Patents Assigned to Cummins Power Generation Inc.
  • Publication number: 20230208328
    Abstract: Systems and apparatuses include a circuit structured to: identify a first source object, a second source object, and a load bus object; determine locations of the first source object, the second source object, and the load bus object on a one-line topology; receive operational parameters of the first source object, the second source object, and the load bus object; define, using the one-line topology, a first route including objects electrically connected between the first source object and the load bus object; define, using the one-line topology, a second route including all objects electrically connected between the second source object and the load bus object; and control operation of the first route and the second route.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: Cummins Power Generation Inc.
    Inventors: Kevin J. Aufderhar, Paul R. Dahlen, Dennis G. McDonald
  • Patent number: 11674491
    Abstract: Systems and methods of providing fault protection on direct current (DC) feeds to various engine or generator set components are provided. In some embodiments, generator set includes a ground fault device arranged between a DC power distribution circuit and a subsystem of the generator set. The ground fault device is configured to detect a fault condition based on a comparison of a first current in a first wire with a second current in a second wire between the DC power distribution circuit and the subsystem. In response to detecting the fault condition, the ground fault device is configured to disconnect the subsystem.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: June 13, 2023
    Assignee: Cummins Power Generation Inc.
    Inventors: Lane Woodland, Randall J. Johnson, Sagar Sharma, Elias M. Ayana, Michael Fegley
  • Patent number: 11626752
    Abstract: Systems and apparatuses include a first controller structured to control a first power system object located on a first route of a power system, and a second controller structured to control a second power system object located on a second route of the power system. The first controller and the second controller are both structured to perform a route level function including coordination of actions of the first power system object and the second power system object, and the first controller is a principal controller and the second controller is a participant controller.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 11, 2023
    Assignee: Cummins Power Generation Inc.
    Inventors: Kevin J. Aufderhar, Paul R. Dahlen, Dennis G. McDonald, Gordon J. Keller
  • Patent number: 11591954
    Abstract: A genset enclosure includes a frame system, a plurality of side panels, a plurality of roof panels, a first connector, and a second connector. The frame system includes a plurality of interconnected frame members. The plurality of side panels are coupled to opposing sides of the frame system. The plurality of roof panels are coupled to a roof of the frame system and extend between the opposing sides of the frame system. The plurality of roof panels are oriented perpendicular to the plurality of side panels. The frame system, the plurality of side panels, and the plurality of roof panels together define an enclosure portion having a first open end and a second open end. The first connector and second connector are engageable with one another and are coupled to the frame system along a perimeter of the first open end and the second open end, respectively.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: February 28, 2023
    Assignee: Cummins Power Generation Inc.
    Inventor: Shashikant Ramdas More
  • Patent number: 11557994
    Abstract: Systems and apparatuses include a circuit structured to: identify a first source object, a second source object, and a load bus object; determine locations of the first source object, the second source object, and the load bus object on a one-line topology; receive operational parameters of the first source object, the second source object, and the load bus object; define, using the one-line topology, a first route including objects electrically connected between the first source object and the load bus object; define, using the one-line topology, a second route including all objects electrically connected between the second source object and the load bus object; and control operation of the first route and the second route.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: January 17, 2023
    Assignee: Cummins Power Generation Inc.
    Inventors: Kevin J. Aufderhar, Paul R. Dahlen, Dennis G. McDonald
  • Publication number: 20230012380
    Abstract: Systems and methods of providing fault protection on direct current (DC) feeds to various engine or generator set components are provided. In some embodiments, generator set includes a ground fault device arranged between a DC power distribution circuit and a subsystem of the generator set. The ground fault device is configured to detect a fault condition based on a comparison of a first current in a first wire with a second current in a second wire between the DC power distribution circuit and the subsystem. In response to detecting the fault condition, the ground fault device is configured to disconnect the subsystem.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 12, 2023
    Applicant: Cummins Power Generation Inc.
    Inventors: Lane Woodland, Randall J. Johnson, Sagar Sharma, Elias M. Ayana, Michael Fegley
  • Patent number: 11519315
    Abstract: Systems and apparatuses include a selective catalytic reduction system structured to receive exhaust gases from a dual fuel engine system and include a diesel exhaust fluid dosing unit, an ammonia slip catalyst positioned directly downstream of the selective catalytic reduction catalyst, an oxidation catalyst positioned directly downstream of the ammonia slip catalyst, and one or more processing circuits. The circuits receive a system out NOx value, a space velocity, an ammonia to NOx ratio, an exhaust temperature, a substitution rate, and a conversion efficiency target. The circuits determine a conversion efficiency differential, adjust the substitution rate based on the system out NOx value, adjust the ammonia to NOx ratio based on the space velocity, the ammonia to NOx ratio, the exhaust temperature, the substitution rate, the conversion efficiency target, and the conversion efficiency differential, and determine a diesel exhaust fluid dosing rate for the diesel exhaust fluid dosing unit.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: December 6, 2022
    Assignee: Cummins Power Generation Inc.
