| 摘要 |
The present invention relates to a system of controlling a piston in a linear compressor, a method of controlling a piston in a linear compressor, as well as a linear compressor, particularly applicable to cooling systems that may include, for instance, refrigerators, air-conditioning systems and the like. The objectives of the present invention are a system for controlling a linear compressor ( 10 ), the linear compressor ( 10 ) comprising a movable assembly ( 1 ), a motor ( 1 ) fed by an application voltage (V<SUB>T</SUB>) generating a current circulating in the motor ( 1 '), an electronic switching device ( 52 ), and an electronic circuit ( 51 ) controlling the electronic switching device ( 52 ) to control the application voltage (VT) applied to the motor ( 1 '), and the motor ( 1 ) driving the movable assembly ( 1 ), the electronic circuit ( 51 ) measuring an actuation phase (phi<SUB>c</SUB>) of the current circulating in the motor ( 1 ') and a dynamic phase (phip) of the movable assembly ( 1 ) and establishing a relationship between the actuation phase (phi<SUB>c</SUB>) and the dynamic phase (phip) determining a measured phase (phipc), the electronic circuit ( 51 ) obtaining a value of a correction voltage (V<SUB>F</SUB>) from the value of the measured phase (phipc) the electronic circuit ( 51 ) obtaining a value of a defined voltage (Vp) front a physical position (DP) of the movable assembly ( 1 ), the electronic circuit ( 51 ) actuating on the value of applied voltage (V<SUB>T</SUB>) from the sum of the correction voltage (VF) and the defined voltage (Vp). A method or controlling a linear compressor, a linear compressor and a cooling system are also objectives of the present invention.
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