System and method of constant pressure, variable speed pump control with local equalization for dissimilar pumps
US8180496B2 · kind B2 · utility
13Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2009 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Mar 16, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2201/1201
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump control system includes a plurality of different variable speed pumps. Each of the pumps can be operated at a different speed to equalize pump loads. A system wide proportional integral differential control loop increases and decreases the speed of all pump motors to maintain a desired system output pressure. A second proportional integral differential control loop associated with each pump adjusts pump speed to equalize a load profile for each respective pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.