Control methods for power converters
A method of operating a power converter arrangement is described. The power converter arrangement includes a dc link (2) and a dc load/source (4) such as a battery. An active rectifier/inverter (20) having dc terminals (24a, 24b) is connected to the dc link (2) and is adapted to provide a variable d...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
26.11.2014
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Subjects | |
Online Access | Get full text |
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Summary: | A method of operating a power converter arrangement is described. The power converter arrangement includes a dc link (2) and a dc load/source (4) such as a battery. An active rectifier/inverter (20) having dc terminals (24a, 24b) is connected to the dc link (2) and is adapted to provide a variable dc link voltage V 1 between maximum and minimum limits. An interleaved buck (or step down) converter (1) having a plurality of converter circuits is connected between the dc link (2) and the dc load/source (4). Each converter circuit includes a first switch (6 1 , 6 2 , 6 3 ), a second switch (8 1 , 8 2 , 8 3 ) and a reactor (101, 102 , 10 3 ). The power converter arrangement is controlled according to a method where one or more null values of dc link voltage are determined with reference to the voltage V 2 across the dc load/source (4). If a null value of dc link voltage is between the maximum and minimum limits, the active rectifier/inverter (20) is controlled (e.g., by a controller (30)) to provide a dc link voltage that is substantially the same as the null value of dc link voltage. |
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Bibliography: | Application Number: EP20130168560 |