Sparse and ultra-sparse partial resonant converters

Patent metadata

Field	Value
Publication number	US-9543853-B2
Application number	US-201414296010-A
Country	US
Kind code	B2
Filing date	Jun 4, 2014
Priority date	Jun 3, 2011
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

The AC portion of the input of the ultra-sparse partial resonant power converter contains three pairs of forward-conducting-bidirectional-blocking switches connected in a first direction, and two pairs of forward-conducting-forward-blocking devices connected in a second direction to the three pairs of forward-conducting-bidirectional-blocking switches. The second direction is opposite to the first direction. The AC portion of the output of the ultra-sparse partial resonant power converter contains three pairs of forward-conducting-bidirectional-blocking switches connected in a first direction, and two pairs of forward-conducting-reverse-blocking devices connected in a second direction to the three pairs of forward-conducting-bidirectional-blocking switches. The forward-conducting-reverse-blocking devices can be switches or diodes.

First claim

What is claimed is:

1. An input or output switching circuit for a power converter comprising:
two or more pairs of forward-conducting-bidirectional-blocking switches connected in a first direction;
two pairs of forward-conducting-bidirectional-blocking devices connected in a second direction to the two or more pairs of forward-conducting-bidirectional-blocking switches whenever the input or output switching circuit is a sparse input or output switching circuit;
two pairs of forward-conducting-forward-blocking devices connected in the second direction to the two or more pairs of forward-conducting-bidirectional-blocking switches whenever the input or output switching circuit is an ultra-sparse input switching circuit;
two pairs of forward-conducting-reverse-blocking devices connected in the second direction to the two or more pairs of forward-conducting-bidirectional-blocking switches, whenever the input or output switching circuit is an ultra-sparse output switching circuit; and
wherein the second direction is opposite to the first direction.

2. The switching circuit as recited in claim 1 , wherein the two or more pairs of forward-conducting-bidirectional-blocking switches comprise two pairs of forward-conducting-bidirectional-blocking switches whenever the input or output switching circuit is a DC input or output switching circuit or a single-phase AC input or output switching circuit.

3. The switching circuit as recited in claim 1 , wherein the two or more pairs of forward-conducting-bidirectional-blocking switches comprise three or more pairs of forward-conducting-bidirectional-blocking switches whenever the input or output switching circuit is a three or more phase AC input or output switching circuit.

4. The switching circuit as recited in claim 1 , wherein each forward-conducting-bidirectional-blocking switch comprises a switch coupled with a reverse blocking diode, or a reverse blocking insulated-gate bipolar transistor (IGBT) module.

5. The switching circuit as recited in claim 1 , wherein:
each forward-conducting-forward-blocking device comprises a switch or an insulated-gate bipolar transistor (IGBT); and
each forward-conducting-reverse-blocking device comprises a diode.

6. An input or output sparse switching circuit for a power converter comprising:
two or more pairs of forward-conducting-bidirectional-blocking switches connected in a first direction; and
two pairs of forward-conducting-bidirectional-blocking devices connected in a second direction to the two or more pairs of forward-conducting-bidirectional-blocking switches, wherein the second direction is opposite to the first direction.

7. The switching circuit as recited in claim 6 , wherein the two or more pairs of forward-conducting-bidirectional-blocking switches comprise two pairs of forward-conducting-bidirectional-blocking switches whenever the sparse input or output switching circuit is a DC input or output sparse switching circuit or a single-phase AC input or output sparse switching circuit.

8. The switching circuit as recited in claim 6 , wherein the two or more pairs of forward-conducting-bidirectional-blocking switches comprise three or more pairs of forward-conducting-bidirectional-blocking switches whenever the input or output sparse switching circuit is a three or more phase AC input or output sparse switching circuit.

9. The switching circuit as recited in claim 6 , wherein each forward-conducting-bidirectional-blocking switch and each forward-conducting-bidirectional-blocking device comprises a switch coupled with a reverse blocking diode, or a reverse blocking insulated-gate bipolar transistor (IGBT) module.

10. An input or output ultra-sparse switching circuit for a power converter comprising:
two or more pairs of forward-conducting-bidirectional-blocking switches connected in a first direction;
two pairs of forward-conducting-forward-blocking devices connected in a second direction to the two or more pairs of forward-conducting-bidirectional-blocking switches whenever the input or output switching circuit is an ultra-sparse input switching circuit;
two pairs of forward-conducting-reverse-blocking devices connected in the second direction to the two or more pairs of forward-conducting-bidirectional-blocking switches, whenever the input or output switching circuit is an ultra-sparse output switching circuit; and
wherein the second direction is opposite to the first direction.

11. The switching circuit as recited in claim 10 , wherein the two or more pairs of forward-conducting-bidirectional-blocking switches comprise two pairs of forward-conducting-bidirectional-blocking switches whenever the input or output ultra-sparse switching circuit is a DC input or output ultra-sparse switching circuit or a single-phase AC input or output ultra-sparse switching circuit.

12. The switching circuit as recited in claim 10 wherein the two or more pairs of forward-conducting-bidirectional-blocking switches comprise three or more pairs of forward-conducting-bidirectional-blocking switches whenever the input or output ultra-sparse switching circuit is a three or more phase AC input or output ultra-sparse switching circuit.

13. The switching circuit as recited in claim 10 , wherein each forward-conducting-bidirectional-blocking switch comprises a switch coupled with a reverse blocking diode, or a reverse blocking insulated-gate bipolar transistor (IGBT) module.

14. The switching circuit as recited in claim 10 , wherein:
each forward-conducting-forward-blocking device comprises a switch or an insulated-gate bipolar transistor (IGBT); and
each forward-conducting-reverse-blocking device comprises a diode.

15. A sparse partial resonant converter comprising:
a first switching circuit comprising at least two pairs of first forward-conducting-bidirectional-blocking switches connected in a first direction and two pairs of first forward-conducting-bidirectional-blocking devices connected in a second direction to the at least two pairs of first forward-conducting-bidirectional-blocking switches, wherein the second direction is opposite to the first direction;
a second switching circuit comprising at least two pairs of second forward-conducting-bidirectional-blocking switches connected in the first direction and two pairs of second forward-conducting-bidirectional-blocking devices connected in the second direction to the at least two pairs of second forward-conducting-bidirectional-blocking switches; and
a partial resonant link circuit connected between the first switching circuit and the second switching circuit.

16. The sparse partial resonant converter as recited in claim 15 , wherein:
the first switching circuit comprises a DC input or output sparse switching circuit or a single-phase AC input or output sparse switching circuit; and
the at least two pairs of first forward-conducting-bidirectional-blocking switches comprise two pairs of first forward-conducting-bidirectional-blocking switches.

17. The sparse partial resonant converter as recited in claim 15 , wherein:
the second switching circuit comprises a DC input or output sparse switching circuit or a single-phase AC input or output sparse switching circuit; and
the at least two pairs of second forward-conducting-bidirectional-blocking switches comprise two pairs of second forward-conducting-bidirectional-blocking switches.

18. The sparse partial resonant converter as recited in claim 15 , wherein:
the first switching circuit comprises a three or more phase AC input or output sparse switching circuit; and
the two or more

Assignees

• Texas A & M Univ Sys

Inventors

• Tollyat Hamid A
• Amirabadi Mahshid

Classifications

• Y02B70/145

  Cross-Sectional Technologies · mapped topic

• H02M5/4585 Primary

  having a rectifier with controlled elements · CPC title

• Y02P80/10

  Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier · CPC title

• Y02B70/10

  Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes · CPC title