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:
Feb. 25, 2020
Filed:
Feb. 27, 2018
Sungrow Power Supply Co., Ltd., Hefei Anhui, CN;
Yang Liu, Hefei Anhui, CN;
Changxin Zhang, Hefei Anhui, CN;
Wei Cao, Hefei Anhui, CN;
Yong Yu, Hefei Anhui, CN;
SUNGROW POWER SUPPLY CO., LTD., Hefei, Anhui, CN;
Abstract
An off-grid energy storage system includes n energy storage inverters identified by P, P, . . . , Psequentially, direct current sides of the inverters are connected to storage batteries, and alternate current sides of the inverters are connected in parallel. The storage battery connected to the direct current side of Pis identified by B, where j=2, 3, . . . , n. A control system for an output waveform of Phas a voltage-current double loop control structure, and a control system for an output waveform of Phas a current loop control structure. A current loop given value of Pis obtained by adding a current correction value of Pto a current loop given value of P. The current correction value of Pis used for causing Bto have the same operating parameter as B.