The monopile foundation, as the main form of offshore wind turbine foundations, may be unstable owing to scouring under reciprocating currents; therefore, inspection and maintenance are needed. In contrast to manual inspection, with a real-time monitoring system, the staff can be informed of the safety condition of the wind turbine foundation in real time and maintain it immediately after a system early warning is received. According to the monopile-supported wind turbine of Jiangsu Rudong Offshore Wind Farm Demonstration Project, a blade–tower–monopile–soil coupling integrated numerical model considering scour was established in this study, and scour warning indicators and warning limits related to two aspects—dynamic characteristics and dynamic response—were obtained through calculation and analysis. For the latter, the effect of the wind speed can be excluded by considering the control system. Furthermore, according to the results of the numerical analysis, a real-time safety monitoring system for scouring around a monopile foundation was established in this study, which is composed of data acquisition, data transmission, and data application layers. An inclinometer and accelerometer were selected as sensors. Time- and frequency-domain analyses of the long-term monitoring data revealed a strong annual periodicity (particularly in the east–west direction) in the tower-bottom inclination. According to the proposed early warning indicators, a safety warning was not triggered in this wind farm, and the two early warning indicators exhibited consistent results. The proposed real-time monitoring system can be easily applied to the monitoring of the foundation scouring of other offshore wind farms.

作为海上风力发电机基础的主要形式，单桩基础可能会由于在往复流中进行冲刷而变得不稳定；因此，需要检查和维护。与手动检查相比，借助实时监控系统，可以将风力涡轮机基础的安全状况实时告知工作人员，并在收到系统预警后立即对其进行维护。根据江苏如东海上风电场示范项目的单桩支撑风力发电机组，建立了考虑冲刷的叶片-塔-单桩-土耦合综合数值模型，冲刷预警指标和预警限值与动态有关。特性和动态响应-通过计算和分析获得。对于后者，通过考虑控制系统可以排除风速的影响。此外，根据数值分析的结果，本研究建立了一个实时监测单桩基础周围安全的实时监控系统，该系统由数据采集，数据传输和数据应用层组成。选择了测斜仪和加速度计作为传感器。长期监测数据的时域和频域分析表明，塔底倾角有很强的年度周期性（尤其是东西方向）。根据建议的预警指标，该风电场未触发安全警告，并且两个预警指标显示出一致的结果。