Browse > Article

Performance Improvement using Auxiliary Converter on HVDC System  

Kim, Dong-Hee (전남대 공대 전기공학과)
Lee, Hwa-Chun (전남대 공대 전기공학과)
Park, Sung-Jun (전남대 공대 전기공학과)
Nam, Hae-Kon (전남대 공대 전기공학과)
Choi, Joon-Ho (전남대 공대 전기공학과)
Kim, Kwang-Heon (전남대 공대 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.2, 2009 , pp. 217-224 More about this Journal
Abstract
This paper presents a new AC/DC converter scheme for HVDC system to achieve a high power factor operation. The new AC/DC converter consists of two 12-pulse bridge converters in series: the primary and auxiliary converters. Ignition angles of the main and auxiliary converters are controlled independently to maintain the nominal DC voltage and control auxiliary voltage. The resulted DC voltage obtained by superimposing the above two phase modulated voltages can be controlled very rapidly over a wide range, and a high power factor operation is achieved. Performance improvements in power factor and harmonic distortion are validated by theoretic derivations and experiments with prototype HVDC system. With the proposed converters, investment for reactive power compensation and filter in HVDC system can be saved significantly.
Keywords
HVDC; Main converter; Auxiliary converter; Power factor; Firing angle;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 P. Kundur, 'High-Voltage Direct-Current Transmission', chapter 10
2 H. K. Nam, et aI., Estimation of Reasonable Load Shedding Amount and Stabilizing Measures for the Jeju System through Detailed Analysis, Final Report, Korea Power Exchange, 2007.5
3 PSIM: PSIM${\circledR}$ is a simulation software specifically designed for power electronics and motor control
4 Final Report of KERI, 'Development of Prototype Control System for HVDC', 2000
5 Chan - Ki Kim, 'Transient Performance of Cheju-Haenam HVDC System', KEPRI KEPCO, 2001
6 Hussein. D. Al-Majali, 'Transient of modified HVDC converters', Electric Power Systems Research, 2006
7 Roberto Rudervall, J.P. Charpentier, Raghuveer Sharma, 'High Voltage Direct Current Transmission Systems', Technology Review Paper