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考虑最大风电容量接入的带禁止区间实时经济调度模型

DOI: 10.13334/j.0258-8013.pcsee.2015.04.001, PP. 759-765

Keywords: 经济调度,风电并网,禁止区间,混合整数二次规划,大M法,互补约束

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Abstract:

发电机在其可行运行区域的某些区间范围内,由于自身物理条件的限制,可能使得轴承振动放大,因此需设置一些禁止区间,而禁止区间会使经济调度模型连续可调的发电机出力变成分段连续调节量。另一方面,发电机需要留有一定的备用容量以应对大规模风电资源接入电网后的不确定性,但禁止区间在一定程度上会降低系统的备用容量。因此,建立了以发电机成本最小和风电接纳量最大为目标的带禁止区间的经济调度模型,并采用混合整数二次规划方法进行求解。分别以6机、15机和多机系统进行仿真验证,结果表明所提方法能够快速有效地得到最优发电机出力和最大风电接纳量,可以较好地适用于实时经济调度系统。

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