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Research about Online Security Warning and Risk Assessment of Power Grid Based on Energy Management System

机译:基于能源管理系统的电网在线安全预警与风险评估研究

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摘要

In this paper, online security warning and risk assessment of power grid are proposed, based on data from EMS (Energy Management System), combined with information of real-time operation state, component status and external operating environment. It combines the two factors, contingency likelihood and severity, that determine system reliability, into risk indices on different loads and operation modes, which provide precise evaluation of the power grid's security performance. According to these indices, it can know the vulnerable area of the system and whether the normal operating mode or repair mode is over-limited or not, and provide decision-making support for dispatchers. Common cause outages and equipment-aging are considered in terms of the establishment of outage model. Multiple risk indices are defined in order to reflect the risk level of the power grid more comprehensively.
机译:本文基于能源管理系统(EMS)的数据,结合实时运行状态,组件状态和外部运行环境信息,提出了电网安全预警和电网风险评估方法。它将确定系统可靠性的两个因素(或有可能性和严重性)组合为不同负载和操作模式下的风险指标,从而可以精确评估电网的安全性能。根据这些指标,可以了解系统的易受攻击区域,以及正常运行模式或维修模式是否受到过度限制,并为调度员提供决策支持。在建立停机模型时考虑了常见原因停机和设备老化。定义了多个风险指数,以便更全面地反映电网的风险水平。

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