Improved Dynamic Performance in Interconnected Power System Using Secondary Frequency Control

International Journal of Smart Electrical Engineering

دوره 12، شماره 02، مهر 2023، صفحه 127-133   

نوع مقاله: Research Paper

شناسه دیجیتال (DOI): 10.30495/ijsee.2023.1973728.1239

نویسندگان

Bahador Fani^{* 1}؛ Farhad Mesrinejad²؛ Somaye Yaghoubi³؛ HassanHaes Alhelou⁴

¹Najafabad Branch, Islamic Azad University

²Department of Electrical Engineering, Tiran Branch, Islamic Azad University, Tiran, Isfahan, Iran

³Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran

⁴Department of Electrical and Computer Systems Engineering, Monash University, Melbourne, VIC, Australia,

چکیده

Load changes affect the frequency of electrical networks. Frequency stabilization is very important due to the increasing penetration of renewable energy sources in power systems. Load frequency control (LFC) is used in the power system, so that the frequency of the programmed system and the power of the connection line of an interconnected area are within the specified limits. To improve the dynamic performance of the power system and control the frequency stability, LFC is used in power systems. The main task of LFC is to keep the system frequency according to the specified nominal value and to maintain the correct amount of exchange power between the control areas. In this paper, load frequency control in two-area power system is studied and simulated. Each area has a steam generating unit with a reheat steam turbine. The system equations are expressed in the state space and the system model is determined based on the transfer function. The simulation results have been obtained using Matlab software. The simulation results show the effect of Richter's parameters on the transient dynamic behavior of the system.

کلیدواژه‌ها

load frequency control؛ two-area power system؛ state space؛ reheater