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:
Mar. 01, 2022
Filed:
May. 13, 2019
Sungrow Power Supply Co., Ltd., Anhui, CN;
Renxian Cao, Anhui, CN;
Zongjun Yang, Anhui, CN;
SUNGROW POWER SUPPLY CO., LTD., Anhui, CN;
Abstract
A circuit for component voltage limitation and an apparatus for applying the same. A detection-and-control unit detects a parameter of a photovoltaic-cell string, and controls operation of a switch unit according to the parameter. In a case that the switch unit controls at least one photovoltaic cell connected to the switch unit to operate in a voltage-limited mode according to control of the detection-and-control unit, a voltage of the photovoltaic-cell string can be reduced. In a case that that the switch unit controls a photovoltaic cell operating in a voltage-limited mode to resume a normal output according to control of the detection-and-control unit, an output voltage of the photovoltaic-cell string can be increased. The rate of utilization on the direct voltage and the PVIR of DC/AC are improved for the photovoltaic system.