SDRE based near optimal controller design of permanent magnet synchronous generator for variable-speed wind turbine system

Hyung Moo Park, Han Ho Choi

Research output: Contribution to journalArticlepeer-review

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Abstract

In this paper, we propose a near optimal controller design method for permanent magnet synchronous generators (PMSGs) of MW-class direct-driven wind turbine systems based on SDRE (State Dependent Riccati Equation) approach. Using the solution matrix of an SDRE, we parameterize the optimal controller gain. We present a simple algorithm to compute the near optimal controller gain. The proposed optimal controller can enable PMSGs to precisely track the reference speed determined by the MPPT algorithm. Finally, numerical simulation results are given to verify the effectiveness of the proposed optimal controller.

Original languageKorean
Pages (from-to)28-33
Number of pages6
JournalJournal of Institute of Control, Robotics and Systems
Volume21
Issue number1
DOIs
StatePublished - 2015

Keywords

  • Optimal control
  • Permanent magnet synchronous generator
  • SDRE (State Dependent Riccati Equation)
  • Wind turbine

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