Wind energy converter
The wind power converter uses the rotor of the doubly-fed asynchronous wind generator to excite, which makes the amplitude, frequency and phase of the stator side output voltage of the doubly-fed generator the same as the power grid, and the active and reactive power can be independently decoupled as required. The converter controls the doubly-fed asynchronous wind generator to realize soft grid-connection and reduce the adverse impact of grid-connection and motor from electric current. It can be said that whether the wind power converter runs stably directly affects the stability of the power grid. How to ensure the normal operation of wind power converter, heat dissipation is an indispensable step.

TONGYU THERMAL is rooted in the R&D of heat dissipation in the new energy field. In the field of wind power converter, we make strategic cooperation with wind power converter manufacturers in domestic and foreign, providing reliable wind power converter, inverter, motor and other cooling technology support. Tongyu met the service requirements from thermal design, thermal simulation to the production integration and integrity, widely praised by wind power manufacturers.
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WIND ENERGY CONVERTER COOLING SOLUTION(DCDC 3000W transient solution)
Converter simulation model and related parameters:
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Converter simulation model and related parameters:
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The infineon internal structure diagram and heating element diagram: diode:34W; IGBT:91W; total 1500W;
Assuming heat-conducting medium:7762 thermal grease, thickness is 0.2mm, K=4W/m*K.
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Heat sink parameter:
           Substrate size:462*220*15mm;
             Fin thickness: 1.5mm;
             Fin qty: 92 fins;
             Fin height:87mm;
             Material: AL1060;
             Process: Skived;
             Runs for 16 cycles, a total of 960s。
Heat sink design simulation model and related parameters
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Working status of heat source:
           0-29s:0%;
             29s-30s:from 0% to 100%;
             30s-59s:100%;
             59s-60s:from 100% to 0%;
             Run 60s circularly at a cycle.
The diagram of Tb temperature over time: ( airflow:500m^3/H)
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The change diagram of surface temperature over time of IGBT core components:
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Airflow: 500m^3/H, IGBT node temperature = core element surface temperature + core element power * core element
The diagram of Tb temperature over time: ( airflow:600m^3/H)
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The diagram of Tb temperature over time: ( airflow:700m^3/H)
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The diagram of Tb temperature over time: ( airflow:800m^3/H)
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The time cycling variation simulation results of highest surface temperature of heat source bottom radiator:
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Simulation results of heat sink pressure loss and flow:
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TONGYU SERVICE PRINCIPLE
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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