Effort to formulate voltage modulation constraints in ship-electrical systems with pulsed loads

Kanellos, FD; Tsekouras, GJ; Prousalidis, J; Hatzilau, IK

dc.contributor.author	Kanellos, FD	en
dc.contributor.author	Tsekouras, GJ	en
dc.contributor.author	Prousalidis, J	en
dc.contributor.author	Hatzilau, IK	en
dc.date.accessioned	2014-03-01T02:08:43Z
dc.date.available	2014-03-01T02:08:43Z
dc.date.issued	2012	en
dc.identifier.issn	20429738	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29724
dc.subject.other	Critical parameter	en
dc.subject.other	Design tool	en
dc.subject.other	Electric systems	en
dc.subject.other	High-power	en
dc.subject.other	Power supply quality	en
dc.subject.other	Pulsed load	en
dc.subject.other	Pulsed loading	en
dc.subject.other	Ship electric power systems	en
dc.subject.other	Short time intervals	en
dc.subject.other	Simulation model	en
dc.subject.other	Theoretical explanation	en
dc.subject.other	Voltage modulations	en
dc.subject.other	Circuit theory	en
dc.subject.other	Computer simulation	en
dc.subject.other	Electric loads	en
dc.subject.other	Frequency modulation	en
dc.subject.other	Ships	en
dc.title	Effort to formulate voltage modulation constraints in ship-electrical systems with pulsed loads	en
heal.type	journalArticle	en
heal.identifier.primary	10.1049/iet-est.2010.0068	en
heal.identifier.secondary	http://dx.doi.org/10.1049/iet-est.2010.0068	en
heal.publicationDate	2012	en
heal.abstract	One of the most significant power supply quality problems in ship electric networks is 'voltage and frequency modulation'. It is caused by the operation of certain electric loads, known as 'pulsed loads', which require regularly or randomly repeated high power for short time intervals. To the best of the authors' knowledge, no well-based theoretical analysis of the phenomenon exists, while regarding standards, any existing constraints in the operation of pulsed loads are not properly explained. In a series of two companion papers the theoretical analysis of the phenomenon is made; the first paper investigates frequency modulation, whereas this second paper deals with the analytic estimation of voltage modulation. First the theoretical explanation of the voltage modulation is established highlighting the critical parameters affecting it. Next, a suitable constraint inequality is derived comprising several inherent parameters of the ship electric system affecting voltage modulation. Furthermore, a sensitivity analysis of the particular effect of each of these system parameters is made. The proposed method can be a useful guide for setting limits via standards and a design tool for ship electric power systems enabling the performance of investigation studies of acceptable pulsed loading without the need of complicated simulation models. © 2012 The Institution of Engineering and Technology.	en
heal.journalName	IET Electrical Systems in Transportation	en
dc.identifier.doi	10.1049/iet-est.2010.0068	en
dc.identifier.volume	2	en
dc.identifier.issue	1	en
dc.identifier.spage	18	en
dc.identifier.epage	28	en