TY - GEN
T1 - A grid-tied power factor corrector microinverter without electrolytic capacitor by the control of voltage in a DC-link for a non-linear load
AU - Moreno, Frank A.
AU - Paucara, Jhonatan D.
AU - Prez, C. Gustavo
AU - Sotomayor, Javier J.
AU - Sal Rosas, Damian E.Y.
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/11/14
Y1 - 2017/11/14
N2 - A novel control strategy is proposed for a bidirectional multiport single phase two stage microinverter without electrolytic capacitor. The application of this converter is for power factor correction under non-linear grid tied load. The converter is composed of a triple active bridge series-resonant DC/DC converter cascaded with a voltage source inverter where a film capacitor is used in the DC-Link. Power decoupling is obtained due to a high ripple low frequency voltage in the DC-Link. The proposed controller has three cascaded loops to control the DC-Link average voltage, the instantaneous grid current and the point of common coupling voltage respectively. This strategy allows having a high speed steady-state response, good stability, low harmonic distortion in the grid, bidirectional power flow and low computational cost unlike other controllers. Two different cases have been tested, the first one when only the grid delivers power to the non-linear load, and the second one when the power flow is shared between the grid and any other DC source (renewable source or battery). Simulation results validate the controller functionality.
AB - A novel control strategy is proposed for a bidirectional multiport single phase two stage microinverter without electrolytic capacitor. The application of this converter is for power factor correction under non-linear grid tied load. The converter is composed of a triple active bridge series-resonant DC/DC converter cascaded with a voltage source inverter where a film capacitor is used in the DC-Link. Power decoupling is obtained due to a high ripple low frequency voltage in the DC-Link. The proposed controller has three cascaded loops to control the DC-Link average voltage, the instantaneous grid current and the point of common coupling voltage respectively. This strategy allows having a high speed steady-state response, good stability, low harmonic distortion in the grid, bidirectional power flow and low computational cost unlike other controllers. Two different cases have been tested, the first one when only the grid delivers power to the non-linear load, and the second one when the power flow is shared between the grid and any other DC source (renewable source or battery). Simulation results validate the controller functionality.
KW - DC-Link
KW - DCL
KW - PFC
KW - Power factor corrector
KW - TAB
KW - digital control
KW - single phase
KW - triple active bridge
KW - without electrolytic capacitor
UR - http://www.scopus.com/inward/record.url?scp=85040607735&partnerID=8YFLogxK
U2 - 10.1109/ICEEE.2017.8108891
DO - 10.1109/ICEEE.2017.8108891
M3 - Conference contribution
AN - SCOPUS:85040607735
T3 - 2017 14th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2017
BT - 2017 14th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2017
Y2 - 20 September 2017 through 22 September 2017
ER -
