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研究BCU方法在电力系统暂态稳定分析中的实际应用 .BCU方法是一种寻找相关不稳定平衡点的系统方法,与其它方法相比,它在可靠性和计算量方面更为有效.但一些例子也表明,基于BCU的方法有时会产生与时域仿真不一致的结果.本文研究了影响BCU方法实际应用的几个问题,在对一些电力系统大量测试的基础上发现,BCU方法和其它时域仿真方法结果的差异通常可以通过某种启发式方法排除或鉴别出来.为此,文中将启发式修正逻辑集成于BCU方法中,IEEE系统的实际测试表明了这种集成BCU方法的有效性.“,”The practica l application of the BCU method in the transient stability an alysis of power system is studied in this paper.The BCU method is a systematic m ethod to find the control ling unstable equilibrium point.Compared with other methods it is more e ffective in terms of its reliability and the required computation efforts.At the same time,some counter examples show that the method based upon the BCU techniqu e seems to produce results which are at variance with time domain simulations.I n this paper,some problems which affect practical applications of the BCU method are investigated.Based on a large number of tests for some power systems,the di screpancy found between the results from BCU method and those from time domain s imulation generally can be eliminated or identified by some heuristic methods. A heuristic remedial logic is developed and is added to the BCU method.The resul ts using the BCU method with the logic to two IEEE test systems (50-generator a nd 202-generator systems) further demonstrate the potential of the BCU method i n the stability analysis of large-scale power systems.