Patent ID: 11876379
Assignee: INNIO JENBACHER GMBH & CO OG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC H  F | IPC F  H

Claim 9:
10. A non-transitory computer readable medium comprising instructions that when executed cause a processor to:
actuate an internal combustion engine for mechanically driving a generator with a generator rotary speed corresponding to a generator frequency,
control the internal combustion engine such that the generator frequency is in a tolerance range, wherein a grid frequency of a power supply grid is within the tolerance range,
receive or calculate at least one detection signal corresponding to a phase angle difference (Δφ) between a current and/or a voltage generated by the generator and a grid current and/or a grid voltage to obtain a detected phase angle difference (Δφ),
actuate at least one temporary change in one or more parameters of the internal combustion engine, based on the detected phase angle difference (Δφ), for synchronizing the voltage and/or the current with the grid voltage and/or the grid current to reduce the phase angle difference (Δφ), and the at least one temporary change in the one or more parameters comprises at least one temporary change in an ignition timing (ttemp) relative to a predetermined nominal ignition timing (tnom) of at least one cylinder unit of the internal combustion engine, wherein synchronizing comprises repeatedly switching from the predetermined nominal ignition timing (tnom) to the ignition timing (ttemp) and vice-versa a plurality of times until the phase angle difference (Δφ) is reduced to meet a phase angle tolerance range, wherein the plurality of times of the switching comprises at least five times, wherein the switching holds the ignition timing (ttemp) for less than 0.2 seconds for each of the plurality of times, and
output a trigger signal for electrically connecting the generator to the power supply grid.