The Steady-State Characteristic Analysis of 2MW PMSG based Direct-Drive Offshore Wind Turbine

Abstract

：In order to support various studies for assessment of onshore and offshore wind turbine system including foundations, the land-based version of 2MW PMSG direct drive wind turbine has been analyzed using HAWC2 that account for the coupled dynamics of the wind inflow, elasticity, and controls of the turbine. this work presents the steady-state response of the system and natural frequency of the first thirteen structure turbine modes as a function of wind speed. Rotor, generator speeds, pitch angle, power production, thrust force, deflections of tower and blade are compared for one case below and one case above the rated wind speed.Key Words：Land-and sea-based wind turbines(육해상 풍력발전기), Direct drive(직접 구동형), Rated rotor speed (정격로터 속도), Permanent Magnet Synchronous Generator(영구자석 동기발전기), Pitch angle(피치각도), Peak power coefficient(최고점 출력 파워계수)

Pitching Motion Analysis of Floating Spar-buoy Wind Turbine of 2MW Direct-drive PMSG

“…설계 HS2PID를 사용하였다. HS2PID는 풍력발전기의 PI 제어기에 대하여 parameter의 값을 조정하는 프로그램으로서Table 2에제시된 발전기 회전력 제어와 날개 피치 제어의 비례제어 게인(k P ), 적분 게인(k I ), Optimal Cp tracking factor 의 값을 조절할 수 있다5) .…”