Operation control method, operation control device and compressor

An operation control and compressor technology, applied in the field of compressors, can solve problems such as unfavorable compressor safety and stability, increase compressor manufacturing cost, long response time, etc. The effect of reducing compressor failure

Active Publication Date: 2018-04-03
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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Problems solved by technology

[0004] However, to detect the winding resistance through a resistance tester requires an additional resistance value acquisition device, which undoubtedly increases the manufacturing cost of the compressor. In addition, it takes a certain amount of time to measure the cold resistance and hot resistance, resulting in its response time. Longer, which is not conducive to improving the safety and stability of the compressor

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  • Operation control method, operation control device and compressor
  • Operation control method, operation control device and compressor
  • Operation control method, operation control device and compressor

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Embodiment Construction

[0045] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0046] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0047] Combine below Figure 1 to Figure 3 The operation control scheme according to the embodiment of the present invention will be described in detail.

[0048] figure 1 A schematic flowchart of...

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Abstract

The invention provides an operation control method, an operation control device and a compressor. The operation control method comprises the steps that the real-time circulation current in a winding and the real-time pressure drop of the two ends of the winding are collected; the real-time impedance of the winding is calculated according to the real-time circulation current and the real-time voltage drop; the temperature of the winding is determined according to the corresponding relation between the real-time impedance and a preset temperature of the winding; and the input current of the compressor is regulated and controlled in real time according to the temperature of the winding. The temperature of the winding is determined by calculating the real-time impedance of the compressor winding, then the input current of the compressor is regulated and controlled, so that the response efficiency of variable-frequency control is improved, and the real-time detection of the temperature of the compressor winding is realized; and no extra resistance collection device is needed, so that the hardware manufacturing cost of the compressor is reduced, and popularization of the market of the compressor product is facilitated.

Description

technical field [0001] The present invention relates to the technical field of compressors, in particular to an operation control method, an operation control device and a compressor. Background technique [0002] During the operation of the compressor, excessive load and long operation time will cause the temperature of the compressor winding to be too high, which may lead to compressor failure, and insufficient temperature will lead to incomplete removal of liquid refrigerant in the oil pool. [0003] In the related art, a winding temperature testing system is proposed, which specifically includes: using a resistance tester to detect the cold-state resistance of the winding, closing the switch controller for a period of time, disconnecting the switch controller, and detecting the hot-state resistance of the winding, according to The cold resistance and the hot resistance calculate the winding temperature. [0004] However, detecting the winding resistance through a resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06
CPCF04B49/065
Inventor 左先明
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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