Wireless power converter utilized as a capacitive power transfer system

A direct current (DC) to alternating current (AC) wireless converter apparatus for locally connecting a capacitive power transfer system to a DC grid and supplying power to a load connected in the capacitive power transfer system, comprising:

• at least two connectors enabling a galvanic contact to at least two supply lines of a DC grid;
• a driver coupled to the connectors and configured to generate an AC power signal from an input DC signal fed by the at least two connectors;
• and
• at least a pair of transmitter electrodes connected to an output of the driver, wherein the components of the DC to AC wireless converter apparatus are assembled on a surface of at least one layer, the at least one layer including a pair of receiver electrodes and the two supply lines of the DC grid, such that the at least two connectors extend into the at least one layer to contact the at least two supply lines and the at least a pair of transmitter electrodes overlap with and transmit the AC power signal to the pair of receiver electrodes,
• wherein a frequency of the AC power signal substantially matches a series-resonance frequency of a series-resonance circuit including a capacitive impedance formed between the at least a pair of transmitter electrodes and the pair of receiver electrodes.