The Application of Posterior Error Criterion to Dynamic Equivalence Evaluation

The scale and complexity of the power system are increasing, which carry out a lot of difficulty and effort to detailed simulation of the whole system, so effective dynamic equivalence is the premise of the modeling of electromagnetic transient simulation of large power systems. This paper targeting at the present situation of lack quantization standard in the dynamic equivalence, this paper took the posterior error criterion of grey forecasting model into the Dynamic Equivalence Evaluation, then proposed more detailed and exactly quantization standard appraisal index system, further perfect the error evaluation system of dynamic equivalence efficiency.