Electrical converter and method for operating an electrical converter
An electrical converter has an alternating-voltage side with at least two alternating-voltage terminals and a direct-voltage side. At least two series connections connected in parallel and each forming a converter arm of the converter assigned to one of the alternating-voltage terminals. Circular cu...
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| creator | Delzenne, Maxime Ebner, Guenter |
| description | An electrical converter has an alternating-voltage side with at least two alternating-voltage terminals and a direct-voltage side. At least two series connections connected in parallel and each forming a converter arm of the converter assigned to one of the alternating-voltage terminals. Circular currents can flow between the series connections. According to the method, a load value describing the thermal load of the converter is calculated based on: an active power current value that indicates the active power current component of a phase current flowing across one of the alternating-voltage terminals; a reactive power current value that indicates the reactive power current component of the phase current flowing across the alternating-voltage terminal; and a circular current value that indicates the magnitude of the circular current(s) flowing between the series connections. The converter is controlled while also taking into account this load value. |
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At least two series connections connected in parallel and each forming a converter arm of the converter assigned to one of the alternating-voltage terminals. Circular currents can flow between the series connections. According to the method, a load value describing the thermal load of the converter is calculated based on: an active power current value that indicates the active power current component of a phase current flowing across one of the alternating-voltage terminals; a reactive power current value that indicates the reactive power current component of the phase current flowing across the alternating-voltage terminal; and a circular current value that indicates the magnitude of the circular current(s) flowing between the series connections. 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At least two series connections connected in parallel and each forming a converter arm of the converter assigned to one of the alternating-voltage terminals. Circular currents can flow between the series connections. According to the method, a load value describing the thermal load of the converter is calculated based on: an active power current value that indicates the active power current component of a phase current flowing across one of the alternating-voltage terminals; a reactive power current value that indicates the reactive power current component of the phase current flowing across the alternating-voltage terminal; and a circular current value that indicates the magnitude of the circular current(s) flowing between the series connections. 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At least two series connections connected in parallel and each forming a converter arm of the converter assigned to one of the alternating-voltage terminals. Circular currents can flow between the series connections. According to the method, a load value describing the thermal load of the converter is calculated based on: an active power current value that indicates the active power current component of a phase current flowing across one of the alternating-voltage terminals; a reactive power current value that indicates the reactive power current component of the phase current flowing across the alternating-voltage terminal; and a circular current value that indicates the magnitude of the circular current(s) flowing between the series connections. The converter is controlled while also taking into account this load value.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION |
| title | Electrical converter and method for operating an electrical converter |
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