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:
Apr. 14, 2025
Filed:
Dec. 05, 2024
Zhejiang University, Hangzhou, CN;
Pengfei Hu, Hangzhou, CN;
Quansen Rong, Hangzhou, CN;
Yujing Li, Hangzhou, CN;
Huanhai Xin, Hangzhou, CN;
Ying Huang, Hangzhou, CN;
Longyue Wang, Hangzhou, CN;
Ping Ju, Hangzhou, CN;
Daozhuo Jiang, Hangzhou, CN;
Yanxue Yu, Hangzhou, CN;
Dong Wang, Hangzhou, CN;
Zhejiang University, Hangzhou, CN;
Abstract
A measurement method for the impedance of the converter at multiple operating points based on the secondary-side disturbance includes the following steps: superimposing the positive sequence current disturbance in the current sampling value; superimposing the positive sequence voltage disturbance in the voltage sampling value; determining whether measurement data of the converter at two or more current operating points are obtained, if so, based on the measurement data of the converter at two current operating points, calculating values of A(s) and B(s); further calculating values of coefficients at each frequency point, and obtaining the impedance value of the converter at multiple current operating points by calculation. The above-mentioned measurement method overcomes the disadvantages of high cost and complicated operation of the impedance measurement method based on the primary-side disturbance, and solves the problem of lacking the pre-judgment function.