一种复杂气象条件下的海上风电场可靠性评估方法

By generating random wind speed and wave height sequences, a time-varying fault model and a dynamic maintenance opportunity model for components are constructed, solving the problem of dynamic changes in meteorological conditions in the reliability assessment of offshore wind farms and achieving a more accurate reliability assessment.

CN122413633APending Publication Date: 2026-07-17INST OF ELECTRONICS & INFORMATION ENG OF UESTC IN GUANGDONG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF ELECTRONICS & INFORMATION ENG OF UESTC IN GUANGDONG
Filing Date
2026-05-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing reliability assessment methods for offshore wind farms are insufficient to reflect the dynamic changes in the probability of failure and the maintenance and recovery process under complex weather conditions, and they also fail to adequately identify weather-related interruptions in maintenance initiation conditions and processes, leading to discrepancies between assessment results and actual conditions.

Method used

By acquiring historical meteorological data, generating random wind speed and significant wave height sequences, constructing a time-varying fault model for components, combining it with a dynamic maintenance opportunity model, and using the sequential Monte Carlo algorithm to simulate the operating status of offshore wind farms, reliability indicators are evaluated.

Benefits of technology

It can more accurately reflect the time-varying characteristics of wind turbine component failure rate and maintenance process under complex weather conditions, thus improving the rationality and engineering applicability of offshore wind farm reliability assessment.

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Abstract

本发明公开了一种复杂气象条件下的海上风电场可靠性评估方法,首先获取海上风电场运行区域的历史气象数据、风电机组关键元件可靠性参数以及维修作业参数;然后构建能够反映风速和有效波高时序变化特征的随机气象序列,并据此确定海上风电场运行出力;在此基础上,综合考虑复杂气象条件、风致疲劳损伤累积和雷击因素对塔筒、叶片等关键元件故障过程的影响,建立元件时变故障模型;进一步结合海上维修作业受天气窗限制的特点,建立考虑维修启动、维修中断和有效维修工时累计的动态维修机会模型;最后将气象时序、元件故障过程和动态维修过程统一嵌入序贯蒙特卡罗仿真框架,逐时刻模拟海上风电场运行状态演化,并计算相应可靠性指标,从而实现复杂气象条件下考虑动态维修机会的海上风电场可靠性评估。
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