Operatio control method of reciprocating compressor

An operation control, reciprocating technology, used in pump control, liquid variable capacity machinery, mechanical equipment, etc., can solve the problems of different resonance and reduced efficiency.
CN1445455AInactive Publication Date: 2003-10-01LG ELECTRONICS INC
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
LG ELECTRONICS INC
Publication Date
2003-10-01
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses an operation control method of a reciprocating compressor. When the motor is overloaded, the operating frequency is increased so that the magnetic flux generated by the magnet and the input current cancels each other, so that the reciprocating compressor can operate under the overload condition. Stable operation. For this, when the reciprocating compressor using the inverter is operated at a rated frequency, the current load of the motor is measured, and the measured load is compared with a predetermined reference load. By comparison, if the measured load is greater than the reference load, it is determined as overload, and the operating frequency is increased to a certain value higher than the oscillation frequency to perform overload operation. In order to compensate for stroke reduction caused by increasing the operating frequency by a certain value, the voltage applied to the motor is increased to a certain level according to the increased operating frequency, thereby performing an overload operation.
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Description

technical field

[0001] The present invention relates to a reciprocating compressor, in particular to an operation control method of the reciprocating compressor, which can stably drive the compressor when the motor is overloaded. Background technique

[0002] In general, a reciprocating compressor is a device that variably controls cooling capacity released therefrom by changing a compression ratio according to an applied stroke voltage.

[0003] Now, refer to figure 1 to describe a typical reciprocating compressor.

[0004] figure 1 It is a structural block diagram of an operation control device of a general reciprocating compressor.

[0005] Such as figure 1 As shown, the operation control device of a common reciprocating compressor includes: a reciprocating compressor (R.COMP) 12, which is used to receive the stroke supplied to the internal motor (not shown) according to the stroke reference value set by the user voltage, so as to control the vertical movement of the...

Claims

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