-
公开(公告)号：US20240118738A1
公开(公告)日：2024-04-11
申请号：US17961257
申请日：2022-10-06
Applicant: Google LLC
IPC: G06F1/329 , G06F1/3209
CPC classification number: G06F1/329 , G06F1/3209
Abstract: Systems and methods for managing power loads of one or more data centers using a wide-area energy controller to operate local energy resources of the data center based on power control information generated by a remote data center control system are described. In one aspect, a system includes a set of local energy sources configured to provide power to the loads of the energy system and a wide-area energy controller. The wide-area energy controller includes a first interface communicably coupled to an application programming interface (API) that connects a remote data center control system to respective wide-area energy controllers of multiple data centers, the first interface being configured to receive power control information from the remote data center control system via the API. The wide-area energy controller includes a control unit configured to schedule the local energy sources to provide power to the loads based on the power control information.
-
公开(公告)号：US12278590B2
公开(公告)日：2025-04-15
申请号：US17817535
申请日：2022-08-04
Applicant: Google LLC
Inventor： Krishnanjan Gubba Ravikumar , Angad Sandhu
Abstract: The present disclosure contemplates a method for synchronizing a large number of generators on an AC bus by synchronizing each generator's output to a nominal output that is generated from a common external source. For example, each generator, using a high speed communication signal, can synchronize to a nominal output provided by a master generator, or centralized command module. In another example, each generator can generate its own nominal output referenced to a common external time signal, such as a global positioning system (GPS) signal, or other reference. By synchronizing independently of bus voltage and frequency, the generators are able to synchronize in parallel, instead of serially.
-
公开(公告)号：US20240162742A1
公开(公告)日：2024-05-16
申请号：US17987081
申请日：2022-11-15
Applicant: Google LLC
Inventor： Sangsun Kim , Krishnanjan Gubba Ravikumar
CPC classification number: H02J9/062 , H02J3/0012 , H02J3/32 , H02J3/381 , H02J3/388 , H02J2300/20
Abstract: A system and method for power pooling, the system including a shared power line, a plurality of backup power supplies connected to the shared power line through respective transformers and one or more controllers configured to, for each respective backup power supply, after passage of a different respective predetermined amount of time, determine whether a transformer connected to the backup power supply is energized. In response to the transformer being energized, the controllers synchronize the backup power supply with the transformer and then set a switch positioned between the backup power supply and the transformer to a fully closed state. In response to the transformer not being energized, the controllers transition the switch from a fully open state to the fully closed state according to an inrush current limiting scheme.
-
公开(公告)号：US20240339863A1
公开(公告)日：2024-10-10
申请号：US18743943
申请日：2024-06-14
Applicant: Google LLC
Inventor： Sangsun Kim , Krishnanjan Gubba Ravikumar
CPC classification number: H02J9/062 , G01R19/02 , H02J3/0012
Abstract: Disclosed are devices, systems, and methods for operating a backup power source or an uninterruptible power supply (UPS) that can be used in data centers and that provide a backup power source to power the data center when utility power is compromised. A power delivery system that provides power to a primary system may include a UPS with a state timing control system that operates a bypass static switch. The state timing control system can determine when to transition the primary system from the utility power supply to the backup UPS, based on the current AC voltage conditions. The state timing control system may perform modeling to emulate the intermediate DC voltage of an actual rectifier, and particularly emulate the holdup capacitor voltage. The emulated capacitor voltage can be obtained in real time by both an input power model based on RMS utility voltage and the actual rectifier output load.
-
公开(公告)号：US12081064B2
公开(公告)日：2024-09-03
申请号：US17987081
申请日：2022-11-15
Applicant: Google LLC
Inventor： Sangsun Kim , Krishnanjan Gubba Ravikumar
CPC classification number: H02J9/062 , H02J3/0012 , H02J3/32 , H02J3/381 , H02J3/388 , H02J2300/20
Abstract: A system and method for power pooling, the system including a shared power line, a plurality of backup power supplies connected to the shared power line through respective transformers and one or more controllers configured to, for each respective backup power supply, after passage of a different respective predetermined amount of time, determine whether a transformer connected to the backup power supply is energized. In response to the transformer being energized, the controllers synchronize the backup power supply with the transformer and then set a switch positioned between the backup power supply and the transformer to a fully closed state. In response to the transformer not being energized, the controllers transition the switch from a fully open state to the fully closed state according to an inrush current limiting scheme.
