Development of New Photovoltaic Inverter Technology By MITSUBISHI ELECTRIC
The current photovoltaic (PV) system output power as well as other characteristics is increasingly influenced by the amount of sunlight plus temperature. In a conventional PV arrays, groups of PV modules are connected either in series or parallel, which utilize maximum power-point tracking (MPPT) system for assisting the PV systems to achieve their maximum output power points. However, in this system if part of a PV array is covered in shadow, while the rest of the array is still in sunlight would result in multiple peak points where conventional MPPT system has difficulty in tracking the maximum point. This could be a natural occurrence in urban areas where PV systems are likely to be installed near buildings or other sunlight obstructing objects, where shadow can greatly decrease output power of PV systems. In response to overcome this shortcoming by MPPT system, Mitsubishi Electric has developed a world’s first new photovoltaic inverter technology which is capable of maximizing output power in PV systems through incorporation of new MPPT system in PV inverters. Read more
