Systems and methods for variable speed operation of combustion engines

摘要

Certain embodiments of the disclosure may include systems and methods for variable speed operation of combustion engines. According to an example embodiment of the disclosure, a method is provided for controlling the operation of the combustion engine. The method can include providing power from a power source to a converter; providing frequency variable power to a generator from the converter; accelerating the generator and associated turbine to a predetermined speed by modulating the frequency variable power from the converter; after a predetermined turbine speed is achieved, disconnecting power supplied to the generator by the converter; and modulating the subsequent operation of the generator using power from the converter.

主权项

1. A method for variable speed operation of a combustion engine, the method comprising:
providing power from a power source to a converter; providing frequency variable power to a generator from the converter; accelerating the generator and an associated turbine to a predetermined speed by modulating the frequency variable power from the converter; after a predetermined turbine speed is achieved, disconnecting power supplied to the generator by the converter, while the turbine continues to accelerate the generator; and after the generator has reached nominal speed, reconnecting the converter such that modulating speed in subsequent operation of the generator is using power from the converter; wherein the generator is protected from overvoltage using a crowbar mechanism by short-circuiting the power from the converter when the frequency variable power exceeds a predetermined value.