| In order to improve the system stability and power factor, the Static Var Generator (SVG) device with high power and high energy density have been widely used in the operation of power system. The traditional way of air cooling type has been difficult to ensure the stable operation of SVG equipment, but the water cooling type has been highly regarded. Because the water cooling type has high cooling efficiency, and can effectively avoid some problems such as the oxidation and condensation. So the development of pure water cooling system for the large power SVG device is very necessary, which make this research has very important theoretical significance and engineering value.In this paper, a closed water cooling system for a high voltage and large capacity SVG device, which is the 10kV/±15Mvar chain cascade SVG device, is designed, and the manufacture and test of the water cooling system is completed. According to the space environment and structure characteristics of the electronic equipment, the thermal characteristics of the high power SVG device are analyzed at the chip level, printed board level and system level. A water cooling system which contains a lot of independent cooling unit and the cooling liquid supply unit is designed. The model of the water cooling system is built based on the Pro/E, and the numerical simulation of the temperature field and thermal effect is analyzed by using Icepack software. The simulation results show that the water cooling system can effectively cooling the SVG device and meet the thermal design requirements. The water cooling system were carried out pressure test, pipeline test, water protection test and water plate test, the test results indicate that the water cooling system has high reliability and stability.In this paper, a hot flow field model of the SVG device’s water cooling system is built based on the Pro/E and Icepack software, and a water cooling prototype for the high power SVG device is manufactured. The cooling efficiency tests of the water cooling system is completed based on the testing block. The test data shows that the developed water cooling system of SVG device has the characteristics of high energy density, good cooling effect and working stably. |
