Contactless power transfer system
First Claim
1. A contactless near field inductively coupled power transfer system including:
- a. a plurality of power transmitter coils;
b. a plurality of power receiver coils each inductively coupled in use to selected one of the power transmitter coils;
c. a power transmitter module for distributing power to the power transmitter coils;
d. a power receiver module for supplying power received by the power receiver coils to a plurality of associated loads; and
e. a power management module for controlling the supply of power to the power transmitter coils or the power supplied by the power receiver module to the loads,wherein the power transmitter coils and power receiver coils are configured to rotate with respect to each other during power transmission, and the power management module controls the power transmitter module to distribute power to selected ones of the power transmitter coils based on power demands of the loads during rotation.
5 Assignments
0 Petitions
Accused Products
Abstract
A contactless inductively coupled power transfer system is provided including multiple pairs of power transmitter and power receiver coils and a power management module for controlling the supply of power to transmitter coils or the power supplied by the power receiver module to loads. The design is particularly suited for use in a wind turbine to supply power to the nacelle. The transmitter coils may be driven in phase at the same frequency or at different frequencies selected to avoid interaction between transmitter coils and the power transmitter module. The transmitter and receiver coils may be arranged in a traditional slip ring type configuration with adjacent coil pairs are physically spaced apart to avoid cross coupling with adjacent transmitter and receiver coil pairs shielded from each other. The power transmitter module may employ Zero Voltage Switching (ZVS).
16 Citations
24 Claims
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1. A contactless near field inductively coupled power transfer system including:
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a. a plurality of power transmitter coils; b. a plurality of power receiver coils each inductively coupled in use to selected one of the power transmitter coils; c. a power transmitter module for distributing power to the power transmitter coils; d. a power receiver module for supplying power received by the power receiver coils to a plurality of associated loads; and e. a power management module for controlling the supply of power to the power transmitter coils or the power supplied by the power receiver module to the loads, wherein the power transmitter coils and power receiver coils are configured to rotate with respect to each other during power transmission, and the power management module controls the power transmitter module to distribute power to selected ones of the power transmitter coils based on power demands of the loads during rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification