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arXiv 1408.2644math.OC
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通过模拟电厂温度提高MIP机组组合中启动费用公式的准确性和效率

Improving Accuracy and Efficiency of Start-up Cost Formulations in MIP Unit Commitment by Modeling Power Plant Temperatures

Matthias Silbernagl, Matthias Huber, René Brandenberg

摘要:

本文提出了一种改进的混合整数模型来求解火电机组组合问题。通过为每个热单元的温度引入新的变量,停机时间相关的启动成本被准确地建模,并且具有比最先进的配方更低的完整性差距。这种新的方法显着提高了计算效率相比,现有的配方,即使他们只是一个粗略的近似模型的启动成本。我们的研究结果在使用CPLEX的真实测试案例中得到了验证。

英文摘要:

This paper presents an improved mixed-integer model for the Thermal Unit Commitment Problem. By introducing new variables for the temperature of each thermal unit, the off-time-dependent start-up costs are modeled accurately and with a lower integrality gap than state-of-the-art formulations. This new approach significantly improves computational efficiency compared to existing formulations, even if they only model a rough approximation of the start-up costs. Our findings were validated on real-world test cases using CPLEX.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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