Renewable energy provides 20% of electricity generation worldwide. Hydroelectric power is the cheapest way to generate electricity today. It provides almost onefifth of the electricity in world. Hydropower is produced in more than 150 countries. The main objective of this paper is modelling and analysis of the effects of the power system stabilizer (PSS) for load frequency control (LFC) system ...

Modern day power systems are divided into various areas. The transmission lines that connect an area to its neighboring area are called tie-lines sharing power between two areas. Automatic Generation Control (AGC) as the name signifies it regulates the power flow between different areas while holding the frequency constant. Frequency control as a major function of automatic generation control i...

Load Frequency control (LFC) in power system is undergoing a lot of changes due to the rapidly growing demand and due to various renewable generation integration to the existing system. This work proposes an LFC scheme based on Fuzzy Logic Control for a hybrid wind-diesel power system. Therefore the objective of this LFC is to minimize system frequency deviations and tie line power changes. The...

In an interconnected power system, as a power load demand varies randomly, both area frequency and tie-line power interchange also vary. The objectives of load frequency control (LFC) are to minimize the transient deviations in theses variables (area frequency and tie-line power interchange) and to ensure their steady state errors to be zeros. When dealing with the LFC problem of power systems,...

The performance of power systems gets worsening due to the presence of sudden load changes, uncertainties of parameters etc. Therefore the design of load frequency control is very important in the modern power systems. This paper presents LFC control technique to reject the typical disturbance as well as control the large-scale system problems. Parameter uncertainty and load disturbance approac...

In this paper we have proposed a control technique for the automatic generation control of multi generating power unit of the interconnected power system. This technique established the relationship between the economic load dispatch and load forecasting mechanism to the classical concepts of the load frequency control (LFC). The LFC system monitors to keep the power system frequency at nominal...

-In this paper, a simple and robust proportional-integral (PI) controller has been proposed for load frequency control (LFC) in multi-area power systems. The proposed control design, called PSOLMI, benefits from the robust performance of the H∞ control, expressed in terms of linear matrix inequalities (LMIs), and the optimization capabilities of the particle swarm optimization algorithms, simul...

This paper presents the robust design of a Power System Stabilizer (PSS) to improve the stability in the composed two-area Load Frequency Control (LFC) and Automatic Voltage Regulator (AVR) using Artificial Bee Colony (ABC) in a restructured environment. The coupling effects of the LFC and AVR loops are studied by extending the linearized Automatic Generation Control (AGC) system to include the...

The integration of large-scale renewable energy poses great challenges for the operation of power system because of its increased frequency fluctuations. More load frequency control (LFC) resources are demanded in order to maintain a stable system with more renewable energy injected. Unlike the costly LFC resources on generation side, the thermostatically controlled loads (TCLs) on the demand s...