Study of power system simulator based on the double DQ transformation

Author

ZhiFei Yu ; ChunHu Shi ; YiCheng Yang ; ShiBao Qian ; Bing Li

Author_Institution

Guodian Nanjing Autom., Co., Ltd., Nanjing, China

fYear

2014

fDate

23-26 Sept. 2014

Firstpage

329

Lastpage

332

Abstract

In order to test photovoltaic inverter´s LVRT performance, it is needed to design big power grid simulator. In this paper, with Tl´s floating-point DSC TMS320F28335 as processor core, dual- 3-phase bridge parallel converter system is built. Grid simulator is composed of controlled rectifier and inverter. In order to achieve an asymmetric form voltage drop, the paper handle set voltages and sampled voltage by double DO decomposition, and get the positive and negative sequence voltage. This article added 100Hz notch in the decomposition process, and achieve the given voltage and negative feedback voltage sequence separation.

Keywords

floating point arithmetic; invertors; microprocessor chips; photovoltaic power systems; power engineering computing; power grids; power system simulation; LVRT; asymmetric form voltage drop; double DO decomposition; double DQ transformation; dual- 3-phase bridge parallel converter system; floating-point DSC TMS320F28335; frequency 100 Hz; photovoltaic inverter; power grid simulator; power system simulator; processor core; Abstracts; Automation; Grounding; Testing; Double DQ transform; Grid simulator; Low voltage ride through; PV inverter simulator;

fLanguage

English

Publisher

ieee

Conference_Titel

Electricity Distribution (CICED), 2014 China International Conference on

Conference_Location

Shenzhen

Type

conf

DOI

10.1109/CICED.2014.6991721

Filename

6991721