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Incorporating synchrophasor technologies into realtime operations greatly increases system operators' situational awareness of grid activities. In this paper, we present a suite of software system (named Grid Stability Awareness System — GSAS) to monitor and analyze power grid real-time stability using wide-area synchrophasor measurements. GSAS consists of five analytical and monitoring tools including...
Load modeling plays an important role in power system stability analysis and planning studies. The parameters of load models may experience variations in different application situations. Choosing appropriate parameters is critical for dynamic simulation and stability studies in power system. This paper presents a method to select the parameters with good generalization ability based on a given large...
Static voltage and angle stability conditions are often associated with singularities of the power flow Jacobian (Saddle Node Bifurcations - SNB). This paper presents an idea of a new method based on SNB conditions written in Cartesian coordinates. These coordinates used instead of the polar coordinates allow non-iterative locating power flow SNB points. A singularity problem is formulated as a linear...
Static voltage and angle stability conditions (and saddle node bifurcations) are often associated with singularities of the power flow Jacobian matrix. This paper presents a new method based on singularity conditions written in Cartesian coordinates to determine static stability boundaries. The Cartesian coordinates instead of the traditional polar coordinates are used, allowing non-iterative locating...
Object-oriented techniques have been applied to power system software development for quite long time. However, object-oriented modeling has several disadvantages for power system stability assessment software. Aspect-oriented modeling (AOM) has become an extension of object-oriented modeling by capitalizing on its advantages while improving the disadvantages. This paper addresses the disadvantages...
The BR algorithm is a novel and efficient method to find all eigenvalues of upper Hessenberg matrices and has never been applied to eigenanalysis for power system small signal stability. This paper analyzes differences between the BR and the QR algorithms with performance comparison in terms of CPU time based on stopping criteria and storage requirement. The BR algorithm utilizes accelerating strategies...
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