Uninterruptible power supply system

• US 9,906,075 B2
• Filed: 05/04/2015
• Issued: 02/27/2018
• Est. Priority Date: 05/16/2014
• Status: Active Grant

• Current Assignee: KS Research SA
• Original Assignee: KS Research SA
• Inventors: Schoebrechts, Jacques Jean, Pire, Stphane Ernest
• Primary Examiner(s): Perez Borroto, Alfonso
• Application Number:
  US14/703,882
• Publication Number:
  US 20150333570A1
• Time in Patent Office: 1,030 Days
• Field of Search: 307 68
• CPC Class Codes: H02J 9/066 characterised by the use of dynamo-electric machines H02J9/08 takes precedence
• CPC Class Codes: H02K 7/025 for power storage
• CPC Class Codes: Y02E 60/16 Mechanical energy storage, e.g. flywheels or pressurised fluids

Abstract

A dynamic uninterruptible power supply system including a synchronous machine with two shaft ends inserted between two kinetic energy accumulators for doubling the unit capacity is provided.

Claims

1. A dynamic uninterruptible power supply system, comprising:

a synchronous machine with two shaft ends inserted between two kinetic energy accumulators for doubling unit capacity, said kinetic energy accumulators each comprising a rotating mass, said synchronous machine further comprising;

an autonomous connection system for exchanging and correcting, in real time, speed of rotation of the rotating masses of the two kinetic energy accumulators.

2. The dynamic uninterruptible power supply system of claim 1, further comprising couplings configured to create a link between shafts of said two kinetic energy accumulators and said synchronous machine.

3. The dynamic uninterruptible power supply system of claim 1, wherein a casing of said synchronous machine is attached at two ends to casings of said two kinetic energy accumulators, and wherein said casings of said two kinetic energy accumulators are mounted on a common frame.

4. The dynamic uninterruptible power supply system of claim 1, wherein said autonomous connection system comprises an inductor and two circuit breakers, wherein a first of said two circuit breakers is configured to interrupt a connection of said synchronous machine with an electrical network, and wherein a second of said two circuit breakers is configured to maintain a connection between said synchronous machine and a critical load to be supplied without interruption.

5. The dynamic uninterruptible power supply system of claim 4, wherein the autonomous connection system exchanges and corrects the speeds of the rotating masses of the two kinetic energy accumulators whenever there is a reduction in speed of any of the rotating masses, and wherein the autonomous connection system brings back the rotating masses of the two kinetic energy accumulators to an identical speed to suitably maintain power distribution between the two kinetic energy accumulators for avoiding premature discharge of either of the two kinetic energy accumulators.

6. The dynamic uninterruptible power supply system of claim 4, further comprising a source inverter configured to switch between said electrical network and a diesel motor generator unit to provide dynamic power with no long lasting interruption.

7. The dynamic uninterruptible power supply system of claim 4, further comprising a voltage boosting transformer inserted between said synchronous machine and said autonomous connection system.

8. The dynamic uninterruptible power supply system of claim 1 connected in parallel to another one or more dynamic uninterruptible power supply systems to achieve greater capacities.