Improved Load Frequency Control Using a Fast Acting Active Disturbance Rejection Controller

Abstract

System frequency may change from defined values while transmitting power from one area to another in an interconnected power system due to various reasons such as load changes and faults. This frequency change causes a frequency error in the system. However, the system frequency should always be maintained close to the nominal value even in the presence of model uncertainties and physical constraints. This paper proposes an Active Disturbance Rejection Controller (ADRC)-based load frequency control (LFC) of an interconnected power system. The controller incorporates effects of generator inertia and generator electrical proximity to the point of disturbances. The proposed controller reduces the magnitude error of the area control error (ACE) of an interconnected power system compared to the standard controller. The simulation results verify the effectiveness of proposed ADRC in the application of LFC of an interconnected power system.

Load frequency control of a dynamic interconnected power system using generalised Hopfield neural network based self‐adaptive PID controller

“…Fig. 1 shows a block diagram for the i th pool of an N‐pool power system with GDB, GRC, and controller [23].…”

Load Frequency Regulator in Interconnected Power System Using Second-Order Sliding Mode Control Combined with State Estimator

“…In addition, the optimal control scheme with Proportional integral derivative (PID), particularly the particle swarm optimization (PSO) algorithm, was implemented for tuning PID-based LFC [18]. However, the above-proposed controllers consider the mismatched uncertainty of the power systems [19].…”

Comparative Study of Meta-Heuristic and Classical Techniques for Automatic Generation Control of a Multi-Source Single-Area Hydro-Thermal-Gas Power System

“…It has widely been reported that load disturbances in power systems result in corresponding system frequency changes (Fitri et al, 2017;Rahman et al, 2017). One of the main objectives of automatic generation control (AGC) is to sustain the system frequency as close to nominal as possible or within the specified range.…”