scholarly journals Frequency regulation of modern power system using novel hybrid DE-DA algorithm

2019 ◽  
Vol 8 (2) ◽  
pp. 103
Author(s):  
Sayantan Sinha ◽  
Ranjan Kumar Mallick
Keyword(s):  
Power System ◽  
Differential Evolution ◽  
Automatic Generation ◽  
Frequency Regulation ◽  
Hybrid Technique ◽  
Thermal Generation ◽  
Dragonfly Algorithm ◽  
Interconnected Power System ◽  
Load Disturbance ◽  
Tie Line

<p>An attempt has been made to regulate the frequency of an interconnected  modern power system using automatic generation control under a restructured market scenario. The system model considered consists of a thermal generation plant coupled with a gas turbine plant in both areas. The presence of deregulated market scenario in an interconnected power system makes it too vulnerable to small load disturbance giving rise to frequency and tie line power imbalances. An attempt has been made to introduce a novel Tilted Integral derivative controller to minimize the frequency and tie line power deviations and restrict them to scheduled values. A maiden attempt has been made to tune the controller gains with the help of a novel hybrid optimization scheme which includes the amalgamation of the exploitative nature of the Differential evolution technique and the explorative attributes of the Dragonfly Algorithm. This hybrid technique is therefore coined as Differential evolution- dragonfly algorithm (DE-DA) technique. Use of some standard benchmark fucntions are made to prove the efficacy of the proposed scheme in tunig the controller gains. The supremacy of the proposed TID controller is examined under two individual market scenarios and under the effect of a step load disturbance. The robustness of the controller in minimizing frequency deviations in the systems is broadly showcased. The superiority of the controller is also proved by comparing it with pre published results.</p>

scholarly journals Improved Automatic Generation Control of Interconnected Power System

2019 ◽  
Vol 8 (2S8) ◽  
pp. 1136-1139
Keyword(s):  
Power System ◽  
Automatic Generation ◽  
Automatic Generation Control ◽  
Dynamic Reaction ◽  
Matlab Simulink ◽  
Interconnected Power System ◽  
Generation Control ◽  
Tie Line ◽  
The Way

In present day manage frameworks situation, the most intense significance is given to interconnection of different frameworks on the way to meet the dynamical modifications in burdens additionally energy movements via specific elements. it's miles essential to manipulate the framework recurrence and tie-line streams of an interconnected electricity framework. Albeit, normal controllers are applied to meet the ones conditions, yet on the same time a a success controller is required for powerful manage. in this paper, an progressed programmed age manipulate (AGC) with fluffy cause for a -zone heat hydro manage framework is exhibited. Contingent on the factors of burden, required suggestions are completed to improve enduring us of a and dynamic reaction of two-place manage framework. The adequacy of proposed controller is stated via making use of MATLAB/Simulink programming.

scholarly journals Integration of Economic Load Dispatch with AGC of Multi-Area Power System: Analysis on Optimal Control and Stabilization

2019 ◽  
Vol 8 (4) ◽  
pp. 4241-4248
Keyword(s):  
Power System ◽  
Pid Controller ◽  
System Analysis ◽  
Automatic Generation ◽  
Dynamic Responses ◽  
Economic Load Dispatch ◽  
Fuel Cost ◽  
Interconnected Power System ◽  
De Algorithm ◽  
Tie Line

This paper proposes a novel Moth Flame Optimization (MFO) based filter type Proportional Integral and Derivative (PID) controller in multi-area interconnected power system for achieving simultaneously Automatic Generation Control (AGC) and Economic Load Dispatch (ELD). Conventional AGC is economically inefficient in regards to each area has to fulfill its own load variation in responses to keep tie-line power (∆Ptie) its scheduled value. To achieve this ACE based AGC is modified by integrating with ELD and combined known as Economic AGC or Eco-AGC. In Eco-AGC concern though change in area frequency(∆f) is brought to zero but tie-line power deviation (∆Ptie) never comes to zero as power always transmitted from generating station having lower incremental fuel cost to generating station having higher incremental fuel cost. In this regard an optimized filter based PID controller is used for stabilizing different dynamic responses of the Eco-AGC system. The proposed controller gains are tuned by using Moth Flame Optimization (MFO) techniques and for supremacy it is compared with standard PSO and Differential Evolution (DE) algorithm. The supremacy of MFO based PID structure over PSO and DE based PID and without ED controller has been demonstrated through dynamic responses. Finally it is revealed in Eco-AGC concern, the committed units are economically scheduled and there is a significant improvement in all dynamic responses of the system.

