TY - JOUR
T1 - Analysis, detection and mitigation of resonance in grid-connected converter systems
AU - Liu, Huaiyuan
AU - Xu, Dianguo
AU - Wu, Jian
AU - Gao, Qiang
AU - Wang, Xiongfei
PY - 2016
Y1 - 2016
N2 - Grid-connected converters have been widely used in the renewable energy generations such as wind power and PV, which makes the conventional power system more flexible and controllable. However, the resonance issues bought by the power converters have been a great threat to the safety and stability of power system operation. This paper presented an overview on analysis, detection and mitigation of resonance in the grid-connected converter systems. The structure and control strategy of grid-connected converter systems were introduced first. Then modeling and stability analysis methods of grid-connected converter systems were also compared, especially the state-space method and the impedance-based method. By using the impedance-based method, this paper analyzed different kinds of resonance mechanism in the grid-connected converter systems. Then different kinds of resonance detection methods were compared, including their advantages and restricts. At last, this paper summarized and classified several kinds of the resonance mitigation methods and points out the advantages of the new active damper.
AB - Grid-connected converters have been widely used in the renewable energy generations such as wind power and PV, which makes the conventional power system more flexible and controllable. However, the resonance issues bought by the power converters have been a great threat to the safety and stability of power system operation. This paper presented an overview on analysis, detection and mitigation of resonance in the grid-connected converter systems. The structure and control strategy of grid-connected converter systems were introduced first. Then modeling and stability analysis methods of grid-connected converter systems were also compared, especially the state-space method and the impedance-based method. By using the impedance-based method, this paper analyzed different kinds of resonance mechanism in the grid-connected converter systems. Then different kinds of resonance detection methods were compared, including their advantages and restricts. At last, this paper summarized and classified several kinds of the resonance mitigation methods and points out the advantages of the new active damper.
KW - Active damping
KW - Grid-connected converter
KW - Impedance-based analysis
KW - LCL filter
KW - Resonance detection
UR - http://www.scopus.com/inward/record.url?scp=84962528280&partnerID=8YFLogxK
U2 - 10.13334/j.0258-8013.pcsee.2016.04.021
DO - 10.13334/j.0258-8013.pcsee.2016.04.021
M3 - Journal article
AN - SCOPUS:84962528280
SN - 0258-8013
VL - 36
SP - 1061
EP - 1074
JO - Zhongguo Dianji Gongcheng Xuebao
JF - Zhongguo Dianji Gongcheng Xuebao
IS - 4
ER -