نتایج جستجو برای: flexible ac transmission systems facts

تعداد نتایج: 1543348  

2009
Ayman Z. Faza Sahra Sedigh Sarvestani Bruce M. McMillin

The advanced electric power grid is a cyber-physical system comprised of physical components such as transmission lines and generators and a network of embedded systems deployed for their cyber control. The objective of this paper is to qualitatively and quantitatively analyze the reliability of this cyber-physical system. The original contribution of the approach lies in the scope of failures ...

Journal: :International journal of recent technology and engineering 2021

Incremental industrialization and urbanization is the cause of enhanced energy use as it increases building new lines more inductive loads. As a result, transmission system losses increased, magnitudes voltage profile values deviated from stated value, resulting in increased cost active power generation. To mitigate these issues, adequate reactive compensation line bus systems should be done. R...

2017
Mitali Chakravorty Sarmila Patra

1Lecturer, Department of Electrical Engineering, Assam Engineering Institute, Assam, India 2Associate Professor, Department of Electrical Engineering, Assam Engineering College, Assam, India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract This paper presents the application of MultiObjective Tea...

Journal: :JCS 2014
S. Thangalakshmi P. Valsalal

The role of Independent System Operator (ISO) in the restructured power industry includes system control, capacity planning, transmission tariff and congestion management; the challenging task being minimizing the congestion. One of the popular techniques used to alleviate congestion is using Flexible AC Transmission Systems (FACTS) devices. The power system generally operates near its rated ca...

2013
N. M. G. Kumar P. Venkatesh Sangamewara Raju

The paper mainly deals about the application of flexible AC transmission system (FACTS) to increase the power transfer capabilities for new operating scenarios in the bulk power systems. With the effect of FACTS technology improves transmission capabilities to reduce the system losses, and also improves the loadability of the power system. FACTs technology allows a better utilization existing t...

H. Shateri, S. Jamali,

This paper presents the effects of instrument transformers connection points on the measured impedance by distance relays in the presence of Flexible Alternating Current Transmission System (FACTS) devices with series connected branch. Distance relay tripping characteristic itself depends on the power system structural conditions, pre-fault operational conditions, and especially the ground ...

2013
Mini K. Namboothiripad

Reactive power compensation in a power distribution network plays a vital role in improving voltage and power system stability. Flexible AC transmission system (FACTS) devices like Static Var Compensators (SVCs) are used to control reactive power generation or absorption in long transmission line. However, these SVCs will introduce harmonic current in to the system due to the operation of thyri...

2014
Narendra Kumar Sanjiv Kumar

The sub synchronous resonance (SSR) is a substantial problem in power system having a steam turbine generator connected to a series compensated transmission system. Flexible AC transmission systems (FACTS) controllers are widely applied to mitigate SSR. In this paper, a bus voltage and line current (BVLC) supplementary subsynchronous damping controller (SSDC) is proposed to alleviate subsynchro...

2016
Kevin M Passino

Loss minimization in power system is an important research issue. Transmission line losses in a power system can be minimized by means of reactive power compensation. The continuous demand in electric power system network has caused it to be heavily loaded leading to voltage instability. This phenomenon has also led to voltage profile depreciation below the acceptable secure limit. The signific...

2007
Ali Ajami S. H. Hosseini G. B. Gharehpetian

The unified power flow controller (UPFC) is a typical FACTS (Flexible AC Transmission Systems) device that is capable of instantaneous control of transmission line parameters. This paper presents the transient model and control system of UPFC. The presented control system enables the UPFC to following the exchanges of line active and reactive power reference values, regulating the DC link and b...

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