Aquamarine Power has unveiled the latest design of its Oyster wave energy device which it claims can generate up to 250 per cent more energy than its previous model.
蓝宝石能源已经推出最新的Oyster波浪发电系统，这一新装置可以将原来的发电效率提升250%。
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Stephen Salter, an engineer at the University of Edinburgh, UK, who in the 1970s invented the "nodding duck" wavepowerdevice, says the idea looks sound.
It introduces a kind of powerful complementary DC and constant voltage powerdevice by using the independent excitation and high frequency PWM wave clipper.