Title :
Parameter Identification of Power Electronic Circuits Based on Hybrid Model
Author :
Ma, Hao ; Mao, Xingyun ; Zhang, Ni ; Xu, Dehong
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou
Abstract :
In this paper a unified hybrid model is given for power electronic circuits based on hybrid system theory. Based on this model, a parameter identification method that can be applied in fault diagnosis is presented. Then hybrid models of six kinds of DC/DC circuits (including CCM and DCM mode), three-phase rectifier and three-phase inverter are presented. And the parameters can be identified by using least square algorithm based on these models. The validity of this method is validated by experiments in which the inductance, capacitance, load resistance and ESR of capacitor of buck circuit are identified
Keywords :
DC-DC power convertors; fault diagnosis; invertors; least squares approximations; parameter estimation; rectifying circuits; CCM; DC/DC circuits; DCM; ESR; buck circuit capacitor; fault diagnosis; hybrid system theory; least square algorithm; parameter identification; power electronic circuits; three-phase inverter; three-phase rectifier; unified hybrid model; Capacitance; Circuits; Fault diagnosis; Inductance; Inverters; Least squares methods; Parameter estimation; Power electronics; Power system modeling; Rectifiers;
Conference_Titel :
Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th
Conference_Location :
Recife
Print_ISBN :
0-7803-9033-4
DOI :
10.1109/PESC.2005.1582038
