US 11,859,589 B2
Direct current power plant
Andrew A. Schnellinger, Merrimack, NH (US); James R. Lowell, Goffstown, NH (US); Bryan A. Finseth, Newbury, NH (US); Christopher L. Barber, Exeter, RI (US); Jason M. Sachs, Chandler, AZ (US); Donald J. Lucas, Windham, NH (US); Shannon Prescott, Loudon, NH (US); Jeffrey W. Kite, Manchester, NH (US); Andras K. Fekete, Fremont, NH (US); and Douglas R. Adams, Pepperell, MA (US)
Assigned to DEKA Products Limited Partnership, Manchester, NH (US)
Filed by DEKA Products Limited Partnership, Manchester, NH (US)
Filed on May 19, 2022, as Appl. No. 17/748,458.
Application 17/748,458 is a division of application No. 16/990,140, filed on Aug. 11, 2020, granted, now 11,339,758.
Application 16/990,140 is a division of application No. 16/243,846, filed on Jan. 9, 2019, granted, now 10,760,541, issued on Sep. 1, 2020.
Application 16/243,846 is a division of application No. 15/182,147, filed on Jun. 14, 2016, granted, now 10,215,146, issued on Feb. 26, 2019.
Claims priority of provisional application 62/188,240, filed on Jul. 2, 2015.
Claims priority of provisional application 62/182,182, filed on Jun. 19, 2015.
Prior Publication US 2022/0275781 A1, Sep. 1, 2022
Int. Cl. F02N 11/08 (2006.01); F02G 1/043 (2006.01); F24D 11/00 (2022.01); H02J 1/10 (2006.01)
CPC F02N 11/0859 (2013.01) [F02G 1/043 (2013.01); F02N 11/0866 (2013.01); F24D 11/00 (2013.01); H02J 1/10 (2013.01); F02G 2275/40 (2013.01); F02N 2011/0885 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for starting an engine comprising:
receiving first power from a first AC power supply;
receiving second power from a second AC power supply;
starting the engine by using the first power and a capacitor bank;
starting system control electronics by using the second power;
controlling, by the system control electronics, a power control board; and
controlling, by the power control board, the engine;
providing output from the engine to a permanent magnet synchronous motor generator (PMSMG) operably coupled to the engine;
producing AC power from the output of the PMSMG generator;
coupling a motor drive power board with the PMSMG generator, the motor drive power board converting the AC power to DC power, the PMSMG and the motor drive power board controlling a velocity of the engine;
coupling an arc fault detector to a DC output breaker;
shunt tripping, by the ARC fault detector, the DC output breaker during an arc fault condition; and
providing, by the DC output breaker, the DC power to an electric grid when at least one of a set of pre-selected conditions is false.