CAJ | 학술논문

提出采用拟合阶跃响应曲线的方法建立开关变换器的小信号模型。该方法从系统辨识的角度出发,将开关变换器看做一个黑匣子,采用最小二乘参数估计的方法,根据PSPICE仿真输出的阶跃响应数据,最终得到开关变换器的小信号模型。用此方法对BUCK及BUCK-BOOST变换器进行建模,并将此方法与以往的方法比较,验证了此方法所建模型的可行性。
제출채용의합계약향응곡선적방법건립개관변환기적소신호모형。해방법종계통변식적각도출발,장개관변환기간주일개흑갑자,채용최소이승삼수고계적방법,근거PSPICE방진수출적계약향응수거,최종득도개관변환기적소신호모형。용차방법대BUCK급BUCK-BOOST변환기진행건모,병장차방법여이왕적방법비교,험증료차방법소건모형적가행성。
A small signal modeling method using least squares parameter estimation algorithm to fit the step response curve was proposed from the perspective of system identification. The method regarded switch power converter as a black box, with the PSPICE simulation input and output data of switch power converter for modeling. The model of BUCK and BUCK-BOOST converter was built using the method and compared to the model for the conventional method. Simulation results verify the feasibility of the proposed method.