SYSTEMS AND METHODS FOR VOLT/VAR CONTROL IN ELECTRIC POWER MANAGEMENT AND AUTOMATION SYSTEMS

• US 20160224045A1
• Filed: 02/02/2015
• Published: 08/04/2016
• Est. Priority Date: 02/02/2015
• Status: Active Grant

• Current Assignee: Opus One Solutions Energy Corporation (Opus One Solutions, Inc.)
• Original Assignee: Opus One Solutions Energy Corporation (Opus One Solutions, Inc.)
• Inventors: Zidan, Aboelsood, Shaaban, Mostafa Farouk, Wong, Joshua
• Granted Patent: US 10,585,445 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05F 1/66 Regulating electric power
• CPC Class Codes: H02J 3/12 for adjusting voltage in ac networks by changing a characteristic of the network load
• CPC Class Codes: H02J 3/18 Arrangements for adjusting, eliminating or compensating reactive power in networks for adjustment of voltage H02J3/16
• CPC Class Codes: Y02E 40/30 Reactive power compensation

Abstract

A dynamic auto-adaptive volt/VAR control includes a memory storing program code, a communications channel operatively connected to a volt/VAR device, and a processor. The processor is configured to access a database of prior system knowledge and receive real-time measurements and power system operating condition information. The processor processes the prior system knowledge and the real time measurements and operating condition information to create a set of commands for voltage and reactive power control that will result in at least one of: (a) maintaining a voltage profile at the volt/VAR device within predefined limits, or (b) reducing electrical losses through voltage optimization. The processor causes the set of commands to be sent to the volt/VAR device.

Claims

1. A multi-stage dynamic auto-adaptive volt/VAR control, comprising:

memory storing program code;

a communications channel operatively connected to a volt/VAR device;

a processor configured to;

access a database of prior system knowledge;

receive real-time measurements and power system operating condition information;

process the prior system knowledge and the real time measurements and operating condition information to create a set of commands for voltage and reactive power control that will result in at least one of;

(a) maintaining a voltage profile at the volt/VAR device within predefined limits, or (b) reducing electrical losses through voltage optimization;

cause the set of commands to be sent to the volt/VAR device through a plurality of stages in the time dimension.

2. The volt/VAR control according to claim 1, wherein the commands comprise updated set points.

3. The volt/VAR control according to claim 1, wherein the commands comprise control decisions.

4. The volt/VAR control according to claim 1, wherein the volt/VAR device comprises a voltage regulator.

5. The volt/VAR control according to claim 1, wherein the volt/VAR device comprises a load tap changer.

6. The volt/VAR control according to claim 1, wherein the volt/VAR device comprises a primary or secondary capacitor bank.

7. The volt/VAR control according to claim 1, wherein the volt/VAR device comprises a distribution flexible AC transmission system.

8. The volt/VAR control according to claim 1, wherein the volt/VAR device comprises a unified power flow control.

9. The volt/VAR control according to claim 1, wherein the volt/VAR device comprises an energy storage system.

10. The volt/VAR control according to claim 9, wherein the volt/VAR device comprises a switched capacitor bank.

11. The volt/VAR control according to claim 1, wherein the volt/VAR device comprises a smart inverter.

12. The volt/VAR control according to claim 1, wherein the volt/VAR device comprises a device having with real and reactive power controls.

13. The volt/VAR control according to claim 1, wherein the control is configured to support parallel processing in a manner whereby it can be centralized at one controller or decentralized across multiple controllers.

14. The volt/VAR control according to claim 1, wherein the volt/VAR device comprises a plurality of volt/VAR devices.

15. A multi-tiered dynamic auto-adaptive volt/VAR control, comprising:

memory storing program code;

a communications channel operatively connected to a volt/VAR device;

a processor configured to;

access a database of prior system knowledge;

receive real-time measurements and power system operating condition information;

process the prior system knowledge and the real time measurements and operating condition information to create a set of commands for voltage and reactive power control that will result in at least one of;

(a) maintaining a voltage profile at the volt/VAR device within predefined limits, or (b) reducing electrical losses through voltage optimization;

cause the set of commands to be sent to the volt/VAR device through a plurality of tiers of a hierarchical electrical power system.

16. A distributed dynamic auto-adaptive volt/VAR control, comprising:

memory storing program code;

a communications channel operatively connected to a volt/VAR device;

a processor configured to support parallel processing in a manner whereby it can be centralized at one controller or decentralized across multiple controllers, the processor being further configured to;

access a database of prior system knowledge;

receive real-time measurements and power system operating condition information;

process the prior system knowledge and the real time measurements and operating condition information to create a set of commands for voltage and reactive power control that will result in at least one of;

(a) maintaining a voltage profile at the volt/VAR device within predefined limits, or (b) reducing electrical losses through voltage optimization; and

cause the set of commands to be sent to the volt/VAR device.