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Optimization Control Of Ice Storage Air Condition System

Posted on:2009-05-20Degree:MasterType:Thesis
Country:ChinaCandidate:Z H ChenFull Text:PDF
GTID:2132360245965474Subject:Heating, Gas Supply, Ventilation and Air Conditioning Engineering
Abstract/Summary:PDF Full Text Request
Ice storage air condition system has possess momentous economic benefit and social benefit because it transfered electrical load of air condition,and has the "peak clipping channel fill" function to electric network. But owing to addition of ice storage device to air conditioning system,the system flow intricacy degree is increased and put higher claim to operating project and control system. The method that adopt optimization control strategy and match the peak efficiency,reliable automatic control system is the key to guarantee the farthest running cost saving under the least least dissipation of energy condition in ice storage air conditioning system.Rational equipment lectotype is the principle problem to construction of ice storage air condition system. The paper start with design control strategy closely related to equipment lectotype,then analysed different kinds of factor impact equipment capacity calculation in system,and put consequential amendment formulae to ensure equipment capacity economic and secure.optimization control of ice storage air condition system points to the least running cost of the whole day,seeks equitable distribution project of cold supply between cold generator and ice storage device. And then delivers optimize outcome to automatic control system. The paper banded merit of two kinds of existing optimization control method,creatively put the new optimization control method repose on nonlinear programing. The new method has simple and clear optimization model,and far and away shorten solve hour owing to adoptting general purpose program.Furthermore,amend models of cold generator and ice storage device,and make it conform to practice operating characteristic of new product. The optimistic outcome accuracy is enhanced greatly.Strictly define and classify automatic control system that operates with optimization control of ice storage air conditioning system,and present the specific arrangement of controls of feedback control system. To save running cost farthest,partly amended optimistic outcome under the precondition that optimistic outcome ascertained operation mode.In the end,through analog computation and actual measurement analyses of one engineering example,proofed the validity of optimization control theory of optimization control which repose on nonlinear programing. And compared the result of optimization control and cold generator priority control,and then reach a conclusion:optimization control saves more running cost than cold generator priority control,farther excursion of load distribution,more charge saving. But dissipation of energy of optimization control is more than that of cold generator priority control,farther excursion of load distribution,more energy consumption increaser.
Keywords/Search Tags:ice storage, optimization control, design lectotype, autocontrol
PDF Full Text Request
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