The Magnetic Energy Harvester With Improved Power Density Using Saturable Magnetizing Inductance Model for Maintenance Applications Near High Voltage Power Line
| Autor: | Sungryul Huh, Ja-Il Koo, Haerim Kim, Seongho Woo, Dongwook Kim, Yujun Shin, Hyun Ho Park, Jongwook Kim, Bumjin Park, Jae-Hyoung Park, Seungyoung Ahn, Andres Brito, Ok-Hyun Jeong |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
General Computer Science 02 engineering and technology 01 natural sciences law.invention law magnetic saturation 0202 electrical engineering electronic engineering information engineering General Materials Science Power density Load bank Magnetic energy Energy harvesting business.industry 020208 electrical & electronic engineering 010401 analytical chemistry smart sensor General Engineering Electrical engineering High voltage TK1-9971 0104 chemical sciences Power (physics) power line Inductance Electric power transmission power supply magnetic material Electrical engineering. Electronics. Nuclear engineering Resistor business |
| Zdroj: | IEEE Access, Vol 9, Pp 82661-82674 (2021) |
| ISSN: | 2169-3536 |
| Popis: | Recently, maintenance applications around power lines have been actively studied. These applications usually supply power through magnetic energy harvesting(MEH) to devices around the power line. A major challenge for practical MEH is to overcome magnetic saturation, which can cause degradation of power density under a wide current range in the power line. In this paper, we propose a design methodology to harvest maximized output power by considering the saturation effect. To consider magnetic saturation, the output power model and the saturable magnetizing inductance model based on magnetizing current were comprehensively analyzed. Additionally, the critical point of saturation for the maximum harvested power was analyzed by considering different primary side current conditions. With the proposed design methodology, the accuracy and efficiency of the output model were verified with experimental results compared to the conventional model. To consider the real environment, a 150 kW class of AC resistor load bank was implemented to control the primary current from 0 to 100 A with power frequency of 60 Hz. Experimental results show that the proposed method can harvest an average power of 14.32 W on 70 A power line, which is an increase of 39.8 % compared with the conventional design method. |
| Databáze: | OpenAIRE |
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