A method and related apparatus for testing the grid connection performance of wind turbines / inverters

By shifting the test point from the high-voltage primary side to the low-voltage secondary side and using a small voltage disturbance generator to simulate grid disturbances, the economic, safety, and feasibility issues of wind turbine/inverter grid-connected performance testing were resolved, achieving efficient testing results.

CN122131045APending Publication Date: 2026-06-02XIAN THERMAL POWER RES INST CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN THERMAL POWER RES INST CO LTD
Filing Date
2026-03-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing methods for testing the grid connection performance of wind turbines/inverters suffer from poor economic efficiency, poor feasibility, low safety, and low efficiency, making it particularly difficult to achieve efficient and safe testing in remote areas.

Method used

The test point is moved from the high-voltage primary side to the low-voltage secondary side. By connecting the grid connection point voltage acquisition port to the secondary side of the voltage transformer at the grid connection point of the new energy power plant, a small voltage disturbance generator is used to simulate grid disturbances and monitor the operating parameters of the wind turbine/inverter.

Benefits of technology

It significantly reduces testing costs, improves safety and feasibility, simplifies testing processes, and enhances testing efficiency, making it suitable for new energy projects in remote areas.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122131045A_ABST
    Figure CN122131045A_ABST
Patent Text Reader

Abstract

This invention discloses a method and related apparatus for testing the grid-connected performance of a wind turbine / inverter, comprising: adding a grid-connected point voltage acquisition port to the wind turbine / inverter and connecting the grid-connected point voltage acquisition port to the secondary side of the voltage transformer at the grid connection point of a new energy power station; configuring the data acquisition system of the wind turbine / inverter to acquire the secondary voltage signal at the grid connection point and transmit it to the controller of the wind turbine / inverter; connecting a voltage disturbance generator in series in the secondary circuit between the secondary side of the voltage transformer and the voltage acquisition port of the wind turbine / inverter; activating the test mode after starting the wind turbine / inverter to the grid-connected operation state; applying a preset voltage disturbance signal to the voltage acquisition port of the wind turbine / inverter through the voltage disturbance generator; monitoring and recording the operating parameters of the wind turbine / inverter during the voltage disturbance. This method and related apparatus transfer the test point from the high-voltage primary side to the low-voltage secondary side to realize grid-connected performance testing.
Need to check novelty before this filing date? Find Prior Art