A method and system to automatically restart a permanent magnet turbogenerator/motor when a fatal fault is detected. The automatic restart logic includes time constraints and limitations on the number of iterations, and is useful regardless of whether the permanent magnet turbogenerator/motor is in a grid connect mode or a standalone mode, and regardless of how the fatal fault originates or is detected. Additional control logic is utilized to handle grid transients and over load conditions to prevent a fatal fault from occurring by using time constraints and an iterative process, together with a brake resistor to control DC bus voltage.

Claims

9 · 8 independent · depth 2

9 granted claims

›1.independentA permanent magnet turbogenerator/motor restarting system, comprising: means for determining that the permanent magnet turbogenerator/motor has a fata…

›2.independentA permanent magnet turbogenerator/motor restarting system, comprising: means for determining that the permanent magnet turbogenerator/motor has a fata…

›3.independentA permanent magnet turbogenerator/motor restarting system, comprising: means for determining that the permanent magnet turbogenerator/motor has a fata…

›4.independentA permanent magnet turbogenerator/motor restarting system, comprising: means for determining that the permanent magnet turbogenerator/motor has a fata…

›5.independentA permanent magnet turbogenerator/motor restarting system, comprising: means for determining that the permanent magnet turbogenerator/motor has a fata…

›6.independentA permanent magnet turbogenerator/motor restarting system, comprising: means for determining that the permanent magnet turbogenerator/motor has a fata…

›7.independentA permanent magnet turbogenerator/motor restarting system, comprising: means for determining that the permanent magnet turbogenerator/motor has a fata…

›8.independentA permanent magnet turbogenerator/motor restarting system, comprising: means for determining that the permanent magnet turbogenerator/motor has a fata…+1

Classifications

3 codes

IPC · International Patent Classification

Section F — Mechanical engineering; lighting; heating; weapons

F02N1/100

USPC · US Patent Classification

290/52290/40.C

Claim changes

Soon

Coming soonHow the claims changed between publication and grant

See which claims were amended, added or cancelled during examination, with every added and removed word marked.

AmendedAddedCancelledUnchanged

The published claims of this patent are not paired with the granted ones in what we hold.

File wrapper

⤢ drag to zoom

USPTOApplicanthover for detail · click to open

Pendency

1.6 y

571 days filing → grant

Office actions

none on record

Responses

1 RCE

Examiner

Nicholas Ponomarenko

art unit —

Law firm

Law firm · Log in to unlock

Citations: 36 back · 1 forward

See the full prosecution history — every USPTO and applicant action on this file, in order.

Chain of title

See the full assignment history — every owner this patent has passed through, with recordation dates and reel/frame numbers.

Term & fees

See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.

Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20020005643 A1	17 Jan 2002

Validity challenges

See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.

Citations

See every patent this one cites and every patent that cites it back — publication, assignee, and how each one was found.