To address severe transmission signal attenuation caused by inter-phase electromagnetic coupling in three-phase cross-bonded cables, which significantly limits the identification of insulation defects and fault types, this paper proposes a broadband impedance spectroscopy differential-frequency decoupling and defect di...
Traditional active partial-discharge (PD) detection techniques are difficult to deploy for effective monitoring of PD signals in submarine cable flexible joints located far offshore. In addition, owing to the high-frequency damping effect of polymer insulating media, acoustic waves undergo severe attenuation during pro...
Qi-Chao Chen, Yan-Jun Li, Zhong-Yuan Li et al.· IEEE Sensors Journal· 0 citations
The increasing penetration of renewable generation and power-electronic-interfaced devices changes the sources of inertia, frequency-control resources, and structural sensitivity of power-system frequency responses. This paper develops a traceable automation workflow for overshoot-oriented frequency security assessment...
Lu Li, Zhong-Yuan Li, Xue-Ting Wang et al.· Energies· 0 citations
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