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| | Economical aspects |
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Not every pump application will benefit from VFD control. The only way to determine if VFD is right for you is to do a thorough analysis.
Pumping with variable frequency drive (VFD) controlled systems can be separated into two different cases:
| A variable continuous flow is required by the process. The normal way to control the flow is by throttling. The use of a VFD will, in most cases, lead to a substantial energy reduction. | | | | | VFD vs. ON-OFF regulation. Variable speed drive is used to reduce losses when pumping. The effect of the VFD-control depends on the system used. A thorough system analysis has to be performed in order to determine whether variable frequency control might be economically motivated. Systems with high losses relative to geodetic head benefit from VFD control, while the impact of a VFD in lift systems (low losses relative to geodetic head), are negligible at best.
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Read more about technical aspects
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Engineering
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