A synergistic control method and device for improving transient voltage stability of a new energy base

CN122267937APending Publication Date: 2026-06-23이너 몽골리아 일렉트릭 파워 그룹 컴퍼니 리미티드 이너 몽골리아 일렉트릭 파워 리서치 인스티튜트 브랜치
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Patent Information

Application Number
CN202610729328.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-26
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing independent control mode of single units in new energy power plants results in a lack of global coordination capabilities, slow control response speed, inability to adapt to complex power grid conditions, and inability to provide maximum transient voltage support during power grid faults.

Method used

A transient voltage collaborative control device is deployed at the station control layer of the power plant. A high-speed communication network is built through the IEC 61850 GOOSE protocol to establish a direct communication connection with the power generation unit, forming a flat control architecture. This enables rapid response and global collaborative control, dynamic evaluation of reactive power output, and support for the mode switching of the power generation unit under different grid strengths.

Benefits of technology

It significantly improves the transient voltage support capability and response speed of new energy power plants, enhances their adaptability to complex power grid conditions, and ensures stability and voltage recovery capability during power grid faults.

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Abstract

This invention provides a collaborative control method and apparatus for improving the transient voltage stability of a new energy power generation base. The method is executed by a transient voltage collaborative control device deployed at the station control layer of the new energy power generation base. The method includes: the transient voltage collaborative control device establishing a direct communication connection with the controllers of each new energy power generation unit within the base via a high-speed communication network; the transient voltage collaborative control device collecting electrical quantities at the grid connection point of the new energy power generation base in real time and identifying transient voltage faults caused by grid faults; when a transient voltage fault is identified, dynamically evaluating the maximum allowable reactive power output of the corresponding power generation unit; the transient voltage collaborative control device optimizing the allocation and calculation of reactive power control commands corresponding to each new energy power generation unit based on the total reactive power demand as the optimization objective; and the transient voltage collaborative control device issuing each reactive power control command to the corresponding new energy power generation unit for execution to support the transient voltage of the base.
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