    Inventors: Ankit Sakuja, Srinivas Chakravarthy Bathula
  • Patent number: 11522478
    Abstract: Systems and methods for regulating transient deviations in an output voltage of a power generator system are provided. An automatic voltage regulator (AVR) may receive a predictive load signal from a load. The predictive load signal may relate to an anticipated change in the load. The predictive load signal can be configured to include information of the anticipated change in the load. The AVR may extract the information of the anticipated change in the load from the predictive load signal, responsive to receiving the predictive load signal. The AVR may analyze the extracted information to determine whether the anticipated change causes a transient deviation above a predetermined level in the output voltage. The AVR may adjust an excitation current of an alternator prior to detecting a difference between a voltage setpoint and the output voltage, responsive to determining that the anticipated change in the load causes the transient deviation.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: December 6, 2022
    Assignee: Cummins Power Generation Inc.
    Inventor: Kai Wang
  • Patent number: 11506100
    Abstract: Systems and apparatuses include a diesel exhaust fluid tank, a first temperature sensor positioned within the diesel exhaust fluid tank and structured to provide first temperature information indicative of a first temperature, and a second temperature sensor positioned within the diesel exhaust fluid tank and structured to provide second temperature information indicative of a second temperature. The systems and apparatuses further include one or more processing circuits including one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to provide energy to a heating system based on the first temperature information and the second temperature information.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: November 22, 2022
    Assignee: Cummins Power Generation Inc.
    Inventors: Shawn Aaron Rockey, Lorraine H. Myers, Matthew Richard Hudson, Kyle David Richart, Corey James Fletcher, Daniel Joseph Motz
  • Patent number: 11401905
    Abstract: Systems and apparatuses include an alternator including a stator and a rotor structured to be coupled to a crankshaft of a prime mover, and processing circuits structured to: determine a crankshaft position, associate a crankshaft timestamp with the crankshaft position, determine a stator voltage waveform position, associate a stator voltage waveform timestamp with the stator voltage waveform position, determine a common time base using the crankshaft timestamp and the stator voltage waveform timestamp, determine a rotor position based on the crankshaft position and associated with the common time base, determine a load angle based on the rotor position and the stator voltage waveform position using the common time base, compare the load angle to a stability limit, and transmit a predicted pole slip signal to at least one of the prime mover or the alternator to inhibit a pole slip event when the load angle exceeds the stability limit.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: August 2, 2022
    Assignee: Cummins Power Generation Inc.
    Inventors: Sandeep Kor, Dennis McDonald
  • Patent number: 11387744
    Abstract: A system comprising a controllable alternating current power source; an active rectifier coupled to the controllable alternating current power source and configured to rectify an output of the controllable alternating current power source to supply a direct current to a load; and a controller configured to adjust at least one of a parameter of the controllable alternating current power source and a parameter of the active rectifier in response to a target output.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: July 12, 2022
    Assignee: Cummins Power Generation, Inc.
    Inventors: Elias M. Ayana, Brad K. Palmer
  • Publication number: 20220140750
    Abstract: Systems and methods for increasing the efficiency of inverters are provided. In some embodiments, an inverter may be configured to connect to a direct current power source and output alternating current power. The inverter may include one or more transistors configured to receive a direct current signal and output a pulse width modulated signal having a particular switching frequency or spread spectrum frequencies. The inverter also includes a low pass filter having multiple elements where each of the multiple elements have parasitic characteristics. One or more of the multiple elements may be designed such that the frequency response has a notch or a minimum at the switching frequency while having a desired cutoff frequency.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 5, 2022
    Applicant: Cummins Power Generation Inc.
    Inventors: Veda Samhitha Duppalli, Lane Lester Woodland, Vineet K. Pandey
  • Publication number: 20220127988
    Abstract: Systems and apparatuses include a diesel exhaust fluid tank, a first temperature sensor positioned within the diesel exhaust fluid tank and structured to provide first temperature information indicative of a first temperature, and a second temperature sensor positioned within the diesel exhaust fluid tank and structured to provide second temperature information indicative of a second temperature. The systems and apparatuses further include one or more processing circuits including one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to provide energy to a heating system based on the first temperature information and the second temperature information.
    Type: Application
    Filed: October 22, 2021
    Publication date: April 28, 2022
    Applicant: Cummins Power Generation Inc.
