电力系统及其自动化学报2016,Vol.28Issue(8):1-6,6.DOI:10.3969/j.issn.1003-8930.2016.08.001
逆变型分布式电源的公共连接点电压调整方法
Regulated Method of PCC Voltage for Inverter Interfaced Distributed Generator
摘要
Abstract
In this paper,in order to improve the effect of inverter interfaced distributed generator(IIDG)regulated volt-age at the point of common coupling(PCC),the relationship between the reactive power and the voltage from/to the grid-connected inverter is analysed. By applying instantaneous power theory under three-phase balanced and unbal-anced grid voltage,and combining the fuzzy control of power and the positive and negative sequence double indepen-dent current loop control of the reference currents,a PCC voltage regulated method based on control is proposed. The control method can effectively regulate the voltage of PCC under both normal voltage and voltage sag ,and it can reduce the imbalance of the system under unbalanced voltage sag. The simulation result verifies the effectiveness and the self-adaptability of voltage regulation of the proposed control method.关键词
并网逆变器/公共连接点/电压调整/正负序电流控制/模糊控制Key words
grid-connected inverter/point of common coupling/voltage regulation/positive and negative sequence cur-rent control/fuzzy control分类
信息技术与安全科学引用本文复制引用
陶维青,陆鼎堃,丁明,夏熠,鲁胜清,杨刚..逆变型分布式电源的公共连接点电压调整方法[J].电力系统及其自动化学报,2016,28(8):1-6,6.基金项目
国家高技术研究发展计划(863计划)资助项目(2011AA05A107) (863计划)