The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2026
Filed:
Feb. 14, 2023
Electric Power Research Institute of Yunnan Power Grid Co. , Ltd, Kunming, CN;
Abstract
In the present invention, a system and a method for unbalance adjustment for inverter split-phase controlling and distribution transformer current are provided, in which the system for unbalance adjustment for inverter split-phase controlling and distribution transformer current includes a distributed power supply and a three-phase full-bridge inverter. The three-phase full-bridge inverter is connected to the distributed power supply, and the three-phase full-bridge inverter is connected to a three-phase line through a three-phase reactor. When an unbalance degree corresponding to the three-phase line is greater than a preset starting value, a three-phase compensation current reference value is obtained according to the present front-end three-phase load current, back-end three-phase load current and capacitor voltage control component, such that the three-phase full-bridge inverter can output the three-phase compensation current based on the three-phase compensation current reference value. Therefore, in embodiments of the present invention, the three-phase full-bridge inverter can use the output power of the distributed power supply to output the compensation current required for each phase of the three-phase line, realizing the unbalanced control in the three-phase current of the distribution transformer, so that the three-phase current of the distribution transformer reaches balance.