Matrix converter
AssigneeKabushiki Kaisha Yaskawa Denki
InventorsSumiaki Nagano, Makoto Kojyo, Takahiro Uchino
Life of this patent
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Abstract
A matrix converter includes a plurality of semiconductor switch modules, and a plurality of snubber modules each having a plurality of capacitors and a plurality of diodes. Each of the snubber modules has a terminal group projecting outward, a first terminal, and a second terminal. The first and second terminals project from positions different from the terminal group, and are connected to an external circuit provided outside the matrix converter. Terminals of the terminal group are connected to terminals of a corresponding semiconductor switch module. The first terminals of the plurality of snubber modules are connected to one another via a first bus bar, and the second terminals are connected to one another via a second bus bar.
Claims9
A matrix converter comprising:
- a plurality of semiconductor switch modules each having a semiconductor bidirectional switch;
- and
- a plurality of snubber modules each having a plurality of capacitors and a plurality of diodes for reducing surge voltage generated by switching of the semiconductor bidirectional switches,
- wherein each of the snubber modules has a terminal group projecting outward, a first terminal, and a second terminal, the first terminal and the second terminal projecting from positions different from the terminal group and being connected to an external circuit provided outside the matrix converter,
- wherein terminals of the terminal group are connected to terminals of a corresponding semiconductor switch module among the semiconductor switch modules,
- wherein the first terminals of the plurality of snubber modules are connected to one another via a first bus bar, and the second terminals of the plurality of snubber modules are connected to one another via a second bus bar,
- wherein the first terminals are connected to a discharge circuit via the first bus bar, and
- wherein the second terminals are connected to the discharge circuit via the second bus bar.
A matrix converter comprising:
- a plurality of semiconductor switch modules each having a semiconductor bidirectional switch;
- and
- a plurality of snubber modules each having a plurality of capacitors and a plurality of diodes for reducing surge voltage generated by switching of the semiconductor bidirectional switches,
- wherein each of the snubber modules has a terminal group projecting outward, a first terminal, and a second terminal, the first terminal and the second terminal projecting from positions different from the terminal group and being connected to an external circuit provided outside the matrix converter,
- wherein terminals of the terminal group are connected to terminals of a corresponding semiconductor switch module among the semiconductor switch modules,
- wherein the first terminals of the plurality of snubber modules are connected to one another via a first bus bar, and the second terminals of the plurality of snubber modules are connected to one another via a second bus bar,
- wherein the terminal groups project from first edges of the snubber modules,
- wherein the first terminals and the second terminals project from second edges located at positions higher than the first edges, and
- wherein the first terminals and the second terminals are arranged at positions where the first terminals and the second terminals can be connected via a laminate bus bar, the laminate bus bar being formed by stacking the first bus bar, an insulator, and the second bus bar in order.
Dependencies are inferred from the claim text.