TY - GEN
T1 - A novel control scheme for enhancing low voltage ride through capability of solar generation
AU - He, Yufei
AU - Xu, Zhao
AU - Li, Yujun
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2018/6/18
Y1 - 2018/6/18
N2 - This paper proposes an advanced coordinated control scheme for low voltage ride through (LVRT) of the smart solar inverter. In MATLAB Simulink, a two-stage three-phase grid-connected converter with a practical PV model is developed in several scenarios, including the zero voltage ride through (ZVRT), which is regarded as the most extreme case. The simulation result indicates the faster transient response and the better power quality, compared with previous strategies. Active power fluctuation is reduced and reactive power is produced with a specific gradient based on the depth of voltage dip to satisfy the grid code. A more precise solar energy reference is realized by the proposed strategy with novel controlling loops. It is worthy to mention that more power is captured and stored without any additional devices, due to the adaptive DC-Link voltage and the change of operating restrictions.
AB - This paper proposes an advanced coordinated control scheme for low voltage ride through (LVRT) of the smart solar inverter. In MATLAB Simulink, a two-stage three-phase grid-connected converter with a practical PV model is developed in several scenarios, including the zero voltage ride through (ZVRT), which is regarded as the most extreme case. The simulation result indicates the faster transient response and the better power quality, compared with previous strategies. Active power fluctuation is reduced and reactive power is produced with a specific gradient based on the depth of voltage dip to satisfy the grid code. A more precise solar energy reference is realized by the proposed strategy with novel controlling loops. It is worthy to mention that more power is captured and stored without any additional devices, due to the adaptive DC-Link voltage and the change of operating restrictions.
KW - Digital signal processor
KW - Low voltage ride through
KW - Simultaneous control
KW - Smart inverter
KW - Solar system
UR - https://www.scopus.com/pages/publications/85050021637
U2 - 10.1109/CIEEC.2017.8388433
DO - 10.1109/CIEEC.2017.8388433
M3 - 会议稿件
AN - SCOPUS:85050021637
T3 - CIEEC 2017 - Proceedings of 2017 China International Electrical and Energy Conference
SP - 129
EP - 134
BT - CIEEC 2017 - Proceedings of 2017 China International Electrical and Energy Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 China International Electrical and Energy Conference, CIEEC 2017
Y2 - 25 October 2017 through 27 October 2017
ER -