Conclusions
This chapter provided information and performance results of two typical GFUs used in practical HVDC systems. A performance comparison between the two GFUs showed that they are equally capable of operation with a weak ac system having high levels of pollution and harmonic distortion in the commutation voltage. On the other hand, due to the absence of a low-pass filter in its control loop, the DQO GFU is relatively easier to design and is somewhat faster than the conventional type.
In any application of a static converter in an utility environment, a means to synchronize the control system with the ac system plays a very important role. This design information presented here will be useful to utility planners for system studies.
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© 2004 Kluwer Academic Publishers
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(2004). Synchronization Techniques for Power Converters. In: HVDC and FACTS Controllers. Power Electronics and Power Systems. Springer, Boston, MA. https://doi.org/10.1007/1-4020-7891-9_3
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DOI: https://doi.org/10.1007/1-4020-7891-9_3
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