Converter system
First Claim
1. A converter system comprising:
- a first back-to-back converter comprising;
a first rectifier module comprising a first rectifier and a first controller, wherein the first rectifier has an input side and an output side so as to convert a first AC voltage to a first DC voltage, and the first rectifier is controlled by the first controller; and
a first inverter module comprising a first inverter and a third controller, wherein the first inverter has an input side and an output side so as to invert the first DC voltage to a second AC voltage, and the first inverter is controlled by the third controller; and
a second back-to-back converter comprising;
a second rectifier module comprising a second rectifier and a second controller, wherein the second rectifier has an input side and an output side so as to convert the first AC voltage to a second DC voltage, the second rectifier is controlled by the second controller, and the input side of the second rectifier is connected to the input side of the first rectifier in parallel; and
a second inverter module comprising a second inverter and a fourth controller, wherein the second inverter has an input side and an output side, so as to invert the second DC voltage to the second AC voltage, the second inverter is controlled by the fourth controller, and the output side of the second inverter is connected to the output side of the first inverter in parallel,wherein the first and second rectifiers have a rectifier frequency, the first and second inverters have an inverter frequency, and a circular current of the converter system is suppressed through the synchronous operation of the first and second rectifiers or through the synchronous operation of the first and second inverters.
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Accused Products
Abstract
The present disclosure discloses a converter system, which at least includes the first and second back-to-back converters. The first back-to-back converter includes a first rectifier module and a first inverter module. The first rectifier module is used to convert a first AC voltage to a first DC voltage. The first inverter module is used to convert the first DC voltage to a second AC voltage. The second back-to-back converter includes a second rectifier module and a second inverter module. The second rectifier module is used to convert the first AC voltage to a second DC voltage. The second inverter module is used to convert the second DC voltage to the second AC voltage. The converter system can suppress the circular current through the synchronous operation of the first and second rectifiers or the synchronous operation of the first and second inverters.
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Citations
41 Claims
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1. A converter system comprising:
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a first back-to-back converter comprising; a first rectifier module comprising a first rectifier and a first controller, wherein the first rectifier has an input side and an output side so as to convert a first AC voltage to a first DC voltage, and the first rectifier is controlled by the first controller; and a first inverter module comprising a first inverter and a third controller, wherein the first inverter has an input side and an output side so as to invert the first DC voltage to a second AC voltage, and the first inverter is controlled by the third controller; and a second back-to-back converter comprising; a second rectifier module comprising a second rectifier and a second controller, wherein the second rectifier has an input side and an output side so as to convert the first AC voltage to a second DC voltage, the second rectifier is controlled by the second controller, and the input side of the second rectifier is connected to the input side of the first rectifier in parallel; and a second inverter module comprising a second inverter and a fourth controller, wherein the second inverter has an input side and an output side, so as to invert the second DC voltage to the second AC voltage, the second inverter is controlled by the fourth controller, and the output side of the second inverter is connected to the output side of the first inverter in parallel, wherein the first and second rectifiers have a rectifier frequency, the first and second inverters have an inverter frequency, and a circular current of the converter system is suppressed through the synchronous operation of the first and second rectifiers or through the synchronous operation of the first and second inverters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A converter system comprising:
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a first back-to-back converter comprising; a first rectifier module comprising a first rectifier and a first controller, wherein the first rectifier has an input side and an output side so as to convert a first AC voltage to a first DC voltage, and the first rectifier is controlled by the first controller; and a first inverter module comprising a first inverter and a third controller, wherein the first inverter has an input side and an output side so as to invert the first DC voltage to a second AC voltage, and the first inverter is controlled by the third controller; and a second back-to-back converter comprising; a second rectifier module comprising a second rectifier and a second controller, wherein the second rectifier has an input side and an output side, so as to convert the first AC voltage to a second DC voltage, the second rectifier is controlled by the second controller, and the input side of the second rectifier is connected to the input side of the first rectifier in parallel; and a second inverter module comprising a second inverter and a fourth controller, wherein the second inverter has an input side and an output side, so as to invert the second DC voltage to the second AC voltage, the second inverter is controlled by the fourth controller, and the output side of the second inverter is connected to the output side of the first inverter in parallel, wherein the circular current of the converter system is suppressed simultaneously through the synchronous operation of the first and second rectifiers and through the synchronous operation of the first and second inverters. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification