| |
Consideration of Converter Losses and Generated Harmonics in VSC-HVDC
| [View]
[Download]
|
| Author(s) |
H. Konishi; C. Takahashi; H. Sato; H. Kishibe |
| Abstract |
Relationships both converter losses and generated harmonics of VSC-HVDC were
studied for the number of PWM pulses and the number of converter stages by EMTDC digital
simulation. The following results were cleared. (1) Converter losses increased nearly in proportion to
the equivalent pulse number, which was defined by multiplying the number of PWM pulses by the
number of converter stages. (2) Harmonic distortion factors could be reduced by increasing both the
number of PWM pulses and the number of converter stages. (3) The harmonic distortion factor of the
multi-stage converter configuration could be made much smaller than that of the single-stage
configuration for the same equivalent pulse number. And (4) The AC harmonic filter capacity was
nearly proportional to the 1/(number of PWM pulses (number of converter stages) ). The increase
in the number of converter stages was more effective to decrease AC filter size than increasing the
number of PWM pulses. Finally, the VSC-HVDC system can be optimized by balancing above
calculation results with increased converter stage cost and lowered harmonic filter cost. |
| Download |
| Filename: | EPE-PEMC2002 - T1-050 - Konishi.pdf |
| Filesize: | 160.1 KB |
|
| Type |
Members Only |
| Date |
Last modified 2004-05-12 by System |
| |
 |