3 AC 250 - 9000 kW CHH 100 series variable-frequency drive

The CHH100 series high voltage frequency inverter adopts the Multilevel-SPWM control technology to achieve speed control over the high voltage motor.

It adopts a cascade structure and a modular design of electronic building blocks. It also employs a multiple phase-shifting rectification technology which results in less harmonics and a high power factor that can meet numerous power quality requirements. A multiple inverter technology, which minimizes torque pulse and improves the running efficiency of the inverter, is also designed into the system.

Real-time performance is improved through the DSP+CPLD control platform. A built-in PID regulator and terminal programmable function ensure the effective operation of the device. The inverter is also built with a protection function for short circuit, over-current, and over-voltage instances, among other risks.