into the effective operation of variable gain amplifiers (VGA) in automatic gain control (AGC) applications. Figure 1 is a general block diagram for an AGC loop. The input signal passes through the VGA to produce the output level to be stabilized. The detector’s output is compared against a setpoint voltage to produce an error signal, which is then integrated to produce a gain control voltage. ...

Two problems: Parameter uncertainty and chattering effect present in Control signal are have a great deal in performance of system with the designed controllers. This paper presents Fuzzy Sliding Mode Controller (FSMC) for Multi Area Load Frequency Control problem or Automatic Generation Control (AGC) in a De-regulated environment. The first problem is addressed by designing a sliding mode cont...

As a benchmark exercise for testing software and methods developed in Hycon2 for decentralized and distributed control, we address the problem of designing the Automatic Generation Control (AGC) layer in power network systems. In particular, we present three different scenarios and discuss performance levels that can be reached using Centralized Model Predictive Control (MPC). These results can...

This paper presents a nonlinear Artificial Neural Networks (ANN) controller based on μ–synthesis for Automatic Generation Control (AGC) of power systems. Power systems such as other industrial plants have some uncertainties and deviations due to multivariable operating conditions and load changes. For this reason, in the design of ANN controller the idea of μ synthesis theory is used. The motiv...

Cyber systems play a critical role in improving the efficiency and reliability of power system operation and ensuring the system remains within safe operating margins. An adversary can inflict severe damage to the underlying physical system by compromising the control and monitoring applications facilitated by the cyber layer. There is a growing need for cyber-attack-resilient control technique...

In this paper, a novel improved gravitational search algorithm–binary particle swarm optimization (IGSA-BPSO) driven proportional-integral-derivative (PID) controller is proposed to deal with issues of automatic generation control (AGC) interconnected multi-source (thermal-hydro-gas) multi-area deregulated power systems. The effectiveness and robustness the compared analyzed GSA PSO-driven PID ...

In this work two issues concerning the use of the Automatic-Gain-Control (AGC) gain level for detecting and estimating the Jammer-to-Noise (J/N) ratio of Radio-Frequency Interference (RFI) are investigated. In the presence of RFI the AGC will reduce the gain level to keep the rms noise level at the input to the Analogue-to-Digital Converter (ADC) at a set level. As this level has to be estimate...

This paper presents an analysis on dynamic performance of a three-area thermal system interconnected with HVDC links when subjected to parametric uncertainties. In this paper all the three areas consists of thermal power plants. The HVDC link is used as a system interconnection between all the three areas. Open transmission access and the evolution of more socialised companies for generation, t...

In this paper, integral plus double derivative (IDD) in coordination with Thyristor Controlled Phase Shifter (TCPS) is applied for the first time in automatic generation control (AGC) system. Comparative studies on the performance of different classical controllers viz. integral (I), proportional plus integral (PI), proportional plus integral plus derivative (PID) and integral plus double deriv...