Abstract
Direct-drive wind turbine is an important type of wind power technology. In recent years, it has also become the development trend of large-capacity wind turbines. It is difficult and expensive to establish physical simulation for wind in reality, which makes the real-time simulation model necessary in the study its power generation control strategy and operation characteristics. Here, the structure and basic principles of the direct-drive wind power system was studied, mathematical model of the dq generator and converter using coordinate transformation was built, and control methods including the wind turbine pitch angle control, maximum power tracking control, and generator-side variable flow control were simulated. Furthermore, a control strategy of generator-side converters and grid-side converters was proposed and studied based on the model in the real-time simulation system RTDS. Different working conditions as grid-connected normal operation and operation with grid fault were simulated within the strategy. Waveforms of current, voltage, power, torque were obtained and analysed. The simulation results showed that the simulation model reflected the operating characteristics of the direct-drive wind power generation system well, the control strategy performed successfully, and the features of the system in normal and faulted operation were preliminarily revealed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
