scholarly journals Output voltage regulation of synchronous generator using PSO algorithm-based PI controller

2021 ◽  
Vol 12 (2) ◽  
pp. 1216
Author(s):  
Fatiha Habbi ◽  
Nour El Houda Gabour ◽  
El Ghalia Boudissa ◽  
M’hamed Bounekhla
Keyword(s):  
Output Voltage ◽  
Optimization Technique ◽  
Synchronous Generator ◽  
Pso Algorithm ◽  
Voltage Regulation ◽  
Pi Controller ◽  
Reference Voltage ◽  
Adopted Model ◽  
Fixed Reference ◽  
Terminal Voltage

In this paper a regulation of the terminal voltage of synchronous generator (SG) has been developed. Here, the nonlinear model of the SG is used directly without requirement for a linearized mathematical model of the generator. A proportional integral PI-controller is used to adjust the duty cycle of the DC chopper of step-down type for controlling the field voltage and consequently the output voltage of the generator. Furthermore, Particle swarm optimization (PSO) algorithm is employed as an optimization technique for tuning the optimal parameters of the PI controller (Kp and Ki). This is achieved by the minimization of the quadratic output error between the reference voltage and the output voltage calculated from the adopted model at the same time. In order to test the performance of the PSO-PI controller, results are compared with the genetic algorithm (GA). Moreover, to reduce the overshoot resulting in the response of the terminal voltage, a varied reference voltage is adopted. Results obtained show the superiority of the varied reference voltage to decrease the overshoot versus the fixed reference voltage.

Dual control of synchronous generator for terminal voltage regulation-comparison with a single control

2012 ◽  
Vol 91 ◽  
pp. 78-86 ◽  
Author(s):  
Fayçal Bensmaine ◽  
Abdallah Barakat ◽  
Slim Tnani ◽  
Gérard Champenois ◽  
Emile Mouni
Keyword(s):  
Synchronous Generator ◽  
Voltage Regulation ◽  
Dual Control ◽  
Terminal Voltage

scholarly journals Optimal Tuning of SVC-PI Controller using Whale Optimization Algorithm for Angle Stability Improvement

2018 ◽  
Vol 12 (2) ◽  
pp. 620
Author(s):  
N. A. M. Kamari ◽  
I. Musirin ◽  
Z. A. Hamid ◽  
A. A. Ibrahim
Keyword(s):  
Optimization Algorithm ◽  
Damping Ratio ◽  
Optimization Technique ◽  
Computation Time ◽  
Synchronous Generator ◽  
Pi Controller ◽  
Optimization Techniques ◽  
Whale Optimization Algorithm ◽  
Whale Optimization ◽  
Angle Stability

This paper proposed a new swarm-based optimization technique for tuning conventional proportional-integral (PI) controller parameters of a static var compensator (SVC) which controls a synchronous generator in a single machine infinite bus (SMIB) system. As one of the Flexible Alternating Current Transmission Systems (FACTS) devices, SVC is designed and implemented to improve the damping of a synchronous generator. In this study, two parameters of PI controller namely proportional gain, K<sub>P</sub> and integral gain, K<sub>I</sub> are tuned with a new optimization method called Whale Optimization Algorithm (WOA). This technique mimics the social behavior of humpback whales which is characterized by their bubble-net hunting strategy in order to enhance the quality of the solution. Validation with respect to damping ratio and eigenvalues determination confirmed that the proposed technique is more efficient than Evolutionary Programming (EP) and Artificial Immune System (AIS) in improving the angle stability of the system. Comparison between WOA, EP and AIS optimization techniques showed that the proposed computation approach gives better solution and faster computation time.

Passivity–Based PI Controller of a Buck Converter for Output Voltage Regulation

2020 ◽  
Author(s):  
F.M. Serra ◽  
G.L. Magaldi ◽  
Walter Gil-Gonzalez ◽  
Oscar Montoya
Keyword(s):  
Output Voltage ◽  
Voltage Regulation ◽  
Pi Controller ◽  
Buck Converter

scholarly journals Design and implementation of a stability control system for TCP/AQM network

2021 ◽  
Vol 22 (1) ◽  
pp. 129
Author(s):  
Salam Waley Shneen ◽  
Mohammed Qasim Sulttan ◽  
Manal Kadhim Oudah
Keyword(s):  
Optimization Technique ◽  
Control Unit ◽  
Pso Algorithm ◽  
Congestion Management ◽  
Ip Networks ◽  
Stability Control ◽  
Pi Controller ◽  
New Approach ◽  
Mathematical System ◽  
Stability Control System

<p><span>In this work, we used a new approach as active queue management (AQM) to avoid data congestion in TCP/IP networks. The new approach is PSO-PI controller which use the proportional-integral controller as a control unit and particle swarm optimization (PSO) algorithm as an optimization technique to improve the performance of the PI controller and therefore improving the performance of TCP/IP networks as a required goal. The optimization control (PSO-PI) is characterized by access to design and choosing the optimal parameters of </span>(K_1 and K_p) <span>to reach optimal solutions in a short way (fewer iterations). The implementation of the PSO algorithm is achieving by using the mathematical system model and M-file and SIMULINK in Mathlab program. Simulation results show good congestion management performance with PSO-PI controller better than the PI controller as AQM in TCP networks, and the proposed method was very fast and required few iterations.</span></p>

Technique to Improve the Transient Response of Parallel-Connected AC/DC Converters

2014 ◽  
Vol 931-932 ◽  
pp. 883-887
Author(s):  
Yutthana Kanthaphayao ◽  
Viboon Chunkag
Keyword(s):  
Transient Response ◽  
Output Voltage ◽  
Harmonic Distortion ◽  
Voltage Regulation ◽  
Pi Controller ◽  
Input Current ◽  
Loop Control ◽  
Current Sharing ◽  
Overshoot And Undershoot ◽  
Fast Settling

In this paper, a technique to improve the transient response of a parallel-connected AC/DC converter has been studied. The proposed technique is used to improve the transient response while disturbance is injected into the system. Generally, a conventional voltage loop control uses a PI controller, because of which a slow transient response is observed. In this paper, the voltage loop control is composed of a signal from the PI controller added with a peak input current and gain scheduling of change in peak input current. The performance evaluation was experimented on a three-module isolated CUK AC/DC converter, with a 500W load and-48V DC output voltage. The system achieves the following: tight output voltage regulation, good current sharing, and low harmonic distortion. Moreover, the disturbance occurs in the system by an immediate load change, and the output voltages are at minimum overshoot and undershoot with a fast settling time.

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