Distributionally Robust Optimal Dispatching of Integrated Energy System Considering Power-to-Ammonia and Flexible Coal-fired Generation

ZHENG Xiaogang; HE Tongxiang; LIU Weiliang; HAO Yafeng; LI Zhi; LIU Changliang; LIU Shuai; XU Jiahao; WANG Xin

doi:10.19805/j.cnki.jcspe.2026.250084

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Distributionally Robust Optimal Dispatching of Integrated Energy System Considering Power-to-Ammonia and Flexible Coal-fired Generation

更新时间：2026-06-11

- Distributionally Robust Optimal Dispatching of Integrated Energy System Considering Power-to-Ammonia and Flexible Coal-fired Generation
- Chinese Journal of Power Engineering Vol. 46, Issue 6, Pages: 188-202(2026)
- 作者机构：
  
  1. 华北电力大学控制与计算机工程学院,河北,保定,071000
  2. 保定市综合能源系统状态检测与优化调控重点实验室,河北,保定,071000
  3. 国家能源集团新能源技术研究院有限公司,北京,102209
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2026.250084
  CLC： TM73
- Published：2026
- 稿件说明：
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郑晓刚, 何同祥, 刘卫亮, 郝亚峰, 李智, 刘长良, 刘帅, 徐家豪, 王昕. 计及电转氨和燃煤机组灵活运行的综合能源系统分布鲁棒优化调度[J]. 动力工程学报, 2026, 46(6): 188-202.
郑晓刚, 何同祥, 刘卫亮, 郝亚峰, 李智, 刘长良, 刘帅, 徐家豪, 王昕. 计及电转氨和燃煤机组灵活运行的综合能源系统分布鲁棒优化调度[J]. 动力工程学报, 2026, 46(6): 188-202. DOI： 10.19805/j.cnki.jcspe.2026.250084.

DOI： 10.19805/j.cnki.jcspe.2026.250084

摘要

为提升综合能源系统的可再生能源消纳能力

降低碳排放水平

提出一种计及电转氨和燃煤机组灵活运行的综合能源系统分布鲁棒优化调度策略。首先

建立考虑电解槽和合成氨装置动态工作特性的电转氨两阶段模型

结合火电机组掺氨燃烧运行实现绿电-绿氨-绿电的能量转换。其次

针对燃煤机组运行灵活性不足的问题:一是利用电制氢过程产生的氧气供给富氧燃煤机组使用

建立富氧燃煤机组的灵活调节模型

进而构建包含电解槽、合成氨、掺氨煤电和富氧燃煤机组的氨-氧双循环机制;二是将热电联产机组、储热装置和电锅炉联合运行

解耦其"以热定电"约束。然后

顾及风光出力不确定性

以在最恶劣场景概率分布下综合能源系统运行成本最低为目标构建分布鲁棒优化调度模型

并采用列和约束生成算法对模型进行迭代求解。最后

在算例仿真中

设置不同运行场景进行对比分析

验证了所提策略能够有效降低系统运行成本、促进风光消纳和减少碳排放。

Abstract

A distributionally robust optimization method was proposed for integrated energy systems with power-to-ammonia conversion and flexible coal-fired unit operation to enhance renewable accommodation and reduce carbon emissions. A two-stage power-to-ammonia model was developed considering dynamic response characteristics of electrolyzers and ammonia synthesis units

enabling green power-ammonia-power conversion via ammonia co-firing in thermal plants. To address the operational inflexibility of coal-fired units: (1) the oxygen by-product from water electrolysis was supplied to oxygen-enriched combustion systems

a flexible regulation model was established

forming an ammonia-oxygen dual-cycle mechanism comprising electrolyzers

ammonia synthesis

ammonia-blended coal-fired generation

and oxygen-enriched combustion; (2) cogeneration units

thermal storage

and electric boilers were coordinated to decouple the heat-electricity constraint in coal-fire plants. Accounting for wind and solar uncertainty

a distributionally robust optimization model was formulated to minimize operation costs under the worst-case probability distribution within an ambiguity set

and solved iteratively via the column-and-constraint generation algorithm. Comparative case studies demonstrate that the proposed strategy effectively reduces operating costs

promotes renewable energy utilization

and mitigates carbon emissions.

关键词

Keywords

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