單電感雙輸出Buck-Boost變換器的終端互補(bǔ)滑模自抗擾控制

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中圖分類號(hào)：TM46 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1007-449X（2025）07-0119-13

Terminal complementary sliding mode active disturbance rejection control for single-inductor dual-output Buck-Boost converter

HUANG Jinfeng， CHEN Xu， LI Conglin （School of Electrical Engineering，Shaanxi University of Technology，Hanzhong ，China）

Abstract ：Single-inductor double-output converter is an important component of portable equipment.Aiming at the problems of poor anti-disturbance performance and cross-influence of load fluctuations in the two output branches of the single-inductor double-output Buck-Boost converter，a cascaded extended state observer based terminal complementary sliding mode active disturbance rejection control strategy was proposed.Firstly，according to the theory of active disturbance rejection，the main circuit and branch of the converter were fited into the active disturbance rejection control system paradigm respectively，which is transformed into two independent second-order system models，so as to suppress the cross-influence between the two branches. Secondly，a terminal complementary sliding mode controllr was designed to replace the linear controler in the traditional active disturbance rejection control，and a cascade extended state observer was introduced to suppresshigh-frequency noise in the circuit，further improving the estimation accuracy of the observer，and improving the transient performance of the system under disturbance byusing the advantage of nonlinear control strategy. Then，the stability of the control system was proved by Lyapunov theory and Routh criterion. Finally，the MATLAB/Simulink simulation software and the experimental platform were used to verify three different control strategies.The experiments show that the proposed control can well resist the disturbance，suppress the noise and the cros-influence between the two branches，and improve the transient performance of the system.

Keywords： single-inductor dual-output Buck-Boost converter; terminal complementary sliding mode active disturbance rejection control； cross influence ； disturbance immunity

0引言

隨著電力電子技術(shù)與便攜式設(shè)備的快速發(fā)展，電子器件內(nèi)部呈現(xiàn)出子模塊多樣化的發(fā)展趨勢，而不同的子模塊往往需要不同等級(jí)的電源電壓[1-2]單電感雙輸出（single-inductor dual-output，SIDO）變換器結(jié)構(gòu)簡單、無電磁干擾，僅需要一個(gè)電感就可以提供兩個(gè)不同電壓等級(jí)的輸出電壓，一定程度上減小了電源體積，提高了供電效率[3-4]。（剩余15954字）