TY - JOUR
T1 - Synthesis of Variable Harmonic Impedance in Inverter-Interfaced Distributed Generation Unit for Harmonic Damping Throughout a Distribution Network
AU - Wang, Xiongfei
AU - Blaabjerg, Frede
AU - Chen, Zhe
PY - 2012
Y1 - 2012
N2 - This paper proposes a harmonic impedance synthesis technique for voltage-controlled distributed generation inverters in order to damp harmonic voltage distortion on a distribution network. The approach employs a multiloop control scheme, where a selective harmonic load current feedforward loop based on the bandpass filter is developed, in addition to the inner inductor current and the outer capacitor voltage control loops. Together with the use of multiple resonant integrators in the voltage control loop, the negative harmonic inductances and positive harmonic resistances are synthesized at the dominant harmonic frequencies. Thus, the harmonic voltage drop on the grid-side inductance and the harmonic resonances throughout a distribution feeder with multiple shunt-connected capacitors can be effectively attenuated. Simulation and laboratory test results validate the performance of the proposed control method.
AB - This paper proposes a harmonic impedance synthesis technique for voltage-controlled distributed generation inverters in order to damp harmonic voltage distortion on a distribution network. The approach employs a multiloop control scheme, where a selective harmonic load current feedforward loop based on the bandpass filter is developed, in addition to the inner inductor current and the outer capacitor voltage control loops. Together with the use of multiple resonant integrators in the voltage control loop, the negative harmonic inductances and positive harmonic resistances are synthesized at the dominant harmonic frequencies. Thus, the harmonic voltage drop on the grid-side inductance and the harmonic resonances throughout a distribution feeder with multiple shunt-connected capacitors can be effectively attenuated. Simulation and laboratory test results validate the performance of the proposed control method.
UR - http://www.scopus.com/inward/record.url?scp=84864238143&partnerID=8YFLogxK
U2 - 10.1109/TIA.2012.2199955
DO - 10.1109/TIA.2012.2199955
M3 - Journal article
SN - 0093-9994
VL - 48
SP - 1407
EP - 1417
JO - I E E E Transactions on Industry Applications
JF - I E E E Transactions on Industry Applications
IS - 4
ER -