More and more often, variable frequency drives (VFDs) are used for control of fans and compressors in HVACR systems. The benefits are well documented and industry acceptance is such that most electric ...

Proportional-Integral-Derivative (PID) controllers represent a cornerstone in the field of control systems engineering, providing a versatile and robust method for regulating industrial processes. The ...

Well designed conventional PID controllers using Ziegler-Nichols method are having large overshoot and settling time. Significant research work has been carried out to improve the performance of ...

Single VFDs are often integrated into new and existing applications due to the huge amount of energy savings and programming benefits. Specialty pump drives often go above and beyond the requirements ...