Patent · US Active

Control of modular multilevel series/parallel converters (MMSPC) by means of switching tables and continuous background optimisation thereof

US11626812B2 · kind B2 · utility

0Cited by

7References

16Claims

0Family size

Assignee

Dr. Ing. h.c. F. Porsche AG · DE

Inventors

Eduard Specht · Dormagen, DE
Stefan Goetz · Forstern, DE
Tomas Kacetl · Gemmrigheim, DE
Daniel L. Simon · Glendale, US

Key dates

Filing date	May 13, 2019
Grant date	Apr 11, 2023
Priority date	—
Expiry date	Sep 23, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/0003
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method controls switching states of a multi-level converter with multiple modules. Each module has: terminals on a first and second side; controllable switches; and an energy store in series with a first switch in a first connection between the terminals. A second switch is arranged in a connection between the terminals. The control of the switching states is divided into a real-time and offline part. In the real-time part, for each time step: a voltage level is allocated to a voltage requirement; a total switching state is determined in a first switching table for the voltage level; and the total switching state is passed on as a control signal to the switches. In the offline part: a second switching table is calculated, resulting in accordance with a minimization of a cost function.

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