Port-Controlled Hamiltonian (PCH)-based control approach for wind energy conversion systems

This paper presents a novel control approach to improve the dynamic response of wind energy control systems (WECS) that use a permanent magnet synchronous generator (PMSG) operating under a wide input and load range. In this paper, it´s shown that WECS is classified as a Port-Controlled Hamiltonian (PCH) system. Therefore, a nonlinear controller based on PCH is proposed, which is able to robustly control the WECS under parameter uncertainties and disturbances. The performance of the PCH-based controller is evaluated through simulation. Also, the proposed controller is implemented on an experimental prototype. Simulation and experimental results show a robust and fast transient performance compared to the conventional dq-controller.