THE STUDY ON CONFIGURATION CONTROL OF ELECTRICAL POWER SYSTEM WITH CASE-BASED REASONING

研究了基于案例推理(CBR)的电力系统故障恢复支持系统。对案例推理中的重要过程--案例库的构建、检索、评价、应用与修改、推理过程的解释等进行了研究。在故障恢复问题中，当前案例的应用和修改对应于电力系统中的负荷切换。明确了负载切换不可缺少的功能，并在系统中进行了实现。为了评估我们的故障恢复支持系统，以实际规模的电力系统为例，进行了各种条件下的故障恢复仿真。仿真结果表明：(1)用CBR方法得到最优解或次优解；(2)用CBR方法得到最优解或次优解；(2)用CBR方法得到最优或次最优解；(3)明确了案例库的构建方法和案例库中存储的案例的选择原则。

This study is concerned with the fault restoration support system in electrical power system using case-based reasoning (CBR). The construction of case-base, retrieval, evaluation, application and modification, explanation of reasoning-process of a case which are important processes in CBR are studied. These functions are embedded in our fault restoration support system.In the problem of fault restoration, the application and modification of a current case correspond to load switching in electrical power system. The indispensable functions of load switching are made clear, and implemented in our system. To evaluate our fault restoration support system, the simulations of fault restoration were carried out under exhaustively various conditions with practical scale electrical power system.The results of the simulations are as follows: (1)optimum or sub-optimum solutions are obtained by CBR, (2)the processing time is considerably short, and this feature is remarkable with complicated cases by CBR, (3)the method of construction of case- base, the guideline of the selection of cases which are stored in case-base are made clear.