AUTOMATIC METHOD FOR CONTROLLING A HIGH-FREQUENCY INDUCTIVE COUPLING POWER TRANSFER SYSTEM
First Claim
1. An automatic method for controlling a high-frequency inductive coupling power transfer device wherein it has a closed-loop control system (4) that controls misalignments of up to 99% of the area of the winding (1.2.1) of the secondary (1.2) owing to the fact thatthe closed-loop control system (4) gets the information on the power transferred to the charging system (2) and the phase shift between the voltage supplied by a supply system (3) and the current absorbed,modifies the supply frequency so that the phase shift between the voltage and current is null,modifies the supply voltage of the supply system (3) so that the supply power is that required by the system, andmaintains the power designated for a given misalignment until the supply system (3) reaches its nominal value,meaning that the power transferred to a battery charging system (2) is kept equal to the nominal power, both for battery charging systems (2) with a fixed secondary (1.2) and for uninterruptible power supply systems (3) with a mobile secondary (1.2).
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Abstract
The invention relates to an automatic method for controlling a high-frequency inductive coupling power transfer system, which maintains the transferred power at a load equal to the nominal load with misalignments of up to 99% of the area of the secondary, in which the supply voltage and frequency of the system are controlled using a closed-loop control system in order to regulate the misalignments and the variation in the distance to the secondary and, in this way, transfer the nominal power.
21 Citations
10 Claims
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1. An automatic method for controlling a high-frequency inductive coupling power transfer device wherein it has a closed-loop control system (4) that controls misalignments of up to 99% of the area of the winding (1.2.1) of the secondary (1.2) owing to the fact that
the closed-loop control system (4) gets the information on the power transferred to the charging system (2) and the phase shift between the voltage supplied by a supply system (3) and the current absorbed, modifies the supply frequency so that the phase shift between the voltage and current is null, modifies the supply voltage of the supply system (3) so that the supply power is that required by the system, and maintains the power designated for a given misalignment until the supply system (3) reaches its nominal value, meaning that the power transferred to a battery charging system (2) is kept equal to the nominal power, both for battery charging systems (2) with a fixed secondary (1.2) and for uninterruptible power supply systems (3) with a mobile secondary (1.2).
Specification