Optimal decentralized control of a wind turbine and diesel generator system

Milad Shojaee, S. Mohsen Azizi

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This article presents a decentralized optimal controller design technique for the frequency and power control of a coupled wind turbine and diesel generator. The decentralized controller consists of two proportional-integral (PI)-lead controllers which are designed and optimized simultaneously using a quasi-Newton based optimization technique, namely, Davidon–Fletcher–Powell algorithm. The optimal PI-lead controllers are designed in such a way that there are no communication links between them. Simulation results show the superior performance of the proposed controller with a lower order structure compared to the benchmark decentralized linear-quadratic Gaussian integral controllers of orders 4 and 11. It is also shown that the proposed controller demonstrates an effective performance in damping the disturbances from load and wind power, as well as a robust performance against the parameter changes of the power system.

Original languageEnglish (US)
Pages (from-to)677-698
Number of pages22
JournalOptimal Control Applications and Methods
Issue number2
StatePublished - Mar 1 2023

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Software
  • Control and Optimization
  • Applied Mathematics


  • Davidon–Fletcher–Powell
  • decentralized optimal controller
  • frequency and power control
  • robustness


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