Version 1
: Received: 3 June 2021 / Approved: 4 June 2021 / Online: 4 June 2021 (10:48:27 CEST)
How to cite:
Xu, W.; Wang, B.; Liu, J.; Li, D. An Improved Droop Control Strategy for Grid-connected Inverter Power Stability and Harmonic Suppression Under Grid Fluctuation and Inter-harmonics. Preprints2021, 2021060136. https://doi.org/10.20944/preprints202106.0136.v1
Xu, W.; Wang, B.; Liu, J.; Li, D. An Improved Droop Control Strategy for Grid-connected Inverter Power Stability and Harmonic Suppression Under Grid Fluctuation and Inter-harmonics. Preprints 2021, 2021060136. https://doi.org/10.20944/preprints202106.0136.v1
Xu, W.; Wang, B.; Liu, J.; Li, D. An Improved Droop Control Strategy for Grid-connected Inverter Power Stability and Harmonic Suppression Under Grid Fluctuation and Inter-harmonics. Preprints2021, 2021060136. https://doi.org/10.20944/preprints202106.0136.v1
APA Style
Xu, W., Wang, B., Liu, J., & Li, D. (2021). An Improved Droop Control Strategy for Grid-connected Inverter Power Stability and Harmonic Suppression Under Grid Fluctuation and Inter-harmonics. Preprints. https://doi.org/10.20944/preprints202106.0136.v1
Chicago/Turabian Style
Xu, W., Jiang Liu and Da Li. 2021 "An Improved Droop Control Strategy for Grid-connected Inverter Power Stability and Harmonic Suppression Under Grid Fluctuation and Inter-harmonics" Preprints. https://doi.org/10.20944/preprints202106.0136.v1
Abstract
This paper presents an improved droop control strategy for grid-connected inverter power stability and power quality under distorted with consideration of grid fluctuation and inter-harmonics. An instantaneous frequency without PLL and amplitude of capacitor voltage feed-forward control strategy is given to power stability control, meanwhile a grid current feedback control is given by an incomplete derivation with a high-pass filter, so that the harmonics and inter-harmonics current can be suppressed. These approaches can provide both good active and reactive power dynamic response under fluctuation of frequency, and rejection ability against harmonic and inter-harmonic voltage. Based on model of inverter, the proposed control strategies are designed in detail. Simulations and experiments are present to validate the effectiveness of proposed method.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
