CONTROL SYSTEM OF GROUP OF ELECTRIC DRIVES WITH PARALLEL CONTROL CHANNELS Russian patent published in 2015 - IPC H02P5/46 H02P5/50 H02P5/74 G05B11/12 

FIELD: electricity.

SUBSTANCE: control system of a group of electric drives with parallel control channels includes a multizone scanning converter consisting of adders, an integrator, relay elements, a setup signal source, smoothing filters, for example of the first order, additional relay elements, voltage controls for smooth start of asynchronous electric motors, water pumps, a discharge water main line, nOR logic element, and "frequency - logic signal" converters. The control system includes n≥3 of an unequal number of "frequency - logic signal" converters and nOR logic element. Inputs of "frequency - logic signal" converters are connected to the output of the corresponding relay element of the group of n≥3 relay elements, and outputs of "frequency - logic signal" converters are connected to the corresponding inputs of nOR logic element, the output of which is connected to the input of emergency trip of voltage controls.

EFFECT: improving operating reliability of a control system of a group of electric drives.

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