METHOD FOR CONTROLLING A CYCLOCONVERTER, ELECTRONIC CONTROL DEVICE THEREFOR, CYCLOCONVERTER, AND COMPUTER PROGRAM
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Accused Products
Abstract
A cycloconverter has six converter branches connected in series, and said converter branches have energy stores. A method for controlling the cycloconverter connecting a first three-line network to a second three-line network includes controlling the converter operation by controlling energy transfer from the first three-line network to the second three-line network or vice versa according to energy demand criteria, energy supply criteria, and/or reactive power criteria, and by controlling the amount of electrical energy stored in each converter or by controlling an electrical variable that characterizes the amount of electrical energy to a specified target range. The invention further relates to an electronic control device for such a cycloconverter, and to a computer program for carrying out the method.
6 Citations
31 Claims
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1-16. -16. (canceled)
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17. A method for controlling a cycloconverter comprising six converter branches connected in series, each of the converter branches comprising electrical energy converters, the cycloconverter configured to connect a first three-line network to a second three-line network, the method comprising:
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controlling energy transfer from the first three-line network to the second three-line network or vice versa in accordance with at least one of energy demand, energy supply and reactive power criteria, and regulating an amount of electrical energy stored in each converter branch or an electrical variable identifying the amount of electrical energy to a predetermined setpoint range. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An electronic control device for a cycloconverter, the cycloconverter comprising six converter branches connected in series, each of the converter branches comprising electrical energy converters, the cycloconverter connecting a first three-line network to a second three-line network, the electronic control device comprising:
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a converter operation controller controlling energy transfer from the first three-line network to the second three-line network or vice versa in accordance with at least one of energy demand, energy supply and reactive power criteria, and an energy content controller regulating an amount of electrical energy stored in each converter branch or an electrical variable identifying the amount of electrical energy to a predetermined setpoint range.
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30. A cycloconverter comprising six converter branches connected in series, each of the converter branches comprising electrical energy converters, the cycloconverter connecting a first three-line network to a second three-line network and comprising a control device which includes
a converter operation controller controlling energy transfer from the first three-line network to the second three-line network or vice versa in accordance with at least one of energy demand, energy supply and reactive power criteria, and an energy content controller regulating an amount of electrical energy stored in each converter branch or an electrical variable identifying the amount of electrical energy to a predetermined setpoint range.
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31. A computer program having program code embodies on a non-transitory computer-readable medium, wherein the computer program when read into a processor operatively connected to a cycloconverter, the cycloconverter comprising six converter branches connected in series, each of the converter branches comprising electrical energy converters, the cycloconverter connecting a first three-line network to a second three-line network, causes the processor to:
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control energy transfer from the first three-line network to the second three-line network or vice versa in accordance with at least one of energy demand, energy supply and reactive power criteria, and regulate an amount of electrical energy stored in each converter branch or an electrical variable identifying the amount of electrical energy to a predetermined setpoint range.
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Specification