Kefin Kwamfyuta Da Duk Da Kwaikwayo Don Tashar Turbin Masu Inganci Wajen Yakin IEE-Business Da Kiyaye Tsari & Yaukata Lafiya Masu Inganci
Ⅰ. Nkàsịrị isi
Na ụdị na mkpa ụfọdụ transformers n'otu ọgbọ sitere, ọtụtụ asụsụ a bụ ụzọ dị ka:
- Aghọta ọhụrụ: Aghọta nke ọma, aghọta nke ọmụmụ.
- Okwu ezie: Nke ukwuu dị ka ọbụnadị ọgụgụ.
- Okwu oyi: N'ọnụ ọhụrụ ma ọ bụ n'ụlọ site obi okwu oyi ≥40°C.
II. Nkàsịrị isi
(A) Nkàsịrị isi Thermal Simulation & Design Optimization
- Thermal Digital Twin Model
- Nwee ihe ọṅụ CFD (FloTHERM/Star-CCM+) maka ụdị 3D thermal-fluid coupling.
- Malitere ọṅụ oil flow paths, winding hot-spot distribution, ma ọ bụ radiator efficiency.
- Nchekwa ụzọ dị ka: Nwere >15% hotspot temperature reduction maka heat dissipation structure adjustments.
(B) Customized Cooling System Design
|
Cooling Method |
Technical Solution |
Applicable Scenarios |
|
Natural Cooling |
► Biomimetic heat sink design (fin density gradient distribution) |
Standard load, low ambient temperature |
|
Forced Air Cooling |
► Vortex axial fan array (IP55 protection rating) |
High-altitude/high-temperature environments, periodic overloads |
|
Forced Oil Circulation |
► Magnetic levitation oil pump (energy consumption <30% of conventional pumps) |
Submerged arc furnace transformers, traction rectifier transformers, marine transformers |
|
Heat Pipe Assisted |
► Embedded ultra-thermal conductive heat pipes (thermal conductivity >5000 W/m·K) |
Space-constrained high-density winding regions |
(C) Oil Flow Control Optimization
- Enhanced Oil Guiding Design:
A[Oil Inlet] --> B[Silicon Steel Guide Channels]
B --> C[Axial Winding Oil Ducts]
C --> D[Hotspot Reinforced Spray Nozzles]
D --> E[Top Oil Outlet]
- Nwere ≥300% increase in oil flow velocity in hotspot regions, resulting in 8-12K temperature reduction.
(D) Intelligent Temperature Control System
|
Functional Module |
Technical Implementation |
|
Monitoring System |
► Distributed Optical Fiber Temperature Sensing (±0.5°C accuracy) |
|
Control Strategy |
► PID stepless speed control for fans/oil pumps (20-100%) |
|
Smart IoT |
► IEC 61850 communication protocol |
III. Target Outcomes & Verification Standards
- Temperature Control
- Winding Hotspot Temperature: ≤95°C (rated load) / ≤115°C (2-hour emergency overload)
- Top Oil Temperature Rise: ≤45K (compliant with IEC 60076-7)
- Lifespan Assurance
- Based on the 10°C Rule (Montsinger's Rule):L = L₀ × 2^[(98°C - T_hotspot)/6]
- Ensures insulation thermal aging <20% over the 30-year design lifespan.
- Efficiency Improvement
- Reduced No-Load Losses: 12% reduction (low eddy current design)
- Cooling System Energy Consumption: <5% of total losses
IV. Typical Application Scenarios
|
Special Transformer Type |
Thermal Management Solution Combination |
|
Arc Furnace Transformers |
Forced Oil Circulation + Water Cooling + Heat Pipe Assistance |
|
Traction Rectifier Transformers |
Forced Air Cooling + Intelligent Multi-stage Speed Control |
|
Offshore Wind Power Transformers |
Sealed Heat Pipe Cooling System + Triple-protection Coating (Anti-corrosion/Anti-fouling/Anti-moisture) |
|
Data Center Cast-Resin Transformers |
Fan Group Control + CFD-based Airflow Optimization |
