A Sub-Synchronous Oscillation Suppression Strategy Based on Active Disturbance Rejection Control for Renewable Energy Integration System via MMC-HVDC
نویسندگان
چکیده
To realize the consumption of renewable energy such as wind power and photovoltaics in system, integration system via modular multilevel converter (MMC)-based high voltage direct current (MMC-HVDC) has been widely applied. However, with large-scale grid connection units, sub-synchronous oscillation (SSO) is prone to occur. Aiming at problem, this paper proposes an SSO suppression strategy for MMC-HVDC based on active disturbance rejection control (ADRC) theory. Using drive permanent magnet synchronous generators (PMSG)-based farm example, firstly topology principles are described, a simulation model built PSCAD/EMTDC. Moreover, mechanism revealed by Nyquist stability criterion, major factors affecting simulated analyzed. Subsequently, additional damping controller (ASSDC) proposed ADRC Compared traditional controllers, considers disturbances during designing process stronger robustness. In addition, when faults happen, speed ASSDC reaching steady-state operating point rises 33.7% compared without ASSDC. Finally, effectiveness verified through analysis.
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ژورنال
عنوان ژورنال: Electronics
سال: 2023
ISSN: ['2079-9292']
DOI: https://doi.org/10.3390/electronics12132885