TY - GEN
T1 - Approximate method for modeling and control of a two-stage power converter
AU - Narváez, Dante Inga
AU - De Araújo, Lucas Savoi
AU - Villalva, Marcelo Gradella
AU - De Siqueira, Thais Gama
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/7
Y1 - 2017/7/7
N2 - In this paper, it is presented a procedure to simplify the well-known average model as well as to approximate the controller design for a Pulse-Width-Modulation (PWM) based power converter that transforms energy from some DC source (such as batteries or fuel cells) into an AC voltage source. The power converter studied is formed by two stages: a DC-DC bidirectional converter (boost) and a DC-AC H-bridge converter (inverter). It is demonstrated that second-order average models of those power converters can be simplified to obtain first-order approximate models, which in turn are used with frequency analysis to design approximate controllers that perform well compared to the complete design procedure, as it is observed in the simulation tests. As a result, parameters of the controllers for the power converter are calculated directly from the specifications of the power stages and control loop constraints. Hence, this method can be used to implement adaptive controllers as well.
AB - In this paper, it is presented a procedure to simplify the well-known average model as well as to approximate the controller design for a Pulse-Width-Modulation (PWM) based power converter that transforms energy from some DC source (such as batteries or fuel cells) into an AC voltage source. The power converter studied is formed by two stages: a DC-DC bidirectional converter (boost) and a DC-AC H-bridge converter (inverter). It is demonstrated that second-order average models of those power converters can be simplified to obtain first-order approximate models, which in turn are used with frequency analysis to design approximate controllers that perform well compared to the complete design procedure, as it is observed in the simulation tests. As a result, parameters of the controllers for the power converter are calculated directly from the specifications of the power stages and control loop constraints. Hence, this method can be used to implement adaptive controllers as well.
KW - Approximate controller design
KW - Approximate modeling
KW - Power converter
UR - http://www.scopus.com/inward/record.url?scp=85027874028&partnerID=8YFLogxK
U2 - 10.1109/PEDG.2017.7972512
DO - 10.1109/PEDG.2017.7972512
M3 - Conference contribution
AN - SCOPUS:85027874028
T3 - 2017 IEEE 8th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2017
BT - 2017 IEEE 8th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2017
Y2 - 17 April 2017 through 20 April 2017
ER -