摘 要
随着电力系统规模的不断扩大和对电能质量要求的日益提高，高压直流输电系统中的谐波问题愈发凸显，严重影响系统的稳定运行与设备安全。为此，本研究聚焦于高压直流输电系统的谐波抑制技术，旨在探索有效的谐波抑制方法以保障系统的高效稳定运行。通过理论分析、仿真建模与实验验证相结合的研究方法，深入探讨了基于新型拓扑结构与先进控制算法的谐波抑制策略。研究结果表明，采用多模块化多电平换流器结合自适应谐波补偿算法能够显著降低系统中的谐波含量，有效改善电能质量。同时，提出了一种基于深度学习的预测性维护机制，可提前识别潜在的谐波源并采取预防措施，这是本研究的重要创新点之一。此外，还建立了完整的谐波评估体系，为实际工程应用提供了可靠的参考依据。该研究成果不仅为解决高压直流输电系统中的谐波问题提供了新的思路和技术手段，而且对于推动智能电网的发展具有重要意义。
关键词：高压直流输电 谐波抑制技术 多模块化多电平换流器
Abstract
As the scale of power systems continues to expand and the requirements for power quality become increasingly stringent, harmonic issues in high-voltage direct current (HVDC) transmission systems have become more prominent, severely affecting system stability and equipment safety. This study focuses on harmonic suppression techniques in HVDC transmission systems, aiming to explore effective methods to ensure efficient and stable system operation. By integrating theoretical analysis, simulation modeling, and experimental validation, this research delves into harmonic suppression strategies based on novel topological structures and advanced control algorithms. The results indicate that the combination of multi-modular multilevel converters with adaptive harmonic compensation algorithms can significantly reduce harmonic content in the system, thereby improving power quality. Additionally, a predictive maintenance mechanism based on deep learning is proposed, which can identify potential harmonic sources in advance and implement preventive measures, representing a key innovation of this study. Furthermore, a comprehensive harmonic evaluation system has been established, providing reliable reference criteria for practical engineering applications. This research not only offers new ideas and technical means to address harmonic problems in HVDC transmission systems but also holds significant implications for the development of smart grids.
Keyword:High-Voltage Direct Current Transmission Harmonic Suppression Technology Multi-Module Multilevel Converter
目 录
引言 1
1高压直流输电系统谐波特性分析 1
1.1谐波产生机理研究 1
1.2谐波传播路径分析 2
1.3谐波对系统影响评估 2
2现有谐波抑制技术综述 3
2.1传统滤波器技术评价 3
2.2主动抑制方法探讨 3
2.3新型抑制技术进展 4
3基于控制策略的谐波抑制 4
3.1控制算法优化设计 4
3.2实时监测与反馈机制 5
3.3控制效果仿真验证 5
4工程应用中的谐波抑制实践 6
4.1实际工程案例分析 6
4.2抑制方案实施效果 6
4.3经济效益与社会效益 7
结论 7
参考文献 9
致谢 10
