TY - GEN
T1 - Predictive Control of Two-Stage Grid-Connected Photovoltaic Energy System with Constant Switching Frequency
AU - Dahlmann, Alexander
AU - Yaramasu, Venkata
AU - Dekka, Apparao
AU - Kouro, Samir
AU - Padmanaban, Sanjeevikumar
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9/28
Y1 - 2020/9/28
N2 - In photovoltaic energy systems, a two-stage power conversion system composed of boost converter and three-phase voltage source inverter improves the energy conversion efficiency. A novel deadbeat current control (DBCC) for the boost converter and a modulated model predictive current control (M2PCC) for the grid-side converter are proposed to obtain constant switching frequency operation. The DBCC regulates the inductor current for the maximum power point tracking, while the M2PCC controls the stationary-frame grid currents such that the grid active and reactive powers are regulated with excellent power quality. The proposed control strategies ensure less steady-state error and fast transient response under a wide dynamic range. To verify the feasibility of the proposed controls, simulation studies are conducted on a 12-kW system at different irradiance, temperature and grid reactive powers.
AB - In photovoltaic energy systems, a two-stage power conversion system composed of boost converter and three-phase voltage source inverter improves the energy conversion efficiency. A novel deadbeat current control (DBCC) for the boost converter and a modulated model predictive current control (M2PCC) for the grid-side converter are proposed to obtain constant switching frequency operation. The DBCC regulates the inductor current for the maximum power point tracking, while the M2PCC controls the stationary-frame grid currents such that the grid active and reactive powers are regulated with excellent power quality. The proposed control strategies ensure less steady-state error and fast transient response under a wide dynamic range. To verify the feasibility of the proposed controls, simulation studies are conducted on a 12-kW system at different irradiance, temperature and grid reactive powers.
KW - Boost converter
KW - deadbeat control
KW - modulated model predictive control
KW - photovoltaic energy
UR - http://www.scopus.com/inward/record.url?scp=85097552342&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85097552342&partnerID=8YFLogxK
U2 - 10.1109/PEDG48541.2020.9244445
DO - 10.1109/PEDG48541.2020.9244445
M3 - Conference contribution
AN - SCOPUS:85097552342
T3 - 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
SP - 346
EP - 351
BT - 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
Y2 - 28 September 2020 through 1 October 2020
ER -