Multi-drive solar-tracking photovoltaic system

A method, comprising:

• delivering a first electrical power input to a first motor drive, wherein the first motor drive is coupled to a first driven end of a first torque tube portion of a torque tube extending along a longitudinal axis of a solar-tracking photovoltaic (PV) system, and wherein the solar-tracking PV system includes a plurality of PV modules mounted on the torque tube;
• delivering a second electrical power input to a second motor drive independent from the first electrical power input to the first motor drive, wherein the second motor drive is coupled to a second driven end of a second torque tube portion of the torque tube, wherein the torque tube comprises a torque tube coupler between the first torque tube portion and the second torque tube portion, wherein the torque tube coupler has a center with a largest circumference the same as a circumference of the first and second torque tube portions and has ends each having a smallest circumference less than the circumference of, and each end circumferentially surrounded by, a respective one of the first and second torque tube portions such that the torque tube has a same outermost circumference throughout an entirety of the torque tube;
• monitoring the first electrical power input and the second electrical power input.