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Single phase solar micro-inverters aim at the residential and commercial rooftop applications. It would be advantageous to extend the micro-inverter concept to large size PV installations such as MW-class solar farms where three-phase AC connections are used. Unlike single-phase systems, where a bulky power decoupling capacitor is required to buffer the fluctuated injected power, balanced three-phase system draws constant power from the three-phase micro-inverter, which will minimize the DC link capacitance and allow for the long lifetime capacitors to be used. More specifically, the three-phase distributed AC micro-inverter architecture would offer the following advantages: * Ease of installation through flexible and modular solar farm design: Micro-inverters would greatly reduce installation costs associated with wiring, cabling, DC bus disconnections, and large size inverters since each micro-inverter would generate AC power that could be directly coupled to the grid; * Improved reliability by effectively reducing the number of components per watt compared to that of equivalent single-phase AC modules; * Reduced in dollars per watt since one inverter is now amortized over higher level of power; * Finally eliminated the need of an expensive custom AC cable that is required to balance the number of single phase inverters per phase. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Three-phase micro-inverter」の詳細全文を読む スポンサード リンク
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