RELAY OF DIFFERENCE IN AMPLITUDES OF GENERATORS CONNECTED FOR PARALLEL OPERATION Russian patent published in 2012 - IPC H02J3/40 

FIELD: electricity.

SUBSTANCE: relay of difference in amplitudes of generators connected for parallel operation comprises the first subtractor, the first comparator with the first actuating element at the outlet and an amplitude detector, the second comparator and the second actuating element, and the amplitude detector comprises a differentiator, an integrator, two elements of signal delay, to multipliers, two division devices, the second subtractor and a unit of rooting.

EFFECT: higher accuracy of synchronisation by amplitude of generators connected for parallel operation due to variation of a sequence of input signals conversion and change of a detection principle, higher accuracy of detection of mismatch in amplitudes of generators connected for parallel operation and twice higher accuracy of synchronisation of these parameters of a board grid voltage.

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