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Yiyang Yao - IEEE Xplore Author Profile

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Smart transformer (ST) is usually used to solve system level problems. However, ST low-voltage sider converter will couple with the grid-connected converters and stability and harmonic oscillations problems occur. To solve this problem, this paper studies the filter impact on the stability and an asymmetric resonant filter is proposed. Based on the proposed filter, the stabilizing control strategy...Show More
Phase-locked loop (PLL) introduces the negative resistance that leads to sideband oscillation, which compromises system stability in weak grids. This paper aims to reveal the mechanism of system instability caused by the PLL from the point view of equivalent impedance. To enhance the system stability, a designed-oriented analysis is carried out and a active damping control strategy based on digita...Show More
Internet of Things has found a lot of applications in power systems. However, with the increased the sensing, networking, and control capabilities, the security issues have become even more urgent at the same time. In this paper, a TMAC model based on trusted mandatory access control is proposed by studying the security situation of a power monitoring system. The model has self-learning characteri...Show More