摘 要
随着现代电力系统规模的不断扩大和用电负荷的日益复杂化，电压暂降等电能质量问题对敏感设备的正常运行造成了显著影响，因此动态电压恢复器（DVR）作为解决这一问题的有效手段受到了广泛关注本研究以提升电力系统供电质量为目标，深入探讨了动态电压恢复器的设计与应用技术，重点分析了其拓扑结构优化、控制策略改进以及实际工程中的应用效果在设计方面，提出了一种基于复合型逆变器的新型DVR拓扑结构，该结构通过引入辅助储能单元显著提高了装置的补偿能力和效率同时，针对传统控制方法响应速度慢、精度低的问题，开发了一种基于自适应模糊PID的智能控制算法，有效提升了DVR在复杂工况下的动态性能。
关键词：动态电压恢复器 复合型逆变器拓扑结构 自适应模糊PID控制算法
Abstract
As the scale of modern power systems continues to expand and electrical loads become increasingly complex, issues such as voltage sags have significantly impacted the normal operation of sensitive equipment. Therefore, dynamic voltage restorers (DVRs) have gained widespread attention as an effective solution to these problems. This study aims to improve the quality of power supply in the electrical system by delving into the design and application technologies of DVRs. It focuses on optimizing their topology, improving control strategies, and evaluating their performance in practical engineering applications. In terms of design, a new DVR topology based on a composite inverter is proposed. This structure significantly enhances the device's compensation capability and efficiency by introducing auxiliary energy storage units. Additionally, to address the slow response and low accuracy issues associated with traditional control methods, an intelligent control algorithm based on adaptive fuzzy PID has been developed, effectively enhancing the dynamic performance of DVRs under complex operating conditions.
Keyword:Dynamic Voltage Restorer Hybrid Inverter Topology Adaptive Fuzzy PID Control Algorithm
目 录
1绪论 1
1.1电力系统动态电压恢复器的研究背景 1
1.2动态电压恢复器在电力系统中的意义 1
1.3国内外动态电压恢复器研究现状分析 1
1.4本文研究动态电压恢复器的设计方法 2
2动态电压恢复器的理论基础 2
2.1动态电压恢复器的基本原理 2
2.2电力系统中电压暂降问题分析 3
2.3动态电压恢复器的关键技术指标 3
2.4动态电压恢复器的数学模型建立 3
2.5理论基础对设计的指导作用 4
3动态电压恢复器的设计实现 4
3.1动态电压恢复器硬件电路设计 4
3.2控制策略的选择与优化设计 5
3.3逆变器拓扑结构及其参数设计 5
3.4滤波器设计与谐波抑制方法 6
3.5设计方案的仿真验证与分析 6
4动态电压恢复器的应用研究 7
4.1动态电压恢复器的实际应用场景分析 7
4.2不同负载条件下的性能测试与评估 7
4.3动态电压恢复器的经济性与可行性研究 8
4.4系统集成与现场调试关键技术 8
4.5应用案例分析与改进建议 9
结论 9
参考文献 10
致谢 11
