分布式电源谐波机理与抑制技术综述

分布式电源作为一种环境适应性强的清洁能源,具有就近利用率高、供电灵活等特点,但因其传播特征复杂,分散性强,使电网面临着新的谐波问题.首先,概述了分布式电源谐波的危害及其产生原因,指出电力电子装置是造成分布式电源谐波的重要因素之一;其次,对光伏发电系统、风力发电系统、微型燃气轮机系统和燃料电池系统4类电源产生的谐波机理进...

Review on harmonic mechanism and suppression technology of distributed generation

As a clean energy source with strong environmental adaptability, the distributed generation has the characteristics of high utilization rate of energy and flexibility of power supply. But it also brings new harmonic problems to the power grid because of its complex propagation and high dispersibility. Firstly, the dangers and the causes of distributed generation harmonic are summarized, and it is pointed out that power electronic switching device is one of the most important factors of distributed generation harmonic damage. Secondly, the harmonic mechanisms of photovoltaic power generation, wind power generation, micro-gas turbine and fuel cell are summed up, and the main influence factors of generated harmonics of the different generation forms are analyzed. Then, the harmonic suppression technologies of four types of power supply are carded, and the problems in suppression technology research and application are pointed out. Finally, the research direction of harmonic suppression technology in the future are prospected, which provides a reference for studying the harmonic suppression technology of distributed generation and reducing the harm from power harmonic.