A novel auxiliary frequency controller for HVDC transmission links

Author

Tao, Yu ; Shande, Shen ; Shouzhen, Zhu ; Yuzhu, Zhao ; Weijiang, Zhu

Author_Institution

Dept. of Electr. Eng. & Electron. Application, Tsinghua Univ., Beijing, China

Volume

1

fYear

2002

fDate

13-17 Oct 2002

Firstpage

515

Abstract

Since a HVDC transmission line with an auxiliary frequency controller has many advantages in both technical and economic aspects; the paper presents a novel nonlinear PID controller for HVDC systems. The controller consists of a PD controller, a PID controller and a switch with a threshold between two-part controllers. In order to enhance the control flexibility, the dead-zones are also introduced into the controller. With the help of PSCAD/EMTDC, a detailed simulation model of an AC-DC system is created. The simulation results show the controller can satisfy the engineering needs of frequency control for AC-DC systems under different disturbance conditions.

Keywords

EMTP; HVDC power transmission; digital simulation; frequency control; power system simulation; power transmission control; power transmission lines; three-term control; two-term control; AC-DC system simulation model; HVDC transmission line; HVDC transmission links; PD controller; PSCAD/EMTDC; auxiliary frequency controller; control flexibility enhancement; dead-zones; economic aspects; nonlinear PID controller; simulation model; switch; technical aspects; two-part controllers; Automatic frequency control; Control systems; Dispatching; Electronic mail; Frequency control; HVDC transmission; Nonlinear control systems; Power generation economics; Switches; Three-term control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on

Print_ISBN

0-7803-7459-2

Type

conf

DOI

10.1109/ICPST.2002.1053596

Filename

1053596