world-first wave energy project in WA a great success

An excellent recent description from ABB of how the systems work

According to ABB Control System Engineer Sam Bagherzadeh, the system relies on a brand-new philosophy invented by Carnegie and implemented by the ABB team.

“The main point in optimising the electricity generated is to optimise the differential pressure between the high-pressure and low-pressure sides of the hydraulic motor. This logic is quite sophisticated,” Bagherzadeh explained.
“During the commissioning, we slightly modified the logic that we had designed and adjusted the parameters in the control loops. Our logic was able to satisfy all the tests that Carnegie conducted on-site.”

An important specification for the ABB-designed portion of the PWEP was that it was able to provide fast data logging, meaning the control system needed to read and log the majority of analog values at a 100 Hz sample rate.

http://www.processonline.com.au/con...ergy-project-in-wa-a-great-success-1014307811