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电力系统负荷的时变性和随机性给实时或超实时暂态稳定分析带来了困难。提出一种可用于实时或超实时暂态稳定分析的快速负荷建模方法,为解决这一难题提出了新思路。该方法以实时辨识、实时使用为主要思想,采用强跟踪滤波器进行暂态稳定分析的快速负荷建模,并用辨识结果实时更新超实时暂态稳定程序中的负荷模型。仿真结果表明,所提出的快速负荷建模方法能够满足暂态稳定分析对负荷建模的实时或超实时需求。
Time-varying and stochastic power system load brings difficulties to real-time or ultra-real-time transient stability analysis. A fast load modeling method, which can be used for real-time or ultra-real-time transient stability analysis, is proposed and a new idea is put forward to solve this problem. The method takes real-time identification and real-time application as the main idea, and uses fast tracking model to carry out transient stability analysis by using strong tracking filter. The load model in the ultra-real-time transient stability program is updated in real time with the recognition result. The simulation results show that the proposed fast load modeling method can meet the real-time or ultra-real-time requirements of load modeling by transient stability analysis.