Wind turbine dynamic model experiment platform inertia compensation method based on energy flow equivalence

CN116221035BActive Publication Date: 2026-07-24NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Filing Date
2023-03-13
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing technologies struggle to balance operational stability and simulation accuracy when simulating high rotational inertia multiples, making it impossible to meet the simulation requirements of rotational inertia multiples of over 100 times.

Method used

A rotational inertia compensation method based on energy flow equivalence is adopted. By identifying the rotational inertia of the wind turbine experimental platform, the compensation torque is calculated and a time delay alignment module is designed to correct the time delay of the aerodynamic torque command and control loop, thereby realizing the rotational inertia compensation strategy.

Benefits of technology

With a rotational inertia of over 100 times, the stability and dynamic performance simulation accuracy of the wind turbine experimental platform are improved, meeting the high-magnification simulation requirements of the test bench.

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Abstract

The application discloses a wind turbine dynamic model experiment platform rotational inertia compensation method based on energy flow equivalence. The application is based on the energy angle, and a rotational inertia compensation strategy based on energy flow equivalence is proposed by reproducing the energy flow direction of an actual wind turbine on a wind turbine dynamic model experiment platform. The rotational inertia of the wind turbine dynamic model experiment platform is obtained, the compensation torque is calculated directly by using the theoretical value of the aerodynamic torque and the electromagnetic torque, the aerodynamic torque instruction actually issued is calculated and corrected, the communication time delay of the driving side and the test side control loop of the wind turbine dynamic model experiment platform is obtained respectively, and finally the parameters of the time delay alignment module are determined according to the measurement results. Compared with the traditional rotational inertia compensation strategy based on the rotational speed difference, the rotational inertia compensation method provided by the application does not need to collect the transmission chain information, fundamentally eliminates the acceleration time delay, and has good stability and accuracy when simulating the wind turbine with a hundred times rotational inertia.
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