TY - GEN
T1 - An Adaptive DC-bus stabilizer for single-phase grid-connected renewable energy source system
AU - Zeng, Rong
AU - Wang, Zhiqiang
AU - Chinthavali, Madhu Sudhan
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/11/3
Y1 - 2017/11/3
N2 - This paper proposes an adaptive DC-bus stabilizer for single-phase grid-connected voltage source converter (VSC) with small-scale renewable energy integration. To enhance converter's power density, the conventional active power decoupling (APD) techniques were adopted to reduce the DC capacitance by compensating the inherent second-order harmonic power ripples in the single-phase VSC. However, it would potentially make the DC voltage vulnerable to transient power ripples, which is a critical issue for the grid-connected renewable energy source (RES) system during grid faults. The proposed DC-bus stabilizer can not only compensate the second-order harmonic power ripples at normal operation, but also enhance the fault ride-through capability of the converter. The circuit topology and its corresponding control strategy are presented, and then simulation results are provided to demonstrate the feasibility and validity of the proposed DC-bus stabilizer under normal operation and grid fault condition.
AB - This paper proposes an adaptive DC-bus stabilizer for single-phase grid-connected voltage source converter (VSC) with small-scale renewable energy integration. To enhance converter's power density, the conventional active power decoupling (APD) techniques were adopted to reduce the DC capacitance by compensating the inherent second-order harmonic power ripples in the single-phase VSC. However, it would potentially make the DC voltage vulnerable to transient power ripples, which is a critical issue for the grid-connected renewable energy source (RES) system during grid faults. The proposed DC-bus stabilizer can not only compensate the second-order harmonic power ripples at normal operation, but also enhance the fault ride-through capability of the converter. The circuit topology and its corresponding control strategy are presented, and then simulation results are provided to demonstrate the feasibility and validity of the proposed DC-bus stabilizer under normal operation and grid fault condition.
KW - 2nd harmonic power ripple
KW - DC-bus stabilizer
KW - Distributed energy resource
KW - Lowvoltage ride-through capability
KW - Renewable energy integration
UR - http://www.scopus.com/inward/record.url?scp=85041438836&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2017.8096590
DO - 10.1109/ECCE.2017.8096590
M3 - Conference contribution
AN - SCOPUS:85041438836
T3 - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
SP - 3260
EP - 3265
BT - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Y2 - 1 October 2017 through 5 October 2017
ER -
