• Pradeep Kumar S
• Dr. Dinesh M N

The rising popularity and demand for electric vehicles have been increasing rapidly in recent years. The EV motor before being installed in the vehicle is to be analyzed and calibrated by emulating the real-time load conditions in a dyno test bench. The EV motor being tested – Device Under Test (DUT) is required to operate in an error-free control system for the performance analysis. The Field Oriented Control (FOC) algorithm suits the required motor control criteria to operate the motor with direct torque control and field weakening control. The FOC algorithm is developed in LabVIEW using cRIO9046, FPGA modules NI9223(Analog input module – 1MS/s) and NI9401(Digital IO – 10MHz) to process at 47us operating in real-time. The PMSM motor is considered a DUT motor, the control of the DUT motor is achieved in torque mode to test DUT in all 4-quadrant operations of the motor. The GUI developed allows the user to set the speed, and display all waveforms. Speed to the equivalent Iq reference value is obtained through a look-up table and the motor operates in direct torque control (DTC) mode up to the base speed of the motor. The Id reference control using the lookup table provides speed control up to the peak speed of the motor with reduced torque on on-load conditions. The DUT motor tested is an 8-pole PMSM motor with peak power of 60kW and peak speed of 4000rpm. The FOC control system in LabVIEW offers robust control of the motor by operating the motor in all 4 quadrant operations, the motor achieves the set speed from standstill in 3 seconds on the no-load condition and achieves the set speed in 6 seconds on the on-load condition at 1000rpm, 10Nm.

LabVIEW, Field Oriented Control, Permanent Magnet Synchronous Motor, Device Under Test.

"Design and Implementation of FOC and GUI for EV Test Bench in LabVIEW", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 6, page no.j418-j430, June-2022, Available :http://www.jetir.org/papers/JETIR2206957.pdf

"Design and Implementation of FOC and GUI for EV Test Bench in LabVIEW", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 6, page no. ppj418-j430, June-2022, Available at : http://www.jetir.org/papers/JETIR2206957.pdf