考虑核电斜坡约束的排放/经济联合调度问题

R. Benabid, Salim Chennai, A. Messai, Dallal Kemikem
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引用次数: 0

摘要

核电站通常被设计为基本负荷运行模式,因此在传统的经济调度问题中不被考虑。然而,由于可再生能源对电网渗透率的提高,近年来核电站的设计主要用于负荷跟踪和频率控制,但技术限制更为严重。本文提出了一种考虑核电厂功率斜坡限制的增强型经济调度模型。最后将其表述为以运行成本和减排为目标函数的约束优化问题。为此提出了一种简单的能量系统。结果表明,无论是从运行成本还是二氧化碳排放角度来看,核电机组都是最受青睐的电厂。对于某些需求水平,考虑到功率斜坡限制,生产/发电平衡不能得到保证。因此,提出了一些技术解决方案来解决这一问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Combined Emission/Economic Dispatch Problem Considering NPPs Power Ramp Constraint
Nuclear Power Plants (NPPs) are usually designed to operate in baseload mode and therefore they are not considered in the conventional economic dispatch problem. However, due to the increase of renewable energy sources penetration ratio into the electric grid, NPPs are recently designed for load following and frequency control but with more severe technical limitations. This paper proposes an enhanced model of economic dispatch considering the power ramp limitation of NPP. This last is formulated as a constrained optimization problem considering operation cost and emission reductions as objective functions. A simple energy system is proposed for the application. The obtained results show that the NPP is the most favored power plant, either in terms of operation cost or CO2 emission. For some demand levels and with considering the power ramp limit, the production/generation balance is not guaranteed. Therefore, some technical solutions are proposed to solve this problem.
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