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电网技术  2014 

考虑预测功率变化趋势的风电有功分群控制策略

DOI: 10.13335/j.1000-3673.pst.2014.10.021, PP. 2752-2758

Keywords: 风力发电,动态分群,有功功率控制,超短期功率预测

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Abstract:

风电随机性和波动性导致有功功率调节难度大,为此提出了考虑功率预测趋势的风电有功动态分群控制策略。该策略利用风电超短期功率预测信息和风电场实时运行状态将风电场动态划分6类机群,给出了对风电功率先降后升和先升后降2种非单调变化趋势风电场群的功率预处理方法。在此基础上,确定了各类风电场群的控制原则,通过分析有功功率调节能力给出具体分配方法。利用国内某风电基地超短期功率预测数据进行仿真,验证了所提策略的有效性,结果表明通过风电场动态分群和优化控制,能够实现风电场有功功率的平滑控制,减少输出功率的波动次数。

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