基于最小二乘法引导的信赖域算法在电力系统动态负荷参数辨识中的应用

Application of the Trust Region Algorithm Based on the Method of Least Squares Power Guided in the Identification of System Dynamic Load Parameter

针对暂态电压稳定分析中动态负荷参数辨识问题,以考虑机械暂态过程的动态负荷模型为研究对象,结合最小二乘算法思想,构建动态负荷参数辨识模型,提出将基于二次插值的信赖域算法应用于电力系统动态负荷参数辨识中。IEEE的3机9节点标准模型仿真验证结果表明所应用的算法有效且可行。

Aiming at problems in the identification of dynamic load parameters for transient voltage stability analysis, and taking the dynamic load model of the mechanical transient as the research object,this paper constructs the dynamic load parameter identification model based on the idea of leastsquares algorithm,and proposes that the trust region algorithm based on the quadratic interpolation be applied in the identification of power system dynamic load parameters. The simulation results of IEEE 3-machine 9-bus standard model show that the proposed algorithm is effective and feasible.