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:
May. 19, 2026
Filed:
Jul. 10, 2024
North China Electric Power University, Beijing, CN;
SHANGHAI UNIVERSITY OF ELECTRIC POWER, Shanghai, CN;
STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER COMPANY, Shanghai, CN;
NORTH CHINA ELECTRIC POWER UNIVERSITY, Beijing, CN;
Abstract
A method and system for tracking the oscillation path of a direct drive wind farm involve: collecting the port current, the current and state variables of the current inner loop, the dynamic angle and state component of the phase-locked loop and the phase and amplitude of the fault point voltage of each wind turbine generator in a dominant oscillation mode period which is used as acquisition period, and then obtaining corresponding instantaneous value of each oscillation component of the direct drive wind turbine generator; obtaining energy flow of coupling energy transfer path of direct drive wind farm in each acquisition period based on the instantaneous value; tracking the key energy transfer path of the direct drive wind farm according to the energy flow, so as to realize the stability control of the direct drive wind farm.