Sensorless adaptive pump control with self-calibration apparatus for hydronic pumping system

Patent metadata

Field	Value
Publication number	US-9897084-B2
Application number	US-201414339594-A
Country	US
Kind code	B2
Filing date	Jul 24, 2014
Priority date	Jul 25, 2013
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

The present invention provides apparatus that features a signal processor or processing module configured to receive signaling containing information about an adaptive or self-calibrating set point control curve and a varying equivalent system characteristic curve based at least partly on an instant pump pressure and a flow rate using an adaptive moving average filter, and equivalent hydronic system characteristics associated with the instant pump pressure and the flow rate to corresponding motor power and speed reconstructed and remapped using a discrete numerical approach; and determine an adaptive pressure set point, based at least partly on the signaling received.

First claim

What we claim is:

1. Apparatus comprising:
a signal processor or processing module configured at least to:
receive signaling containing information about an adaptive or self-calibrating set point control curve and a varying equivalent system characteristic curve based at least partly on an instant pump pressure and a flow rate using an adaptive moving average filter, and associated signaling containing information about an equilibrium point of pump differential pressure and system pressure formulated in a hydronic domain by utilizing pump and system characteristic curve equations so as to yield system pressure and flow at any particular load and time in a pump hydronic system,
determine equivalent hydronic system characteristics associated with the instant pump pressure and the flow rate to corresponding motor power and speed reconstructed and remapped using a discrete numerical approach; and
determine corresponding signaling containing information about an adaptive pressure set point, based at least partly on the signaling and associated received.

2. Apparatus according to claim 1 , wherein the signal processor or processing module is configured to provide the corresponding signaling containing information about the adaptive pressure set point, including a system pumping flow rate and pressure.

3. Apparatus according to claim 2 , wherein the corresponding signaling contains information used to control a pumping hydronic system.

4. Apparatus according to claim 1 , wherein the signal processor or processing module is configured to:
receive associated signaling containing information about the instant pressure and the flow rate of fluid being pumped in a pumping system; and
determine the adaptive or self-calibrating set point control curve and the varying equivalent system characteristic curve, based at least partly on the associated signaling received.

5. Apparatus according to claim 1 , wherein the signal processor or processing module comprises: at least one processor and at least one memory including computer program code, and the at least one memory and computer program code are configured to, with at least one processor, to cause the signal processor or processing module at least to receive the signaling and determine the adaptive pressure set point.

6. A method comprising:
receiving in a signal processor or processing module signaling containing information about an adaptive or self-calibrating set point control curve and a varying equivalent system characteristic curve based at least partly on an instant pump pressure and a flow rate using an adaptive moving average filter, and associated signaling containing information about an equilibrium point of pump differential pressure and system pressure formulated in a hydronic domain by utilizing pump and system characteristic curve equations so as to yield system pressure and flow at any particular load and time in a pump hydronic system, and determining equivalent hydronic system characteristics associated with the instant pump pressure and the flow rate to corresponding motor power and speed reconstructed and remapped using a discrete numerical approach; and
determining in the signal processor or processing module corresponding signaling containing information about an adaptive pressure set point, based at least partly on the signaling and the associated received.

7. A method according to claim 6 , wherein the method comprises providing from the signal processor or processing module corresponding signaling containing information about the adaptive pressure set point determined, including a system pumping flow rate and pressure.

8. A method according to claim 7 , wherein the corresponding signaling contains information used to control the pumping hydronic system.

9. A method according to claim 6 , wherein the method comprises configuring the signal processor or processing module to:
receive associated signaling containing information about the instant pressure and the flow rate of fluid being pumped in a pumping system; and
determine the adaptive or self-calibrating set point control curve and the varying equivalent system characteristic curve, based at least partly on the associated signaling received.

10. A method according to claim 6 , wherein the method comprises configuring the signal processor or processing module with at least one processor and at least one memory including computer program code, and the at least one memory and computer program code are configured to, with at least one processor, to cause the signal processor or processing module at least to receive the signaling and determine the adaptive pressure set point.

Assignees

• Fluid Handling Llc
• Fluid Handling Llc

Inventors

• Cheng Andrew A
• Gu James J
• Scott Graham A

Classifications

• G05D7/0676

  by action on flow sources (G05D7/0688, G05D7/0694 take precedence) · CPC title

• F04D15/0066 Primary

  by changing the speed, e.g. of the driving engine · CPC title

• F04B49/065 Primary

  and making use of computers · CPC title