-
Patent Agency Ranking
公开(公告)号：US20240195212A1
公开(公告)日：2024-06-13
申请号：US18078573
申请日：2022-12-09
Applicant: Google LLC
Inventor： Sangsun Kim , Krishnanjan Gubba Ravikumar
CPC classification number: H02J9/062 , G01R19/02 , H02J3/0012
Abstract: Disclosed are devices, systems, and methods for operating a backup power source or an uninterruptible power supply (UPS) that can be used in data centers and that provide a backup power source to power the data center when utility power is compromised. A power delivery system that provides power to a primary system may include a UPS with a state timing control system that operates a bypass static switch. The state timing control system can determine when to transition the primary system from the utility power supply to the backup UPS, based on the current AC voltage conditions. The state timing control system may perform modeling to emulate the intermediate DC voltage of an actual rectifier, and particularly emulate the holdup capacitor voltage. The emulated capacitor voltage can be obtained in real time by both an input power model based on RMS utility voltage and the actual rectifier output load.
-
公开(公告)号：US20240097588A1
公开(公告)日：2024-03-21
申请号：US17817535
申请日：2022-08-04
Applicant: Google LLC
Inventor： Krishnanjan Gubba Ravikumar , Angad Sandhu
Abstract: The present disclosure contemplates a method for synchronizing a large number of generators on an AC bus by synchronizing each generator's output to a nominal output that is generated from a common external source. For example, each generator, using a high speed communication signal, can synchronize to a nominal output provided by a master generator, or centralized command module. In another example, each generator can generate its own nominal output referenced to a common external time signal, such as a global positioning system (GPS) signal, or other reference. By synchronizing independently of bus voltage and frequency, the generators are able to synchronize in parallel, instead of serially.
-
公开(公告)号：US20250112467A1
公开(公告)日：2025-04-03
申请号：US18900030
申请日：2024-09-27
Applicant: Google LLC
Inventor： Kei Hao , Hammad Ahmad Khan , Krishnanjan Gubba Ravikumar
Abstract: The disclosed technology is directed to a power distribution architecture or network, and a protection and control scheme for the power distribution network. In one aspect of the disclosed technology, the backup generator bus is used as a tie between two independent power sources or mains used to supply electrical power to loads on the power distribution network. Another aspect of the disclosed technology is a protection scheme to detect and locate faults that may occur on the power distribution network. Another aspect of the disclosed technology is a control method or process for transferring loads from one source or main to another source or main in the event of planned or emergency transfers.
-
公开(公告)号：US20240396367A1
公开(公告)日：2024-11-28
申请号：US18795379
申请日：2024-08-06
Applicant: Google LLC
Inventor： Sangsun Kim , Krishnanjan Gubba Ravikumar
Abstract: A system and method for power pooling, the system including a shared power line, a plurality of backup power supplies connected to the shared power line through respective transformers and one or more controllers configured to, for each respective backup power supply, after passage of a different respective predetermined amount of time, determine whether a transformer connected to the backup power supply is energized. In response to the transformer being energized, the controllers synchronize the backup power supply with the transformer and then set a switch positioned between the backup power supply and the transformer to a fully closed state. In response to the transformer not being energized, the controllers transition the switch from a fully open state to the fully closed state according to an inrush current limiting scheme.
-
公开(公告)号：US12155323B2
公开(公告)日：2024-11-26
申请号：US17862015
申请日：2022-07-11
Applicant: Google LLC
Abstract: The present disclosure contemplates a method for synchronizing a large number of generators on an AC bus simultaneously by closing the generator breakers when the generators are rotating but de-energized. Then excitation is raised for each generator simultaneously, causing the generators to synchronize as voltage increases, without large transient current surges that can damage the machines. In order to safely maximize the rate at which excitation is raised, initial excitation can be controlled using current regulation, specifically controlling excitation current instead of voltage. Once a predetermined voltage is reached, a control scheme can be switched to a voltage regulation mode, which brings the generator to the final desired voltage.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.014 seconds)
