计及电转气-风-火-核-碳捕集的多源联合系统优化调度
Optimal Dispatch of Power System with P2G-Wind-Thermal-Nuclear-Carbon Capture Units
晁文浩 1袁至 1李骥2
作者信息
- 1. 新疆大学可再生能源发电与并网控制教育部工程研究中心,新疆乌鲁木齐 830017
- 2. 国网新疆电力有限公司电力科学研究院,新疆乌鲁木齐 830011
- 折叠
摘要
在风-火-核-碳捕集多源联合系统中,核电机组在参与电网调峰时存在调峰深度选择不精确的问题.此外,该多源联合系统还存在风电消纳不足的问题.为此,构建了一种计及线性化核电机组调峰深度模型的电转气(power to gas,P2G)-风-火-核-碳捕集多源联合系统,并对该系统进行了日前优化调度.首先,基于核电机组负荷跟踪模式,通过引入连续变量,提高了调峰深度选择的准确性;然后,分析了碳捕集电厂-P2G联合运行模式及需求响应资源对促进风电消纳的积极作用;最后,以系统综合运行成本最低为目标函数,同时考虑碳交易机制,在Matlab平台搭建仿真模型,验证了所构建多源联合系统的有效性.结果表明,相较于核电机组采用固定调峰档位的多源联合系统,所构建的多源联合系统能够在保证核电机组安全稳定运行的同时,实现风电完全消纳,系统碳排放量与综合运行成本分别下降了 13.74%与 6.27%,提高了系统运行的低碳性与经济性.
Abstract
In power systems consisted of wind power generation(WPG),thermal,nuclear,carbon capture units,the peak shaving depth could be inaccurately selected when nuclear power units participate in peak regulation.In addition,the excessive wind power curtailment could also be an issue.In this paper,a linearized peaking depth model for nuclear units is proposed considering their co-operation with power-to-gas(P2G),WPG,thermal,and carbon capture units.First,based on the load tracking mode of nuclear power units,the accuracy of peak shaving depth selection could be improved by adding continuous variables.Secondly,the joint operation mode of the carbon capture power plant-P2G and demand response resources could facilitate the accommodation of WPG.Finally,the minimization of system comprehensive operation costs is selected as the overall objective function.At the same time,the carbon trading mechanism is considered to build the simulation model on the Matlab platform to verify the effectiveness of the proposed model.The results show that compared with the multi-source combination system of fixed peak-module gears,the proposed multi-source combined system operation mode can ensure the safe and stable operation of the nuclear power unit while achieving WPG utilization.The carbon emissions and comprehensive operating costs have decreased by 13.74%and 6.27%,respectively,which improves the low-carbon and economics of system operation.
关键词
核电机组/风电消纳/碳捕集/电转气/优化调度Key words
nuclear power unit/wind power accommodation/carbon capture/power to gas/optimal dispatch引用本文复制引用
基金项目
新疆维吾尔自治区重点实验室开放课题(2022D04081)
国家自然科学基金资助项目(52067020)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据