Solar powered actuator with continuously variable auxiliary powe

Details Solar powered actuator with continuously variable auxiliary powe Solar powered actuator with continuously variable auxiliary powe

1982-05-06

1984-12-18

Smith, Jr., David

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 66, 318 46, 318729, 290 1R, 290 4R, H02P 780

Patent

active

044892438

ABSTRACT:
A solar powered system wherein a load such as a compressor (16) is driven by a main induction motor (14) powered by a solar array (10), and an auxiliary motor (18) shares the load with the solar powered motor in proportion to the amount of sunlight available, is provided with a power factor controller (20) for controlling voltage applied to the auxiliary motor in accordance with the loading on that motor. In one embodiment, when sufficient power is available from the solar cell array the auxiliary motor is driven as a generator by excess power from the main motor so as to return electrical energy to the power company utility lines.

REFERENCES:
patent: 4333136 (1982-06-01), Baker

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