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. 28, 2023
Filed:
Oct. 01, 2020
State Grid Jiangsu Electric Power Co., Ltd., Nanjing, CN;
State Grid Jiangsu Electric Power Co., Ltd. Economic Research Institute, Nanjing, CN;
State Grid Jiangsu Electric Power Design Consulting Institute Co., Ltd., Nanjing, CN;
State Grid Corporation of China, Beijing, CN;
State Grid Jiangsu Electric Power Co., Ltd. Marketing Center, Nanjing, CN;
Hui Cai, Nanjing, CN;
Zhenjian Xie, Nanjing, CN;
Zhuyi Peng, Nanjing, CN;
Feifei Zhao, Nanjing, CN;
Xingning Han, Nanjing, CN;
Caixuan Xu, Nanjing, CN;
Chengchen Huang, Nanjing, CN;
Zheng Xu, Nanjing, CN;
Ming Yan, Nanjing, CN;
Zheren Zhang, Nanjing, CN;
Wanchun Qi, Nanjing, CN;
Wenjia Zhang, Nanjing, CN;
Wentao Sun, Nanjing, CN;
Chen Li, Nanjing, CN;
Quanquan Wang, Nanjing, CN;
Boliang Liu, Nanjing, CN;
STATE GRID JIANGSU ELECTRIC POWER CO., LTD., Nanjing, CN;
STATE GRID JIANGSU ELECTRIC POWER CO., LTD. ECONOMIC RESEARCH INSTITUTE, Nanjing, CN;
STATE GRID JIANGSU ELECTRIC POWER DESIGN CONSULTING INSTITUTE CO., LTD., Nanjing, CN;
STATE GRID CORPORATION OF CHINA, Beijing, CN;
STATE GRID JIANGSU ELECTRIC POWER CO., LTD. MARKETING CENTER, Nanjing, CN;
Abstract
Provided is a control method for a parallel MMC unit of a LCC-MMC hybrid cascade converter station. The control strategy includes: 1) numbering all MMC units connected in parallel in a MMC valve manifold; (2) for a MMC unit using a constant direct-current voltage control manner, calculating a direct-current instruction value of the MMC unit according to a direct-current measurement value; (3) for a MMC unit using a constant active power control manner, calculating an active power instruction value of the MMC unit according to the rated capacity of the MMC unit and a direct-current instruction value of a system rectifier station; (4) for the MMC unit using the constant direct-current voltage control manner, correcting a direct-current voltage instruction value of the MMC unit by using the direct-current instruction value and the direct-current measurement value, and controlling the MMC unit according to the corrected direct-current voltage instruction value.