Sliding-mode control output system based on constant-power load direct-current micro-grid

• Main Authors: YANG BAOAN, XIAO PENG, LI JUNHONG, CHEN YUWEN, MA WENLIANG, SHI GUANG, SONG DENGFENG, YANG YONGPING, FENG JIANHUI, ZHAO ZHENGPING, ZHANG YUMEI, SONG MINGMING, ZHAO PEICHENG, HE CHUNYUAN, CHEN GANG, XU ZHENGGUO, ZHANG YING, GENG HUAIXU, YU HONGJIANG, YU SHUNJIN, LIU HUI, YANG ZHENGHONG, YANG JIE
• Format: Patent
• Language: Chinese; English
• Published: 16.12.2022
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention provides a sliding mode control output system based on a constant power load DC microgrid. The system comprises a system feedback linearization module, an error variable module, a composite sliding mode surface control module and a pulse width modulation module. The system feedback linearization module is used for acquiring direct-current bus voltage and inductive current in the direct-current micro-grid, generating linearization state information and sending the linearization state information to the error variable module; the error variable module is used for acquiring voltage and current reference values in a steady state in the direct-current micro-grid, calculating an error according to the voltage and current reference values in the steady state, the direct-current bus voltage and the inductive current, and sending the error to the composite sliding mode surface control module; the composite sliding mode surface control module is used for generating sliding mode control input information a