Analysis and Implementation of Real Number Extended Sliding Surface with Integral Compensation for DC-AC Converters

14th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Chang, E.C.^1 ; Wu, R.C.^1 ; Liao, K.Y.^1

Department of Electrical Engineering, I-Shou University, No.1, Syuecheng Rd., Dashu District, Kaohsiung City

84001, Taiwan^1

关键词: DC / AC converters;    Incomplete system;    Integral compensation;    Output voltages;    Partial systems;    Steady state errors;    System uncertainties;    Voltage harmonics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/557/1/012111/pdf
DOI  :  10.1088/1742-6596/557/1/012111

来源: IOP

【 摘 要 】

This paper proposes a real number extended sliding surface (RNESS) with integral compensation (IC) for the application of DC-AC converters. Classic sliding surface (CSS) is insensitive to system uncertainties, but in sliding action its system dynamics becomes a reduced-order dimension and thus lost the partial system dynamics. For recovering incomplete system response, the RNESS is designed and can retrieve incomplete system response of the CSS. However, steady-state errors still exist in system dynamics of the RNESS and cause high converter voltage harmonics. To overcome steady-state errors, a modified RNESS by the addition of IC is proposed. With the proposed method, the system yields a DC-AC converter with high-quality AC output voltage. Experiments are performed in support of the proposed method.