offshore measurement system for wave power—using current loop feedback
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ID: 206545
2016
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Abstract
This paper presents the design and testing of a measurement system for wave power generators. The work is part of a project to build a robust and cheap measurement system for offshore monitoring of wave power farms. Due to the harsh offshore environment, low accessibility and high cost for installation and maintenance, it is of key importance to minimize power consumption, complexity and cost of each measurement unit. For the first prototype, the objective was to measure voltage, current and translator position inside the linear wave power generator. For this, two printed circuit boards (PCBs) were developed, using a two wire current loop transmitter setup. They were tested separately and in a three phase setup inside a wave power generator during onshore tests. To ensure stability, speed and accuracy in the signal transfer, the PCBs were tested for linearity, frequency response and step response. In addition, power consumption was measured, for operational time evaluation. Results show good agreement between expected and measured performance, with an input range of ±1560 V and ±420 A for alternating current measurements and a bandwidth of 10 kHz and 7 kHz, for voltage and current measurements, respectively. The power consumption was measured to 0.5 W for each measurement unit, at 24 V feed.
| Reference Key |
ulvgrd2016electronicsoffshore
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|---|---|
| Authors | ;Liselotte Ulvgård;Tobias Kamf;Mats Leijon |
| Journal | biology bulletin of the academy of sciences of the ussr |
| Year | 2016 |
| DOI |
10.3390/electronics5040086
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| URL | |
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