TY - GEN
T1 - Indirect grid current control of LCL filter based grid-connected converter
AU - Mukherjee, Subhajyoti
AU - Shamsi, Pourya
AU - Ferdowsi, Mehdi
AU - Kimball, Jonathan
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5/24
Y1 - 2019/5/24
N2 - This paper presents a method to indirectly control the grid current of a grid connected converter interfaced with a LCL filter. The proposed method is based on estimating the fundamental and harmonic components of the current drawn by the filter capacitor. The estimated fundamental and harmonic components of the filter capacitor current are then compensated by injecting an equal amount of current from the converter side using a well-designed current controller. This indirectly ensures the grid current to be at the desired power factor and immune to any distortions in the grid voltage. The proposed estimation and control scheme is verified by experimental results.
AB - This paper presents a method to indirectly control the grid current of a grid connected converter interfaced with a LCL filter. The proposed method is based on estimating the fundamental and harmonic components of the current drawn by the filter capacitor. The estimated fundamental and harmonic components of the filter capacitor current are then compensated by injecting an equal amount of current from the converter side using a well-designed current controller. This indirectly ensures the grid current to be at the desired power factor and immune to any distortions in the grid voltage. The proposed estimation and control scheme is verified by experimental results.
KW - Grid connected converter
KW - Harmonic compensation
KW - LCL filter
KW - Sensor less control
KW - Voltage estimation
UR - http://www.scopus.com/inward/record.url?scp=85067113538&partnerID=8YFLogxK
U2 - 10.1109/APEC.2019.8721834
DO - 10.1109/APEC.2019.8721834
M3 - Conference contribution
AN - SCOPUS:85067113538
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 3024
EP - 3031
BT - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Y2 - 17 March 2019 through 21 March 2019
ER -