Ship or power plant voltage supply system

Patent metadata

Field	Value
Publication number	US-11031633-B2
Application number	US-201815888818-A
Country	US
Kind code	B2
Filing date	Feb 5, 2018
Priority date	Feb 6, 2017
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

A voltage supply system for supplying an electric consumer with an electric target voltage and an electric target energy, with a plurality of automotive traction battery modules. Each automotive traction battery module has an electric actual voltage and an electric actual energy. The automotive traction battery modules are interconnected dependent on the electric target voltage, the electric actual voltage, the electric target energy, and the electric actual energy in series connections and/or in a parallel connection to form at least one traction battery module group.

First claim

What is claimed is:

1. A ship voltage supply system configured to supply an electric consumer of a ship with an electric target voltage and an electric target energy, comprising:
a plurality of automotive traction battery modules, wherein each automotive traction battery module has an electric actual voltage and an electric actual energy;
wherein the plurality of automotive traction battery modules are interconnected based at least in part on the electric target voltage, the electric actual voltage, the electric target energy, and the electric actual energy;
an automotive CAN bus system; and
a controller coupled to each of the plurality of automotive traction battery modules via the automotive CAN bus system and configured to:
switch off a defective automotive traction battery module and,
based at least in part on the electric target voltage, the electric actual voltage, the electric target energy, and the electric actual energy, activate the plurality of automotive traction battery modules to be interconnected at least one of:
in a series connection to form a plurality of traction battery module subgroups; and
in a parallel connection to form at least one traction battery module group.

2. The ship voltage supply system according to claim 1 , wherein when the electric actual voltage of the plurality of automotive traction battery modules corresponds to the electric target voltage of the electric consumer, the plurality of automotive traction battery modules are connected in parallel to form the at least one traction battery module group.

3. The ship voltage supply system according to claim 2 , wherein when the electric actual voltage of the plurality of automotive traction battery modules is smaller than the electric target voltage of the electric consumer, the plurality of automotive traction battery modules are connected in series to form each traction battery module subgroup and the plurality of traction battery module subgroups are connected in parallel to form the at least one traction battery module group.

4. The ship voltage supply system according to claim 1 , wherein when the electric actual voltage of the plurality of automotive traction battery modules is smaller than the electric target voltage of the electric consumer, the plurality of automotive traction battery modules are connected in series to form each traction battery module subgroup and the plurality of traction battery module subgroups are connected in parallel to form the at least one traction battery module group.

5. The ship voltage supply system according to claim 1 , wherein each automotive traction battery module is configured to be activated by the automotive CAN bus system.

6. The ship voltage supply system according to claim 5 , wherein a number of the plurality of automotive traction battery modules of each traction battery module group is based at least in part on a control signal capacity of the automotive CAN bus system.

7. The ship voltage supply system according to claim 6 ,
wherein a plurality of traction battery module groups are electrically connected in parallel,
wherein the number of the plurality of automotive traction battery modules of each traction battery module group is based at least in part on the control signal capacity of the automotive CAN bus system,
wherein the plurality of automotive traction battery modules of each traction battery module group are each connected to a group-individual automotive CAN bus system,
wherein the number of traction battery module groups is based at least in part on a target energy of the electric consumer, and
wherein the group-individual automotive CAN bus systems are connected to a higher-level control device.

8. The ship voltage supply system to claim 1 , wherein the actual energy of each automotive traction battery module is between 10 to 100 kWh, and wherein a target energy of the electrical consumer is greater than 1,000 kWh.

9. A power plant voltage supply system configured to supply an electric consumer of a power plant with an electric target voltage and an electric target energy, comprising:
a plurality of automotive traction battery modules, wherein each automotive traction battery module has an electric actual voltage and an electric actual energy; and
wherein the plurality of automotive traction battery modules are interconnected based at least in part on the electric target voltage, the electric actual voltage, the electric target energy, and the electric actual energy;
an automotive CAN bus system; and
a controller coupled to each of the plurality of automotive traction battery modules via the automotive CAN bus system and configured to:
switch off a defective automotive traction battery module and,
based at least in part on the electric target voltage, the electric actual voltage, the electric target energy, and the electric actual energy, activate the plurality of automotive traction battery modules to be interconnected at least one of:
in a series connection to form a plurality of traction battery module subgroups; and
in a parallel connection to form at least one traction battery module group.

10. The power plant voltage supply system according to claim 9 , wherein when the electric actual voltage of the plurality of automotive traction battery modules corresponds to the electric target voltage of the electric consumer, the plurality of automotive traction battery modules are connected in parallel to form the at least one traction battery module group.

11. The power plant voltage supply system according to claim 9 , wherein when the electric actual voltage of the plurality of automotive traction battery modules is smaller than the electric target voltage of the electric consumer, the plurality of automotive traction battery modules are connected in series to form each traction battery module subgroup and the plurality of traction battery module subgroups are connected in parallel to form the at least one traction battery module group.

Assignees

• Man Diesel & Turbo Se
• Man Energy Solutions Se

Inventors

• Knafl Alexander
• Stiesch Gunnar
• Friedrich Bernd

Classifications

• H02J2105/31

  for ships or vessels · CPC title

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• B60L1/00 Primary

  Supplying electric power to auxiliary equipment of vehicles (circuit arrangements for charging batteries H02J7/00) · CPC title

• H01M10/425 Primary

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title