Results 41 to 50 of about 8,621,420 (153)

Negotiating participation and power in a school setting: the implementation of active citizenship within the undergraduate sociology curriculum [PDF]

, 2005
Since the Crick Report, active citizenship has been promoted as a vehicle for enhancing community involvement and political literacy among school and higher education students.
Koster, Shirley, Gifford, C., Shirley Koster, Paul Watt, Clark, Wayne, Wayne Clark, Clarke, Wayne, Watt, P., Kloster, Shirley, Chris Gifford, Gifford, Chris, Clark, W., Watt, Paul, Koster, S.   +13 more
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Harmonic‐Amplitude Modulation Strategy for PtP‐VSC‐HVDC Links Providing Frequency Support

Digital Twins and Applications
This paper presents a communication‐free frequency support strategy for point‐to‐point voltage source converter high‐voltage direct‐current (PtP‐VSC‐HVDC) links.
Arcadio Perilla, Jose Luis Rueda Torres
doaj   +1 more source

Active mode subclock power gating

This paper presents a technique, called subclock power gating, for reducing leakage power during the active mode in low performance, energy-constrained applications.
Merrett, Geoff V., Mistry, Jatin, Biggs, John, Myers, James, Flynn, David, Al-Hashimi, Bashir   +5 more
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Two Degree of Freedom Resonant Structure for Robust Current Control and Active Power Filtering [PDF]

, 2005
This paper introduces a novel two degree of freedom resonant control structure for current control in a stationary reference frame in one- or three-phase power electronics systems. The main focus is put on the design of the controller for robust tracking
N. Bajcinca, D. Naunin, Naunin, Dietrich, Bajcinca, Naim   +3 more
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Fast Transient Modulation for a Step Load Change in a Dual-Active-Bridge Converter with Extended-Phase-Shift Control

Energies, 2018
The manipulation of the bidirectional power in a dual-active-bridge converter relies on the adjustment of several phase-shift angles. Improper implementation of those adjustments during the transient process of a step load change may induce transient DC ...
Chuan Sun, Xiaodong Li
doaj   +1 more source

Long-Run Purchasing Power Parity with Asymmetric Adjustment: Evidence from Mainland China and Taiwan [PDF]

This study applies threshold cointegration test advanced by Enders and Siklos (2001) to investigate the properties of asymmetric adjustment in long-run purchasing power parity (PPP) for both Mainland China and Taiwan during the January 1986 to October ...
Chang, Tsangyao, Chin-Ping Yu, Yang-Cheng Lu   +2 more
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Active/reactive market model based on adjustment bids and integrating capacitor banks and transformer taps

, 2008
This paper describes a mathematical model and the developed solution algorithm to solve an integrated active/reactive dispatch while retaining competitive aspects.
João Tomé Saraiva, Mário Helder Gomes
core   +1 more source

Drivetrain torsional vibration analysis and mitigation of grid-forming DFIG-based wind turbine generators

International Journal of Electrical Power & Energy Systems
Insufficient drivetrain damping can cause torsional vibrations of doubly-fed induction generator (DFIG)-based wind turbine generators (WTGs), affecting their stability and safety.
You Ying, Xiaotian Yang, Zhihao Wang, Xuesong Gao, Haoan Yu, Jiahe Xu, Weiyu Bao, Lei Ding   +7 more
doaj   +1 more source

A Post-Contingency Power Flow Control Strategy for AC/DC Hybrid Power Grid Considering the Dynamic Electrothermal Effects of Transmission Lines

IEEE Access, 2019
The blocking of large-capacity HVDC or the tripping of AC transmission lines by accident will cause power flow transfer sharply and increase the risk of cascading faults in AC/DC hybrid power grid.
Jian Hu, Jian Wang, Xiaofu Xiong, Jing Chen   +3 more
doaj   +1 more source

Seasonal adjustment and cointegration [PDF]

We examine the effects of seasonal adjustment filters on the size and power of ADF and PP residual-based cointegration tests via a Monte Carlo and an empirical application.
Jesus Otero, Jeremy Smith
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