Improved network stability and grid interaction
- Low harmonics content, network filter not required
- No risk of inter-harmonics
- Easy management of the network power factor even in case of network configuration change
Bringing industry electrification to the next level
With the continuous development of electrification in many industries around the world, Electric Motor Driven (EMD) solutions are now increasing in power and speed, offering new opportunities across multiple applications. Large EMD systems traditionally included Large Load-Commutated Inverter (LCI) drives and synchronous motors. Several breakthroughs of innovation, such as the introduction of large power Voltage-Source Inverter (VSI) drives, have allowed to improve this configuration. GE's Power Conversion business has brought another layer of innovation with high speed induction motors up to 100MW.
Proven technology
A solution offering advantages to the whole system
Compared with traditional synchronous motors fed by LCI, GE's turbo induction motors fed by VSI offer many advantages.
Simplified compressor configuration
- Larger speed range and higher Maximum Continuous Speed (MCS), means more flexibility in compressor design, better efficiency and smaller compressors
- Reduced torque ripple at shaft level
More efficient process
- Higher speed and larger speed range for various applications such as test benches
- No need of separation margin with network frequency thanks to the absence of inter-harmonics
- Low vibration, stable when passing through the first critical speed, simpler rotor, reduced number of critical speeds (no exciter)
- Higher reliability and availability (up to +48% uptime) due to the simplicity of the rotor (non-insulated squirrel cage) and compactness of the motor
Reduced CAPEX
- Reduced filtering for high power applications
- Smaller compressor
- Smaller motor, with less equipment (ex: 10 times less rotating parts on the induction full laminated rotor compared to a synchronous rotor)
- Reduced and lighter supporting structure needed as the induction motor is more compact: smaller footprint (-30%), lower weight (-33%)
Reduced OPEX
- Higher drive-motor-compressor system efficiency, saving of 1% on energy consumption. For example, it can be evaluated at $2.8M for an 80MW machine running full-time for 5 years
- Better power factor management, lower operating energy costs
- Less maintenance & less spare parts because of the simplicity of the induction motor
Power speed range
Learn more about high speed induction motors
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