| 引用本文: | 王佳旭,苗世洪,王廷涛,等.考虑风电爬坡限幅及频率安全约束的高比例风电电力系统多层级优化调度[J].电力系统保护与控制,2025,53(1):135-146.[点击复制] |
| WANG Jiaxu,MIAO Shihong,WANG Tingtao,et al.Multi-level optimal dispatch strategy for a high proportion of wind power system considering the wind power ramping limit and frequency security constraints[J].Power System Protection and Control,2025,53(1):135-146[点击复制] |
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| 摘要: |
| 近年来，具有强不确定性、弱支撑能力的风电机组大规模并网，对新型电力系统的频率安全及稳定运行造成了严重冲击。为保障高比例风电电力系统安全、优质、经济运行，提出了一种考虑风电爬坡限幅与频率安全约束的电力系统多层级优化调度策略。首先，考虑风电预测误差与风电场并网要求，对相邻调度时段风电爬坡进行几何描述与特征分析。其次，提出日前-日内-实时多阶段风电场站-电力系统级联合调度架构，进一步建立考虑风电爬坡限幅约束的场站级优化调度模型与计及频率安全约束的系统级优化调度模型。最后，基于改进IEEE 39节点系统开展算例分析，验证了所提策略的有效性。 |
| 关键词: 风电爬坡限幅约束 频率安全约束 优化调度 储能电站 高比例风电 调频 |
| DOI：10.19783/j.cnki.pspc.240489 |
| 投稿时间：2024-04-22修订日期：2024-07-15 |
| 基金项目:国家电网有限公司总部管理科技项目资助(5419- 202199551A-0-5-ZN) |
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| Multi-level optimal dispatch strategy for a high proportion of wind power system considering the wind power ramping limit and frequency security constraints |
| WANG Jiaxu,MIAO Shihong,WANG Tingtao,YAO Fuxing,TAN Haoyu,CHEN Chiyao |
| (State Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering,
Huazhong University of Science and Technology, Wuhan 430074, China) |
| Abstract: |
| In recent years, the large-scale integration of wind turbines featuring a strong uncertainty and weak supporting capability has posed a threat to the frequency security and stable operation of the new power system. To ensure the safe, high quality and economical operation of high proportion of wind power system, this paper proposes a multi-level optimal dispatch strategy considering the wind power ramping limit and frequency security constraints. First, considering the wind power prediction error and the requirements of wind farm grid-connection, the geometric description and characteristic analysis of wind power ramping in adjacent scheduling periods are carried out. Secondly, a station and system level joint dispatch structure considering day-ahead/intra-day/real-time multi-stage is proposed. A wind power station dispatch model considering wind power ramping limit constraint and a power system optimal dispatch model considering frequency security constraint are established. Finally, an example analysis is carried out based on the improved IEEE 39-bus system to verify the effectiveness of the proposed strategy. |
| Key words: wind power ramping limit constraint frequency security constraint optimal dispatch energy storage power station high proportion wind power frequency control |
