CSME系统的EIV-RLS辨识建模法及其精度分析

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Abstract Contactless synchronous motor excitation(CSME)system has diversiform compensation networks and topological circuits,so the modeling method requires a high degree of versatility and portability.In view of the problem that traditional modeling method relies heavily on clear topology circuit and specific working state,this paper proposes an estimate initial value recursive-least-squares(EIV-RLS)identification modeling method.After sampling and transforming the input and output data,judged system order by akaike information criterion(AIC).Then obtained system parameter estimation by EIV-RLS algorithm and established system small signal model.Through Matlab/Simulink respectively simulated least-squares(LS),zero initial values recursive-least-squares(ZIV-RLS)and EIV-RLS identification modeling for series-series(S-S)type CSME system.Compared and analyzed the accuracy of three methods and verified the generality of EIV-RLS identification modeling method.Finally,through the test of CSME system prototype,verifies the EIV-RLS identification modeling method is effectiveness and accuracy.

Key words： Contactless excitation resonance compensation system identification recursive-least-squares method akaike information criterion

Received: 13 April 2016 Published: 20 June 2017

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TM46

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	Yan Meicun
	Wang Xudong

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Yan Meicun,Wang Xudong. CSME System EIV-RLS Identification Modeling Method and Its Accuracy Analysis[J]. Transactions of China Electrotechnical Society, 2017, 32(11): 126-135.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I11/126

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