LCL filter design for grid-connected inverters by analytical estimation of PWM ripple voltage

Ashish Kumar Sahoo; Arushi Shahani; Kaushik Basu; Ned Mohan

doi:10.1109/APEC.2014.6803471

LCL filter design for grid-connected inverters by analytical estimation of PWM ripple voltage

Ashish Kumar Sahoo, Arushi Shahani, Kaushik Basu, Ned Mohan

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

15 Scopus citations

Abstract

LCL filter is becoming an attractive choice over conventional L filters for grid-connected voltage source inverters (VSI) due to smaller inductor size and better attenuation of the ripple components in the grid current. The modulation of the VSI generates switched voltages which results in distorted currents. In this paper, a simple closed form analytical expression is derived for the higher order switching components present in the inverter voltage. This is used in a systematic design procedure to design the LCL filter components for allowable grid current harmonics. A passive damping resistor is designed ensuring minimum power loss. The design is validated by simulations in MATLAB/Simulink and experiments on a laboratory prototype.

Original language	English (US)
Title of host publication	APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1281-1286
Number of pages	6
ISBN (Print)	9781479923250
DOIs	https://doi.org/10.1109/APEC.2014.6803471
State	Published - 2014
Event	29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014 - Fort Worth, TX, United States Duration: Mar 16 2014 → Mar 20 2014

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other	29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
Country	United States
City	Fort Worth, TX
Period	3/16/14 → 3/20/14

Keywords

Passive input filter
Space vector pulse-width modulation (SVPWM)
Total harmonic distortion (THD)
Voltage source inverter (VSI)

Access

10.1109/APEC.2014.6803471

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Cite this

Sahoo, A. K., Shahani, A., Basu, K., & Mohan, N. (2014). LCL filter design for grid-connected inverters by analytical estimation of PWM ripple voltage. In APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition (pp. 1281-1286). [6803471] (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2014.6803471

LCL filter design for grid-connected inverters by analytical estimation of PWM ripple voltage. / Sahoo, Ashish Kumar; Shahani, Arushi; Basu, Kaushik; Mohan, Ned.

APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2014. p. 1281-1286 6803471 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sahoo, AK, Shahani, A, Basu, K & Mohan, N 2014, LCL filter design for grid-connected inverters by analytical estimation of PWM ripple voltage. in APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition., 6803471, Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, Institute of Electrical and Electronics Engineers Inc., pp. 1281-1286, 29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014, Fort Worth, TX, United States, 3/16/14. https://doi.org/10.1109/APEC.2014.6803471

Sahoo AK, Shahani A, Basu K, Mohan N. LCL filter design for grid-connected inverters by analytical estimation of PWM ripple voltage. In APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc. 2014. p. 1281-1286. 6803471. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). https://doi.org/10.1109/APEC.2014.6803471

Sahoo, Ashish Kumar ; Shahani, Arushi ; Basu, Kaushik ; Mohan, Ned. / LCL filter design for grid-connected inverters by analytical estimation of PWM ripple voltage. APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 1281-1286 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

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