| 引用本文: | 杨 义,高亦恒,王 灿,等.基于状态转移模型的综合能源系统日前优化调度方法[J].电力系统保护与控制,2025,53(23):25-37.[点击复制] |
| YANG Yi,GAO Yiheng,WANG Can,et al.Day-ahead optimal scheduling method for integrated energy systems based on state transition model[J].Power System Protection and Control,2025,53(23):25-37[点击复制] |
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| 摘要: |
| 综合能源系统(integrated energy system, IES)中多能源的相互转化与耦合使得其运行状态复杂多变，亟需建立一个能够精准描述IES运行状态及状态转移逻辑的模型，从而为IES优化调度提供精准的参考。而传统针对IES的建模方法多从输入-输出关系进行描述，难以清晰描述IES在不同运行阶段的运行状态及不同状态间的转移过程。为此，提出了一种基于混合自动机(hybrid automatic, HA)的IES状态转移建模方法。首先对IES的运行状态及其转移条件进行精细化描述，并基于HA建立了IES的状态转移模型。其次，以IES日运行成本最低为目标，给出了确定IES初始状态转移路径的方法。最后通过对IES的状态转移模型进行成本分析，提出了一种求解IES日前最优状态转移路径的方法。算例结果表明，相比于传统建模方法，所提方法不但能保证解的最优性，而且具有较短的求解时间，同时在面对新能源快速波动时能降低设备出力和联络线功率波动，有利于设备的可靠控制及系统的稳定运行。 |
| 关键词: 综合能源系统 混合自动机 状态转移模型 日运行成本 状态转移路径 |
| DOI：10.19783/j.cnki.pspc.241607 |
| 投稿时间：2024-12-03修订日期：2025-02-28 |
| 基金项目:湖北省教育厅青年人才计划项目资助(Q20231208)；国家自然科学基金项目资助(52107108) |
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| Day-ahead optimal scheduling method for integrated energy systems based on state transition model |
| YANG Yi1,2,GAO Yiheng1,WANG Can1,2,YANG Nan1,2,MA Hui1,WANG Zili3 |
| (1. College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China; 2. Hubei Provincial
Key Laboratory for Operation and Control of Cascaded Hydropower Station (China Three Gorges University), Yichang 443002,
China; 3. School of Electrical and Information Engineering, Hunan University, Changsha 410000, China) |
| Abstract: |
| The interconversion and coupling of multiple energy sources in integrated energy systems (IES) lead to highly complex and variable operating states. Therefore, it is essential to establish a model capable of accurately describing the operating states and transition logic of IES, providing precise references for optimal scheduling. However, traditional IES modeling methods primarily focus on input-output relationships, which makes it difficult to clearly describe the operating states and state transition process in different stages. To address this issue, this paper proposes a state transition modeling method for IES based on hybrid automatic (HA). First, the operating states of the IES and their transition conditions are described in detail, and a state transition model of the IES is established based on HA. Second, a method to determine the initial state transition path of the IES is developed with the objective of minimizing the daily operation cost of the IES. Finally, a method to solve the day-ahead optimal state transition path of the IES is proposed through cost analysis of the state transition model. Numerical simulations show that compared with traditional modeling methods, the proposed method not only ensures the optimality of the solution but also significantly reduces computation time. Moreover, it mitigates fluctuations in equipment output and interconnection line power under rapid renewable energy variations, thereby enhancing equipment reliability and overall system stability. |
| Key words: integrated energy system hybrid automatic state transition model daily operation cost state transition path |
