风力发电机变流器失效问题与优化技术的现状与挑战

Research on the Failure Mechanism of Filtering Circuit in Wind Turbine Converter System

本文综述了风力发电机变流器失效问题的研究现状及相关改进技术。首先介绍了风力发电系统的基本原理和组成,以及变流器在其中的作用。随后分析了变流器失效的常见类型和原因,包括电气故障、热失效、振动和机械应力、环境因素、设计和制造缺陷,以及操作和维护不当等因素。针对这些失效原因,研究人员提出了一系列改进技术,包括材料与组件优化、故障检测与诊断技术、故障容忍与自愈技术等。其中,材料与组件优化旨在提高变流器的耐高温、耐湿度、耐腐蚀等性能;故障检测与诊断技术通过实时监测变流器状态,实现对内部故障的准确诊断;故障容忍与自愈技术通过智能控制策略保证系统的稳定运行。然而,改进技术仍面临高效能与高可靠性的平衡、技术集成与系统优化、新材料与新技术的应用、环境适应性与可持续发展等挑战。未来研究需注重理论与实践相结合,创新技术和智能化管理,推动风力发电机变流器技术的进一步发展,为可再生能源的可持续发展做出贡献。

This work reviews the research progress on the failure issues and improvement techniques of wind turbine converters.It begins with an overview of the basic principles and components of wind power generation systems,highlighting the role of converters.The common types and causes of converter failures are then analyzed,including electrical faults,thermal failures,vibration and mechanical stress,environmental factors,design and manufacturing defects,as well as improper operation and maintenance.To address these failure factors,researchers have proposed a variety of improvement techniques,including material and component optimization,fault detection and diagnosis technologies,fault tolerance and self-healing techniques.Material and component optimization aim to enhance the converter's performance in terms of high temperature,humidity,and corrosion resistance.Fault detection and diagnosis technologies involve real-time monitoring of converter status for accurate diagnosis of internal faults.Fault tolerance and self-healing techniques ensure system stability through intelligent control strategies.However,improvement techniques still face challenges such as balancing high efficiency with high reliability,technological integration and system optimization,application of new materials and technologies,environmental adaptability,and sustainable development.Future research should focus on integrating theory with practice,innovating technologies,and implementing intelligent management to further advance wind turbine converter technologies and contribute to the sustainable development of renewable energy.