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电网技术  2015 

考虑电量可实现性和启停功率轨迹的火电机组组合混合整数线性规划模型

DOI: 10.13335/j.1000-3673.pst.2015.10.030, PP. 2882-2888

Keywords: 机组组合,混合整数线性规划,电量可实现性,启停功率轨迹

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Abstract:

为解决传统模型过于简化以致调度计划存在电量不可交付、产生系统频率偏差的问题,提出一种考虑电量可实现性和启停功率轨迹的火电机组组合混合整数线性规划(mixed-integerlinearprogramming,MILP)模型,该模型引入一类0-1变量表示燃煤机组的运行状态,便于在其加热、升负荷、调度和降负荷4个阶段的逻辑判断和发电量计算;根据燃气燃油机组启停迅速的特点,对其运行状态重新建模;并支持冷、温、热等多种启动类型和1h、15min等多种调度时段长度。10’1000机24时段系统的计算结果表明所提模型更符合实际运行情况,可很好地解决电量不可交付问题,且具有较高的求解效率。

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