Application of the Multi-level Grey Relational Analysis Method in Operation Assessment of Thermal Power Units
Xiangjie Liu · Proceedings of the CSEE · 2012
Based on operational characteristics of thermal power units,the multi-level gray relational analysis was proposed to assess the running condition of fossil-fired power plants comprehensively.Using the principal component analysis to extract the main factor of the unit operation state,the comprehensive evaluation index system was built;using the entropy weight to adjust the subjective weight defined by the method of analytic hierarchy process(AHP),the combination weight of objective evaluation was obtained;then multi-level gray relational analysis(MGRA) evaluation was presented.The running state of the fourteen 600 MW units in national thermal power competition in 2009 was comprehensively assessed.The simulation result is basically consistent with the results published by China Power Association,which proved that the evaluation method is effective.