11 Oct '11, 10am

SPI Themes: The Rise of Solar Balance of System and PV Electronics: Azuray, ArrayPower, Involar, and many other

will be unveiling its "sequenced inverter" and directing it at commercial-scale applications using crystalline silicon modules. The firm's technology is a unique twist on optimizing the power in a solar string. 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. It's been called an "inverterless solar solution" by folks close to the firm and it doesn't fit neatly into the panel level electronics categories we've explored

Full article: http://www.greentechmedia.com/articles/read/SPI-The-Rise-...

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