A control architecture to coordinate DG inverters and a series-ZC-filtered hybrid active filter for power quality improvement in micro-grid

• DOI: 10.1109/eeeic.2017.7977505
• Publication Date: 2017-07-25T15:28:40Z
• Authors: Mingmin Zhang; Yong Li; Yanjian Peng; Wenguo Li; Fang Liu
• Keywords: Interfacing

In this paper, a control architecture to coordinate DG inverters and series-LC-filtered hybrid active filter (HAF) is proposed impede the current harmonics from flowing into grid simultaneously. First, main circuit topology for presented, which contains group of units, transformer interfacing micro-grid HAF. Secondly, rejection (HRC) incorporated voltage-controlled nonlinear loads. Moreover, small-capacity Series-LC-Filtered HAF connected point common coupling (PCC). The LC filtering branch designed based on reactive demand loads, can reduce capacity inverter further. Besides, potential harmonic resonance also be effectively dampened with method. Finally, detailed case study validates indicates that method suitable grid-connected micro-grid, because it decrease in both output side