发明名称 |
REFRIGERANT COMPRESSOR DRIVES OFFERING ENHANCED ROBUSTNESS, EFFICIENCY AND RATED VOLTAGE OPERABILITY |
摘要 |
Apparatuses, methods, and systems offering enhanced robustness, efficiency and rated voltage operability for refrigerant compressor drives are disclosed. An exemplary embodiment is a method of operating a variable frequency drive. The method includes operating the drive over a first operating range to provide at least a desired operating speed and minimize d-axis current, operating the drive over a second operating range including injecting d-axis current to provide at least the desired operating speed, operating the drive over a third operating range at a de-rated speed less than the desired operating speed. In the first operating range the drive input voltage is greater than a first value. In the second operating range the drive input voltage is lower than the first value and greater than a second value. In the third operating range the drive input voltage is lower than the second value. |
申请公布号 |
US2015318813(A1) |
申请公布日期 |
2015.11.05 |
申请号 |
US201514800440 |
申请日期 |
2015.07.15 |
申请人 |
Trane International Inc. |
发明人 |
West Nathan Thomas;Beekman Dennis Myron;Foye David Marshall |
分类号 |
H02P27/04;F25B31/02;H02P6/00 |
主分类号 |
H02P27/04 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
providing a variable frequency drive configured to operate a motor to drive a refrigerant compressor using power from a power source; operating the drive over a first operating range to provide at least a desired operating speed and minimize d-axis current, wherein over the first operating range the drive input voltage is greater than a first value in a rated voltage range; operating the drive over a second operating range including injecting d-axis current to provide at least the desired operating speed, wherein over the second operating range the drive input voltage is lower than the first value and greater than a second value in the rated voltage range; and operating the drive over a third operating range at a de-rated speed less than the desired operating speed, wherein over the third operating range the drive input voltage is lower than the second value. |
地址 |
Piscataway NJ US |