Industry
这里是标题一h1占位文字
Permanent Magnet Direct Drive (PMDD) Motor Used in New Energy Industry
Case Study
| 10kV 630kW Permanent Magnet Direct-Drive Motor in Sand Mill Grinding Applications |  |
Project Background
One of top tier New Energy company partnered with Jasung to replace traditional gearbox-driven systems with high-voltage permanent magnet synchronous motors (PMSM) in their large-scale sand milling production lines. The goal: eliminate transmission losses, reduce downtime, and cut energy costs by 20%+ in precision grinding operations.
Why Permanent Magnet Direct-Drive?
• Energy Savings
20% lower power consumption vs. induction motor + gearbox systems.
Near-unity power factor (>0.95) reduces reactive power penalties.
• Zero Transmission Losses
Direct coupling to the mill shaft eliminates gears, couplings, and belts.
98% system efficiency (vs. 85–90% for conventional drives).
• Precision Control
±1 RPM stability via integrated vector control, critical for particle size consistency.
Instant torque response (<50ms) prevents material agglomeration.
• Maintenance-Free Operation
No lubrication or gear wear – 90% fewer mechanical failures reported.
50,000+ hour bearing life with predictive maintenance alerts.
High-Voltage Design: 10kV operation minimizes current losses in long cable runs.
Cooling System: Water cooling maintains <65°C winding temperature.
Onsite video
Related Industries
Tel: +86-400-686-9980
Address: No. 108, Changtang Road, Wujin District, Changzhou, Jiangsu, China