Abstract:
A method comprises storing (201), in an automated power conversion device (101), operational information on the usage of the automated power conversion device (101), and information on user-adjustable parameter settings of the automated power conversion device (101). A local terminal device (105) receives (203) the operational information and the information on the user-adjustable parameter settings from the automated power conversion device (101), and forwards (204) said information to a remote network node (109) via a communications network. The received information is analyzed (205) in the remote network node (109), and based on the analysis the remote network node generates (205) a recommendation on an optimal set of user-adjustable parameters regarding the automated power conversion device (101). The generated recommendation is transmitted (206) from the remote network node (109) and received (207) in the local terminal device (209).
Abstract:
Es wird ein Umrichterkühlsystem zur Kühlung mittels eines Kühlfluids angegeben, welches Umrichterkühlsystem einen Wärmetauscher (1) und einem parallel zu dem Wärmetauscher (1) vorgesehenen Kühlfluidbypasspfad (2) aufweist, wobei ein der Regulierung der Kühlfluidmenge dienendes Regulierungsventil (3) einen ersten Verbindungspunkt (4) bildet, an dem der Kühlfluidbypasspfad (2) mit dem Wärmetauscher (1) verbunden ist, und wobei der Kühlfluidbypasspfad (2) mit dem Wärmetauscher (1) an einem zweiten Verbindungspunkt (5) verbunden ist. Desweiteren ist eine Pumpeinheit (6) zur Zirkulation des Kühlfluids, wobei eine Ausgangsseite der Pumpeinheit (6) mit dem ersten Verbindungspunkt (4) verbunden ist. Zudem umfasst das Umrichterkühlsystem einen Filterpfad (7), der an einem dritten Verbindungspunkt (8) mit einer Eingangs-seite der Pumpeinheit (6) verbunden ist und der mit dem zweiten Verbindungspunkt (5) verbunden ist, wobei im Filterpfad (7) eine Filtereinheit (9) vorgesehen ist, mit einem Kühlfluidzulaufpfad (10), der mit dem dritten Verbindungspunkt (8) verbunden ist. Ferner ist ein Kühlfluidablaufpfad (11) mit dem vierten Verbindungspunkt (12) verbunden, wobei im Kühlfluidzulaufpfad (10) und/oder im Kühlfluidablaufpfad (11) eine Temperaturerfassungseinheit (13) und eine Druckerfassungseinheit (14) vorgesehen sind, und wobei eine Kühlfluidleckageauffangeinrichtung vorgesehen ist, die einen Leckagedetektor aufweist.
Abstract:
A method for operating an anchor winch and an anchor winch for a vessel (100), comprising a winch drum (20) and an electric drive (30, 40, 41) configured to raise the anchor (11) by driving the winch drum (20) with an electric motor (30), to detect a first increase in a torque produced by the electric motor (30), which is higher than a first predetermined torque threshold, a subsequent decrease in the torque produced by the electric motor (30), which lasts for at least a predetermined time threshold and during which decrease a rate of decrease is within a predetermined range, and a subsequent second increase in the torque produced by the electric motor (30), which is higher than a second predetermined torque threshold, and, in response to detecting the second increase, determine that the anchor (30) has risen above a water surface (200) of a body of water.
Abstract:
A method is disclosed in one embodiment for discharging DC link capacitors. In one form the method includes switching a first half bridge of a first converter unit to a positive state, in which its AC output is connected with its positive DC output, and simultaneously switching a second half bridge of a second converter unit to a negative state, in which its AC output is connected with its negative DC output, such that a DC link capacitor of the first converter unit and a DC link capacitor of the second converter unit are interconnected oppositely to each other and discharged via the electrical filter.
Abstract:
The invention relates to a cooling apparatus (1) comprising a base plate (2) for receiving a heat load from an electric component (4), an evaporator (5), a condenser (9), and a connecting piece (8) for passing fluid (7) from the evaporator (5) to the condenser (9). In order to efficiently fill the evaporator, the cooling apparatus is provided with a pump (12) for pumping fluid (7) from the condenser (9) to the evaporator (5).
Abstract:
According to an example aspect of the present invention, there is provided a capacitor block (1) comprising - a plurality of electrolytic capacitors (2) arranged in at least one row, each capacitor (2) comprising a support (14) protruding from a casing of the capacitor (2) in a direction radially outwards relative to a center axis (15) of the capacitor (2), a capacitor holder (4), wherein each capacitor (2) is mechanically connected to the capacitor holder (4) via the support (14), and wherein between at least two capacitors (2) a fluid channel (6) is arranged in each row.
Abstract:
A power electronic assembly comprising a power electronic module incorporating multiple of semiconductor power electronic switch components, the power electronic module comprising a base plate, the power electronic assembly comprises further a cooling arrangement for cooling the power electronic module, the cooling arrangement comprising a cooling surface adapted to be attached against the base plate of the power electronic module. The power electronic assembly comprises further a carbon based material layer, which is arranged between the base plate of the power electronic module and the cooling surface of the cooling arrangement the carbon based material layer being adapted to compensate flatness deviations of the base plate of the power electronic module and to transfer heat from the power electronic module to the cooling arrangement.