Method and arrangement in connection with inverter

Details Method and arrangement in connection with inverter Method and arrangement in connection with inverter

2011-04-12

2011-04-12

Han, Jessica (Department: 2838)

Electric power conversion systems

Current conversion

Having plural converters for single conversion

C363S071000

Reexamination Certificate

active

07924583

ABSTRACT:
A method and an arrangement for controlling an inverter provided with a voltage intermediate circuit, the inverter (1) comprising two or more sub-inverters (1A,1B,1C), each being connected with a specific cable to feed a common load (2) and each sub-inverter (1A,1B,1C) receiving the same switch instruction pattern. The method comprises the steps of determining the magnitude of a time delay, and consecutively generating, with each sub-inverter (1A,1B,1C), an output voltage according to the switch instruction for the load (2) such that each sub-inverter generates an output voltage according to the switch instruction after a time equal to the time delay.

REFERENCES:
patent: 5460244 (1995-10-01), Tanahashi
patent: 6014497 (2000-01-01), Kerkman et al.
patent: 7138773 (2006-11-01), Kumar
patent: 3-23180 (1991-01-01), None
patent: 2003-209943 (2003-07-01), None
patent: 2005-328637 (2005-11-01), None

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