【摘要】 随着超超临界燃煤机组向高参数、智能化方向快速发展，电动执行机构的高性能与高可靠性需求日益凸显。聚焦超超临界燃煤机组运行与维护场景，系统分析电动执行机构的结构特性、运行机制及其在关键调控环节的应用现状。阐述了国内外主流品牌在控制技术与智能服务领域的差异化特征。针对远程运维技术兼容性不足、故障诊断智能化水平有限等问题，详细对比分析了低功耗通信、数据采集与监控、故障诊断、健康评估、故障预测和云平台等关键技术。进一步展望了低功耗高速现场通信优化、多源通信协议池、预测性维护和全生命周期云服务等技术方向，为构建智能维护体系提供参考。更多还原

【Abstract】 With the rapid advancement of ultra-supercritical coal-fired units toward higher parameters and intelligent operation, the demand for high-performance and highly reliable electric actuators has become increasingly prominent.Focusing on the operational and maintenance scenarios of ultra-supercritical coal-fired units, the structural characteristics, operational mechanisms, and current application status of electric actuators in critical control processes are systematically analyzed.The differentiated features of leading domestic and international brands in control technology and intelligent service domains are elucidated.In response to issues such as insufficient compatibility in remote operation and maintenance technologies and limited intelligence in fault diagnosis, etc.,a detailed comparative analysis of key technologies, including low-power communication, data acquisition and monitoring, fault diagnosis, health assessment, fault prediction, and cloud platforms, etc.,is conducted.Technology directions such as optimizing low-power high-speed field communication, multi-source communication protocol pools, predictive maintenance, and full-lifecycle cloud services, etc., are further explored, which providing reference for the establishment of an intelligent maintenance system.更多还原