Aw-Energy Oy

Abb Oy

Vaisala Oyj

Abb Schweiz Ag

Jussi Åkerberg

Arvo Järvinen

Sami Pasanen

Henry Andersson

Kari Kovanen

Juhana Jaatinen

Peter Lindgren

This invention relates to a wave energy recovery apparatus with an energy transfer arrangement comprising at least a base, a reciprocating panel, a pivot shaft for the reciprocating panel, a control system, and a driving and power-take-off (PTO) arrangement equipped with an actuating mechanism (), and one or more power-take-off (PTO) units to convert kinetic energy of waves or tidal currents to another type of energy, each PTO unit comprising a hydraulic power transmission mechanism having hydraulic cylinders with pistons inside the hydraulic cylinders. The pistons are fastened with their free ends to the common connecting plate that is arranged to move all the pistons simultaneously inwards into the hydraulic cylinders and to draw all the pistons simultaneously outwards from the hydraulic cylinders.

Wave energy recovery apparatus with an energy transfer arrangement

This invention relates to an energy transfer arrangement of a wave energy recovery apparatus comprising at least a base, a reciprocating panel, supporting legs and a pivot shaft for the reciprocating panel, and a driving and power-take-off arrangement equipped with an actuating mechanism and one or more power-take-off units to convert kinetic energy of waves or tidal currents to another type of energy, each PTO unit comprising a power transmission mechanism. The actuating mechanism is arranged to transfer the reciprocating motion of the panel mechanically to a linear motion of the power transmission mechanism of each PTO unit.

Energy transfer arrangement of a wave energy recovery apparatus

A solar power plant is disclosed for converting solar energy into electric energy, and having a plurality of solar cell units, each solar cell unit containing a first cell pole and a second cell pole. The cell poles can cooperate for feeding electric energy produced by the solar cell unit as direct current out of the solar cell unit. A direct-current converter can include a plurality of direct-current input poles and two direct-current output poles, each direct-current input pole being connected to at least one cell pole. The direct-current converter can convert input direct currents entered via the direct-current input poles, and having input voltages, into an output direct current having an output voltage, and feed the output direct current via the direct-current output poles out of the direct-current converter. The direct-current converter can include a three-phase inverter unit having three phase poles and two direct-voltage poles, the inverter unit being adapted to serve as a direct-current converter in such a manner that each of the three phase poles are adapted as direct-current input poles and each of the direct-voltage poles is in electrically conductive connection to exactly one direct-current output pole of the direct-current converter.

Solar power plant

This publication discloses a radiosonde system, a radiosonde system receiver and a signal processing method for use in a radiosonde system. The radiosonde system comprises at least one radiosonde () with means for acquisition of position and/or weather data and means for downstream transmission of the data over a radio-frequency path, signal capture means () for reception of the weather and/or position data, and receiver means () for processing the received signals, the receiver means including RF circuit elements () for downconversion of the received signal frequency to a lower frequency known as the first intermediate frequency. According to the invention, the receiver means () include sampling means () performing sampling at the intermediate frequency, at least two digital mixer means () for selective filtration of desired frequency bands from the sampled signal, and processor means () for parallel signal processing at the desired frequency bands.

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Espoo, Finland

Jussi Åkerberg