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The article analyzes the influence of the disproportionate distribution of active and reactive components of the total electric power on the coefficients of the capacities that fall on each of the DGS operating in parallel. Expressions are given showing the dependence of load power factor for a generator set from nature of the total electrical load and the ratio of distributed generators active and reactive components of load current. It is shown that proportional distribution of the load, the power factors of the loads attributable to each of the DGS operated in parallel are the same and equal to the power factor of the total electrical load. Produced an overview of the requirements of the classification societies to how should be distributed the load between the parallel running of diesel generator units, for example, Rules for the classification and construction of sea-going ships of Russian Maritime register of shipping, and permissible deviations from the required distribution of the electric load. The possibility of using the method of disproportionate distribution of the electric load between parallel diesel generator sets, but within the permissible deviations, to reduce the total specific fuel consumption, in view of the difference in the characteristic dependence of the specific fuel consumption q(P, cosФ) on the load power and power factor for each generator set, which take place even for the generating units of the same nominal power and series, and, in particular, for a long period of operation, is analyzed. An example of proportional and disproportionate load distribution for two generator sets of different rated capacities with specified values of the total load current, the ratio of the nominal capacity of the generators (coefficient of proportionality) and the pre-determined load distribution between them is given.

vestnik gosudarstvennogo universiteta morskogo i rečnogo flota imeni admirala s. o. makarova/vestnik gosudarstvennogo universiteta morskogo i rečnogo flota imeni admirala s.o. makarova

ANALYSIS OF INFLUENCE OF NON-PROPORTIONAL DISTRIBUTION OF LOAD BETWEEN PARALLELLY OPERATING GENERATORS FOR THE POWER FACTOR OF LOADING OF EACH GENERATOR