Abstract: A communication network and a power converter cabinet including a control unit, a power switch, a sensor and wherein the first communication point is connected to the control unit inside the power converter cabinet, and the second communication point is connected to the power switch, and a sensor inside the power converter cabinet. The communication network includes: a first antenna configured to wirelessly transmit/receive in the mm-wave frequency band, and a second antenna configured to receive/transmit wirelessly in the mm-wave frequency band, wherein the first and second communication points are configured to set up a communication link with multiple propagation paths, to send data between different active devices inside the power converter cabinet.

Abstract: A communication network and a power converter cabinet including a control unit, a power switch, a sensor and wherein the first communication point is connected to the control unit inside the power converter cabinet, and the second communication point is connected to the power switch, and a sensor inside the power converter cabinet.

Abstract: A power electronic converter for converting electric energy and a method for controlling a power electronic converter are disclosed. The converter includes a plurality of PE switches, and a control system adapted to transmit control information to the PE switches. The control system includes a master controller and a plurality of local controllers controlling the PE switches. The control system further includes one or more slave devices controlled by the master controller. The control system is configured so that the master controller and the one or more slave devices are connected in a ring network topology. Each slave device and one or more of the local controllers are connected in a star network topology.

Abstract: A power electronic converter for converting electric energy and a method for controlling a power electronic converter are disclosed. The converter includes a plurality of PE switches, and a control system adapted to transmit control information to the PE switches. The control system includes a master controller and a plurality of local controllers controlling the PE switches. The control system further includes one or more slave devices controlled by the master controller. The control system is configured so that the master controller and the one or more slave devices are connected in a ring network topology. Each slave device and one or more of the local controllers are connected in a star network topology.

Abstract: A transmitting node in an industrial wireless network transmits a first number of bits to a receiving node, where at least one bit is partitioned into segments and each segment is transmitted at a different frequency according to a frequency transmission scheme. The receiving node receives the number of bits, determines the quality of each segment of a received bit, collects quality determinations of segments, forms a quality measure for each frequency through combining quality determinations of the corresponding frequency, compares each quality measure with a quality measure criterion, determines at least one frequency that does not fulfill the quality measure criterion and informs the transmitting node about frequencies for which the corresponding quality measures do not fulfill the quality measure criterion. The transmitting node receives the information and updates the frequency transmission scheme.

Abstract: A method for controlling a plurality of power converters connected to a power supply network is described. Each power converter includes high-power semiconductor devices. Control signals are sent between a controller and a wireless node of one or more of said plurality of power converters using a wireless communication system. The control signals are transmitted to a local wireless node of one or more of a plurality of power converters. The data transmissions include data packets including control information such that a clock of the local wireless node can be synchronized using time synchronization information of the wireless communication system. In other aspects of the invention a system employing the method and a computer program for carrying out the method are described.

Abstract: A transmitting node in an industrial wireless network transmits a first number of bits to a receiving node, where at least one bit is partitioned into segments and each segment is transmitted at a different frequency according to a frequency transmission scheme. The receiving node receives the number of bits, determines the quality of each segment of a received bit, collects quality determinations of segments, forms a quality measure for each frequency through combining quality determinations of the corresponding frequency, compares each quality measure with a quality measure criterion, determines at least one frequency that does not fulfill the quality measure criterion and informs the transmitting node about frequencies for which the corresponding quality measures do not fulfill the quality measure criterion. The transmitting node receives the information and updates the frequency transmission scheme.

Abstract: Exemplary embodiments of a communication system for a power electronic converter with a plurality of converter modules includes controllable power semiconductor switches and individually mountable onto a converter cabinet or frame. The communication system includes unguided transmission of optical signals between optical elements arranged on a converter module and on the converter cabinet, respectively. The communication system provides a free-space optical signal transmission between two distinct parts of the converter that combines the flexibility offered by radio transmission and the data rate and reliability of optical communication, while at the same time avoiding the complex and expensive cabling of optical fiber solutions.

Abstract: A method for controlling a plurality of power converters connected to a power supply network is described. Each power converter includes high-power semiconductor devices. Control signals are sent between a controller and a wireless node of one or more of said plurality of power converters using a wireless communication system. The control signals are transmitted to a local wireless node of one or more of a plurality of power converters. The data transmissions include data packets including control information such that a clock of the local wireless node can be synchronized using time synchronization information of the wireless communication system. In other aspects of the invention a system employing the method and a computer program for carrying out the method are described.