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Capacity control technique with motor temperature override

A technology of capacity control and temperature threshold, which is applied in the direction of motor control, control system, control of mechanical energy, etc., can solve the problem of not being able to provide the expected output capacity of capacity control

Active Publication Date: 2020-10-02
JOHNSON CONTROLS TYCO IP HLDG LLP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, surge / stall control and motor temperature control may not provide the desired output capacity for capacity control

Method used

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  • Capacity control technique with motor temperature override
  • Capacity control technique with motor temperature override
  • Capacity control technique with motor temperature override

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Embodiment Construction

[0025] One or more specific embodiments are described below. In an effort to provide a concise description of these embodiments, not all features of an actual implementation are described in the specification. It should be appreciated that in the development of any such actual implementation (as in any engineering or design project), a number of implementation-specific decisions must be made to achieve the developer's specific goals (such as meeting system-related and business-related constraints), the objectives may vary from one implementation to another. In addition, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, production, and fabrication for those of ordinary skill having the benefit of this disclosure.

[0026] As mentioned above, the chiller compressor includes a motor that rotates a shaft to operate the compressor. The operation of the motor generates heat within...

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Abstract

A control system (122) includes processing and memory circuitry, the memory circuitry storing a temperature-based capacity control scheme (200) for a chiller system (14) and the processing circuitry being configured to perform the temperature-based capacity control scheme (200). The temperature-based capacity control scheme (200) is performed as a function of a monitored temperature in a motor (50) configured to drive a compressor (32) of the chiller system (14), a first temperature threshold corresponding to the monitored temperature, and a second temperature threshold corresponding to the monitored temperature higher than the first temperature threshold.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit to U.S. Provisional Application No. 62 / 611,822, entitled "CAPACITY CONTROL TECHNIQUE WITHMOTOR TEMPERATURE OVERRIDE," filed December 29, 2017, said U.S. The provisional application is hereby incorporated by reference in its entirety for all purposes. Background technique [0003] The present application relates generally to vapor compression systems, such as chillers, and more particularly to a compressor for a chiller. [0004] This section is intended to introduce the reader to various areas of art that may be related to various aspects of the present disclosure, which are described below. This discussion is considered helpful in providing the reader with background information to facilitate a better understanding of various aspects of this disclosure. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F25B31/00
CPCF25B31/008F25B2400/05F25B2400/13F25B2600/0253F25B2600/2519F25B2700/21156H02K7/083H02K7/09H02K11/25H02K11/35F25B31/006F25B49/022F25B2700/21157H02P29/64F25B49/025
Inventor 柯提斯·克里斯蒂安·克莱恩
Owner JOHNSON CONTROLS TYCO IP HLDG LLP