Compact design of multilevel power converter systems
AssigneeGeneral Electric Company
InventorsMark Dame, Jiangbiao He, Di Zhang
Life of this patent
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Abstract
In an embodiment, a three-level active neutral-point clamped (ANPC) converter system is provided. The system includes first and second Direct Current (DC)-bus structures that include at least one of a number of DC-bus capacitors on printed circuit boards (PCBs). The PCBs are laminated together with an air gap (e.g., one or more millimeters) in between for a thermal dissipation and an insulation creepage. The three DC-bus terminals include PCBs, and are electrically connected to the three-level power converter, which are typically mounted on a heatsink or a cold plate.
Claims20
A three-level active neutral-point clamped (ANPC) converter system comprising:
- first and second Direct Current (DC)-bus structures comprising at least one of a number of DC-bus capacitors printed circuit boards (PCBs);
- the PCBs are laminated together with an air gap in between for a thermal dissipation and an insulation creepage;
- and
- three DC-bus terminals that include PCBs, and are electrically connected to a three-level power converter, wherein the three-level power converter is mounted on a heatsink or a cold plate.
A method to manufacture a three-level active neutral-point clamped (ANPC), comprising:
- providing first and second DC-bus structures that are configured to reduce a voltage stress of the power components;
- and
- positioning the printed circuit boards (PCBs) to be separated by an air gap configured to provide an air flow between the PCBs.
A three-level active neutral-point clamped (ANPC), comprising:
- first and second Direct Current (DC)-bus structures comprising at least one of a number of DC-bus capacitors on printed circuit boards (PCBs);
- the PCBs are laminated together with an air gap in between for a thermal dissipation and an insulation creepage;
- and
- three DC-bus terminals that include PCBs, and are electrically connected to a three-level power converter, wherein the three-level power converter is mounted on a heatsink or a cold plate.
Dependencies are inferred from the claim text.