Title :
PV assisted DC and AC fluorescent lighting systems compared
Author :
Berg, William M. ; Wiehagen, Joseph
Author_Institution :
Lowell Photovoltaic Program, Massachusetts Univ., Lowell, MA, USA
Abstract :
A comparison is made between efficient fluorescent lighting systems powered by AC and by DC with photovoltaic arrays providing a share of the load. The AC system requires an inverter on the photovoltaic array, and the DC system requires a DC power supply between the grid and the lighting circuit. More photovoltaic power is available for the lighting at all times when the sun is shining with the DC system. The total grid power consumed by each system is a function of power supply and inverter efficiencies, season, and TOD (time-of-day) benefits. The DC system appears to reduce summer utility peaks and summer customer demand charges further than an AC system would
Keywords :
fluorescent lamps; lighting; solar cell arrays; AC fluorescent lighting; DC fluorescent lighting; DC power supply; ballasts; inverter; photovoltaic arrays; Adders; Circuits; Fluorescence; Fluorescent lamps; Inverters; Optical arrays; Photovoltaic systems; Power supplies; Solar power generation; Sun;
Conference_Titel :
Photovoltaic Specialists Conference, 1991., Conference Record of the Twenty Second IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-87942-636-5
DOI :
10.1109/PVSC.1991.169295
