Pseudo-Random Sequences in DQ-Domain Analysis of Feedforward Control in Grid-Connected Inverters
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Pseudo-Random Sequences in DQ-Domain Analysis of Feedforward Control in Grid-Connected Inverters. / Roinila, Tomi; Messo, Tuomas; Suntio, Teuvo; Vilkko, Matti.
17th IFAC Symposium on System Identification SYSID 2015 – Beijing, China, 19–21 October 2015. 2015. p. 1301-1306 (IFAC-PapersOnLine; Vol. 48, No. 28).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
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TY - GEN
T1 - Pseudo-Random Sequences in DQ-Domain Analysis of Feedforward Control in Grid-Connected Inverters
AU - Roinila, Tomi
AU - Messo, Tuomas
AU - Suntio, Teuvo
AU - Vilkko, Matti
PY - 2015
Y1 - 2015
N2 - Grid-parallel inverters are typically used to connect renewable energy sources to a power grid. The impedance mismatch between the grid and the interfacing circuit can generate harmonic resonances which may lead to reduced power quality. The impedance mismatch can be mitigated by applying an inverter that employs feedforward control. This paper presents a novel DQ-domain technique, based on pseudo-random sequences, for acquiring the impedance information and verifying the effectiveness of the feedforward control. The results can be used for tuning the feedforward control and as a method to perform fast on-line stability analysis of grid-connected systems in the DQ domain.
AB - Grid-parallel inverters are typically used to connect renewable energy sources to a power grid. The impedance mismatch between the grid and the interfacing circuit can generate harmonic resonances which may lead to reduced power quality. The impedance mismatch can be mitigated by applying an inverter that employs feedforward control. This paper presents a novel DQ-domain technique, based on pseudo-random sequences, for acquiring the impedance information and verifying the effectiveness of the feedforward control. The results can be used for tuning the feedforward control and as a method to perform fast on-line stability analysis of grid-connected systems in the DQ domain.
KW - Feedforward control
KW - Fourier analysis
KW - Frequency-response methods
KW - Inverters
KW - Signal analysis
U2 - 10.1016/j.ifacol.2015.12.311
DO - 10.1016/j.ifacol.2015.12.311
M3 - Conference contribution
T3 - IFAC-PapersOnLine
SP - 1301
EP - 1306
BT - 17th IFAC Symposium on System Identification SYSID 2015 – Beijing, China, 19–21 October 2015
ER -