| Converteam GmbH Patent applications |
| Patent application number | Title | Published |
|---|
| 20120182774 | Method For Operating A Converter In A System For Generating Electrical Energy - Described is a method for operating a converter for a system for generating electrical energy. In an embodiment of the method, the output voltage of the converter is converted to a d, q coordinate system, wherein the d, q coordinate system is assigned to the frequency of the voltage for the energy supply grid. A desired value is furthermore specified in the d, q coordinate system, several momentary or future values are determined from the output voltage in the d, q coordinate system for different switch positions of the converter, deviations between the desired value and the momentary or future values are determined in the d, q coordinate system, and the converter is switched to one of the switch positions in dependence on these deviations. | 07-19-2012 |
| 20120106223 | CIRCUIT FOR CONVERTING POWER BETWEEN A THREE-PHASE GRID AND A SINGLE-PHASE GRID - Described is a circuit for converting electric power between a three-phase grid and a single-phase grid. The circuit includes, in at least one embodiment, a first transformer that is connected to the three-phase grid, a number of first converter stages assigned to the first transformer, the associated DC intermediate circuits and the associated second converter stages. The second converter stages are connected to each other at the alternating-current side outputs with the aid of a series connection. | 05-03-2012 |
| 20120063185 | Modular switch for an electrical converter, electrical converter, as well as method for operating an electrical converter - Described is a modular switch for an electrical converter. The modular switch is provided with a first series circuit including a first controllable power semiconductor component and a first diode as well as with a second series circuit including a second diode and a second controllable power semiconductor. The connecting point between the first power semiconductor component and the first diode forms a first terminal and the connecting point between the second diode and the second power semiconductor component forms a second terminal of the modular switch. Also provided is a capacitor, wherein the first series circuit and the second series circuit and the capacitor are switched parallel to each other. | 03-15-2012 |
| 20120006521 | Heat sink for an electronic component - Described is a heat sink for an electronic component. In at least one embodiment, the heat sink includes several cooling fins and carbon nanotubes, present between the top surface of the heat sink and the cooling fins. The carbon nanotubes extend from the top surface of the heat sink in the direction toward one of the cooling fins and are oriented at an angle to the orientation of the associated cooling fin. | 01-12-2012 |
| 20110316332 | Transport vehicle with a plurality of electrical machines - Described is a transport vehicle provided with a plurality of electrical machines and power converters which serve to connect the electrical machines to a DC intermediate circuit. Also provided is a separate power converter for feeding electrical energy into the DC intermediate circuit. All power converters are respectively configured with an identical power electronic module which includes controllable power semiconductor switches, wherein different functions can be achieved through differently activating the power semiconductor switches. | 12-29-2011 |
| 20110220329 | Cooling device and method for cooling an equipment component - Described is a cooling device for cooling an equipment component with the aid of a cooling agent, as well as a method for cooling an equipment component. In at least one embodiment, the cooling device includes a heat source for transferring thermal energy from the equipment component to the cooling agent and a heat sink for dissipating thermal energy from the cooling agent. The heat source and the heat sink are connected to each other. The cooling agent can be supplied via a forward flow line to the heat source and can flow via a return line away from the heat sink. The cooling device includes a control mechanism and two storage containers or a stratified storage tank for the cooling agent. The control mechanism is connected to the two containers and/or the stratified storage tank, the forward flow line and the return flow line. The control mechanism is embodied such that in a “mixed cooling” mode, cooling agent from the two containers or the stratified storage tank is supplied at a mixing ratio to the forward flow line. | 09-15-2011 |
