AUTOMATION

Danieli Automation MV drives are high performances water cooled vector controlled drives, in three level Neutral Point Clamped (NPC) topology. Active Front End (AFE) line fully regenerative converter allows optimal network impact. QDrives are designed for demanding metals rolling mill applications, with Field Oriented Control (FOC) for synchronous and induction motors, developed with focus on high flexibility, operability and maintenance. QDrive MV Drives meet the following requirements:

• High dynamic performances
• High power rating at low frequencies
• Line power factor = almost 1.0 (AFE version)
• Four-quadrant operation (AFE version)

The line side and motor-side converters use IGBT modules or IGCT disk power semiconductors, the converters ratings range from 4 MVA up to 20 MVA. Main applications are machines and plants in metal and in the process industry, as Fast Finishing Blocks, rolling mill stands, large coilers, fans and compressors. The control structure is based on a powerful, state-of-the-art Danieli Automation Process Automation Controller (DA-PAC), that communicates with power part (modulator boards) with Ethercat optical fiber hi-speed link to ensure control trouble-free operation in the worst EMI environment.The control unit handles the drive system and its auxiliary system, monitoring the transformer, the converter power part and the motor, for safe operation and troubleshooting.