Liuzhou Saic oil pump controller


Liuzhou Saic Oil Pump Controller

The Liuzhou Saic Oil Pump Controller is a vital component in the operation of oil pumping systems, it's already in mass production over 3 years.

 

Control features: FOC using flux-linkage or slip-flux observers eliminates the need for position vectors, thereby reducing the cost of position sensors; switching frequency (10K–20K) and low-loss modulation algorithms; strong load adaptability, smooth speed control (±0.5%), and a maximum acceleration of 9000 rpm/s; adaptive starting torque with automatic adjustment of start-up time and torque, resulting in short start-up times; High-Frequency Injection (HFI) algorithm suitable for low-speed operation (50–300 rpm); Weak Field (FW) control algorithm to increase motor speed; Overmodulation for speed enhancement + MTPA algorithm for improved efficiency;

Fault protection: protection against oil pump cavitation; overvoltage, overcurrent, overload and stalled rotor protection; rotor out-of-step detection protection; phase current imbalance and phase loss detection; in over-temperature protection mode, operation at reduced fundamental frequency is possible to minimize switching device losses.