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- W2291456483 abstract "Electric power system simulation and analysis software has been used by energy utilities for the analysis of power quality problems for many years. Power quality problems can be simplistically defined as cases where the electric quantities (voltage or current) diverge from the ideal. Power quality issues involve virtually all aspects of the power system operation, from steady state voltage regulation to the control of high-frequency transients caused by lightning or system switching operations. Since many power quality problems involve complex interactions between the power system, control systems and industrial equipment, simulation tools can be very helpful toward developing an understanding of the dynamics of power quality problems and then evaluating the effectiveness of various solution alternatives. The electric power grid of a ship can be regarded as a small-scale industrial power system. A ship’s electric energy system consists of a generator set and a distribution cabling system serving the loads. In the case of a conventional ship’s power system, there are at least two main AC generators driven by diesel engines, gas turbines or the main propulsion engine. Power is supplied to the electric loads consisting of: • the conventional auxil iary systems similar to an industrial plant (lighting and motors driving rotating machinery) • the main and auxiliary ship propulsion systems. Typical ship electrical networks can operate at 50/60 Hz while naval applications often require 400 Hz systems. Increased electric power demands in ships have led to the introduction of medium-voltage (high in ship terms) operating levels of 3.3 and 6 kV. Recent developments in power semiconductor and power electronics technology and their application in drive and control systems have now enabled the integrated full electric propulsion of ships. The term electric ship now generally refers to a ship with a full electric propulsion system. It is the advent of AC electric propulsion in ships that has introduced a whole new set of power quality complexities on ships." @default.
- W2291456483 created "2016-06-24" @default.
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- W2291456483 date "2005-01-01" @default.
- W2291456483 modified "2023-10-04" @default.
- W2291456483 title "Power Quality On Electric Ships" @default.
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