Pumping system with power optimization

• US 9,932,984 B2
• Filed: 08/21/2014
• Issued: 04/03/2018
• Est. Priority Date: 08/26/2004
• Status: Active Grant

• Current Assignee: Danfoss Power Electronics A/S (Danfoss A/S), Pentair Water Pool And Spa Incorporated (Pentair Plc (Ireland))
• Original Assignee: Danfoss Drives A/S (Danfoss A/S), Pentair Water Pool And Spa Incorporated (Pentair Plc (Ireland))
• Inventors: Stiles, Jr., Robert W., Berthelsen, Lars Hoffmann, Robol, Ronald B., Yahnker, Christopher, Runarsson, Elnar Kjartan
• Primary Examiner(s): BERTHEAUD, PETER JOHN
• Application Number:
  US14/465,659
• Publication Number:
  US 20140363308A1
• Time in Patent Office: 1,321 Days
• Field of Search: 417 12, 417 20, 417 35, 417 36, 417 42, 417 43, 417 441, 417 4411
• CPC Class Codes: E04H 4/1245 Recirculating pumps for swimming pool water
• CPC Class Codes: F04B 49/06 Control using electricity regulating by means of floats actuating electric switches F04B49/04
• CPC Class Codes: F04B 49/065 and making use of computers
• CPC Class Codes: F04B 49/20 by changing the driving speed
• CPC Class Codes: F04D 1/00 Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps adapted for pumping specific fluids F04D7/00; priming or boosting F04D9/00
• CPC Class Codes: F04D 13/06 the pump being electrically driven
• CPC Class Codes: F04D 15/0066 by changing the speed, e.g. of the driving engine
• CPC Class Codes: F04D 27/004 by varying driving speed

Abstract

The present invention provides a pumping system for moving water of a swimming pool, including a water pump and a variable speed motor. In one example, a target volume amount of water and an operational time period is provided, and the operational time period is altered based upon a volume of water moved. In another example, operation of the motor is altered based upon the volume of water moved. In addition or alternatively, a target flow rate of water to be moved by the water pump is determined based upon the target volume amount and a time period. In addition or alternatively, a plurality of operations are performed on the water, and a total volume of water moved by the pump is determined. In addition or alternatively, an optimized flow rate value is determined based upon power consumption.

Claims

1. A pumping system for at least one aquatic application controlled by a user, the pumping system comprising:

a pump;

a variable speed motor coupled to the pump;

a means to determine a parameter indicative of movement of water by the pump; and

a controller including a variable speed drive that provides for substantially infinitely variable speed control of the variable speed motor, the controller in communication with the variable speed motor,

the controller operating the variable speed motor in accordance with a first water operation, and

the controller altering operation of the variable speed motor in response to occurrence of a secondary water operation to account for movement of the water by the pump related to the first water operation and the secondary water operation;

wherein the first water operation is filtering and the secondary water operation is one of cleaning or heating.

2. The pumping system of claim 1, wherein the controller alters operation of the variable speed motor by slowing a motor speed of the variable speed motor.

3. The pumping system of claim 1, wherein the controller alters operation of the variable speed motor by adjusting an operational time period of the variable speed motor.

4. The pumping system of claim 3, wherein the operational time period is bounded by a start time and an end time.

5. The pumping system of claim 4, wherein the end time is determined by the controller based on the operational time period.

6. The pumping system of claim 5, wherein the operational time period is reduced in response to the secondary water operation.

7. The pumping system of claim 6, wherein the controller recalculates a new end time according to a remaining volume of water to be moved.

8. A pumping system for at least one aquatic application controlled by a user, the pumping system comprising:

a pump;

a motor coupled to the pump and driven by a variable speed drive;

a means for determining a movement of water by the pump; and

a controller in communication with the variable speed drive of the motor,

the controller operating the variable speed drive of the motor in accordance with a first water operation having at least one predetermined parameter, and

the controller automatically altering operation of the variable speed drive of the motor in response to occurrence of a secondary water operation to account for the at least one predetermined parameter and the movement of water by the pump related to the first water operation and the secondary water operation;

wherein the first water operation is filtering and the secondary water operation is one of cleaning or heating.

9. The pumping system of claim 8, wherein the predetermined parameter is at least one of an operational time period or a water flow rate.

10. The pumping system of claim 8, wherein the controller is configured to reduce an operational time period of the pumping system based upon the occurrence of the secondary water operation.

11. The pumping system of claim 8, wherein the controller is configured to reduce motor speed based upon the occurrence of the secondary water operation.

12. The pumping system of claim 8, wherein the first water operation includes a first water flow rate and the secondary water operation includes a second water flow rate different from the first water flow rate.

13. A pumping system for at least one aquatic application controlled by a user, the pumping system comprising:

a pump;

a variable speed motor coupled to the pump;

a means to determine a parameter indicative of movement of water by the pump; and

a controller including a variable speed drive that provides for substantially infinitely variable speed control of the variable speed motor, the controller in communication with the variable speed motor,

the controller operating the variable speed motor in accordance with a first water operation, and

the controller altering operation of the variable speed motor in response to occurrence of a secondary water operation to account for movement of the water by the pump related to the first water operation and the secondary water operation;

wherein the controller alters operation of the variable speed motor by adjusting an operational time period of the variable speed motor;

wherein the operational time period is bounded by a start time and an end time;

wherein the end time is determined by the controller based on the operational time period;

wherein the operational time period is reduced in response to the secondary water operation; and

wherein the controller recalculates a new end time according to a remaining volume of water to be moved.

14. The pumping system of claim 13, wherein the first water operation is filtering and the secondary water operation is one of cleaning or heating.

15. A method of operating a pumping system for at least one aquatic application based on performance of a plurality of water operations, the method comprising:

providing a pump and a variable speed motor coupled to the pump;

providing a means to determine a parameter indicative of movement of water by the pump;

providing a controller including a variable speed drive that provides for substantially infinitely variable speed control of the variable speed motor, the controller in communication with the variable speed motor;

operating with the controller the variable speed motor in accordance with a first water operation, wherein the first water operation is filtering; and

altering with the controller the operation of the variable speed motor in response to occurrence of a secondary water operation to account for movement of the water by the pump related to the first water operation and the secondary water operation, wherein the secondary water operation is one of cleaning or heating.

16. The method of claim 15 wherein altering the operation of the variable speed motor is slowing a speed of the variable speed motor.

17. The method of claim 15 wherein altering the operation of the variable speed motor includes adjusting an operational time period of the variable speed motor.

18. The method of claim 17 wherein adjusting the operational time period includes the controller calculating a new end time according to a remaining volume of water to be moved to achieve the filtering.