Impact of Non-Minimum-Phase Zeros on the Weak-Grid-Tied VSC
نویسندگان
چکیده
Right-half-plain (RHP) zeros can significantly deteriorate a control system's dynamic performances as it exhibits non-minimum-phase behaviors. In this paper, we investigate the occurrence mechanism of RHP in weak-grid-tied VSCs well provide guidance for minimizing their effects. A reduced-order multi-input multi-output (MIMO) transfer function VSC is firstly obtained. Then, single-input single-output (SISO) to study impact on power response further derived. The existence examined by applying Routh criterion numerator SISO open-loop function. We find that exist either when works an inverter or rectifier. Furthermore, large grid impedance values operation points with high active result system. It also shown limit minimum PLL bandwidth. Simulation results and RTDS experiments validate correctness analysis conclusions
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ژورنال
عنوان ژورنال: IEEE Transactions on Sustainable Energy
سال: 2021
ISSN: ['1949-3029', '1949-3037']
DOI: https://doi.org/10.1109/tste.2020.3034791