Search Results - subject:"damping"

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Bars, lines and points : the effect of graph format on judgmental forecasting

Reimers, Stian; Harvey, Nigel - In: International journal of forecasting 40 (2024) 1, pp. 44-61

Persistent link: https://www.econbiz.de/10014450237

Mechanism Analysis and Experimental Validation of Employing Superconducting Magnetic Energy Storage to Enhance Power System Stability

Shi, Xiaohan; Wang, Shaorong; Yao, Wei; Waqar, Asad; … - In: Energies 8 (2015) 1, pp. 656-681

compensation method to improve the damping of the SMIB system. The influence of factors, such as SMES location, transmission system … reactance, the dynamic characteristics of SMES and the system operating point, on the damping improvement of SMES, is … SMES device can effectively enhance the damping, as well as the transient stability of the power system. …

Persistent link: https://www.econbiz.de/10011123676

Research on Shaft Subsynchronous Oscillation Characteristics of Parallel Generators and SSDC Application in Mitigating SSO of Multi-Generators

Wang, Shen; Xu, Zheng - In: Energies 8 (2015) 3, pp. 1644-1662

applying supplemental subsynchronous damping controller (SSDC). SSDC application in mitigating SSO of single-generator systems …

Persistent link: https://www.econbiz.de/10011186331

An Optimal Reactive Power Control Strategy for a DFIG-Based Wind Farm to Damp the Sub-Synchronous Oscillation of a Power System

Zhao, Bin; Li, Hui; Wang, Mingyu; Chen, Yaojun; Liu, … - In: Energies 7 (2014) 5, pp. 3086-3103

This study presents the auxiliary damping control with the reactive power loop on the rotor-side converter of doubly …. These generators are connected to a series capacitive compensation transmission system. First, the damping effect of the … speed and the output reactive power of the wind farms was introduced to derive the analytical expression of the damping …

Persistent link: https://www.econbiz.de/10010764860

A Systematic Method for Designing a PR Controller and Active Damping of the LCL Filter for Single-Phase Grid-Connected PV Inverters

Zhang, Ningyun; Tang, Houjun; Yao, Chen - In: Energies 7 (2014) 6, pp. 3934-3954

peak of the LCL filter may introduce instability in the whole system. Therefore, damping must be introduced to improve the … control of the system. Considering the controller and the LCL filter active damping as a whole system makes the controller … systematic method for designing controller parameters and the capacitor current feedback coefficient factor of LCL filter active-damping …

Persistent link: https://www.econbiz.de/10010787065

Adaptive Noise Reduction System

Ropus, Ivana; Alar, Vesna; Runje, Biserka - In: Interdisciplinary Description of Complex Systems - … 11 (2013) 1, pp. 153-160

Noise is an all-present environment pollutant, considered to be one of the greatest contemporary pollutants. World-wide, co-ordinated actions are conducted in order to develop systems which minimise the noise influence onto society. In this article we argue that novel approach to suppression of...

Persistent link: https://www.econbiz.de/10010904434

Adaptive Wide-Area Damping Control Scheme for Smart Grids with Consideration of Signal Time Delay

Cai, Guowei; Yang, Deyou; Liu, Cheng - In: Energies 6 (2013) 9, pp. 4841-4858

delay could worsen the damping effect and deteriorate the system stability. In the presented study, the subspace system … novel adaptive wide-area damping control scheme for online tuning of the wide-area damping controller (WADC) parameters … effectiveness of the proposed adaptive wide-area damping control scheme. …

Persistent link: https://www.econbiz.de/10010692419

Supplementary Controller Design for SSR Damping in a Series-Compensated DFIG-Based Wind Farm

Wu, Zaijun; Zhu, Chanxia; Hu, Minqiang - In: Energies 5 (2012) 11, pp. 4481-4496

for SSR damping. The validity and effectiveness of the proposed supplemental control are demonstrated on the IEEE first …

Persistent link: https://www.econbiz.de/10010668162

Bienenfeld’s approximation of production prices and eigenvalue distribution: some more evidence from five European economies

Iliadi, Fotoula; Mariolis, Theodore; Soklis, George; … - Volkswirtschaftliche Fakultät, … - 2012

This paper tests Bienenfeld’s polynomial approximation of production prices using data from ten symmetric input-output tables of five European economies. The empirical results show that the quadratic formula works extremely well and its accuracy is connected to the actual distribution of the...

Persistent link: https://www.econbiz.de/10009647410

Optimal Fourier inversion in semi-analytical option pricing

Lord, Roger; Kahl, Christian - 2007 - This version: 10th May 2007

At the time of writing this article, Fourier inversion is the computational method of choice for a fast and accurate calculation of plain vanilla option prices in models with an analytically available characteristic function. Shifting the contour of integration along the complex plane allows for...

Persistent link: https://www.econbiz.de/10011349177