首页> 外文会议>International Conference on Renewable Power Generation >RISK ASSESSMENT OF CASCADING FAILURE IN POWER GRID BASED ON BRITTLENESS THEORY OF COMPLEX SYSTEM AND ENTROPY THEORY UNDER GEOMAGNETIC STORM CONDITIONS
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RISK ASSESSMENT OF CASCADING FAILURE IN POWER GRID BASED ON BRITTLENESS THEORY OF COMPLEX SYSTEM AND ENTROPY THEORY UNDER GEOMAGNETIC STORM CONDITIONS

机译:基于复杂系统的脆性理论基于复杂系统脆性理论的电网级联故障风险评估

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Geomagnetic disturbances will induce GIC (Geomagnetically Induced Currents) in high voltage power grid. GIC can cause cascading failure in the power system, resulting in power system collapse or blackouts. Research on risk assessment of cascading failures in power grid under geomagnetic storms can provide important reference for preventing accidents caused by geomagnetic storms. In this paper, the mechanism of cascading failure in power grid under geomagnetic storms is analysed. Using the brittleness theory of complex system to analyze the propagating process of cascading failure in power grid under geomagnetic storms. A comprehensive assessment index based on entropy theory and power system load shedding is proposed to evaluate the cascading failure in power grid under geomagnetic storm conditions. Finally, the assessment process and the assessment index are validated by using the IEEE-RTS79 system. The verification results show the validity and practicability of the proposed assessment process and index. The results of risk assessment can provide reference for quantifying and preventing the risk of power grid under geomagnetic storms.
机译:地磁扰动将在高压电网中诱导GIC(地理诱导的电流)。 GIC可能导致电源系统中的级联失败,导致电力系统塌陷或停电。地磁风暴下电网级联故障风险评估的研究可以为防止地磁风暴引起的事故提供重要参考。本文分析了在地磁风暴下电网级联失效的机理。利用复杂系统的脆性理论分析地磁风暴下电网级联失效的传播过程。提出了一种基于熵理论和电力系统负荷脱落的综合评估指标,以评估地磁风暴条件下电网的级联失效。最后,通过使用IEEE-RTS79系统验证评估过程和评估指数。验证结果表明了拟议的评估过程和指数的有效性和实用性。风险评估结果可以为在地磁风暴下量化和防止电网风险提供参考。

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