摘要
超高次谐波是电力系统电力电子化过程中产生的电能质量问题。从超高次谐波的产生机理、传播机制、交互影响、危害、发射水平、测量与标准化等角度进行剖析。分析了电动汽车充电装置、光伏逆变器、照明装置等常见超高次谐波源及其发射特点;从谐振放大和设备异常两层面分析了超高次谐波对系统、设备和电力载波通信的影响;将超高次谐波划分为原生发射和次生发射,提出几种估计超高次谐波贡献度的思路;并对现有超高次谐波测量、分析方法和标准等进行了比较,指出未来的研究方向。
Supraharmonics are a new power quality issue in process of rapid development of power electronic technology. This paper discusses the phenomenon from various aspects, including its generation and transmission mechanism, interaction, adverse effects, emission, measurement and standardization. This paper summarizes several kinds of common supraharmonic sources and their emission frequency bands, such as electric vehicle charging devices, photovoltaic inverters and lighting devices. Based on two aspects, i.e. resonance amplification and equipment malfunction, adverse effects of supraharmonics on system, equipment and power-line communication are analyzed. According to definition of primary and secondary emissions of supraharmonics, estimation methods of supraharmonic contribution are proposed. This paper summaries and compares existing analysis methods, measurement methods and related standards of supraharmonics, and puts forward research filed and direction in future.
出处
《电网技术》
EI
CSCD
北大核心
2018年第2期353-365,共13页
Power System Technology
基金
四川省科技厅:非线性负荷谐波责任划分国际合作(2017HH0081)~~
关键词
超高次谐波
超高次谐波源
原生发射
次生发射
测量方法
标准
supraharmonics
supraharmonic sources
primary emission
secondary emission
measurement methods
standards
