Chaotic control method for grid-connected inverter of wind power system

• Main Authors: WANG XIANG'AO, PENG JIN, LI SUYANG, PAN YAOHUI, WANG XIANBING, SUN KAIYONG, WU ZHE
• Format: Patent
• Language: Chinese; English
• Published: 10.06.2025
• 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 chaos control method of a wind power system grid-connected inverter, which comprises the following steps: establishing a wind power system grid-connected inverter mathematical model which comprises dynamic characteristics of a wind driven generator, an inverter and a power grid, and designing a chaos controller based on a physical law and a circuit theory, the chaos controller generates a control signal through chaos mapping and a feedback control strategy in a chaos theory, design and establishment of the chaos controller are related to nonlinearity and uncertainty of the system, the chaos controller is controlled through the grid-connected inverter, the control signal generated by the chaos controller is applied to the grid-connected inverter, and the grid-connected inverter is controlled to control the grid-connected inverter. The output voltage and the output current of the grid-connected inverter are adjusted, and the output of the inverter is kept to be matched with the frequenc