Comprehensive review and comparative analysis of compensation networks for Capacitive Power Transfer systems

Contactless Capacitive Power Transfer (CPT) is one of the emerging fields in the area of wireless power transfer. The system is fairly analogues to the inductive power transfer system. The CPT systems was primarily used for low power and small distance applications due to the development of unsafe voltages across the capacitive interface. However, the use of new compensation networks have enabled the system to be used for small, medium and long distance applications. There is no literature currently available that summarizes all the compensator's available for the CPT network. This makes it extremely difficult to find the best compensator which will suit the requirement of the designer. The paper focuses on the need for compensation and analysis of the system. The results of the analysis can be applied to any of the compensator's that are discussed in the later section. A common ground is then established which would help in finding the best compensator's available. Based on the results obtained, the best compensator for various distances and power applications would be recommended.

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