نتایج جستجو برای: power system dynamics

تعداد نتایج: 2909408  

2016
Thomas Catanach Manuel Garcia Scott Vander Wiel Russell Bent Earl Lawrence

Fast state estimation and system identification are essential to the reliability of the increasingly complex power system. Current estimation, on slower, steady-state, time scales does not model dynamics; however, with the deployment of phasor measurement units, faster estimation is now possible. We introduce a robust state estimator that learns the dynamic state of the power system on fast tim...

Journal: :Neural networks : the official journal of the International Neural Network Society 2007
Ganesh K. Venayagamoorthy

With deregulation and growth of the power industry, many power system elements such as generators, transmission lines, are driven to operate near their maximum capacity, especially those serving heavy load centres. Wide Area Controllers (WACs) using wide area or global signals can provide remote auxiliary control signals to local controllers such as automatic voltage regulators, power system st...

2015
Milos Cvetkovic

Transient stability of electric energy grids is defined as the ability of the power system to remain in synchronism during large disturbances. If the grid is not equipped with controllers capable of transiently stabilizing system dynamics, large disturbances could cause protection to trigger disconnecting the equipment and leading further to cascading system-wide blackouts. Today’s practice of ...

2015
Feifei Bai Yong Liu Yilu Liu Kai Sun Navin Bhatt Alberto Del Rosso Xiaoru Wang

Understanding power system dynamics is essential for online stability assessment and control applications. Global positioning system-synchronised phasor measurement units and frequency disturbance recorders (FDRs) make power system dynamics visible and deliver an accurate picture of the overall operation condition to system operators. However, in the actual field implementations, some measureme...

Journal: :IEEE Trans. Industrial Electronics 2001
Namho Hur Jinhwan Jung Kwanghee Nam

We propose a new converter control scheme for a converter–inverter system. The strategy is to fully utilize the inverter dynamics in controlling the converter dynamics. We obtain the power dynamics for both converter and inverter systems, and control the converter power so that it matches the required inverter power exactly. Then, in the ideal case, no power flows through the dc-link capacitors...

Journal: :مهندسی برق و الکترونیک ایران 0
reza gholizadeh roshanagh sajad najafi ravadanegh

the ultimate goal of power system operation and planning is to increase power system reliability which enforces interconnected operation of power system. as a result of power system interconnection, the inter-area oscillation under different disturbances may cause power system partial or total blackout. dc-segmentation of interconnected power systems is a solution in which the topology of the n...

2016
Hamzeh Beiranvand Esmaeel Rokrok Mahmoud Reza Shakarami

Power System Dynamics Course (PSDC) is one of the most important courses in the MSc/M.Tech program of Electrical Engineering at most of the universities worldwide. However, due to the difficulties exist in this course, students are unable to learn the power systems dynamics, properly. This paper introduces a tool based on MATLAB Software that is useful for educating PSDC, effectively. A tool ba...

The important and hazardous of the rescue mission in oceans and seas, autonomous vessels now are one of the most appropriate applications among others. Due to safety, reliability, and accessibility of smart, Autonomous and Cooperative vessels today has attracted much attention from the industry. Regard to the complication of the mono vessel for different objects, the multi- agent system was pro...

ژورنال: مهندسی دریا 2011
رحیمیان, مسعود, سیف, محمد سعید, صیادی, حسن ,

In recent years, unmanned vehicles have intensively been developed to reduce risk on human life for marine applications. Predicting the dynamics behavior of an autonomous underwater vehicle is important during the vehicle’s design phase. In other words to design an AUV, one must clarify its maneuverability and controllability based on a mathematical model. The mathematical model contains variou...

2011
B. NAGU P. V. R. RAO

In this paper, investigation is carried out for the improvement of power system stability by utilizing auxiliary controls for controlling HVDC power flow. The current controller model and the line dynamics are considered in the stability analysis. Transient stability analysis is done on a multi-machine system, where, a fuzzy logic controller is developed to improve the stability of the power sy...

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