TY - GEN
T1 - A control scheme of three phase solid state transformer for PV generation based on improved voltage-tracking method of DC links
AU - Ma, Xin
AU - Yang, Xu
AU - Zhang, Fan
AU - Huang, Lang
AU - Li, Zhi
AU - Song, Haijun
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5/17
Y1 - 2017/5/17
N2 - A three-phase solid state transformer (SST) based on serial H-bridge multilevel converter, with advantages as expandable modular structure, controlled power quality and low dependence on copper/steel, is applied to replace the traditional line frequency step-up transformer on PV generation. Because of the input-parallel output-serial dual active bridge (DAB) based submodules with inner dc links, the voltage balance of medium voltage (MV) dc links and the control of low voltage side input dc link are concerned. An overall control scheme is proposed based on the voltage tracking control scheme of dc links, within which the voltage balance between submodules is realized through average voltage control and dc link voltage tracking control. Improvements are also proposed for shaping DAB current and increasing the speed of dynamic response. Simulation results are given in the end.
AB - A three-phase solid state transformer (SST) based on serial H-bridge multilevel converter, with advantages as expandable modular structure, controlled power quality and low dependence on copper/steel, is applied to replace the traditional line frequency step-up transformer on PV generation. Because of the input-parallel output-serial dual active bridge (DAB) based submodules with inner dc links, the voltage balance of medium voltage (MV) dc links and the control of low voltage side input dc link are concerned. An overall control scheme is proposed based on the voltage tracking control scheme of dc links, within which the voltage balance between submodules is realized through average voltage control and dc link voltage tracking control. Improvements are also proposed for shaping DAB current and increasing the speed of dynamic response. Simulation results are given in the end.
KW - Cascaded Converter
KW - Control of SST
KW - Dual Active Bridge
KW - Power Electronics Transformer
KW - Solid State Transformer
UR - https://www.scopus.com/pages/publications/85019989830
U2 - 10.1109/APEC.2017.7930736
DO - 10.1109/APEC.2017.7930736
M3 - 会议稿件
AN - SCOPUS:85019989830
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 474
EP - 479
BT - 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Y2 - 26 March 2017 through 30 March 2017
ER -