LCL-Filter Design for Low-Voltage High-Power Grid-Tied Voltage-Source Converter Considering Various Damping Methods

Date

2016-06-30

Author

Kantar, Emre
Hava, Ahmet Masum

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The limited switching frequency, size and weight concerns, and the stringent limits for the injected grid current harmonics challenge the implementation of LCL grid filters for low-voltage multi-megawatt (multi-MW) renewable energy converters. Traditional design procedures of such filters employed in low power and high switching frequency converters may not hold for a multi-MW filter interfacing a low-voltage converter switching at low frequency to the electric grid. This paper proposes an LCL-filter design algorithm spanning a wide power range of multi-MW converters where impacts of favored current control method, damping method and pulse-width modulation (PWM) technique are reflected within the design phase. Filter design algorithm was tested under 0.5, 1, and 2-MVA applications. The impacts of designated damping and current control methods were elaborated in terms of dynamic and steady-state performance using 1-MVA converter design case.

Subject Keywords

Resonant frequency, Power quality, Power harmonic filters, PWM, Design, LCL-filter, Damping

URI

https://hdl.handle.net/11511/54109

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

E. Kantar and A. M. Hava, “LCL-Filter Design for Low-Voltage High-Power Grid-Tied Voltage-Source Converter Considering Various Damping Methods,” 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54109.