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:
Dec. 04, 2018
Filed:
Jan. 21, 2016
Nr Electric Co., Ltd., Nanjing, Jiangsu, CN;
Nr Engineering Co., Ltd., Nanjing, Jiangsu, CN;
Dongbin Lu, Jiangsu, CN;
Yongping Wang, Jiangsu, CN;
Zhenxi Wang, Jiangsu, CN;
Qiang Zou, Jiangsu, CN;
NR ELECTRIC CO., LTD., Nanjing, Jiangsu, CN;
NR ENGINEERING CO., LTD., Nanjing, Jiangsu, CN;
Abstract
A high voltage direct current power transmission series valve group control device, is used for regulating a series circuit having two or more valve groups provided with controllable power semiconductors respectively. Each valve group is provided with a current regulation unit and a voltage regulation unit. The current regulation unit controls a direct current current flowing through a valve group corresponding thereto, and the voltage regulation unit controls a voltage across two ends of a valve group corresponding thereto. One valve group is selected from the series valve group as a master control valve group, while the others are taken as slave control valve groups. The master control valve group selects a trigger angle output by the current regulation unit to control same, and the slave control valve group selects a trigger angle obtained after the trigger angle transmitted from the master control valve group and an output value of the voltage regulation unit pass through a subtractor to control same.