06 Oct '11, 9am

ArrayPower: Solar AC Module Enabler Unstealths: A few years ago I came across a PowerPoint presentation circul...

ArrayPower's direct current to pulse amplitude modulated (“PAM”) current converter system consists of distributed power modulators tied into an array controller. The pulse amplitude modulation (PAM) technology "senses the grid and synchs its pulse output" to the amplitude of the 50 Hz or 60 Hz grid waveform. Each unit's waveform is slightly shifted in time. When combined, those rough waveforms yield a grid-quality signal. The firm claims to provide all of the function of a microinverter at the price of a string inverter without the necessity for storage, and hence has no electrolytic capacitors. The design uses standard power electronics components. Nick Cravalho, the newly-hired VP of Business Development said that ArrayPower, "takes cost out of the system and out of the module" while providing "native three-phase for the commercial market. The ArrayPower approach does do...

Full article: http://www.greentechmedia.com/articles/read/ArrayPower-So...

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