Power Fluctuations Smoothing Control Based on PCH Model of D-PMSG Wind Power System

To effectively mitigate power fluctuations in a wind power system, the self-capability of the Direct-drive Permanent Magnet Synchronous Generator (D-PMSG) is harnessed for power smoothing support through the Port-Controlled Hamiltonian (PCH) model. By combining rotor speed control and PCH passive control, the PMSG can quickly track the reference speed and DC-link voltage control can support power smoothly within the rated operating range of the wind turbine. To validate the effectiveness of the proposed method, a simulation was conducted by comparing it with traditional maximum power point tracking control.