A New Energy Field Station High-Frequency Resonance Suppression Strategy Based on STATCOM Improved Voltage Feed-Forward Impedance Reshaping

With the access of large-scale power electronic equipment, the complex high-frequency resonance problems faced by new energy power systems cannot be ignored. In this paper, the high-frequency resonance problem of new energy field station with static synchronous reactive power compensation device is investigated. Firstly, a harmonic linearization method is adopted to model the impedance of the new energy field station and static synchronous compensator (STATCOM), and then impedance analysis method is used to determine the conditions and mechanism for the occurrence of high-frequency resonance in the new energy field station. Then, in order to suppress the high-frequency resonance of the system, this paper proposes a high-frequency resonance suppression strategy based on the improved voltage feed-forward impedance reshaping of STATCOM in the new energy field station, and builds a simulation model of the new energy field station to verify it, and the simulation results show the effectiveness of the high-frequency resonance suppression strategy.