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:
Jan. 19, 2021
Filed:
Dec. 17, 2019
Delta Electronics (Shanghai) Co., Ltd., Shanghai, CN;
DELTA ELECTRONICS (SHANGHAI) CO., LTD., Shanghai, CN;
Abstract
A hysteresis control method for inverter and an inverter based on hysteresis control are disclosed. The inverter is electrically connected to a power grid, and the method includes: Step S, sampling a grid voltage V(z) and an output current I(z) of the inverter; Step S, calculating a present period hysteresis bandwidth H(z) based on the grid voltage V(z) sampled in step S; Step S, predicting a next period hysteresis bandwidth H(z+1); Step S, correcting the present period hysteresis bandwidth H(z) based on the next period hysteresis bandwidth H(z+1) obtained in step S, to obtain a final hysteresis bandwidth H(z); and Step S, controlling an output driving signal according to the output current I(z) of the inverter and the final hysteresis bandwidth H(z) to control the operation of the inverter.