DIRECT CURRENT GENERATION PLANT Russian patent published in 2009 - IPC H02P9/30 

FIELD: electrics.

SUBSTANCE: invention concerns electric equipment of cars and track vehicles and can be applied as power source in electric supply system. Effect is intended for construction simplification and improvement of onboard network power quality. Effect is achieved by generation plant including direct current generator, excitement relay and voltage controlled with key transistor feeding exciting coil of generator, two amplifier cascades on transistors and gauge device including voltage splitter consisting of upper and lower arm, and stabilivolt with resistor. Additionally the plant includes diode connecting generator output to accumulator, so that diode anode is connected to generator output and cathode is connected to positive accumulator output, and voltage controller circuit includes additionally two transistors, two resistors connected in sequence to collector chains of transistors, potentiometre connected parallel to diode linking generator output to accumulator, with middle output of potentiometre connected to base of first additional transistor, emitter of which is connected to anode of diode parallel to potentiometre, and collector with second additional transistor base and one resistor output, the second output of which is connected to negative bus of voltage controller, second additional transistor connected together by resistor to collector chain are connected parallel to upper arm of voltage splitter in voltage controller. Addition of diode connecting generator output to accumulator allows exclusion of reverse current relay or device with its functions, and differential minimum relay from generation plant circuit, thus simplifying construction and layout of generation plant. At the same time the diode (when voltage drops) can be used as current indicator, and addition of two extra transistors, two resistors and potentiometre to voltage controller layout allows using voltage controller for generator current limitation as well, thus simplifying controller relay construction, and generator current is limited by electronic means.

EFFECT: enhanced system response rate, reduced pulsation of onboard network voltage with current limitation, improved quality of power supply in onboard network.

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