Results 291 to 300 of about 10,147,983 (339)
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IEEE Transactions on Sustainable Energy, 2019
Utilities across the world are seeing increased penetration of inverter-based renewable generation (RG) in their systems. These RGs have ride through curves programmed in them which define operating conditions that need to be satisfied during electrical ...
C. Mishra +3 more
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Utilities across the world are seeing increased penetration of inverter-based renewable generation (RG) in their systems. These RGs have ride through curves programmed in them which define operating conditions that need to be satisfied during electrical ...
C. Mishra +3 more
semanticscholar +1 more source
Assessment of propeller influence on lateral-directional stability of multiengine aircraft
Journal of Aircraft, 1981Using a twin-engine turboprop aircraft, flight measurements were made to supplement the very limited data on the effects of propellers on the individual lateral static and dynamic stability derivatives. It is found that the propeller slipstream significantly affects the wing contribution to the derivative lv.
R. S. van Rooyen, M. E. Eshelby
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Direct Transient Stability Assessment with Two-Axis Generator Models
IFAC Proceedings Volumes, 1990Abstract The recently developed Extended Equal Area Criterion (EEAC) method has proved to be an accurate and extremely fast transient stability assessment method for the classical model. This model may be too rough for some practical engineering uses.
Yusheng Xue, Yiwei Zhang
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Fast methods for direct assessment of power system transient stability
IEE Proceedings C Generation, Transmission and Distribution, 1988The paper presents a new and simple method for transient stability assessment of multimachine power systems. The criterion for assessment is given in terms of the rate of change of kinetic energy of individual machines subsequent to fault clearance. The basic concepts and the mathematical formulation of the method are summarised.
F.J. Al Azzawi +2 more
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Biochar stability assessment methods: A review.
Science of the Total Environment, 2019Biochar is being developed as a candidate with great potential for climate change mitigation. Sequestering biochar carbon in soil contributes greatly to the reduction of greenhouse gases emissions, and biochar stability is the most decisive factor that ...
Li-Jian Leng +4 more
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A direct method for frequency stability assessment of power systems
APSCOM 2000 - 5th International Conference on Advances in Power System Control, Operation and Management, 2000A direct method for frequency stability assessment of power systems is proposed in this paper, which is based on the latest Jacobian matrix of the Newton-Raphson load flow calculation. The method can directly calculate the final system frequency after the last switching without step-by-step integral, and the system frequency stability can be determined.
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Static and seismic stability assessment of 3D slopes with cracks
, 2020The majority of extant analyses on slope stability assumed a two-dimensional plane-strain condition and/or an intact slope. However, slope failures typically exhibit three-dimensional (3D) characteristics and cracks are commonly present in cohesive ...
Zheng-Wei Li +2 more
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Critical Energy for Direct Transient Stability Assessment of a Multimachine Power System
IEEE Transactions on Power Apparatus and Systems, 1984This paper describes a criterion for determining the critical energy used in direct transient stability assessment of a multimachine power system using the transient energy function method. This criterion provides a method by which the controlling unstable equilibrium point (u.e.p.), for the disturbance under investigation, is identified.
A. A. Fouad, Vijay Vittal, Tae Kyoo Oh
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A Hybrid Method for Fast Rotor-Angle Stability Assessment
IEEE Systems JournalThis article proposes a novel hybrid time-domain and direct stability method for rotor-angle stability assessment, aiming to improve the efficiency of existing approaches.
Mohamed Ramadan Younis, Reza Iravani
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IEEE Transactions on Power Systems, 2019
With increase of practical power system complexity, power system online stability assessment and control is more and more important. Application of the traditional model-driven methods is always limited by contradiction between accuracy and efficiency ...
Qi Wang, Feng Li, Yi Tang, Yan Xu
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With increase of practical power system complexity, power system online stability assessment and control is more and more important. Application of the traditional model-driven methods is always limited by contradiction between accuracy and efficiency ...
Qi Wang, Feng Li, Yi Tang, Yan Xu
semanticscholar +1 more source