HVDC system based on VSC technology built with IGBTs.

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SUMMARY

The discussion centers on the behavior of reactive and real power in HVDC systems utilizing VSC technology with IGBTs. It clarifies that while reactive power flows in and out of AC1 and AC2, real power can also be drawn from these sources, as indicated by the bidirectional arrow at the transformer. Participants debate the representation of real power flow, suggesting the addition of a bidirectional arrow to accurately depict this phenomenon. The consensus emphasizes the importance of clear representation in system diagrams for effective understanding.

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  • Understanding of HVDC systems and their components
  • Knowledge of VSC technology and IGBT functionality
  • Familiarity with reactive and real power concepts in electrical engineering
  • Experience with electrical diagrams and their interpretations
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  • Research the role of IGBTs in HVDC systems
  • Study the differences between reactive and real power in power systems
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  • Learn about the implications of power flow representation in electrical diagrams
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Electrical engineers, power system analysts, and professionals involved in HVDC technology and system design will benefit from this discussion.

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In the above fig the arrow indicates that just reactive power is following in and out from the AC1 & AC2. Does it mean that there is no real power follow from AC1 & AC2.
 

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Reactive power always flows out and back; they are just making it clear that it has to be accounted for.

The bidirectional arrow labeled real power indicates that real power may be drawn from AC 1 or 2.
 
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Hello! thanks for your response. Could you please answer to my following question?

There is only one bidirectional arrow at the transformer near AC1 & AC2 which indicates reactive power can follow in and out the transformer. Can I add one more bidirectional arrow at the transformer to represent real power follow? Because I think, not only reactive power but also real power is following in and out the transformer.
 
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