Approach On The Multi-value Of The Identified Load Modeling's Parameters

The accuracy of the load model has great effects on power system stability analysis and control. This paper systematically develops a approach on multi-solution of the identified load model's parameters, principles guiding the sensitivity of synchronous machine's parameters, especially the sensitivity of Type6. Making the parameters of Type6 to truth value, we identified some of parameters when others are fixed and found some of them are many-valued. A new identification technique is described to derive parameters based on different sensitivity of parameters. Two cases are studied to illustrate the accuracy of the developed load model on describing the load dynamic characteristics in the actual power system.