TY - GEN
T1 - Passivity-Based Multi-Sampled Single-Loop Voltage Control for Grid-Forming VSCs
AU - He, Shan
AU - Blaabjerg, Frede
PY - 2023/8/22
Y1 - 2023/8/22
N2 - Grid-side current feedforward can effectively enhance the dissipativity for single-loop voltage control of grid-forming voltage source converters. However, the dissipative characteristic of converter output impedance is seriously impacted by the LC-filter parameters deviation. Moreover, the LC-filter resonance frequency should be designed larger than the critical frequency, which may impact the switching harmonics filtering. To address this challenge, a multi-sampling voltage control scheme is proposed with converter-side current, capacitor current, and capacitor voltage feedforward. First, the grid-side current feedforward is replaced by converter-side current and capacitor current feedforward, and the LC-filter resonance frequency can be freely designed. In addition, the dissipativity robustness is enhanced through the capacitor voltage feedforward. Finally, the effectiveness of the proposed method is demonstrated through simulation.
AB - Grid-side current feedforward can effectively enhance the dissipativity for single-loop voltage control of grid-forming voltage source converters. However, the dissipative characteristic of converter output impedance is seriously impacted by the LC-filter parameters deviation. Moreover, the LC-filter resonance frequency should be designed larger than the critical frequency, which may impact the switching harmonics filtering. To address this challenge, a multi-sampling voltage control scheme is proposed with converter-side current, capacitor current, and capacitor voltage feedforward. First, the grid-side current feedforward is replaced by converter-side current and capacitor current feedforward, and the LC-filter resonance frequency can be freely designed. In addition, the dissipativity robustness is enhanced through the capacitor voltage feedforward. Finally, the effectiveness of the proposed method is demonstrated through simulation.
KW - Grid-forming converters
KW - dissipativity robustness
KW - multi-sampling
KW - single-loop voltage control
UR - http://www.scopus.com/inward/record.url?scp=85170647771&partnerID=8YFLogxK
U2 - 10.23919/ICPE2023-ECCEAsia54778.2023.10213814
DO - 10.23919/ICPE2023-ECCEAsia54778.2023.10213814
M3 - Article in proceeding
T3 - International Conference on Power Electronics
SP - 79
EP - 85
BT - 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)
PB - IEEE (Institute of Electrical and Electronics Engineers)
T2 - 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)
Y2 - 22 May 2023 through 25 May 2023
ER -