An innovative hybrid PWM technology for VSC in application of VSC-HVDC transmission system

Author

Ding, Guanjun ; Ding, Ming ; Tang, Guangfu

Author_Institution

Dept. of Electr. Eng. & Autom., Hefei Univ. of Technol., Hefei

fYear

2008

fDate

6-7 Oct. 2008

Firstpage

1

Lastpage

8

Abstract

This paper presents an innovative hybrid PWM technology, its corresponding structures and characteristics suitable for high voltage direct current transmission system based on voltage source converter (VSC-HVDC). The features of optimized PWM (OPWM) are presented and a new algorithm based on the theory of power sums for solving non-linear transcendental equations is introduced. The properties of 3^rd harmonic injection SPWM are also presented. The working mechanism and configuration of the hybrid PWM are discussed in detail. The features of mode detector (the key building block) are also presented. A two terminals VSC-HVDC transmission system is simulated by the simulation software PSCAD/EMTDC linked to Matlab/Simulink, demonstrating the good performances of this new hybrid PWM technology. The theory analyses and simulation results show that this new hybrid PWM technology has great potentiality in the application of VSC-HVDC projects in future.

Keywords

HVDC power convertors; HVDC power transmission; PWM power convertors; nonlinear equations; power conversion harmonics; Matlab-Simulink software; OPWM; PSCAD-EMTDC simulation software; high-voltage direct current transmission system; hybrid PWM technology; mode detector; nonlinear transcendental equation; static pulse width modulation; third-harmonic injection SPWM; two-terminal VSC-HVDC transmission system; voltage source converter; Computer vision; Detectors; EMTDC; Nonlinear equations; PSCAD; Power conversion; Pulse width modulation; Pulse width modulation converters; Software performance; Voltage; HVDC transmission based on VSC (VSC-HVDC); detection function; innovative hybrid PWM technology; optimized PWM; third harmonic injection SPWM;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Power Conference, 2008. EPEC 2008. IEEE Canada

Conference_Location

Vancouver, BC

Print_ISBN

978-1-4244-2894-6

Electronic_ISBN

978-1-4244-2895-3

Type

conf

DOI

10.1109/EPC.2008.4763385

Filename

4763385