Intelligent power saving system

• US 8,489,249 B2
• Filed: 08/09/2010
• Issued: 07/16/2013
• Est. Priority Date: 08/09/2010
• Status: Active Grant

• Current Assignee: Phoenix Battery Corporation
• Original Assignee: Phoenix Silicon International Corporation
• Inventors: Chen, Chin-Chou
• Primary Examiner(s): Ali, Mohammad
• Assistant Examiner(s): Sivanesan, Sivalingam
• Application Number:
  US12/852,680
• Publication Number:
  US 20120035780A1
• Time in Patent Office: 1,072 Days
• Field of Search: 700/297
• US Class Current: 700/298
• CPC Class Codes: H02J 3/00 Circuit arrangements for ac mains or ac distribution networks
• CPC Class Codes: H02J 3/32 using batteries with converting means

Abstract

An intelligent power saving system, disposed between a Utility Power Supply and at least a load, comprising: at least an energy storage device; at least a power supply line, connected to said Utility Power Supply and said load; at least an energy-storage-device-parallel-connection circuit, connecting said energy storage device electrically to said power supply line; and a power monitor, connected electrically to said Utility Power Supply, said energy storage device, and said energy-storage-device-parallel-connection circuit, thus determining whether said energy storage device is required to join in providing power to said load through said energy-storage-device-parallel-connection circuit, thus regulating percentage of total power supplied by said Utility Power Supply, preventing overload of said Utility Power Supply, hereby saving expense of the electric utility bills.

Claims

1. An intelligent power saving system, disposed between a Utility Power Supply and at least a load, comprising:

at least an energy storage device;

at least a power supply line, connected to said Utility Power Supply and said load, said Utility Power Supply providing a predetermined amount of power;

at least an energy-storage-device-parallel-connection circuit connecting said energy storage device electrically to said power supply line; and

a power monitor connected electrically to said Utility Power Supply, said energy storage device, and said energy-storage-device-parallel-connection circuit, said power monitor configured to;

determine whether amount of power utilized by said load is equal to or greater than said predetermined amount of power;

determine whether said energy storage device has stored power equal to or greater than said predetermined amount of power;

apply stored power from said energy storage device to said load when said stored power is greater than or equal to said predetermined amount of power; and

provide power from said Utility Power Supply to said load when said stored power in said energy storage device is less than said predetermined amount of power.

2. The intelligent power saving system as claimed in claim 1, wherein when said power monitor detects that power supplied by said Utility Power Supply reaches said predetermined amount of power, said power monitor regulates voltage of said energy storage device, so as to regulate percentage of total power supplied by said Utility Power Supply, thereby avoiding exceeding a contract capacity of a user over said predetermined amount of power.

3. The intelligent power saving system as claimed in claim 2, wherein said predetermined amount of power is said contract capacity signed with a Power Company.

4. The intelligent power saving system as claimed in claim 1, wherein said energy storage device is a LiFeP battery.

5. The intelligent power saving system as claimed in claim 1, wherein when said Utility Power Supply is in an off-peak period during which said energy storage device is charged.

6. The intelligent power saving system as claimed in claim 5, wherein said Utility Power Supply proceeds with charging of said energy storage device through said power supply line and said energy-storage-device-parallel-connection circuit.

7. The intelligent power saving system as claimed in claim 1, wherein when a plurality of said loads are provided, number of said energy storage devices and number of said energy-storage-device-parallel-connection circuits are varied depending on number of said loads, such that each load is connected to said energy storage device in parallel.

8. The intelligent power saving system as claimed in claim 1, wherein said power monitor monitors if said energy storage device is functioning normally.