Patent ID: 8198753

Claim:
A method of operating a power system, the power system including a plurality of generator sets and a bus, each generator set including at least a generator and an engine, the method comprising: monitoring at least one generator set that is disconnected from the bus; monitoring the bus; supplying, to a control device, information associated with the operating state of each of the generator sets and information associated with the bus; determining a relative frequency mismatch between the frequency of the bus and the frequency of the generator; multiplying the relative frequency mismatch between the frequency of the bus and the frequency of the generator by a first weight factor to generate a frequency speed bias for the generator set; determining a relative phase mismatch between the phase of the bus and the phase of the generator; multiplying the relative phase mismatch between the phase of the bus and the phase of the generator by a second weight factor to generate a phase speed bias for the generator set; adding the frequency speed bias and the phase speed bias to form a total speed bias; and connecting the generator set to the bus when the voltage, frequency, and phase of the generator are within a permissible range of the voltage, frequency, and phase of the bus.