HVDC Line Model for Load Frequency Control Using Harmony Search Algorithm Application

Document Type : Original Research Paper


Najafabad Branch, Islamic Azad University


Load frequency control (LFC) is used as part of automatic generation control (AGC) in power systems. LFC with the automatic voltage regulator (AVR) plays an important role in maintaining the frequency and constant voltage. In this paper, a method for load frequency control in recon-structed electrical systems using high voltage direct current (HVDC) line is presented. An accu-rate and complete model based on the control circuit and equations with HVDC controller design is considered and its parameters are optimized using the harmony search algorithm (HAS). To test the method, the power system is simulated with three-area. The simulation results show the proper performance of the power system against sudden load changes and disturbances caused by other areas.


Main Subjects

Articles in Press, Accepted Manuscript
Available Online from 01 December 2020
  • Receive Date: 16 November 2020
  • Revise Date: 25 November 2020
  • Accept Date: 01 December 2020