Reference Grid Impedance for Tests of Grid-connected Power Converters for Distributed Energy Resources: The Brazilian Case

被引：0

作者：

Saccol, Gabriel Avila ^{[1
]}

Schardong, Charles ^{[1
]}

Michels, Leandro ^{[1
]}

Bellinaso, Lucas Vizzotto ^{[1
]}

Rech, Cassiano ^{[1
]}

机构：

[1] Fed Univ Santa Maria UFSM, Power Elect & Control Res Grp GEPOC, Santa Maria, RS, Brazil

来源：

2019 IEEE 15TH BRAZILIAN POWER ELECTRONICS CONFERENCE AND 5TH IEEE SOUTHERN POWER ELECTRONICS CONFERENCE (COBEP/SPEC) | 2019年

关键词：

Brazilian standard; photovoltaic grid-connected inverter; flicker; reference impedance;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The Brazilian standard ABNT NBR 16149 defines the tests and procedures for the connection of photovoltaic inverters to the low voltage electrical grid. According to the ABNT NBR 16149, the flicker tests must be performed based on the international standards IEC 61000-3-3, IEC 61000-311 and IEC 61000-3-5, wich define a reference impedance for the equipment connection to the low voltage grid. However, the Brazilian grid presents different voltage levels and transformer configurations, so that the reference impedance defined in the international standards are not always compatible with the Brazilian systems. In this sense, this paper proposes a new classification for the inverters, according to the voltage levels and characteristics of the grid. A new reference impedance is also proposed and simulation results are included to demonstrate the impact of this choice for the operation and tests of grid connected inverters.

引用

页数：6

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