Abstract: A synchronous brushless machine having a single exciter field stator winding. The single exciter field stator winding is energized by a high frequency alternating current to provide a single excitation field to magnetically couple with the exciter field armature winding in both the starter mode and the generator mode. With a higher excitation frequency relative to the main armature current frequency, a steady main field voltage can be achieved which improves stability control while in the starter mode. In one or more configurations, the single exciter field stator winding is driven by a H-bridge converter.

Abstract: A synchronous brushless machine having a single exciter field stator winding. The single exciter field stator winding is energized by a high frequency alternating current to provide a single excitation field to magnetically couple with the exciter field armature winding in both the starter mode and the generator mode. With a higher excitation frequency relative to the main armature current frequency, a steady main field voltage can be achieved which improves stability control while in the starter mode. In one or more configurations, the single exciter field stator winding is driven by a H-bridge converter.

Abstract: The present disclosure provides a system, method, and apparatus for battery thermal management. In one or more embodiments, the disclosed method involves sensing, with at least one temperature sensor, a temperature of at least one battery cell, where at least one battery cell is at least partially submerged within a liquid contained within a battery case. The method further involves comparing the temperature of at least one battery cell with a maximum threshold temperature, and commanding a cooling unit to be activated when at least one processor determines that the temperature of at least one battery cell is above the maximum threshold temperature. Further, the method involves circulating, by at least one pump, the liquid via tubing from the battery case to the cooling unit back to the battery case.

Abstract: A power electronics and control architecture for powering an AC load from a multi-source power system through a single conversion stage is disclosed. A controllable DC-to-AC inverter accepts a DC output voltage range from a DC power source at a DC input, and outputs an adjustable AC at an AC output. A sensor measures an output power of the DC power source to obtain a measured output power, and a processor sets a power level at the DC input based on the measured output power. The processor sets the power level to control the output power of the DC power source, and synchronizes the adjustable AC to a common AC output of the multi-source power system.