TY - GEN
T1 - Control of a 7-levels PUC based three phase inverter through vector current control and hybrid modulation
AU - Onizuka, Marcela Yumi Vilalba
AU - Garcia, Raymundo Cordeiro
AU - Pinto, Joäo Onofre Pereira
AU - Da Silva, Luiz Eduardo Borges
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/12/21
Y1 - 2016/12/21
N2 - This paper describes the application of current vector control and hybrid modulation in the control of a three-phase multilevel inverter based on 7-level Packed-U-cell (PUC). The PUC in each phase has an isolated DC source and a capacitor which acts as a second voltage source. A closed-loop load current control is necessary to set the capacitor voltage. However, the control of the capacitor voltages is difficult due to the load currents are sinusoidal waveforms. The approach proposed in this paper is similar to the current vector control strategy used in three-phase motors. Park transformation is used to represent the currents in a dq reference system, making easier the control of the load currents. Additionally, it is proposed a multilevel modulation applied to PUC which is based on hybrid modulation (HPWM). This modulation strategy produces less harmonic distortion than a conventional multilevel sinusoidal modulation. Results show that the proposed vector control strategy applied to PUC allows a better control of the PUC capacitor voltages, while the load currents have less harmonic distortion.
AB - This paper describes the application of current vector control and hybrid modulation in the control of a three-phase multilevel inverter based on 7-level Packed-U-cell (PUC). The PUC in each phase has an isolated DC source and a capacitor which acts as a second voltage source. A closed-loop load current control is necessary to set the capacitor voltage. However, the control of the capacitor voltages is difficult due to the load currents are sinusoidal waveforms. The approach proposed in this paper is similar to the current vector control strategy used in three-phase motors. Park transformation is used to represent the currents in a dq reference system, making easier the control of the load currents. Additionally, it is proposed a multilevel modulation applied to PUC which is based on hybrid modulation (HPWM). This modulation strategy produces less harmonic distortion than a conventional multilevel sinusoidal modulation. Results show that the proposed vector control strategy applied to PUC allows a better control of the PUC capacitor voltages, while the load currents have less harmonic distortion.
KW - Hybrid modulation
KW - Multilevel inverter
KW - PUC
KW - Vector control
UR - https://www.scopus.com/pages/publications/85010031180
U2 - 10.1109/IECON.2016.7793171
DO - 10.1109/IECON.2016.7793171
M3 - Conference contribution
AN - SCOPUS:85010031180
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 6488
EP - 6493
BT - Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society
PB - IEEE Computer Society
T2 - 42nd Conference of the Industrial Electronics Society, IECON 2016
Y2 - 24 October 2016 through 27 October 2016
ER -