An improved direct feedback linearization technique for transient stability enhancement and voltage regulation of power generators

2010 ◽  
Vol 32 (7) ◽  
pp. 809-816 ◽  
Author(s):  
Godpromesse Kenné ◽  
Raphaël Goma ◽  
Homère Nkwawo ◽  
Françoise Lamnabhi-Lagarrigue ◽  
Amir Arzandé ◽  
...  
Keyword(s):  
Feedback Linearization ◽  
Transient Stability ◽  
Voltage Regulation ◽  
Power Generators ◽  
Linearization Technique ◽  
Stability Enhancement ◽  
Direct Feedback

scholarly journals Analysis and design of different controllers for non-linear power systems

2013 ◽  
Vol 2 (3) ◽  
pp. 216
Author(s):  
Rekha Chaudhary ◽  
Arun Kumar Singh
Keyword(s):  
Power Systems ◽  
Power System ◽  
Feedback Linearization ◽  
Transient Stability ◽  
Voltage Regulation ◽  
Analysis And Design ◽  
Non Linear ◽  
Terminal Voltage ◽  
Initial Power ◽  
Direct Feedback

The objective of this paper is to design controller for non-linear power system using Direct Feedback Linearization technique to improve the transient stability and to achieve better voltage regulation. In case of fault in the power system, power angle and the terminal voltage are the parameters which are to be monitored. The simulation has been carried out taking different values of initial power angles and results were obtained for power angle and terminal voltage. To overcome the demerits of DFL-LQ optimal controller and DFL voltage regulator, co-ordinated controller is proposed. Simulation results show that transient stability of a power system under a large sudden fault has been improved by using co-ordinated controller.

scholarly journals A Novel Approach to PID Controller Design for Improvement of Transient Stability and Voltage Regulation of Nonlinear Power System

2016 ◽  
Vol 6 (5) ◽  
pp. 2225
Author(s):  
Rekha Chaudhary ◽  
Arun Kumar Singh ◽  
Saligram Agrawal
Keyword(s):  
Power System ◽  
Pid Controller ◽  
Feedback Linearization ◽  
State Feedback ◽  
Transient Stability ◽  
Controller Design ◽  
Design Method ◽  
Voltage Regulation ◽  
Fault System ◽  
Controlled System

<p>In this paper, a novel design method for determining the optimal PID controller parameters for non-linear power system using the particle swarm optimization (PSO) algorithm is presented. The direct feedback linearization (DFL) technique is used to linearize the nonlinear system for computing the PID (DFL-PID) controller parameters. By taking an example of single machine infinite bus (SMIB) power system it has been shown that PSO based PID controller stabilizes the system and restores the pre-fault system performance after fault is cleared and line is restored. The performance of this controlled system is compared with the performance of DFL-state feedback controlled power system. It has been shown that the performance of DFL-PID controlled system is superior compared to DFL-state feedback controlled system. For simulation MATLAB 7 software is used. </p>

scholarly journals Immersion and Invariance-Based Coordinated Generator Excitation and SVC Control for Power Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Adirak Kanchanaharuthai
Keyword(s):  
Power Systems ◽  
Small Perturbation ◽  
Feedback Linearization ◽  
Transient Stability ◽  
Dynamic Properties ◽  
Voltage Regulation ◽  
Nonlinear Controller ◽  
Electrical Power System ◽  
Immersion And Invariance ◽  
Large Perturbation

A nonlinear coordinated control of excitation and SVC of an electrical power system is proposed for transient stability, and voltage regulation enhancement after the occurrence of a large disturbance and a small perturbation. Using the concept of Immersion and Invariance (I&I) design methodology, the proposed nonlinear controller is used to not only achieve power angle stability, frequency and voltage regulation but also ensure that the closed-loop system is transiently and asymptotically stable. In order to show the effectiveness of the proposed controller design, the simulation results illustrate that, in spite of the case where a large perturbation occurs on the transmission line or there is a small perturbation to mechanical power inputs, the proposed controller can not only keep the system transiently stable but also simultaneously accomplish better dynamic properties of the system as compared to operation with the existing controllers designed through a coordinated passivation technique controller and a feedback linearization scheme, respectively.

scholarly journals Control of multi-machine using adaptive fuzzy

2011 ◽  
Vol 8 (2) ◽  
pp. 111-126
Author(s):  
Bousmaha Bouchiba ◽  
Abdeldjebar Hazzab ◽  
Hachemi Glaoui ◽  
Fellah Med-Karim ◽  
Ismaïl Bousserhane ◽  
...  
Keyword(s):  
Power Systems ◽  
Power System ◽  
Transmission Lines ◽  
Feedback Linearization ◽  
Transient Stability ◽  
Fuzzy Controller ◽  
Reference Model ◽  
Linearization Technique ◽  
Adaptive Fuzzy ◽  
Adaptation Law

An indirect Adaptive fuzzy excitation control (IAFLC) of power systems based on multi-input-multi-output linearization technique is developed in this paper. The power system considered in this paper consists of two generators and infinite bus connected through a network of transformers and transmission lines. The fuzzy controller is constructed from fuzzy feedback linearization controller whose parameters are adjusted indirectly from the estimates of plant parameters. The adaptation law adjusts the controller parameters on-line so that the plant output tracks the reference model output. Simulation results shown that the proposed controller IAFLC, compared with a controller based on tradition linearization technique can enhance the transient stability of the power system.

Transient stability enhancement and voltage regulation of power systems

1993 ◽  
Vol 8 (2) ◽  
pp. 620-627 ◽  
Author(s):  
Y. Wang ◽  
D.J. Hill ◽  
R.H. Middleton ◽  
L. Gao
Keyword(s):  
Power Systems ◽  
Transient Stability ◽  
Voltage Regulation ◽  
Stability Enhancement
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