TY - GEN
T1 - Control of a three phase boost rectifier under unbalanced grid conditions without grid voltage sensors
AU - Mukherjee, Subhajyoti
AU - Chowdhury, Vikram Roy
AU - Kimball, Jonathan
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12/3
Y1 - 2018/12/3
N2 - This paper presents a method for estimating the positive and negative sequence grid voltage under unbalanced grid conditions using simple algebraic and trigonometric identities without dedicated grid voltage sensors in three phase grid connected boost rectifier converter system. The estimated voltages are then used to control the positive and negative sequence currents of the boost rectifier. The estimation method is based on the positive and negative sequence active and reactive power delivered by the converter to the grid. In addition to the estimation of the positive and negative sequence grid voltage, the proposed method also generates an estimate of the frequency information of the grid similar to a conventional PLL structure. Detailed theory and results confirm the feasibility of the proposed scheme.
AB - This paper presents a method for estimating the positive and negative sequence grid voltage under unbalanced grid conditions using simple algebraic and trigonometric identities without dedicated grid voltage sensors in three phase grid connected boost rectifier converter system. The estimated voltages are then used to control the positive and negative sequence currents of the boost rectifier. The estimation method is based on the positive and negative sequence active and reactive power delivered by the converter to the grid. In addition to the estimation of the positive and negative sequence grid voltage, the proposed method also generates an estimate of the frequency information of the grid similar to a conventional PLL structure. Detailed theory and results confirm the feasibility of the proposed scheme.
KW - Grid connected converter
KW - Grid unbalance
KW - Positive and negative sequence
KW - Voltage estimation
UR - http://www.scopus.com/inward/record.url?scp=85060280699&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2018.8558236
DO - 10.1109/ECCE.2018.8558236
M3 - Conference contribution
AN - SCOPUS:85060280699
T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
SP - 1521
EP - 1527
BT - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Y2 - 23 September 2018 through 27 September 2018
ER -