Automatic Generation Control of Interconnected Power System using Cuckoo Optimization Algorithm

2015 ◽  
Vol 4 (2) ◽  
pp. 22-35
Author(s):  
Shanchari Laik ◽  
Shatabdi Dey ◽  
Puja Das ◽  
Sneha Sultana ◽  
Sourav Paul ◽  
...  
Keyword(s):  
Power System ◽  
Optimization Algorithm ◽  
Dynamic Performance ◽  
Automatic Generation ◽  
Automatic Generation Control ◽  
Interconnected System ◽  
Cuckoo Optimization Algorithm ◽  
Interconnected Power System ◽  
Generation Control ◽  
Tie Line

Automatic generation control (AGC) is added in power system to ensure constancy in frequency and tie-line power of an interconnected multi-area power system. In this article, proportional integral (PI) controlled based AGC of two-area hydrothermal system is solved by cuckoo optimization algorithm (COA). It is one of the most powerful stochastic real parameter optimization in current use. The design objective is to improve the dynamic performance of the interconnected system following a disturbance. System performance is examined considering 1% step load perturbation in thermal area with generation rate constraints. The results are compared with BBO, GA and DE to show the effectiveness of the proposed method. Computed results shows that the proposed method effectively improve the performance of the objective function with corresponding minimization of the overshoot, undershoot and settling time to reach steady state.

scholarly journals Optimal Regulator for AGC of Multi-Area Interconnected Power System with AC/DC Link

2011 ◽  
pp. 22-26
Author(s):  
Ibraheem Ibraheem ◽  
Omveer Singh
Keyword(s):  
Power System ◽  
Linear Quadratic Regulator ◽  
Automatic Generation ◽  
Operating Conditions ◽  
Linear Quadratic ◽  
Interconnected Power System ◽  
Load Fluctuation ◽  
Optimal Linear ◽  
Optimal Regulator ◽  
Tie Line

In this paper Automatic Generation Control of multiarea interconnected power system consisting of reheat type turbines has been studied. As a consequence of continually load fluctuation the frequency deviate over time and these transients are to be minimized to zero in terms of Area Control Error using optimal linear quadratic regulator. An optimal regulator has been designed to ascertain zero steady state frequency deviation deviation under all operating conditions. The performance of the proposed optimal regulator with conventional integral regulator has been compared. The simulation results reveals that better control performance in terms of overshoot and settling time can be obtained by optimal regulator. System is also studied with AC Tie-line only and DC Link parallel with AC Tie-line.

AGC System after Deregulation Considering TCPS in Series with the Tie-Line

2015 ◽  
Vol 16 (3) ◽  
pp. 281-295 ◽  
Author(s):  
Rajesh Joseph Abraham ◽  
D. Das ◽  
A. Patra
Keyword(s):  
Power System ◽  
Phase Shifter ◽  
Automatic Generation ◽  
Ancillary Service ◽  
System Effect ◽  
Interconnected Power System ◽  
Power Oscillations ◽  
In Series ◽  
System Frequency ◽  
Tie Line

Abstract This paper presents the study of automatic generation control (AGC) of two area interconnected power system after deregulation, considering a thyristor controlled phase shifter (TCPS) in series with the tie-line. It is possible to minimize the system frequency and tie-power oscillations by controlling the phase angle of TCPS which is expected to provide a new ancillary service for the future power system. Effect of TCPS is examined for three different cases, i.e. (1) unilateral contract, (2) bilateral contract and (3) contract violation. Analysis reveals that a TCPS is quite capable of suppressing the frequency and tie-power oscillations effectively as compared to that obtained without TCPS.

Analysis of Performance of Several Types of Classical Controller in Automatic Generation Control for an Interconnected Power System

2011 ◽  
Vol 354-355 ◽  
pp. 964-967
Author(s):  
Guo Wei Dong ◽  
Ping Yang
Keyword(s):  
Power System ◽  
Automatic Generation ◽  
Automatic Generation Control ◽  
Control Performance ◽  
Proportional Integral Derivative ◽  
Interconnected Power System ◽  
Proportional Integral ◽  
Analysis Of Performance ◽  
Generation Control ◽  
Tie Line

This paper presents automatic generation control (AGC) of interconnected two equal area power system provided with single reheat turbine and generation rate constraints of 3% per minute. This paper also contrasts to control performance of several types of classical controller, include of Integral (I), Proportional – Integral (PI), Integral – Derivative (ID), Proportional – Integral – Derivative (PID), or Integral – Double Derivative (IDD). With 1% step load perturbation in area1, controllers’ performance analysis can be taken by frequency deviation, tie-line power deviation, and input signal of governor.

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