A calculation of the starting torque ratio of permanent magnet, series, and shunt-excited DC motors powered by solar cell arrays is presented for two cases, i.e., with and without a maximum-power-point tracker (MPPT). Defining motor torque magnification by the ratio of the motor torque with an MPPT to the motor torque without an MPPT, a magnification of 3 for the permanent magnet motor and a magnification of 7 for both the series and shunt motors are obtained. The study also shows that all motor types are less sensitive to solar insolation variation in systems including MPPTs as compared to systems without MPPTs.
|Number of pages
|Proceedings of the Intersociety Energy Conversion Engineering Conference
|Published - 1989
|Proceedings of the 24th Intersociety Energy Conversion Engineering Conference - IECEC-89. Part 1 (of 6): Aerospace Power Systems and Power Conditioning - Washington, DC, USA
Duration: 6 Aug 1989 → 11 Aug 1989