首页|考虑风电运行轨迹与场景划分的场级主动调压优化控制策略

考虑风电运行轨迹与场景划分的场级主动调压优化控制策略

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  • 国家科技期刊平台
  • NETL
  • NSTL
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传统风电场跟随主站电压指令调节的方式容易导致站内无功源频繁波动、站内无功裕度不足,影响风电场的调压能力.为此提出了一种考虑风电运行轨迹与场景划分的场级主动调压优化控制策略.首先,基于风电场功率预测数据和有功-电压灵敏度曲线,绘制并网点电压波动轨迹,结合AVC子站接收到的电压指令,协调风机和SVG的无功输出,有效降低了无功设备的调节频次.其次,根据电压跌落幅度划分详细运行场景,通过调整SVG的控制模式,有效抑制了电网电压的大幅波动.最后,构建了包含AVC功率控制器的仿真测试平台,验证对比了所提方法相对于传统风电场AVC控制策略在降低无功调节频次、提升无功裕度、主动电压支撑方面的效果,为实现风电场主动调压提供了新的解决思路.
Optimal Control Strategy for Field-Level Active Voltage Regulation Considering Wind Power Operation Trajectory and Scene Division
The traditional way of regulating wind farm based on the voltage command from the main station often leads to frequent fluctuations of reactive power sources within the sta-tion as well as insufficient reactive power margin,which af-fects the regulation capacity of the wind farm.Therefore,a new active voltage regulation optimization control strategy at field level is proposed considering wind power operation trajectory and scene division.First,based on the power prediction data of the wind farm and the active voltage sensitivity curve,the voltage fluctuation trajectory of the parallel node is drawn.The coordination of reactive power output of the wind turbine and the SVG,in combination with the voltage command received by the AVC substation,effectively reduces the regulation fre-quency of reactive power equipment.The detailed operation scenarios are further categorized based on the amplitude of the voltage drop,and the effective suppression of large ge-fluctu-ations of grid voltage is realized by adjusting the control mode of SVG.Finally,a simulation test platform incorporating AVC power controller is constructed to verify the effectiveness of the proposed method in reducing reactive power regulation fre-quency,enhancing the reactive power margin,and providing active voltage support compared to the traditional AVC control strategy of wind farms.This offers a new solution for realizing active voltage regulation in wind farms.

field-level voltage control of wind farmvoltage fluctuation trajectory predictionreactive power coordination optimizationvoltage support capabilitymagnitude of the voltage drop

刘京波、吴林林、李琰、张扬帆、杨霖、郇政林

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国网冀北电力有限公司电力科学研究院(华北电力科学研究院有限责任公司),北京市西城区 100045

风光储并网运行与实证技术国家电网公司实验室,北京市西城区 100045

风电场级电压控制 电压波动轨迹预测 无功协调优化 电压支撑能力 电压跌落幅度

国家电网有限公司总部管理科技项目资助

5108-202218280A-2-306-XG

2024

10.19725/j.cnki.1007-2322.2022.0302

现代电力
华北电力大学

现代电力

CSTPCD北大核心
影响因子：0.807
ISSN：1007-2322
年,卷(期)：2024.41(4)
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