M2LC System Coupled to a Rectifier System
A system. The system is a modular multilevel converter system and includes a plurality of series connected modular multilevel converter cells. At least one of the modular multilevel converter cells is a three-level modular multilevel converter cell. The plurality of series connected modular multilevel converter cells are coupled to a rectifier system via a DC bus.
1 . A modular multilevel converter system, comprising:
a plurality of series connected modular multilevel converter cells, wherein at least one of the modular multilevel converter cells is a three-level modular multilevel converter cell, and wherein the plurality of series connected modular multilevel converter cells are coupled to a rectifier system via a DC bus.
2 . The system of claim 1 , wherein at least one other modular multilevel converter system is coupled to the rectifier system.
3 . The system of claim 1 , wherein the rectifier system comprises a plurality of series connected rectifiers.
4 . The system of claim 1 , wherein the rectifier system is an interchangeable rectifier system.
5 . The system of claim 1 , wherein the rectifier system comprises at least one diode-based rectifier.
6 . The system of claim 1 , wherein the rectifier system comprises at least one insulated gate bipolar transistor-based rectifier.
7 . The system of claim 1 , further comprising a supplemental and controllable electrical energy storage system coupled to one or more of the modular multilevel converter systems.
8 . The system of claim 7 , wherein at least one of the modular multilevel converter cells of the one or more modular multilevel converter systems comprises:
a battery storage device; and
a DC-to-DC converter coupled to the battery storage device.
9 . The system of claim 7 , wherein the energy storage system comprises a plurality of energy storage subsystems, wherein:
a first one of the plurality of energy storage subsystems is coupled to a first series connected modular multilevel converter cell; and
a second one of the plurality of energy storage subsystems is coupled to a second series connected modular multilevel converter cell.
10 . The system of claim 9 , wherein the first one of the plurality of energy storage subsystems comprises:
a battery storage device; and
a DC-to-DC converter coupled to the battery storage device.
11 . The system of claim 1 , further comprising a telemetry system coupled to the plurality of series connected modular multilevel converter cells.
12 . A modular multilevel converter system, comprising:
a plurality of series connected modular multilevel converter cells; and
a supplemental and controllable electrical energy storage system coupled to one or more of the modular multilevel converter cells, wherein the electrical energy storage system is configured to:
receive energy from at least one of the following:
an AC terminal of the modular multilevel converter system; and
a DC bus of the modular multilevel converter system; and
supply energy to at least one of the following:
an AC terminal of the modular multilevel converter system; and
a DC bus of the modular multilevel converter system.
13 . The system of claim 12 , wherein at least one of the modular multilevel converter cells is a two-level modular multilevel converter cell.
14 . The system of claim 12 , wherein at least one of the modular multilevel converter cells is a three-level modular multilevel converter cell.
15 . The system of claim 12 , wherein at least one of the modular multilevel converter cells comprises:
a battery storage device; and
a DC-to-DC converter coupled to the battery storage device.
16 . The system of claim 12 , wherein the energy storage system comprises a plurality of energy storage subsystems, wherein:
a first one of the plurality of energy storage subsystems is coupled to a first one of the plurality of series connected modular multilevel converter cells; and
a second one of the plurality of energy storage subsystems is coupled to a second one of the plurality of series connected modular multilevel converter cells.
17 . The system of claim 16 , wherein the first one of the plurality of energy storage subsystems comprises:
a battery storage device; and
a DC-to-DC converter coupled to the battery storage device.
18 . The system of claim 12 , wherein the modular multilevel converter system is coupled to one or more other modular multilevel converter systems.
19 . The system of claim 18 , wherein the electrical energy storage system is further configured to:
receive energy from the one or more other modular multilevel converter systems; and
supply energy to the one or more other modular multilevel converter systems.
20 . The system of claim 18 , further comprising a telemetry system coupled to at least two of the modular multilevel converter systems.