Patent · US Active

Modulation index improvement by intelligent battery

US10784698B2 · kind B2 · utility

29Cited by

2References

9Claims

0Family size

Assignee

Dr. Ing. h.c. F. Porsche AG · DE

Inventors

Malte Jaensch · Bietigheim-Bissingen, DE
Jan Kacetl · Gemmrigheim, DE
Tomas Kacetl · Gemmrigheim, DE
Stefan Götz · Forstern, DE

Key dates

Filing date	Mar 12, 2019
Grant date	Sep 22, 2020
Priority date	—
Expiry date	Mar 12, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH02J7/0025
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for improving the modulation index using an intelligent battery pack, in which method a battery pack includes a plurality of freely interconnectable energy modules. An energy module has at least one energy cell and at least two switches, and in which method series or parallel interconnection of a respective energy module with at least one adjacent energy module of the battery pack is implemented by a controller. A terminal voltage of the battery pack, which terminal voltage results from the respective interconnection, is adjusted in accordance with a respectively prespecified load demand on at least one N-phase electrical machine. The terminal voltage is connected as an input voltage to at least one multi-stage inverter, and an N-phase alternating current for supplying a respective N-phase electrical machine is formed by the at least one multi-stage inverter on the basis of a level of the input voltage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.