Control design and operational characteristics comparation for VSC-HVDC supplying active/passive networks

Author

Xu, Jianzhong ; Zhao, Chengyong ; Zhang, Baoshun

Author_Institution

Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control under Minist. of Educ., North China Electr. Power Univ., Beijing, China

fYear

2011

fDate

21-23 June 2011

Firstpage

1381

Lastpage

1386

Abstract

The transient mathematical models of two VSC-HVDC systems which are supplying active and passive networks respectively are developed in d-q synchronous reference frames. All the controllers were designed and realized current decoupled controls by applying PI (Proportional-Integral) regulators. A 2-Level VSC-HVDC supplying active network with fixed DC voltage control in rectifier side and fixed active power control in inverter side was modeled, then a 3-Level VSC-HVDC supplying passive network with fixed DC voltage control in rectifier side and fixed AC voltage control in inverter side was modeled thereafter, then their operational characteristics were tested and compared by simulations in PSCAD/EMTDC, which verified the effectiveness and stability of the designed controllers and validated great potentiality in future VSC-HVDC projects.

Keywords

HVDC power convertors; PI control; invertors; power control; rectifiers; voltage control; PSCAD/EMTDC; VSC-HVDC supplying active network; VSC-HVDC supplying passive network; VSC-HVDC systems; active networks; control design; current decoupled controls; d-q synchronous reference frames; fixed AC voltage control; fixed DC voltage control; fixed active power control; inverter side; operational characteristics; passive networks; proportional-integral regulators; rectifier side; transient mathematical models; Harmonic analysis; Inverters; Mathematical model; Power conversion; Rectifiers; Voltage control; PI (Proportional-Integral) regulators; active network; current decoupled control; operational characteristics; passive network; voltage source converter based HVDC system (VSC-HVDC);

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ICIEA), 2011 6th IEEE Conference on

Conference_Location

Beijing

ISSN

pending

Print_ISBN

978-1-4244-8754-7

Electronic_ISBN

pending

Type

conf

DOI

10.1109/ICIEA.2011.5975803

Filename

5975803