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 language | Korean |
---|---|
Pages (from-to) | 28-33 |
Number of pages | 6 |
Journal | Journal of Institute of Control, Robotics and Systems |
Volume | 21 |
Issue number | 1 |
DOIs | |
State | Published - 2015 |
Keywords
- Optimal control
- Permanent magnet synchronous generator
- SDRE (State Dependent Riccati Equation)
- Wind turbine