SIMULATION OF ACTIVE POWER DISTRIBUTION SYSTEM BETWEEN SHIP GENERATORS

Abstract

The review of power distribution issues between generators operating in parallel in multigenerator systems is carried out together with the analysis and elaboration of issues of increasing the fuel efficiency of the power system. In accordance with the requirements of Annexes IV, VI to the 1997 Protocol to the International Convention for the Prevention of Pollution from Ships (MARPOL) and the provisions on energy efficiency of ships, adopted by the Marine Environment Protection Committee of the International Maritime Organization (IMO MEPC), a number of avoidance requirements release of oil-containing products into the marine environment (Annex IV) and reduction of carbon dioxide emissions into the atmosphere by maritime transport facilities (Annex VI). It is known that the frequency and voltage of the generator depends on the speed of the diesel engine and the excitation voltage of the generator. In turn, the stability of the diesel engine is ensured by regulating the fuel supply. Thus, the achievement of the most economically advantageous mode of operation of the power system, taking into account the requirements of energy security, dictates the need to organize highquality regulated operation of power units. Modeling of the microprocessor system of active power distribution between the generators of the ship power system was carried out based on the results of the analysis of the process of active power distribution between the generators operating in parallel according to the following parameters. The network load was active and active-inductive in nature with a capacity of 200 kW and 100 kW and 200 kW. The power of each generator was 315 kW To study the transients that occur in the network after the synchronization of generators under different conditions, we used a model of two generators, created using the package MatLab 6.5. The model of the active power distribution system is presented in the form of a digital finite automatic machine, which generates a signal to change the position of the fuel rail of the drive diesel unit depending on the current load of the generator. Simulation of the process of active power distribution showed that when the period of the clock signal supplied to the digital machine is reduced, the system has unquenchable fluctuations of active power between the generators.