Power conversion system and filter therefor

A power conversion system, comprising:

• a rectifier, including a rectifier input configured to receive a rectifier AC input signal, and a rectifier output configured to provide a DC output signal to a DC bus circuit;
• an inverter, including a DC input coupled with the DC bus circuit, an inverter output, and a plurality of inverter switching devices coupled between the DC input and the inverter output and configured to provide an inverter output signal at the inverter output to directly or indirectly drive a load;
• and
• a filter, including:
• a filter input, including a plurality of filter input terminals,
• a filter output, including a plurality of filter output terminals coupled with the rectifier input,
• a plurality of conductive busbars individually including a first end connected to a corresponding one of the plurality of filter input terminals, and a second end connected to a corresponding one of the plurality of filter output terminals,
• a first capacitor circuit, including a plurality of first capacitors individually coupled between a first common connection and a corresponding one of the busbars at a first location proximate the plurality of filter input terminals,
• a first inductor circuit, including a plurality of first common mode cores that individually extend around the plurality of busbars at a second location between the first location and the second end of the busbars,
• a second capacitor circuit, including a plurality of second capacitors individually coupled between a second common connection and a corresponding one of the busbars at a third location between the second location and the second end of the busbars,
• a second inductor circuit, including a plurality of second common mode cores that individually extend around the busbars at a fourth location between the third location and the second end of the busbars,
• a third capacitor circuit, including a plurality of third capacitors individually coupled between a third common connection and a corresponding one of the busbars at a fifth location between the fourth location and the second end of the busbars, and
• a fourth capacitor circuit, including a plurality of fourth capacitors individually coupled between a fourth common connection and a corresponding one of the busbars at the fifth location.