Power quality SVG
The static reactive power compensation device (SVC) is a kind of important equipment for comprehensively controlling voltage fluctuation, flicker, harmonic and voltage imbalance. SVG is a new static reactive power compensation device which is more advanced than SVC. It is an important part of FACTS technology and custom power (CP) technology. It is the development direction of modern reactive power compensation device. They are widely used in power transmission and distribution systems: long-distance power transmission, urban secondary substation (35/110kv), arc furnace, mill hoist and other heavy industry loads, regional power grid, pv power supply, wind farm, electric locomotive power supply and other fields. SVG is a high-heat element, which needs to be combined with a radiator with excellent heat dissipation performance to ensure the stable operation of other elements and increase the working time.

Tongyu thermal has rich technical experience in SVC/SVG cooling and can provide solutions with excellent heat dissipation performance, including providing technical service support in natural cooling, forced air cooling and liquid cooling.
SVG Case Study of Air-cooled Heat Dissipation Solution
Customer SVG heat dissipation design requirements are as follows
Ambient temperature:40℃Style and type:R4D560-AQ03-01
Altitude:3000mOverall temperature requirements:<35℃
Assume IGBT model:Infineon IHV IGBT,1250W/pcs,Common2pcs, Resistor body100W,
total 2600W.
Heat Dissipating Medium Model:I0.2mm
Module Power and Number:7,Total power is2600*7=18200W  
IGBT Model simulation schematic diagram and parameters
IGBT Model simulation schematic diagram and parameters
· The radiator size is 400x380x100mm,Specific Design of Heat Pipe Distribution;
· Use thermal conductive silicone grease between heater and radiator;
· Using wall thickness 1.0MM Customized heat pipe to ensure heat dissipation efficiency;
· 8 branches at the bottom 9.5 mm Heat pipes are grooved and flattened to ensure heat dissipation efficiency;
· Thermal analysis Epoxy thermal conductivity is adjusted to the corresponding data of working limit temperature to ensure the consistency between simulation and practice.;
· All-aluminium radiator Bonded;
· The single weight of the product is about 10%.:22.6Kg;
· Bottom plate FIN Use of tablets AL5052 Thermal conductivity:138 w/m^2 K;
The parameters of radiator fan are as follows
Ebm-papst 560 Fan type,Type is:R4D560-AQ03
Plane schematic diagram of radiator form
Use bonded fin +8 Heat pipe design
Simulation sketch of radiator inlet and outlet air
Drawing of Wind Flow Simulation
Temperature simulation sketch of radiator
IGBT Permutation map   Population wind speed is the middle point of fin shape outer distance of radiator 2~3 cm
Simulating schematic diagram of temperature measuring point of radiator
ItemMaximum temperature℃Inlet wind speed m/sThermal Resistance C/WRadiator simulation data show that the temperature is all in 75℃
Below, the temperature rise is less than 35 degrees Celsius, which meets the requirements set by customers.
Module2 5.390.013
Has a complete integrated service system: including the early engineering and technical personnel to quickly answer the technical advice, to respond to your needs, to develop suitable products for you, to provide reasonable and reliable advice;Commitment to product quality, delivery time, to provide specific cooling solutions.We will continue to strive to provide you with the best quality products and services.
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