| 引用本文: | 李博,刘正富,江健健,陈沐阳,蔡啸,张宁.考虑尾流效应的海上风电宽频振荡稳定特性聚合分析方法[J].电力自动化设备,2025,45(12):118-126. |
| LI Bo,LIU Zhengfu,JIANG Jianjian,CHEN Muyang,CAI Xiao,ZHANG Ning.Aggregation analysis method for wide-band oscillation stability characteristics of offshore wind power considering wake effect[J].Electric Power Automation Equipment,2025,45(12):118-126. |
|
| 摘要: |
| 随着海上风电场规模扩大化、结构复杂化，其内部尾流效应导致机组运行工况差异显著，传统单机等效建模方法难以准确评估系统宽频振荡稳定性。针对这一问题，提出一种考虑尾流效应的海上风电宽频振荡稳定特性聚合分析方法。通过构建系统的等效阻抗来描述系统的振荡特性，并将复杂的多机组工况映射至并网点潮流空间，实现仅依赖场站的总有功出力、总无功出力即可判别系统的稳定性。基于某实际海上风电场的算例分析结果表明，所提方法不仅能揭示不同场内无功电压控制策略对稳定性的关键影响，且相较于传统单机等效建模方法，其评估的稳定域比更加精确。将所提方法应用于机组组合优化，可将满足振荡稳定约束的调度方案比例从55.2% 提升至100%，验证了所提方法在提升评估准确性与优化结果安全性方面的工程实用性。 |
| 关键词: 海上风电 宽频振荡 尾流效应 阻抗建模 机组组合 |
| DOI：10.16081/j.epae.202510028 |
| 分类号:P752;TM614 |
| 基金项目:中国南方电网有限责任公司科技项目(030000KC23070012(GDKJXM20230795)) |
|
| Aggregation analysis method for wide-band oscillation stability characteristics of offshore wind power considering wake effect |
|
LI Bo1, LIU Zhengfu1, JIANG Jianjian1, CHEN Muyang2, CAI Xiao2, ZHANG Ning2
|
|
1.Guangdong Power Grid Co.,Ltd.,Guangzhou 510399, China;2.Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
|
| Abstract: |
| With the expansion of offshore wind farms and the complexity of their structure, the internal wake effect leads to significant differences in the operation conditions of wind turbines. The traditional single-machine equivalent modeling method is difficult to accurately assess the wide-band oscillation stability of the system. To address this issue, an aggregation analysis method for wide-band oscillation stability characteristics of offshore wind power considering wake effect is proposed. The oscillation characteristics of the system are described by constructing the equivalent impedance of the system, and the complex multi-machine operation conditions are mapped to the power flow space at the point of common coupling, so that the stability of the system can be determined only by the total active power output and total reactive power output of the farm. Case study results for an actual offshore wind farm show that the proposed method can not only reveal the key influence of different reactive power and voltage control strategies within the farm on the stability, but also provide a more accurate assessment on the stability region compared with the traditional single-machine equivalent modeling method. When the proposed method is applied to the unit commitment optimization, the proportion of scheduling schemes that meet the oscillation stability constraints is increased from 55.2% to 100%,verifying the engineering practicability of the proposed method in improving the accuracy of assessment and the safety of optimization results. |
| Key words: offshore wind power wide-band oscillation wake effect impedance modeling unit commitment |
