IP Library Granted Patent US 8,738,194
Granted Patent B2
US 8,738,194 · App. 13/658,416 · Granted May 27, 2014

Mobile micro-grid power system

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Quick Facts
Patent No.
US 8,738,194
App. No.
13/658,416
Granted
May 27, 2014
Kind
B2
Abstract

Methods and control apparatus are presented for controlling supply of electrical power to a mobile micro-grid power system, in which a master controller automatically rebalances the micro-grid by activating and deactivating individual power supplies to preferentially activate non-fuel consuming power supplies and deactivate fuel consuming power supplies so as to minimize fuel consumption for the micro-grid power system.

Claims (28)

1. A stand-alone mobile micro-grid power system disconnected from utility power, comprising:

at least one mobile load capable of consuming electrical power when activated;

a plurality of mobile power supplies operatively coupled with the at least one mobile load and with one another to form a mobile micro-grid, the plurality of mobile power supplies comprising:

at least one mobile non-fuel consuming power supply operatively coupled to provide electrical power to the mobile micro-grid when activated,

at least one mobile fuel consuming generator operatively coupled to provide electrical power to the mobile micro-grid when activated, and

at least one mobile energy storage system operative to store electrical energy and operatively coupled to provide electrical power to the mobile micro-grid when activated; and

a master controller operatively coupled with the plurality of mobile power supplies and with the at least one mobile load, the master controller operative to automatically rebalance the mobile micro-grid by changing an activation state of at least one of the plurality of power supplies, wherein the master controller is operative to:

obtain power supply profile data from the plurality of power supplies;

obtain micro-grid load data associated with the at least one mobile load;

determine a load profile for the mobile micro-grid power system based at least partially on the micro-grid load data;

determine an active reserve power level for the mobile micro-grid power system based at least partially on the micro-grid load data;

balance the supply of electrical power to the mobile micro-grid power system by setting an activation state of one or more of the plurality of power supplies based at least partially on the load profile and the active reserve power level for the mobile micro-grid power system;

receive at least one of a load activation request indicating requested activation of one or more specific electrical loads that are currently deactivated, a load deactivation notification indicating deactivation of one or more specific electrical loads that were previously activated, and an active power supply status change notification indicating a change in a status of a currently active one of the plurality of power supplies;

based on at least one of a received load activation request, a received load deactivation notification, and a received active power supply status change notification, automatically determine if the supply of electrical power to the mobile micro-grid power system needs to be rebalanced based at least partially on the load profile and the active reserve power level for the mobile micro-grid power system; and

if needed, to automatically rebalance the supply of electrical power to the mobile micro-grid power system by changing an activation state of one or more of the plurality of power supplies based at least partially on the load profile and the active reserve power level for the mobile micro-grid power system.

2. The mobile micro-grid power system of claim 1 , wherein the master controller is integrated into one of the plurality of power supplies.

3. The mobile micro-grid power system of claim 1 , wherein the master controller is operative to rebalance the supply of electrical power to the mobile micro-grid power system by automatically selecting one or more of the plurality of power supplies for activation state change based at least partially on one or more fuel consumption parameters associated with the plurality of power supplies so as to minimize fuel consumption for the mobile micro-grid power system and to change the activation state of one or more selected ones of the plurality of power supplies.

4. The mobile micro-grid power system of claim 3 , wherein the master controller is operative to select one or more of the plurality of power supplies for activation state change at least partially to reduce excess spinning reserve capacity in the mobile micro-grid power system beyond the determined active reserve power level.

5. The mobile micro-grid power system of claim 3 , wherein the master controller is operative to automatically select one or more of the plurality of power supplies for activation state change at least partially to increase efficiency of at least one fuel-consuming generator of the plurality of power supplies in the mobile micro-grid power system.

6. The mobile micro-grid power system of claim 3 , wherein the master controller is operative to automatically select one or more of the plurality of power supplies for activation state change at least partially to control the power factor of the mobile micro-grid power system.

7. The mobile micro-grid power system of claim 3 , wherein the master controller is operative to automatically select one or more of the plurality of power supplies for activation state change is done at least partially to control peak shaving in the mobile micro-grid power system.

8. The mobile micro-grid power system of claim 1 , wherein the master controller is operative to delay activation of one or more specific electrical loads that are currently deactivated for which a load activation request has been received until either the supply of electrical power to the mobile micro-grid power system has been rebalanced to accommodate the requested activation or a determination has been made that a current supply of electrical power to the mobile micro-grid power system is sufficient to accommodate the requested activation.

9. The mobile micro-grid power system of claim 8 , wherein the master controller is operative for at least one received load activation request to give permission to activate a partial requested load and to delay permission for activation for a remainder of the requested load until the mobile micro-grid power system is rebalanced.

