Reactive power coordinated control method and device for new energy station

By acquiring the grid connection point voltage for reactive power coordination control, the problem of high and low voltage surge faults in the power generation units of new energy power plants has been solved, achieving stable output of the power generation units and system synchronization, and improving the coordination and response speed of reactive power control.

CN114640124BActive Publication Date: 2026-06-12BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
Filing Date
2020-12-15
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

When the grid connection point voltage of a new energy power station is within the safe operating range, the power generation unit experiences a high-low voltage surge fault and exits the overall reactive power control, affecting the safe and stable operation of the system.

⚗Method used

By acquiring the grid connection point voltage of the new energy power plant, reactive power coordination control is performed to determine the target value of reactive power, and the power generation unit and reactive power compensation equipment are coordinated and controlled to ensure that their output voltage meets the preset conditions and avoid high and low voltage ride-through faults.

🎯Benefits of technology

This ensures that the voltage of the power generation unit does not exceed the safe operating range under normal grid connection voltage conditions, avoids faults, ensures system synchronization and stability, and improves the coordination and response speed of reactive power control.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided are a reactive power coordinated control method and device for a new energy station, the method comprising: acquiring a grid-connected point voltage of the new energy station, wherein the grid-connected point voltage of the new energy station is a bus high-voltage side voltage or a bus low-voltage side voltage of the new energy station; and performing reactive power coordinated control on a reactive power controlled source of the new energy station based on the acquired grid-connected point voltage of the new energy station, wherein the reactive power controlled source is a power generation unit in the new energy station or is the power generation unit and a reactive power compensation device in the new energy station, and the step of performing reactive power coordinated control on the reactive power controlled source of the new energy station comprises performing reactive power coordinated control on the reactive power controlled source of the new energy station in a case where an output voltage of the power generation unit in the new energy station meets a first preset condition or an output voltage of the power generation unit in the new energy station and an output voltage of the reactive power compensation device meet a second preset condition.
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