    Inventors: Shawn Aaron Rockey, Lorraine H. Myers, Matthew Richard Hudson, Kyle David Richart, Corey James Fletcher, Daniel Joseph Motz
  • Publication number: 20220098886
    Abstract: A genset enclosure includes a skid platform, a plurality of gusset members, a plurality of roof supports, and a first and second plurality of sidewall panels. The gusset members are spaced along an outer perimeter of the skid platform and are coupled to the skid platform using fasteners. The gusset members are arranged in opposed pairs positioned on opposite lateral ends of the skid platform. Each gusset member defines a first portion extending upwardly from the skid platform normal to an upper surface of the skid platform and a second portion disposed at an upper end of the first portion and extending normal to the first portion and toward a centerline of the skid platform. The gusset members support the plurality of roof supports and the first and second plurality of sidewall panels to form an enclosed volume.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 31, 2022
    Applicant: Cummins Power Generation Inc.
    Inventors: Shashikant Ramdas More, Atin Tandon, Abdullah Caner Demirdogen
  • Publication number: 20220085604
    Abstract: Systems and methods for managing power on supplied to a load are provided. In some embodiments, a hybrid power system includes a generator and a power source having an inverter connected to one or more loads. The generator may have a controller that is configured to adjust a parameter (e.g., frequency) of electrical power output via the generator based on a current magnitude of electrical power output of the generator. The inverter is configured to detect the parameter of the electrical power supplied to the load and to adjust a magnitude of current electrical power output based on the detected parameter.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 17, 2022
    Applicant: Cummins Power Generation Inc.
    Inventor: Prasanna S. Nirantare
  • Publication number: 20220056865
    Abstract: Systems and apparatuses include an alternator including a stator and a rotor structured to be coupled to a crankshaft of a prime mover, and processing circuits structured to: determine a crankshaft position, associate a crankshaft timestamp with the crankshaft position, determine a stator voltage waveform position, associate a stator voltage waveform timestamp with the stator voltage waveform position, determine a common time base using the crankshaft timestamp and the stator voltage waveform timestamp, determine a rotor position based on the crankshaft position and associated with the common time base, determine a load angle based on the rotor position and the stator voltage waveform position using the common time base, compare the load angle to a stability limit, and transmit a predicted pole slip signal to at least one of the prime mover or the alternator to inhibit a pole slip event when the load angle exceeds the stability limit.
    Type: Application
    Filed: August 23, 2021
    Publication date: February 24, 2022
    Applicant: Cummins Power Generation Inc.
    Inventors: Sandeep Kor, Dennis McDonald
  • Publication number: 20210404378
    Abstract: A genset enclosure includes a frame system, a plurality of side panels, a plurality of roof panels, a first connector, and a second connector. The frame system includes a plurality of interconnected frame members. The plurality of side panels are coupled to opposing sides of the frame system. The plurality of roof panels are coupled to a roof of the frame system and extend between the opposing sides of the frame system. The plurality of roof panels are oriented perpendicular to the plurality of side panels. The frame system, the plurality of side panels, and the plurality of roof panels together define an enclosure portion having a first open end and a second open end. The first connector and second connector are engageable with one another and are coupled to the frame system along a perimeter of the first open end and the second open end, respectively.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 30, 2021
    Applicant: Cummins Power Generation Inc.
    Inventor: Shashikant Ramdas More
  • Patent number: 11174822
    Abstract: A compressor bypass reintroduction system includes a compressor intake manifold and a bypass conduit. The compressor intake manifold defines a fluid plenum. The compressor intake manifold is engageable with a compressor. The bypass conduit extends into the fluid plenum and includes an ejector line. The ejector line is configured to be substantially collinear with the compressor and to discharge flow toward the compressor. In some embodiments, an outlet of the ejector is disposed proximate to an outlet of the fluid plenum that discharges flow into the compressor.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: November 16, 2021
    Assignee: Cummins Power Generation Inc.
    Inventors: Jeremy A. Lackey, Alan C. Anderson, Joshua Bradley Bettis, Steven L. Leffler, Dilip Ramachandran, John A. Rennekamp, Axel O. Zur Loye, Andrew Guy Kitchen, George Martin Tolhurst
  • Publication number: 20210234399
    Abstract: Systems and apparatuses include a first controller structured to control a first power system object located on a first route of a power system, and a second controller structured to control a second power system object located on a second route of the power system. The first controller and the second controller are both structured to perform a route level function including coordination of actions of the first power system object and the second power system object, and the first controller is a principal controller and the second controller is a participant controller.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 29, 2021
    Applicant: Cummins Power Generation Inc.
    Inventors: Kevin J. Aufderhar, Paul R. Dahlen, Dennis G. McDonald, Gordon J. Keller
  • Publication number: 20210234369
    Abstract: Systems and apparatuses include a non-transitory computer readable media having computer-executable instructions embodied therein that, when executed by a circuit of a power system, causes the power system to perform functions to activate and deactivate routes.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 29, 2021
    Applicant: Cummins Power Generation Inc.
    Inventors: Kevin J. Aufderhar, Paul R. Dahlen, Dennis G. McDonald