an adaptive overvoltage control strategy based on data‐driven approach is proposed. Firstly,
Xiaofei Liu, Pei Zhang
doaj   +1 more source

VCT-AOC Comprehensive Method to Suppress High-Frequency Resonance and Low-Frequency Oscillation in Railway Traction Power Supply System

open access: yesIEEE Access, 2019
Aiming at the high-frequency resonance (HFR) and low-frequency oscillation (LFO) phenomena in high-speed railways, a comprehensive suppression method named voltage constant transient active oscillation compensation (VCT-AOC) is proposed.
Xinyu Zhang   +3 more
doaj   +1 more source

An investigation into the role of thought suppression in the retrieval of autobiographical memories [PDF]

open access: yes, 2009
This program of research was designed to examine the role of thought suppression in the retrieval of autobiographical memories (ABMs). The principal theory proposed here is that thought suppression is an important mechanism in explaining certain ABM ...
Neufeind, Julia
core   +2 more sources

Transient AC Overvoltage Suppression Orientated Reactive Power Control of the Wind Turbine in the LCC-HVDC Sending Grid

open access: yesCES Transactions on Electrical Machines and Systems
High-voltage direct current (HVDC) transmission is a crucial way to solve the reverse distribution of clean energy and loads. The line commutated converter-based HVDC (LCC-HVDC) has become a vital structure for HVDC due to its high technological maturity
Bo Pang   +6 more
doaj   +1 more source

Probabilistic Risk Assessment and Robust MOV–RC Design for High-Frequency Overvoltage Under Random Multiple Reignition in 35-kV Shunt Reactors

open access: yesIEEE Access
Circuit-breaker reignition during the switching of 35 kV shunt reactors may excite high-frequency oscillations between the reactor equivalent inductance and the ground capacitance of cables, busbars, and connected equipment, resulting in shortduration ...
Yanan Zhang   +5 more
doaj   +1 more source

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