High-voltage variable-frequency topology circuit and basic variable-current chain circuit

• Main Authors: LI GUANGMING, ZHANG XUWEN, LYU ZHIWEI, JI CHANG, ZHANG YEGUI, YANG WEI, ZHANG QILONG, WU HAN
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2023
• 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; BASIC ELECTRIC ELEMENTS; 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; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; GENERATION; RELAYS; SELECTORS; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a high-voltage frequency conversion topology circuit and a basic conversion chain circuit in the technical field of high-voltage frequency conversion. The high-voltage frequency conversion topology circuit comprises a high-voltage frequency converter; a dual-power-supply automatic change-over switch is arranged between every two basic current transformation chain circuits, and the input ends of a first standby power supply and a second standby power supply of the dual-power-supply automatic change-over switch are electrically connected with the high-voltage frequency converter; the output end of the first standby power supply and the output end of the second standby power supply are respectively and electrically connected with one basic variable current chain circuit, the first standby power supply and the second standby power supply are respectively provided with a first static contact and a second static contact, and a power supply switching assembly is arranged between the first sta