Back to results
US 2026/0302964 A1Published application
Power electronic building block for modular multilevel converters
AssigneeHitachi Energy Ltd
InventorsGeorgios STAMATIOU, Aravind MOHANAVEERAMAN
Life of this patent
Estimating the term…
Abstract
A power electronic building block is provided, including capacitors, switch modules, a busbar arrangement, and at least one AC busbar. Connection points of the at least one AC busbar are arranged symmetrically along a first direction with respect to a plane perpendicularly intersecting the first direction, and the at least one AC busbar includes a hole elongated along the first direction and configured to balance one or more loop inductances between at least one AC external terminal point and the connection points. A modular multilevel converter (MMC) is also provided, including a plurality of converter arms each including at least one sub module formed by the PEBB.
Claims15
A power electronic building block (PEBB), comprising:
- a plurality of capacitors;
- a plurality of switch modules, each switch module of the plurality of switch modules including a first terminal, a second terminal and a third terminal, at least one first semiconductor switch connected between the first terminal and the third terminal, and at least one second semiconductor switch connected between the second terminal and the third terminal;
- a busbar arrangement including one or more busbars connecting the first terminals of the plurality of switch modules together, connecting the second terminals of the plurality of switch modules together, and connecting the plurality of capacitors across the first terminals and the second terminals of the plurality of switch modules, via a first plurality of connection points, wherein the busbar arrangement includes a capacitor busbar configured to connect the plurality of capacitors, and a switch busbar connected to the capacitor busbar configured to connect the plurality of capacitors across the first terminals and the second terminals of the plurality of switch modules;
- and
- at least one AC busbar including a second plurality of connection points connecting the third terminals of the plurality of switch modules together via said at least one AC busbar, and at least one AC terminal point.
2 more elements
A power electronic building block (PEBB), comprising:
- a plurality of capacitors;
- a plurality of switch modules, each switch module of the plurality of switch modules including a first terminal, a second terminal and a third terminal, at least one first semiconductor switch connected between the first terminal and the third terminal, and at least one second semiconductor switch connected between the second terminal and the third terminal;
- a busbar arrangement including one or more busbars connecting the first terminals of the plurality of switch modules together, connecting the second terminals of the plurality of switch modules together, and connecting the plurality of capacitors across the first terminals and the second terminals of the plurality of switch modules, via a first plurality of connection points, wherein the busbar arrangement includes a capacitor busbar configured to connect the plurality of capacitors, and a switch busbar connected to the capacitor busbar configured to connect the plurality of capacitors across the first terminals and the second terminals of the plurality of switch modules;
- at least one AC busbar including a second plurality of connection points connecting the third terminals of the plurality of switch modules together via said at least one AC busbar, and at least one AC terminal point;
- and
- a DC crowbar thyristor and clamping apparatus connected with the plurality of capacitors.
3 more elements
A power electronic building block (PEBB), comprising:
- a plurality of box type film capacitors;
- a plurality of switch modules, each switch module of the plurality of switch modules including a first terminal, a second terminal and a third terminal, at least one first semiconductor switch connected between the first terminal and the third terminal, and at least one second semiconductor switch connected between the second terminal and the third terminal;
- a busbar arrangement including one or more busbars connecting the first terminals of the plurality of switch modules together, connecting the second terminals of the plurality of switch modules together, and connecting the plurality of capacitors across the first terminals and the second terminals of the plurality of switch modules, via a first plurality of connection points, wherein the busbar arrangement includes a main busbar connected to the capacitor busbar, and a switch busbar connected to the main busbar for connecting the plurality of capacitors across the first terminals and the second terminals of the plurality of switch modules via said main busbar;
- and
- at least one AC busbar including a second plurality of connection points connecting the third terminals of the plurality of switch modules together via said at least one AC busbar, and at least one AC terminal point.
2 more elements
Dependencies are inferred from the claim text.