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6) What can be done to improve current designs using DC technology?

Electricity is being generated, transmitted, and distributed mostly in AC, while a substantial amount of electricity is consumed in DC. This results in the requirement to provide converters at each point where DC power is needed. Consequently, the plethora of converters results in a system that experiences increased losses. The concept of hybrid AC/DC systems has been introduced to eliminate the plethora of small and inefficient converters with centralized high efficiency converters.

A hybrid system is expected to deliver both AC and DC electric power more efficiently to consuming centers. Power conversions are done with high power and high efficiency conversion equipment strategically placed along the distribution system. In this way, AC and DC loads can be connected directly to the AC and DC feeders, respectively.

 

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