Power and Voltage ? 2.3 kV：150 kW–4 000 kW ? 3.3 kV：250 kW–6 000 kW ? 4.16 kV：315 kW–7 500 kW ? 6.0 kV：450 kW–9 000 kW ? 6.6 kV：500 kW–10 000 kW Power topology ? Rectification side: 18 pulse SCR rectifier bridge (or optional AFE PWM rectifier), which can meet the harmonic requirements of IEEE519-1992 without the need for an input isolation transformer; THDi ≤ 5 %， Input power factor ≥ 0.95. DC link: Current source type DC reactor (CSI) or voltage source type DC bus capacitor (VSI), combined with SCR/SGCT inverter bridge to output a three-phase power supply with variable frequency and voltage. Inverter side: Each phase is composed of 6-18 SCR/SGCT series connected, with a voltage redundancy of ≥ 2.5 times. Fiber optic triggering and self powered gate drive (SPGDB) ensure high dv/dt anti-interference. Control method Sensorless vector control: speed accuracy ± 0.5%, torque linearity ± 2%, continuous operation above 6 Hz. Full vector closed-loop: Incremental or sine cosine encoder, capable of outputting 150% rated torque at 0.2 Hz, with a speed bandwidth of 5-25 rad/s and a torque bandwidth of 15-50 rad/s. Soft start/soft stop: By controlling the SCR trigger pulse through phase angle, smooth pre charging and reduced surge current can be achieved without the need for an external soft starter. Hardware Features ? Air cooling/liquid cooling options: Air cooling frame (B/C/D), liquid cooling frame (L) with higher power density, IP42/IP54 chassis, reducing footprint by 30-50%. Self diagnostic fiber optic ring: Each OIB board can monitor 6 SCR devices, perform real-time temperature, gate status, and self check of blocking voltage. ? Safety: Built in Safety Torque Off (STO), SIL3/PLE; Optional Safety Speed Monitoring (SSM)
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