电工技术学报2017,Vol.32Issue(11):1-7,7.
微电网并网系统中谐波传播抑制策略
Harmonic Propagation Suppression Strategy in Grid-Connected Microgrids
摘要
Abstract
For the harmonic voltage sources on the point of common coupling(PCC)of a grid-connected microgrid,the series and parallel resonances between line inductance and capacitance may cause the serious harmonic propagation amplification.In order to damp out harmonic propagation amplification in the system,this paper proposes a novel site selection strategy of discrete frequency tuning resistive active power filter(RAPF)according to the harmonic propagation law.On the basis of the site selection strategy,the conductance gain of the discrete frequency tuning RAPF is limited with the variation of transmission line length due to its influence on the harmonic suppression performance.However long the transmission line is,the proposed site selection strategy could suppress the harmonic propagation amplification effectively by choosing the conductance gain reasonably.Simulation and experimental results validate the effectiveness of the proposed strategy.关键词
微电网并网系统/传输线/谐波传播放大/分频调节/阻性有源电力滤波器/位置选择策略Key words
Grid-connected microgrid/transmission line/harmonic propagation amplification/discrete frequency tuning/resistive active power filter/site selection strategy分类
信息技术与安全科学引用本文复制引用
孙孝峰,蔡瑶,张劲松,沈虹,王宝诚..微电网并网系统中谐波传播抑制策略[J].电工技术学报,2017,32(11):1-7,7.基金项目
国家自然科学基金项目(51407155)和河北省自然科学基金项目(E2015203407,13211907D-2)资助. (51407155)