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. 24, 2017
Filed:
Jul. 30, 2015
Sungrow Power Supply Co., Ltd., Hefei, CN;
Xiaoxun Li, Hefei, CN;
Zhiqiang Han, Hefei, CN;
Haoyuan Li, Hefei, CN;
Xiaodong Mei, Heifei, CN;
Touming Wu, Hefei, CN;
Chao He, Hefei, CN;
Yang Song, Hefei, CN;
SUNGROW POWER SUPPLY CO., LTD., Hefei, CN;
Abstract
A method for start control of photovoltaic inverter, a system thereof, and a photovoltaic power generation system are provided. A fan of the photovoltaic inverter is controlled to operate in a case that input voltage of the photovoltaic inverter is greater than a start threshold, and the fan operation is used as a load. Input voltage drop before and after the fan operates is obtained, and in a case that the input voltage drop is less than or equal to a voltage determination threshold, the photovoltaic inverter is controlled to start a grid connection. The voltage determination threshold is changed based on a power determination threshold of the photovoltaic inverter.