Patent ID: 7847424
Filing Date: 2010-12-07
Classification: F01K,H02P

Abstract:
1. In an electrical power system of a diesel powered system having at least one diesel-fueled power generation unit, the electrical power system being configurable in a starting mode for cranking the diesel fueled power unit, the electrical power system having a synchronous machine including a field winding being coupled to the diesel-fueled power generation unit, a battery for selectively providing a starting current during a starting mode of the electrical power system, and an inverter receiving the starting current for driving the synchronous machine and generating an inverter current, a circuit for reducing a voltage being developed across the field winding comprising: a current conditioner for conditioning the inverter current; and a parallel circuit interposed in series between the inverter and the current conditioner comprising a first branch including a resistance and a second branch including the field winding of the synchronous machine so that the parallel circuit is isolated from a voltage developed across the current conditioner during cranking; wherein by being interposed in series the parallel circuit is isolated from a voltage developed across the current conditioner.