一种调频辅助服务市场水电站AGC与一次调频协调控制方法

By employing the FCP-100 programmable logic controller based on the FBD language in hydropower stations, the interference problem between AGC and primary frequency regulation in the frequency regulation ancillary services market was solved by coordinating the AGC and primary frequency regulation in the hydropower station, thus achieving load stability and accuracy of the output curve.

CN116345487BActive Publication Date: 2026-07-17HUANENG LANCANG RIVER HYDROPOWER CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUANENG LANCANG RIVER HYDROPOWER CO LTD
Filing Date
2023-03-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the context of the frequency regulation ancillary services market, the mutual interference between the AGC control and primary frequency regulation actions of hydropower stations leads to problems such as load deviation, repeated oscillations, and deviation of the overall plant output from the load output plan curve.

Method used

The FCP-100 programmable logic controller based on FBD language is adopted. By acquiring the actual output and allocated output of the AGC of the non-operational units, a load deviation AGC redistribution method model after the primary frequency regulation action is established. Furthermore, a primary frequency regulation and secondary frequency regulation coordination model based on auxiliary assessment optimization is established to achieve coordinated action of primary and secondary frequency regulation.

Benefits of technology

This reduces the mutual interference between primary frequency regulation and AGC control, stabilizes the overall load output of the hydropower station, avoids repeated load fluctuations and output deviations from the planned curve, and meets the requirements of dispatch AGC technical specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供了一种调频辅助服务市场水电站AGC与一次调频协调控制方法,通过编程设置“未参加AGC机组的实发值与设定值的差值在相邻两个计算周期大于全厂AGC设置死区的设定倍数则重新进行AGC负荷分配”策略,只有未参加AGC的机组带来的负荷偏差才会触发此策略,避免由机组一次调频动作带来的负荷偏差导致AGC重新分配避免一次调频调整的负荷被AGC调节回原位,防止出现负荷反复震荡、负荷调节不到位、全厂实际出力偏离全厂负荷出力计划曲线等问题,减少一次调频和AGC控制的相互干扰,稳定水电站全厂负荷出力。
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