10. The mobile micro-grid power system of claim 1 , wherein the master controller is operative to rebalance the supply of electrical power to the mobile micro-grid power system by selecting at least one currently deactivated power supply for activation and selecting at least one currently activated supply for deactivation and by changing the activation state of one or more selected ones of the plurality of power supplies.

11. The mobile micro-grid power system of claim 10 , wherein the master controller is operative to select one or more of the plurality of power supplies for activation state change by preferentially selecting at least one currently deactivated non-fuel consuming power supply for activation and selecting at least one currently activated fuel consuming power supply for deactivation.

12. The mobile micro-grid power system of claim 11 , wherein the master controller is operative to preferentially select at least one of a currently deactivated solar energy-based power supply, a currently deactivated wind energy-based power supply, and a currently deactivated battery or capacitive storage-type power supply for activation.

13. The mobile micro-grid power system of claim 1 , wherein the master controller is operative to selectively adjust at least one of the power supply profile data, the micro-grid load data, and the load profile based at least partially on at least one of environmental information relating to the environmental condition of the mobile micro-grid power system and location information relating to the geographical location of the mobile micro-grid power system.

14. The mobile micro-grid power system of claim 1 , wherein the master controller is operative to rebalance the supply of electrical power to the mobile micro-grid power system by changing an activation state of one or more of the plurality of power supplies based at least partially on an indication of imminent loss of at least one of the power supplies.

Assignments (9)
SECURITY AGREEMENT Recorded Jul 8, 2021
From: HUNTER DEFENSE TECHNOLOGIES, INC.; HDT EXPEDITIONARY SYSTEMS, INC.; BERG COMPANIES, INC.; FLEXIBLE CONTAINMENT PRODUCTS, INC.
To: ROYAL BANK OF CANADA
Reel/Frame 056804/0211 →
RELEASE OF SECURITY INTEREST Recorded Jul 5, 2016
From: BLACKROCK CAPITAL INVESTMENT CORPORATION (F/K/A BLACKROCK KELSO CAPITAL CORPORATION)
To: HUNTER DEFENSE TECHNOLOGIES, INC.
Reel/Frame 039074/0124 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL (SECOND LIEN) Recorded Aug 6, 2014
From: JPMORGAN CHASE BANK, N.A. (AS SUCCESSOR TO BEAR STEARNS CORPORATE LENDING INC.), AS ADMINISTRATIVE AGENT
To: HUNTER DEFENSE TECHNOLOGIES, INC.; HDT EXPEDITIONARY SYSTEMS, INC. (FORMERLY KNOWN AS BASE-X, INC.); HDT TACTICAL SYSTEMS, INC. (FORMERLY KNOWN AS HUNTER MANUFACTURING COMPANY); HDT ROBOTICS, INC. (SUCCESSOR-IN-INTEREST TO KINEA DESIGN, L.L.C.); VERTIGO, INC.
Reel/Frame 033481/0458 →
SECURITY INTEREST Recorded Aug 6, 2014
From: HUNTER DEFENSE TECHNOLOGIES, INC.
To: BLACKROCK KELSO CAPITAL CORPORATION, AS SECOND LIEN ADMINISTRATIVE AGENT
Reel/Frame 033487/0649 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL (FIRST LIEN) Recorded Aug 6, 2014
From: JPMORGAN CHASE BANK, N.A. (AS SUCCESSOR TO BEAR STEARNS CORPORATE LENDING INC.), AS ADMINISTRATIVE AGENT
To: HUNTER DEFENSE TECHNOLOGIES, INC.; HDT EXPEDITIONARY SYSTEMS, INC. (FORMERLY KNOWN AS BASE-X, INC.); HDT TACTICAL SYSTEMS, INC. (FORMERLY KNOWN AS HUNTER MANUFACTURING COMPANY); HDT ROBOTICS, INC. (SUCCESSOR-IN-INTEREST TO KINEA DESIGN, L.L.C.); VERTIGO, INC.
Reel/Frame 033482/0422 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS (FIRST LIEN) Recorded Aug 5, 2014
From: HUNTER DEFENSE TECHNOLOGIES, INC.
To: SUNTRUST BANK, AS ADMINISTRATIVE AGENT
Reel/Frame 033473/0184 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Nov 11, 2013
From: HUNTER DEFENSE TECHNOLOGIES, INC.
To: BEAR STERANS CORPORATE LENDING INC., AS ADMINISTRATIVE AGENT
Reel/Frame 031611/0799 →
FIRST LIEN PATENT SECURITY AGREEMENT Recorded Nov 11, 2013
From: HUNTER DEFENSE TECHNOLOGIES, INC.
To: BEAR STERANS CORPORATE LENDING INC., AS ADMINISTRATIVE AGENT
Reel/Frame 031611/0501 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 23, 2012
From: CREED, JOHN L.
To: HUNTER DEFENSE TECHNOLOGIES, INC.
Reel/Frame 029175/0952 →