### Abstrakt

Traditionally, when designing an LCL-filter, a three-phase inverter is simplified as a single-phase inverter for analysis and the output phase voltage is used to calculate the inverter-side current harmonics and to design inverter-side inductor. However, for a three-phase three-wire grid-tied system, the output current harmonics of inverter are directly affected by the output line to line voltage. Hence, this paper proposes a new method to analyze the inverter output current harmonics by using the equivalent phase voltage of the three phase inverter. Based on this, a step by step design method of the high order power filter is introduced. Simulations are carried out to verify the accuracy and the validity of the proposed methods through a 6 kW, 380V/50 Hz grid-connected inverter model with three different types of high order power filters.

Originalsprog | Engelsk |
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Titel | Proceedings of the 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2013 |

Antal sider | 8 |

Forlag | IEEE Press |

Publikationsdato | 2013 |

Sider | 1-8 |

ISBN (Trykt) | 978-1-4799-0692-5 |

DOI | |

Status | Udgivet - 2013 |

Begivenhed | 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2013 - Rogers, Arkansas, USA Varighed: 8 jul. 2013 → 11 jul. 2013 |

### Konference

Konference | 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2013 |
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Land | USA |

By | Rogers, Arkansas |

Periode | 08/07/2013 → 11/07/2013 |

### Emneord

- LLCL-filter
- LCL-filter
- Current harmonics
- Voltage harmonics
- Equivalent phase voltage
- Design procedure
- Three-phase grid-tied inverter
- SPWM

## Fingeraftryk Dyk ned i forskningsemnerne om 'Step by Step Design of a High Order Power Filter for Three-Phase Three-Wire Grid-connected Inverter in Renewable Energy System'. Sammen danner de et unikt fingeraftryk.

## Citationsformater

Huang, M., Blaabjerg, F., Yang, Y., & Wu, W. (2013). Step by Step Design of a High Order Power Filter for Three-Phase Three-Wire Grid-connected Inverter in Renewable Energy System. I

*Proceedings of the 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2013*(s. 1-8). IEEE Press. https://doi.org/10.1109/PEDG.2013.6785603