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METHOD FOR THE PREDICTIVE CLOSED-LOOP CONTROL OF A LINEAR DRIVE OR OF A LINEAR COMPRESSOR AND LINEAR DRIVE OR LINEAR COMPRESSOR SUBJECT TO PREDICTIVE CLOSED-LOOP CONTROL
METHOD FOR THE PREDICTIVE CLOSED-LOOP CONTROL OF A LINEAR DRIVE OR OF A LINEAR COMPRESSOR AND LINEAR DRIVE OR LINEAR COMPRESSOR SUBJECT TO PREDICTIVE CLOSED-LOOP CONTROL
The invention relates to a method for the closed-loop control of a linear drive (2), which has a stator (4), a rotor (5) which is capable of moving to and fro along a drive axis (9) therein, and a drive coil (6) through which a coil current flows, in particular for a linear compressor (3), which has a piston housing (7) and a compressor piston (8), which is capable of moving to and fro along a piston axis (33) therein and is driven by the linear drive (2), wherein the coil current is subject to closed-loop control, to be precise such that the actual coil current and the desired coil current are essentially equal; as well as an apparatus (1) suitable for carrying out the method and a method for cooling goods (25) and/or for compressing a fluid (32) which uses the apparatus (1) according to the invention or the closed-loop control method according to the invention. The invention is characterized by virtue of the fact that the closed-loop control of the to-and-fro movement of the rotor (5) or of the compressor piston (8) can be controlled efficiently and precisely using simple means without a complex sensor system being required.
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