Delta Electronics (thailand) Public Company Limited

Delta Electronics (thailand) Pcl.

Michael Mentele

Ulrich Richter

Jonas Enderlin

Dietmar Walliser

Yibo Wang

Jurgen Schweizer

A wireless power transfer arrangement () for a wireless power transfer across an airgap () by inductive coupling, for example for charging the battery () of an electric vehicle, includes a primary side () with a primary pad () for generating a magnetic field () into the airgap () and a secondary side () arranged on the other side of the airgap () that picks up the magnetic field () and provides the energy received through the magnetic field () to the battery (). The primary side () is for example installed at a charging station and the secondary side () is comprised by the electric vehicle. In order to control the charging process during the power transfer, a wireless communication channel () is provided between the primary () and the secondary () by means of two wireless transceivers (). According to the invention, the wireless transceivers () are adapted such that their communication range is less than twice a largest spatial extent of the primary pad. In this way, the communication between the charging station and the vehicle may not be received by other charging stations or vehicles located at the same charging area. And if the other vehicles and other charging stations of the same charging area are adapted according to the invention as well, their communication does not interfere with each other or otherwise disturb each other such that a complex and laborious pairing process may be avoided.

Wireless power transfer arrangement

The present application relates to a power supply arrangement comprising a power source and a switching arrangement. The switching arrangement includes a switching block, wherein the switching block includes a source interface for connecting the power source, a load interface for connecting a load and a grid interface for connecting a power grid. The switching arrangement includes further a controller for controlling the switching block in dependency of the condition of the power source. The switching arrangement is implemented as a unit separate from the power source. The power supply arrangement comprises further a monitoring device for monitoring the condition of the power source.

Power supply arrangement

A solar power inverter includes a number of photovoltaic (PV) inputs for connecting PV modules, a DC-DC converter at each of the PV inputs and a DC-AC inverter for converting the outputs of the DC-DC converters to an AC output power that may be fed into a power grid. The invention provides a method of controlling such a solar power inverter including the steps of identifying a PV input by assigning a priority value to the PV inputs and identifying the PV input with the highest assigned priority value, calculating a set value for the DC-DC converter at the identified PV input that is equal or below a maximum power capacity of the PV module connected to the identified PV input, and applying the set value for the DC-DC converter at the identified PV input.

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Teningen, Germany

Michael Mentele