CONVERTER FOR AN ELECTRICAL MACHINE, CONTROLLER AND METHOD FOR OPERATING A CONVERTER
First Claim
1. A converter for an electrical machine, the converter comprising:
- a plurality of phase lines for connecting the electrical machine, wherein;
each phase line for the converter has a half-bridge with a first semiconductor switch and a second semiconductor switch;
the first semiconductor switch is configured to electrically connect at least one of the phase lines intermittently to a first supply line of the converter;
the second semiconductor switch is configured to electrically connect the phase line intermittently to a second supply line of the converter; and
the converter is configured for operation intermittently in a first energy recovery limiting mode in which at least two of the first semiconductor switches are at least intermittently on simultaneously.
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Accused Products
Abstract
A converter for an electrical machine having a plurality of phase lines for connecting the electrical machine. For each phase line the converter has a half-bridge with a first first semiconductor switch is configured to electrically connect at least one of the phase lines intermittently to a first supply line of the converter, and a second semiconductor switch configured to electrically connect the phase line intermittently to a second supply line of the converter. The converter is configured for operation in a first energy recovery limiting mode in which at least two of the first semiconductor switches are at least intermittently on simultaneously.
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Citations
19 Claims
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1. A converter for an electrical machine, the converter comprising:
a plurality of phase lines for connecting the electrical machine, wherein; each phase line for the converter has a half-bridge with a first semiconductor switch and a second semiconductor switch; the first semiconductor switch is configured to electrically connect at least one of the phase lines intermittently to a first supply line of the converter; the second semiconductor switch is configured to electrically connect the phase line intermittently to a second supply line of the converter; and the converter is configured for operation intermittently in a first energy recovery limiting mode in which at least two of the first semiconductor switches are at least intermittently on simultaneously. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A controller for a converter for an electrical machine, the converter having a plurality of phase lines for connecting the electrical machine and configured for operation intermittently in a first energy recovery limiting mode and a second energy recovery limiting mode, the controller comprising:
at least one control element configured to initiate one of the first energy recovery limiting mode and the second energy recovery limiting mode in the event of a malfunction in the converter. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for operating a converter of an electrical machine, the method comprising:
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providing a converter comprising a plurality of phase lines for connecting the electrical machine, wherein for each phase line the converter has a half-bridge with a first semiconductor switch and a second semiconductor switch, the first semiconductor switch being configured to electrically connect the phase lines intermittently to a first supply line of the converter, and the second semiconductor switch being configured to electrically connect the phase lines intermittently to a second supply line of the converter; monitoring of the of the converter in order to recognize a malfunction in the converter; and
thenoperating the converter, when a malfunction in the converter has been recognized, in a first energy recovery limiting mode in which at least two of the first semiconductor switches are at least intermittently on simultaneously.
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Specification