| 引用本文: | 谢平平,吕思宇,刘德旭,等.考虑火电碳排放强度区间分异的火风光储系统低碳经济优化调度[J].电力系统保护与控制,2025,53(13):142-151.[点击复制] |
| XIE Pingping,LÜ Siyu,LIU Dexu,et al.Low-carbon economic optimal dispatch of thermal-wind-solar-storage systems considering interval differentiation of thermal power carbon emission intensity[J].Power System Protection and Control,2025,53(13):142-151[点击复制] |
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| 摘要: |
| 在能耗“双控”向碳排放“双控”转变背景下，针对现有电力系统调度优化着重约束碳排放总量，轻视约束碳排放强度，导致火电运行碳排放强度较大、经济性较差的问题，提出了一种考虑火电碳排放强度区间分异的异质能源电力系统低碳经济调度方法。首先分析了火电机组碳排放强度与负荷率关系曲线的分异特征，用低碳强度区、高碳强度区及过渡区划分火电运行区间。其次以火电低碳强度区运行时长最大、系统碳排放量最小、系统运行成本最小为目标，建立了兼顾碳排放“双控”与运行经济性的火风光储系统低碳经济优化调度模型，并相应设计了分层递阶求解策略。最后通过算例验证了模型的有效性和适应性。结果表明：所提模型能够有效约束火电碳排放强度，提高系统运行低碳性，且能够适应不同新能源渗透率、不同气象条件下的系统运行场景。 |
| 关键词: 火风光储发电系统 火电机组调峰 碳排放强度 特殊天气 优化调度 |
| DOI：10.19783/j.cnki.pspc.240806 |
| 投稿时间：2024-06-26修订日期：2024-10-09 |
| 基金项目:南方电网科技项目资助(036000KK52222035(GDKJXM20222356)) |
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| Low-carbon economic optimal dispatch of thermal-wind-solar-storage systems considering interval differentiation of thermal power carbon emission intensity |
| XIE Pingping1,LÜ Siyu2,LIU Dexu2,LIU Yang1,LU Qiuyu1,YANG Yinguo1,ZHONG Haiwang2 |
| (1. Power Dispatching and Control Center of Guangdong Power Grid Co., Ltd., Guangzhou 510620, China;
2. Sichuan Energy Internet Research Institute, Tsinghua University, Chengdu 610213, China) |
| Abstract: |
| In the context of the shift from “dual control” of energy consumption to “dual control” of carbon emissions, existing power system dispatch optimization tends to focus on total carbon emission constraints while neglecting carbon emission intensity constraints. This often leads to higher carbon emission intensity and poorer economic performance in thermal power unit operations. This paper proposes a low-carbon economic dispatch method for heterogeneous energy power systems, considering interval differentiation of thermal power carbon emission intensity. First, the differentiation characteristics of the relationship curve between carbon emission intensity and load rate in thermal power units are analyzed. The operation intervals of thermal power are divided into low-carbon intensity, high-carbon intensity, and transition zones. Then, a low-carbon economic optimal dispatch model for thermal-wind-solar-storage system is established with the objectives of maximizing the duration of thermal power operating in low-carbon intensity, minimizing total system carbon emissions, and minimizing system operating costs. This model integrates both “dual control” of carbon emissions and economic operation, and a hierarchical and progressive solving strategy is designed accordingly. Finally, the effectiveness and adaptability of the model are verified through case studies. Results indicate that the proposed model can effectively constrain the carbon emission intensity of thermal power units, improve the low-carbon performance of the system, and adapt to the system operating scenarios with different renewable energy penetration levels and weather conditions. |
| Key words: thermal-wind-solar-storage system thermal unit load regulation carbon emission intensity extreme weather optimal dispatch |
