摘要
针对我国推广分布式光伏发电面临诸如成本高、设备利用率低、功能单一、认知度低等因素,同时为促进分布式光伏发电系统的推广应用,在深入对比分析分布式光伏系统、有源滤波装置和后备式不间断电源(uninterrupted power supply,UPS)原理的基础上,提出对分布式光伏系统进行功能拓展。设计一种可同时进行光伏发电和有源滤波,又具有后备式UPS功能的分布式光伏发电系统。仿真和实验结果验证了所提系统和方法的可行性和正确性。
The promotion of distributed photovoltaic power generation is still facing many difficulties, in addition to the cost factor, the equipment utilization rate is low, the function is simple, and it has low awareness. To promote the popularization and application of distributed photovoltaic power generation system, in-depth comparative analysis of photovoltaic systems, active power filter and off-line UPS was conducted, functional expansion for distributed photovoltaic systems was proposed. New system configuration and control strategy proposed not only can achieve functions of APF and PV grid connected generation at the same time, but also can compensate the voltage interruption to ensure uninterrupted work for load when the power interruption occurs. Validity and feasibility of the proposed method were proved by the results of experiment and simulation.
出处
《智能电网》
2014年第8期13-19,共7页
Smart Grid
关键词
分布式光伏发电
有源电力滤波
谐波检测
瞬时无功功率理论
distributed photovoltaic power generation system
active power filter
harmonics detection
instantaneous reactive power theory
