Harmonics Measurement Errors in Grids with High Presence of Power Electronics Converters
The article presents field results and discusses the harmonic measurement errors of power quality analyzers (PQA) due to sampling aliasing of currents and voltages in grids with the presence of power electronics converters (PEC). The PQA may imply non-existing harmonic components incorrectly dependi...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Eletrônica de Potência
2024-10-01
|
| Series: | Eletrônica de Potência |
| Subjects: | |
| Online Access: | https://journal.sobraep.org.br/index.php/rep/article/view/960 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The article presents field results and discusses the harmonic measurement errors of power quality analyzers (PQA) due to sampling aliasing of currents and voltages in grids with the presence of power electronics converters (PEC). The PQA may imply non-existing harmonic components incorrectly depending on the sampling rate of the PQA and the switching frequency of the PEC. Such phenomenon is prone to become more common and unpredictable due to the amplification of high-frequency components in voltages and currents due to interactions between PEC, loads, and grid elements. The conclusion is that PQAs, as required by standards in use currently, are not prepared to identify and quantify, when necessary and correctly, the high-frequency components that are present in modern electric networks with multiple PECs. |
|---|---|
| ISSN: | 1414-8862 1984-557X |