A New Method of Harmonic Minimization in HVDC Transmission System Based on New Converter Transformer

Jayesh U. Kothavade, Manjusha R. Bachawad

Abstract


The bulk amount of electrical power over a long distance
is transmitted by the High Voltage Direct Current
Transmission (HVDC) network. The converter transformer is
an integral part of an HVDC system. The major losses occur
in the converter transformer is a harmonic losses. Traditional
converter transformer has certain drawbacks which are
overcome by the new converter transformer and its filtering
method which is presented in this paper. The problems
associated with the traditional converter transformer is the
harmonic content in the primary winding, due to this
harmonic content increase in noise and loss produced in the
transformer. This paper presents the wiring connection
scheme, determination of the winding turn ratio and it
explains the harmonic reduction principle of the new
converter transformer. Finally, it prepared the MATLAB
simulation model of HVDC transmission scheme based on
traditional converter transformer and new converter
transformer. The parameters for the traditional converter
transformer and HVDC transmission system are taken from
the Chandrapur-Padghe HVDC transmission line. The
simulation results of the FFT analysis for current waveform
shows that the 5th,7th, 11th and 13th harmonic components can
be efficiently reduced on the valve side with its filtering
method. The simulation results have compared with
traditional HVDC system; the feasibility and reliability of the
new converter transformer and the method of harmonic
reduction are verified.


Full Text:

PDF

References


IEEE PES Harmonic Working Group, “Characteristics and

Modeling of Harmonic Sources Power Electronic

Devices," IEEE Trans. Power Delivery, vol. 16, no.4,

pp.791-800, October. 2001.

IEEE Power Eng. Soc. T&D Committee, "Impact of

Aggregate Linear Load Modeling on Harmonic Analysis:

A Comparison of Common Practice and Analytical

Models," IEEE Trans. Power Delivery, vol. 16, no. 4,

pp.625-630, April. 2003.

Hsin-Wei Lin, Gary W. Chang, Shin-Kuan Chen,

"Modeling Characteristics of Harmonic Currents

Generated by High-Speed Railway Traction Drive

Converters," IEEE Trans. Power Delivery, vol. 19, no. 2,

pp.766-630, April. 2004.

B. Kulicke, J. Rittiger, "Calculation of HVDC-Converter

Harmonics in Frequency Domain with Regrad to

Asymmetries and Comparison with Time Domain

Simulations," IEEE Trans. Power Delivery, vol. 10, no. 4,

pp.625-630, October. 1995.

Jiazhu XU, Longfu LUO, Yong LI, Ji LI, Fusheng LIU,

“A Novel Method of Harmonic Suppression in the AC/DC

Transmission System Based on Novel Converter

Transformer”, 2006 International Conference Power

System Technology.

Longfu LUO, Yong Li, Kazuo Nakamura, Christian

Rehtanz, Jiazhu Xu, “ Study on characteristics parameters

of a new converter transformer for HVDC systems”, IEEE

Transaction on Power Delivery, Vol. 24, No.4, October

J. C. Wu, K. D. Wu and H. L. Jou, “Parallel operation of

passive power filter and hybrid power filter for harmonic

suppression,” Proc. Inst. Elect. Eng. Generation,

Transmission, Distribution, vol.148, no.1, pp. 8-14, Jan.

V. Grag, G. Bhuvneswari and B. Singh, “ T- connected

auto transformer based 24 pulse ac-dc converter for

variable frequency induction motor drives,” IEEE Trans.

Energy Conv., Vol. 21, No. 3, pp. 663-672, Sep. 2006.

Yong LI, Longfu LUO, Jiazhu XU, Fusheng LIU, Bo Hu

and Ji LI, “ A new converter transformer and a

corresponding inductive filtering method for HVDC

transmission system”, IEEE Transaction on Power

Delivery, Vol. 23, No.3, July 2008.

Yong LI, Longfu LUO, Kazuo Nakamura, Fusheng LIU

,Gerhard Krost, Jiazhu XU, and Ji LI, “Harmonic

Characteristics of New HVDC Transmission System

Based on New Converter Transformer”, Nanjing China

DRPT2008 6-9 April 2008.

R. S. Parulkar, M. Ahfaz, P. B Chimankar, “ Operational

Experience of Chandrapur-Padghe HVDC Bipole

Project”, Fifteenth National Power System Conference

(NPSC), IIT Bombay, December 2008.


Refbacks

  • There are currently no refbacks.


 

Copyright © IJETT, International Journal on Emerging Trends in Technology