The optimal products for your flywheel energy storage units, ORC and gas expansion turbines
For motor-driven and generator-driven high-speed applications with high output powers the available standard converter solutions are not sufficient. Up to now converters for output powers > 100 kW and rotating field frequencies > 2,000 Hz were not available on the market – let alone solutions also capable of controlling synchronous motors without sensor.
Due to the German turnaround in energy policy, today such systems are in demand: they enable a significant increase in the efficiency of regenerative systems such as rotating energy storage units (flywheel) and turbomachinery like turbo compressors and other compressors, e.g. for ORC systems to convert waste energy into electric energy. The higher the speeds, the more efficient the systems work.
SIEB & MEYER frequency converters with three-level technology meet these requirements and also ensure low rotor losses. This reduces the bearing load and prevents excessive heating of the motor.
Product Overview
| Device series | Power range | Input voltage | Technology | Speed (ferquency) | Type | Communication | Safety functions |
|---|---|---|---|---|---|---|---|
| SD2 | 1 .. 80 kVA | .. 750 VDC | 2 Level PWM | 120,000 1/min (2,000 Hz) | Single-axis unit with external DC supply | RS485, via Gateway: Profibus, Profinet, EtherCAT | STO |
| SD2M DC | 80 .. 432 kVA | .. 750 VDC | 3 Level PWM | 120,000 1/min (2,000 Hz) | Single-axis unit with external DC supply | RS232/485, Modbus RTU, CAN Bus, EtherCAT, via Gateway: Profibus, Profinet | STO |
Products precisely tailored for your application
With our experience from customized drive systems that are meanwhile produced in large series and as well as our standard devices, we are supporting you from the project planning phase to the series production.