Technical gazette, Vol. 23 No. 1, 2016.
Original scientific paper
https://doi.org/10.17559/TV-20160108191624
Application of synchronous grid-connected controller in the wind-solar-storage micro grid
Hua Li
; School of Electric Power College, Inner Mongolia University of Technology, The 9th floor, unit 2, room 1102 of New District Hailar East Road, Hutiejiayuan, Inner Mongolia Hohhot, China; Zip code: 010051
Yongfeng Ren
; School of Electric Power College, Inner Mongolia University of Technology, The 9th floor, unit 2, room 1102 of New District Hailar East Road, Hutiejiayuan, Inner Mongolia Hohhot, China; Zip code: 010051
Le Li
; Guodian united power technology company LTD / School of Electric Power College, Inner Mongolia University of Technology, The 9th floor, unit 2, room 1102 of New District Hailar East Road, Hutiejiayuan, Inner Mongolia Hohhot, China; Zip code: 010051
Zhenpeng Luo
; School of Electric Power College, Inner Mongolia University of Technology, The 9th floor, unit 2, room 1102 of New District Hailar East Road, Hutiejiayuan, Inner Mongolia Hohhot, China; Zip code: 010051
Abstract
Recently, there has been an increasing interest in using distributed generators (DG) not only to inject power into the grid, but also to enhance the power quality. In this study, a space voltage pulse width modulation (SVPWM) control method is proposed for a synchronous grid-connected controller in a wind-solar-storage micro grid. This method is based on the appropriate topology of the synchronous controller. The wind-solar-storage micro grid is controlled to reconnect to the grid synchronously while maintance or repair is being completed to the power source equation DG at some point, the voltage difference that exists between DG and both sides of the node, a large and sudden electrical surge when DG is reconnected to the grid. It also affects the normal work of the other DG and power quality of a necessary load, and could even seriously paralyze the whole system. So, the topological structure and control method of the synchronous grid-connected controller are discussed in detail and simulation results are presented. The results demonstrate the effectiveness of the proposed method in the synchronous grid-connected controller for the wind-solar-storage micro grid.
Keywords
distributed generator (DG); micro grid; SVPWM; synchronous grid-connected controller
Hrčak ID:
153165
URI
Publication date:
19.2.2016.
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