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Open accessJournal ArticleDOI
Chun Li, Jason Li, Jieming Li 
18 Citations
This study presents a new ac circuit element – the mutual capacitor, being a dual of the mutual inductor, which is also a new ac transformer.
This paper proposes a switched-capacitor multilevel inverter for high-frequency ac power distribution systems.
Results indicate a wide control range and elimination of the three-phase AC capacitor bank.
Furthermore, the capacitive AC mitigation devices should not be disconnected from the pipeline in order to prevent the adverse effects of AC interference on cathodic protection monitoring.
The described capacitor could find applications for special electronic circuits where a high-frequency response is needed.
These properties allow optimization of a practical formulation of the capacitor placement problem which includes the discrete nature of capacitor installations.
In addition to this advantage, the AC helps to remove the dependence on the accuracy of the reference capacitor employed in the CDC.
In addition, replacing the ac capacitor with one rated for dc can lead to a system reduction, in addition to a considerable reduction in the size of the circuit due to the use of integrated circuits.

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