NEDO, IHI to Begin Long-term Test of Ocean Current Power Generation System (page 2)

2019/07/30 01:00
Sousuke Kudou, technical writer
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The test machine was completed in fiscal 2017, and a short-term verification test was conducted in a sea area of the Black current off the coast of Kuchinoshima.

In the short-term verification test, it was confirmed that the test machine can realize an expected performance while controlling the posture and depth of the machine with an autonomous control system. Also, test data that were collected in an actual sea area and are necessary for future commercialization were obtained (e.g. detailed examination of ocean current characteristics and installation/removal methods).

Based on the results of the short-term verification test in fiscal 2017, in preparation for the long-term verification test, NEDO and IHI (1) improved an autonomous control program that adjusts the angles of the turbine blades and floating body at the time of operation, (2) installed additional current plates for preventing the disturbance of ocean currents and (3) improved heat rejection performance inside the test machine.

Also, from fiscal 2018, NEDO and IHI started to (1) measure ocean currents off the coast of Kuchinoshima (test area), (2) conduct research for grid connection and consider it and (3) conduct negotiations with local communities. They will start installation work off the coast of Kuchinoshima in mid-August 2019, aiming to start operation in the fall of 2019 after test operation, etc.