电力负荷建模的在线统计综合

ABSTRACTPower load is the important part of power system .Load modeling hasbecome a crux factor,which is restricted veracity and trustiness of power systemsimulation results.Conventional Component-Based Modeling Approach hasn'ton-line real time so it isn't used in project extensively,which limits thedevelopment of component Based Load Modeling Approach to some extent.Due to these limitations,the paper presents On-line Component-Based LoadModeling.The work of this paper as follows:1.The paper presents On-line Component-Based Load Modeling.Loadequipments are classified that induction-motor load and impedance load;allusers are classified that industry load and other load .Its basic steps are thatusers classified-the investigation of typical users-founds the motor-rate ofdifferent trades-gets the data of load control on-linely-counts users'poweron-linely-the synthesis of low voltage generatrix-the count of 110kv's lineconsidered-the synthesis of 110kv generatrixs.2.The investigation of motor-rate is the crux factor of load modelingrationality.The paper expounds that the importance of motor rate in loadmodeling,the rogatory methods of load,the course,and how to implement.Thepaper expounds that how to investigate motor-rate for getting reliable motor-rate3.The paper introduces that how to get information of users'power andEMS',and to decide to amend the motor-rate by data transmitted.and Combinesthe data transmitted with motor-rate counts induction-motor power andimpedance power of every trade's every user,and introduces that aggregationtheory is used in on-line Component-Based load modeling,and the aggregationof identic trade and the aggregation of different trades by using typicalparameters.The method has been successfully applied to Fujian Power Grid,the results show the feasibity of the method.Key words:Power System;Load Modeling;On-line Component Based LoadModeling Approach;Motor Rate