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Full state feedback control of steam temperature in a once-thorough direct steam generation receiver powered a paraboloidal dish

Zapata, Jose

Description

DSG plants in a once-through configuration convert water into superheated steam suitable for a steam turbine, with a single pass of the fluid through the receiver. The control problem is to manipulate the feed-water mass flow to maintain a desired steam condition (e.g. temperature) under variable solar radiation. This paper presents a full state linear feedback controller for the steam temperature for a once-through direct steam generation system, featuring a 500 m2 paraboloidal dish...[Show more]

dc.contributor.authorZapata, Jose
dc.coverage.spatialBoston, USA
dc.date.accessioned2015-12-10T22:24:43Z
dc.date.createdJune 30-2 July 2014
dc.identifier.isbn9780791845868
dc.identifier.urihttp://hdl.handle.net/1885/53208
dc.description.abstractDSG plants in a once-through configuration convert water into superheated steam suitable for a steam turbine, with a single pass of the fluid through the receiver. The control problem is to manipulate the feed-water mass flow to maintain a desired steam condition (e.g. temperature) under variable solar radiation. This paper presents a full state linear feedback controller for the steam temperature for a once-through direct steam generation system, featuring a 500 m2 paraboloidal dish concentrator and a mono-tube cavity receiver at the Australian National University. The controller manipulates the feed-water mass flow at the receiver inlet to maintain a predetermined specific enthalpy at the receiver outlet, compensating for variations in direct normal irradiation (DNI) and other ambient conditions. The linear controller features three separate regulation mechanisms: a feedforward law to anticipate changes in DNI; a full state feedback loop that uses a state observer for the receiver and an additional output feedback integrator loop for robustness. Experimental results show that the linear controller can successfully control the temperature of the SG4 receiver, provided that it is adequately tuned.
dc.publisherASME
dc.relation.ispartofseriesASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology
dc.sourceASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology
dc.titleFull state feedback control of steam temperature in a once-thorough direct steam generation receiver powered a paraboloidal dish
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2014
local.identifier.absfor090608 - Renewable Power and Energy Systems Engineering (excl. Solar Cells)
local.identifier.absfor091302 - Automation and Control Engineering
local.identifier.ariespublicationa383154xPUB268
local.type.statusPublished Version
local.contributor.affiliationZapata, Jose, College of Engineering and Computer Science, ANU
local.description.embargo2037-12-31
local.identifier.doi10.1115/ES2014-6592
local.identifier.absseo970109 - Expanding Knowledge in Engineering
dc.date.updated2015-12-09T09:18:07Z
local.identifier.scopusID2-s2.0-84912141212
CollectionsANU Research Publications

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