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Evaporative cooling system has the advantage of high cooling performance, good insulation properties, less electrical fault, easy to maintain and high reliability, can meet the requirements of the cooling system in wind power generators. Based on a large number of theoretical researches and engineering practices, we had a comprehensive study of evaporative cooling wind power generator. Studies show...
This paper presents the application of the evaporative cooling technology in the high power rectifier transformer. As the Three Gorges 700MW hydro-generator model needs high-power DC power supply, the evaporative cooling system in three phase bridge non-controlled rectifier is built up. The cooling system of the transformer and the rectifier are connected together. The temperature distribution of...
The experimental research on the plans of solid-filled type and Liquid-filled type mixed medium of a 100 kVA evaporative cooling transformer is done, and test results are compared and analyzed. It is proved that evaporative cooling transformer using mixed medium can not only reduce the cost of transformer, but also improve its economy on the premise of keeping good cooling effect.
Turbo generator with evaporative cooling stator and water cooling rotor possesses many excellent qualities for mid unit. The stator bars and core are immersed in evaporative coolant, which could be cooled fully. The rotor bars are cooled by water inner cooling mode. This paper presents the study of gas-flow and heat-transfer with different features in the turbo generator, and analyzing it by CFD....
Higher power density has been an important goal in the field of power generator. Using evaporative cooling system has made a great progress in making smaller and more powerful generator. As this new technique could improve the cooling effect so that the current density of windings could be set higher and smaller cubage would not bring superheating. It is a great progress, but the slots in the stator...
The optimal design of a 2.4 MVA high temperature superconducting (HTS) generator is presented. The main features of its configuration are the adoption of the evaporative cooling stator and the magnetic flux oriented rotor. The cross section of the field winding in rotor is in circular arch shape, and the magnetic diverter shims are embedded between HTS coils. The technical and economical parameters...
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