Research and practice on power quality control technology for electric vehicle charging piles
电动汽车充电桩电能质量控制技术的研究与实践

摘要

电动汽车充电桩的普及对电能质量提出了新的挑战，主要体现在电压波动、谐波干扰等方面。本论文旨在探讨电动汽车充电桩电能质量控制技术的研究与实践，通过分析现有充电桩对电网的影响，提出一系列优化方案以提升电能质量。研究首先概述了充电桩影响电能质量的关键因素，接着详细讨论了几种有效的控制策略和技术手段，包括主动滤波技术、无功补偿以及智能调控系统等，并结合实际案例进行验证。合理应用这些技术可以显著改善充电桩接入电网后的电能质量，为电动汽车的可持续发展提供有力支持。

Abstract

The popularization of electric vehicle charging piles poses new challenges to power quality, mainly in terms of voltage fluctuations and harmonic interference. This thesis aims to explore the research and practice of power quality control technology for electric vehicle charging piles. By analyzing the impact of existing charging piles on the power grid, a series of optimization schemes are proposed to improve power quality. The research first outlines the key factors affecting the power quality of charging piles. Then, it discusses in detail several effective control strategies and technical means, including active filtering technology, reactive power compensation, and intelligent control systems, and verifies them with practical cases. The rational application of these technologies can significantly improve the power quality after the charging piles are connected to the power grid, providing strong support for the sustainable development of electric vehicles.