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Method for charging battery of electric car by resonant circuit, involves controlling inverter to achieve reference current at primary winding of transformer so that envelope of current in primary winding presents sine squared shape
Method for charging battery of electric car by resonant circuit, involves controlling inverter to achieve reference current at primary winding of transformer so that envelope of current in primary winding presents sine squared shape
The method involves measuring the voltage of a battery (3), and determining setpoint values of absorbed current and voltage on a power supply network (2). A reference current is determined as a function of the battery voltage and the setpoint values of current and voltage absorbed on the power supply network. An inverter (6) is controlled to achieve the reference current at a primary winding of a transformer (9) so that an envelope of a current flowing in the primary winding of the transformer presents a sine squared shape in phase with the voltage absorbed on the power supply network. An independent claim is also included for a system for charging a battery of an electric car by a resonant circuit.
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