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成果報告書詳細
管理番号20170000000104
タイトル*平成27年度中間年報 風力等自然エネルギー技術研究開発 海洋エネルギー技術研究開発 次世代海洋エネルギー発電技術研究開発(海中浮体式海流発電)
公開日2017/4/8
報告書年度2015 - 2015
委託先名三菱重工業株式会社
プロジェクト番号P07015
部署名新エネルギー部
和文要約
英文要約Title : Research and Technical Development of next generation Ocean energy generator(Floating ocean current generator) FY2015 Annual Report

Contents and Results

1 Ground Test

(1) Test outline
Ocean current power generator produces the torque according to the current speed on the rotor phase and rotation frequency. Characteristics between rotation frequency and rotor torque is simulated by a servo motor drive system. The ground test equipment which transmits this output torque to the main shaft consist of connection of flexible coupling and hydraulic pump. Rotational torque is transmitted to the generator by a hydraulic drivetrain constituting a hydraulic pump, a control valve and a hydraulic motor and performs control of starting, system combination and stop by the control valve mounted in the hydraulic drivetrain. In this test, each control sequence of the hydraulic drivetrain and controllability were evaluated.
In addition, the hydraulic drivetrain used in the ground test would be installed to a towing test model

(2) Test result
It is confirmed that the drivetrain behaves according to start and stop sequence without any abnormalities and the system combining at rated current speed is possible.

1.2 Towing Test Model Manufacturing and Assembly

The model of towing test in the ocean was manufactured and assembled. Drivetrain which was used in the ground test was assembled and deployed for towing test.

1.3 Preparation of Towing Test

(1) Evaluation before Towing Test

The assembly of the towing test model was conducted. Weight measurement, launching and water tightness test were carried out for initial evaluation before the towing test.
Water tightness test was conducted in following conditions using leakage detection sensors and IP camera.
a. Keeping 10 minutes in 1.5m depth
b. Keeping 10 minutes in 5.0m depth
c. Repeating two condition in 5 times between 1.5m depth(1 minute) and 5.0m depth(1 minute)

The posture (a pitch, roll) of the towing test model at the time of launching and sedimentation were measured with the attitude sensor installed in the pod, and positioning of the floater installed on the pod was carried out.

1.4 Towing Test
Towing test is scheduled to be conducted in the following fiscal year
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