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arXiv · 2111.12013

Stability and Sensitivity Analysis of Multi-Vendor, Multi-Terminal HVDC Systems

Yicheng Liao·Heng Wu·Xiongfei Wang·Mario Ndreko·Robert Dimitrovski·Wilhelm Winter
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Abstract

The stability of multi-vendor, multi-terminal HVDC systems can be analyzed in frequency domain by black-box impedance models using the generalized Nyquist stability criterion. Based on the impedance stability analysis, a multi-level sensitivity analysis approach using frequency-domain sensitivity functions is proposed to identify the root cause of potential instability. Case studies on a four-terminal HVDC system are carried out for stability and sensitivity analysis based on the impedance measurement in PSCAD. The analysis results are finally validated by electromagnetic transient simulations.

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Yicheng Liao, Heng Wu, Xiongfei Wang, Mario Ndreko, Robert Dimitrovski, Wilhelm Winter. 2021-11-23. Stability and Sensitivity Analysis of Multi-Vendor, Multi-Terminal HVDC Systems. https://arxiv.org/abs/2111.12013

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