微弧氧化脉冲电源的负载模型及其定量表征-IngentaConnect.PDFVIP

72 / 2011 6 Load Model and Quantitative Characterizat ion of Microarc Oxidation Pulse Supply 1 2 2 , , ( 1 , 16 18; 2 , 150001) 1 2 2 ZHAO Yufeng , YANG Wei , YANG Shiyan ( 1 School of Electric Information Engineering, North East Petroleum U niversity, Daqing 16 18, Heilongjiang, China; 2 School of Electrical Engineering and Automation, Harbin Institute of T echnology, Harbin 150001, China) : ( MAO) , , , , , , , : ; ; ; : T N86 : A : 10014 81(2011) Abstract: Based on the electrochemical theory and parameter fitting measure, the equivalent circuit model of electrobath load under pulse supply w as researched to match microarc oxidation ( MAO) pulse supply and its load. T he theory model of supply load w as obtained firstly by electrochemical im pedance spectroscopy ( EIS) . And then quantitative analysis of equivalent circuit model w as carried out by measuring step response of the load and curve fitting. T he parameter values and their trends of the equivalent circuit in the w hole MAO process w ere calculated. Finally simulation result according to these calculated parameters w as compared to experimental curve and the rationality of the circuit mod el was illustrated. Key words: microarc oxidation pulse supply; equivalent circuit model; load characteristic; curve fitting , , [ 1] ,