高密度光伏接入配电网的电能质量及解决方案研究

发布时间：2018-04-25 09:48

本文选题：并网 + 电能质量　；参考：《华北电力大学》2014年硕士论文

【摘要】：在光伏发电并网运行的过程中,并网节点的电压会由于并网容量的大小而出现波动,同时由于光伏发电系统输出功率的不稳定性,也会出现光伏系统入网的电压、电流的波形畸变,从而影响电网的电能质量。本项目旨在通过分析长兴县光伏发电系统并网过程中可能出现的各种电能质量问题。本项目以波路梦食品有限公司和振龙电源有限公司所安装的屋顶光伏发电为例,通过分析该厂所产用的光伏系统相关硬件的若干性能,研究各类设备的特性如光伏电池的U-I、P-I特性,最大功率跟踪方法,并网逆变器的主要控制策略等,最终通过仿真建模对并网过程中出现的电能质量问题进行了验证。
[Abstract]:In the process of grid connected PV power generation, the voltage of the grid connected nodes will fluctuate due to the size of the grid connected capacity. At the same time, due to the instability of the output power of the photovoltaic power generation system, the voltage of the PV system and the waveform distortion of the current will be distorted, which will affect the power quality of the power grid. This project aims to analyze Changxing County through the analysis of the power quality. Various power quality problems that may arise during the grid connection of photovoltaic power generation systems.
This project is based on the example of the roof photovoltaic power generation installed by the Paolu dream Food Co., Ltd. and Zong long power Co., Ltd., by analyzing the performance of the hardware related to the photovoltaic system produced by the factory, and studying the characteristics of all kinds of devices, such as the U-I, P-I characteristics, the maximum power tracking method, and the main control strategy of the inverter. Finally, the power quality problem in grid connection process is verified by simulation modeling.

【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM615

【参考文献】