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A starting/generating system includes a rotor portion and a stator portion. The stator portion is connected to a DC power source during starting operations and to a DC load during generating operations, and includes a DC link having a first and second DC link bus, a DC link capacitor connected betwe

A starting/generating system includes a rotor portion and a stator portion. The stator portion is connected to a DC power source during starting operations and to a DC load during generating operations, and includes a DC link having a first and second DC link bus, a DC link capacitor connected between the DC link buses, and an inverter/rectifier that converts AC power to DC power and vice versa. A switching device is connected in series on the first DC link bus and is controlled by a controller that turns the switching device On and Off to provide various functionality to the starting/generating system.

대표청구항 ▼

1. A starting/generating system comprising: a rotor portion;a stator portion located to interact with the rotor portion, and for connecting to a DC power source during starting operations and to a DC load during generating operations, the stator portion comprising: a DC link having a first DC link b

1. A starting/generating system comprising: a rotor portion;a stator portion located to interact with the rotor portion, and for connecting to a DC power source during starting operations and to a DC load during generating operations, the stator portion comprising: a DC link having a first DC link bus and a second DC link bus;a DC link capacitor connected between the first DC link bus and the second DC link bus;an inverter/rectifier connected to convert DC power to AC power during starting operations and to convert AC power to DC power during generating operations;a switching device connected in series on the first DC link bus; anda controller connected to control the state of the switching device, wherein the controller selectively controls the state of the switching device to provide various functionality depending on the operating state of the starting/generating system. 2. The starting/generating system of claim 1, wherein the controller modulates the state of the switching device to limit in-rush currents during pre-charging of the DC link capacitor. 3. The starting/generating system of claim 2, wherein the controller selectively controls the modulation of the switching device based on at least one monitored parameter selected from the group consisting of: DC link voltage, DC link current, DC link capacitor current, and a combination thereof. 4. The starting/generating system of claim 1, wherein the controller turns the switching device ON to enable power flow from the DC power source to the inverter/rectifier during starting operations. 5. The starting/generating system of claim 1, wherein the controller turns the switching device OFF to disable power flow from the DC power source to the inverter/rectifier in response to DC voltage provided by the starting/generating system exceeds the DC voltage provided by the DC power source. 6. The starting/generating system of claim 1, wherein during generating operations the stator portion is connectable to a battery such that DC power generated by the inverter/rectifier provides charging power to the battery, wherein the controller modulates the state of the switching device during the generating mode to generate a desired current profile for charging the battery. 7. The starting/generating system of claim 1, wherein in response to a detected fault condition during generating operations, the controller turns the switching device OFF.