Details

Autor(en) / Beteiligte

• Kwon, J.-M.
• Nam, K.-H.
• Kwon, B.-H.

Titel

Photovoltaic Power Conditioning System With Line Connection

Ist Teil von

• IEEE transactions on industrial electronics (1982), 2006-06, Vol.53 (4), p.1048-1054

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2006

Quelle

IEEE Xplore

Beschreibungen/Notizen

• A photovoltaic (PV) power conditioning system (PCS) with line connection is proposed. Using the power slope versus voltage of the PV array, the maximum power point tracking (MPPT) controller that produces a smooth transition to the maximum power point is proposed. The dc current of the PV array is estimated without using a dc current sensor. A current controller is suggested to provide power to the line with an almost-unity power factor that is derived using the feedback linearization concept. The disturbance of the line voltage is detected using a fast sensing technique. All control functions are implemented in software with a single-chip microcontroller. Experimental results obtained on a 2-kW prototype show high performance such as an almost-unity power factor, a power efficiency of 94%, and a total harmonic distortion (THD) of 3.6%