Load frequency control of a multi-area power system: An adaptive fuzzy logic approach

Hassan A. Yousef, Khalfan Al-Kharusi, Mohammed H. Albadi, Nasser Hosseinzadeh

Research output: Contribution to journalArticlepeer-review

250 Citations (Scopus)


In this paper, a new load frequency control (LFC) for multi-area power systems is developed based on the direct-indirect adaptive fuzzy control technique. LFCs for each area are designed based on availability of frequency deviation of each area and tie-line power deviation between areas. The fuzzy logic system approximation capabilities are exploited to develop suitable adaptive control law and parameter update algorithms for unknown interconnected LFC areas. An H tracking performance criterion is introduced to minimize the approximation errors and the external disturbance effects. The proposed controller guarantees stability of the overall closed-loop system. Simulation results for a real three-area power system prove the effectiveness of the proposed LFC and show its superiority over a classical PID controller and a type-2 fuzzy controller.

Original languageEnglish
Article number6717058
Pages (from-to)1822-1830
Number of pages9
JournalIEEE Transactions on Power Systems
Issue number4
Publication statusPublished - Jul 2014


  • Adaptive control
  • GDB
  • GRC
  • adaptive fuzzy control
  • fuzzy approximation
  • load frequency control (LFC)
  • multi-area

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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