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首页> 外文期刊>Generation, Transmission & Distribution, IET >Design and tests of a super real-time simulation-based power system real-time decision-making emergency control system
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Design and tests of a super real-time simulation-based power system real-time decision-making emergency control system

机译：基于超实时仿真的电力系统实时决策应急控制系统的设计与测试

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摘要

In many China's enterprise-owned power grids (EPGs), the frequently changing operation state and the poor reliability of some outdated facilities may lead to inaccuracy or even malfunctions of the traditional pre-decision-making emergency control systems, which have already caused several blackouts in EPGs. To solve this problem, a real-time decision-making emergency control system based on the detailed time-domain transient stability simulation is designed. Based on the trajectory characteristics of the stability restoration process of EPGs, the stability restoration criteria are proposed to significantly shorten the simulation time needed to judge the elimination of a certain stability problem. Fast decision-making algorithms for frequency instability, rotor angle instability and branch overload with relatively low computational cost are introduced. Control strategies can be determined within a specific time after faults are detected. The corresponding countermeasures are directly executed when the strategy is obtained. The system configuration is designed to be capable of dealing with complicated and unanticipated faults, such as cascading outages and unexpected grid splitting. The test results of a 31-node practical EPG show that the proposed algorithms and the system configuration are practical and efficient. This work is a meaningful exploration of the real-time decision-making emergency control system.
机译：在许多中国企业拥有的电网（EPGS）中，经常变化的操作状态和某些过时设施的可靠性可能导致传统的预防紧急控制系统的不准确甚至发生故障，这已经导致了几个停电在epgs。为了解决这个问题，设计了一种基于详细的时域瞬态稳定性仿真的实时决策应急控制系统。基于EPG的稳定性恢复过程的轨迹特性，提出了稳定恢复标准，以显着缩短判断消除某种稳定性问题所需的模拟时间。介绍了频率不稳定性，转子角度不稳定性和具有相对低计算成本的转子过载的快速决策算法。可以在检测到故障后的特定时间内确定控制策略。当获得策略时，直接执行相应的对策。系统配置旨在能够处理复杂和意外的故障，例如级联中断和意外的网格分裂。 31节点实用EPG的测试结果表明，所提出的算法和系统配置是实用且有效的。这项工作是对实时决策应急控制系统的有意义探索。

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