ИССЛЕДОВАНИЕ РЕЖИМОВ РАБОТЫ СУДОВОЙ ЭЛЕКТРОЭНЕРГЕТИЧЕСКОЙ СИСТЕМЫ ДВОЙНОГО РОДА ТОКА

Abstract

The article highlights the feasibility of using dual-current systems in ship electrical power systems in conditions of using renewable energy sources. The charts of energy resources of solar and wind energy in Russia have been presented and analyzed. The feasibility of using wind energy in the northern and eastern regions and solar energy in the southern regions has been discussed. Alternative sources on dry-cargo ships, tankers and bulk barges may well provide propulsion energy. Operation of traditional energy sources together with the alternative ones in a combined ship electric power system is provided by the system of dual current type with built-in DC network. The test results of the pilot plant which allows parallel operation of different generators in a dual current system have been described. The experiments included the parallel operation of one generator; load distribution between parallel-running synchronous generators, asynchronous generators, between synchronous and asynchronous generators; load transfer and decommissioning of one of the generators. Parallel operation was carried out on DC network. The load transfer of the synchronous generator can be carried out by changing excitation current, and asynchronous generator - by changing frequency of rotation of the drive motor. It has been found out that the DC network allows: to connect various sources for parallel operation in terms of power, statism, and type of current; to regulate loading by changing the moment on a shaft of the driving engine; to fulfil easier switching to the “built-in” DC network of renewable energy sources.