Method and apparatus utilized for priority sequencing

• US 20010030468A1
• Filed: 12/15/2000
• Published: 10/18/2001
• Est. Priority Date: 12/16/1999
• Status: Abandoned Application

• Current Assignee: Sequent Power, Inc.
• Original Assignee: Sequent Power, Inc.
• Inventors: Margeson, Jeremy, Anderson, George A.
• Application Number:
  US09/737,976
• Publication Number:
  US 20010030468A1
• Time in Patent Office: Days
• US Class Current: 307/31
• CPC Class Codes: H02J 2310/60 Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving

Abstract

A method and apparatus for priority sequencing a plurality of loads identifies, evaluates, assigns priority values, and couples the plurality of loads to a load managing device. Once connected the loads and load managing device are continuously powered. The load managing device includes a monitoring, detecting, and controlling section, which control the loads based on signals received from the loads and a power supply. When a predetermined condition signal is received by the load managing device the loads are allowed to run based on their assigned priority value, which is determined by the configuration of the system, i.e., in what arrangement the loads are coupled to the load managing device. A higher priority load will run by turning off lower priority loads. Once it has finished, the lower priority loads will turn on in sequence of priority, again based on the arrangement of the loads being coupled to the load managing device.

Claims

1. A method comprising the steps of:

identifying loads to be coupled to a system;

determining characteristics of the identified loads;

assigning a range of priority values from a highest priority to a lowest priority of the identified loads corresponding to the determined characteristics;

coupling the identified loads to the system based on the determined priority;

powering the system and the loads with a power source;

monitoring signals from the loads and power source;

detecting predetermined condition signal from the power source or one or more of the loads; and

controlling the loads via the system in response to the detecting of the predetermined condition signal until the predetermined condition signal ends.

2. The method of

claim 1

, wherein the determining characteristics further comprising the step of determining a duty cycle of the load.

3. The method of

claim 2

, wherein the assigning further comprises the steps of:

assigning a higher priority value when the determined duty cycle is lower than a threshold value; and

assigning a lower priority value when the determined duty cycle is higher than a threshold value.

4. The method of

claim 1

, wherein the determining characteristics further comprises the step of determining a importance value of the load.

5. The method of

claim 4

, wherein the assigning further comprises the steps of:

assigning a higher priority value when the determined importance value is lower than a threshold value; and

assigning a lower priority value when the determined importance value is higher than a threshold value.

6. The method of

claim 1

, wherein the determining characteristics further comprises the step of determining a parameter value of the load.

7. The method of

claim 6

, wherein the assigning further comprises the steps of:

assigning a higher priority value when the determined parameter value is lower than a threshold value; and

assigning a lower priority value when the determined parameter value is higher than a threshold value.

8. The method of

claim 6

, wherein the assigning further comprises the steps of:

assigning a higher priority value when the determined parameter value is higher than a threshold value; and

assigning a lower priority value when the determined parameter value is lower than a threshold value.

9. The method of

claim 1

, wherein the detected predetermined condition is loss of power.

10. The method of

claim 1

, wherein the controlling further comprises the steps of:

determining a lowest of the assigned priority value of the detected predetermined condition signal from the one or more loads;

stopping operation of the loads having the assigned priority value below the lowest of the assigned priority values of the detected predetermined condition signal, while continuing to power all the loads; and

starting operation of the loads having the assigned priority value below the lowest of the assigned priority values of the detected predetermined condition signal when the predetermined condition signal ends.

11. A system comprising:

means for identifying loads to be coupled to a load managing device;

means for determining characteristics of the identified loads;

means for assigning a range of priority values from a highest priority to a lowest priority of the identified loads corresponding to the determined characteristics;

means for coupling the identified loads to the load managing device based on the determined priority;

means for powering the load managing device and the loads with a power source;

means for monitoring the loads and power source;

means for detecting predetermined condition signal from the power source or one or more of the loads; and

means for controlling the loads via the load managing device in response to the detecting of the predetermined condition signal until the predetermined condition signal ends.

12. The system of

claim 11

, wherein the means for determining characteristics further comprises a means for determining a duty cycle of the load.

13. The system of

claim 12

, wherein the means for assigning further comprises:

means for assigning a higher priority value when the determined duty cycle is lower than a threshold value; and

means for assigning a lower priority value when the determined duty cycle is higher than a threshold value.

14. The system of

claim 11

, wherein the means for determining characteristics further comprises a means for determining a importance value of the load.

15. The system of

claim 14

, wherein the means for assigning further comprises:

means for assigning a higher priority value when the determined importance value is lower than a threshold value; and

means for assigning a lower priority value when the determined importance value is higher than a threshold value.

16. The system of

claim 11

, wherein the means for determining characteristics further comprises means for determining a parameter value of the load.

17. The system, of

claim 16

, wherein the means for assigning further comprises:

means for assigning a higher priority value when the determined parameter value is lower than a threshold value; and

means for assigning a lower priority value when the determined parameter value is higher than a threshold value.

18. The system of

claim 16

, wherein the means for assigning further comprises:

assigning a higher priority value when the determined parameter value is higher than a threshold value; and

assigning a lower priority value when the determined parameter value is lower than a threshold value.

19. The system of

claim 11

, wherein the detected predetermined condition is [see

claim 9

] (loss of power;

a peak shaving signal;

low power supply energy;

type of power supply energy)

20. The system of

claim 11

, wherein the means for controlling further comprises:

means for determining a lowest of the assigned priority value of the detected predetermined condition signal from the one or more loads;

means for stopping operation of the loads having the assigned priority value below the lowest of the assigned priority values of the detected predetermined condition signal, while continuing to power all the loads; and

means for starting operation of the loads having the assigned priority value below the lowest of the assigned priority values of the detected predetermine condition signal when the predetermined condition signal ends.