Digital Simulation of Variable Frequency Transformers for Asynchronous Interconnection in Power System

Author

Chen, Gesong ; Zhou, Xiaoxin

Author_Institution

Power Syst. Dept., CEPRI, Beijing

fYear

2005

fDate

2005

Firstpage

1

Lastpage

6

Abstract

Variable frequency transformers (VFT) is a new technology for asynchronous power system interconnection, which is functionally like back-to-back HVDC device. A digital simulation model of VFT and its control system are formed with electromagnetic transient program (EMTP), and a series of studies on VFT had been accomplished with these models, including VFT energization, speed regulation of rotor, synchronizing, ramp power control, step power control, voltage dependent power limit control, power supply for an isolated passive system, reactive power balance and fault analysis. The response characteristics of VFT under various conditions are discussed, and its advantages are also proved

Keywords

EMTP; HVDC power convertors; power system control; power system interconnection; power system simulation; power transformers; VFT energization; VFT response characteristics; asynchronous power system interconnection; back-to-back HVDC device; digital simulation model; electromagnetic transient program; fault analysis; isolated passive system; power supply; ramp power control; reactive power balance; rotor; speed regulation; step power control; variable frequency transformer; voltage dependent power limit control; Digital simulation; EMTP; Electromagnetic modeling; Frequency; Power control; Power system interconnection; Power system modeling; Power system simulation; Transformers; Voltage control; Asynchronous Power System; B-to-B HVDC; Controlled Power Flow; EMTP; Interconnection; Variable Frequency Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES

Conference_Location

Dalian

Print_ISBN

0-7803-9114-4

Type

conf

DOI

10.1109/TDC.2005.1546991

Filename

1546991