The Weighted Vector Control of Speed-Irrelevant Dual Induction Motors Fed by the Single Inverter

Robust control of two parallel‐connected permanent magnet synchronous motors fed by a single inverter

“…Compared with the two-motor drives supplied by four-leg inverter or five-leg inverter, single-inverter drive system has less controlled legs, lower cost, lighter weight, more compact structure [9], and it has been widely used in many fields like elevator doors and railway traction system (see [10][11][12]). Therefore, it has greatly stimulated the interest of many scholars.…”

“…Sensorless control has no robustness to the parameter perturbation, and in fact, the parameters of motor vary with the change of environment [20][21][22][23]. Besides, the stability of most of the existing controllers has not been proved in theory like [9,11,[15][16][17]. Moreover, most of controllers have been designed based on the steady-state model of motor rather than the dynamic model of motor, such as [9,11,13,14,16,17], which impacts the dynamic performance of system.…”

“…Besides, the stability of most of the existing controllers has not been proved in theory like [9,11,[15][16][17]. Moreover, most of controllers have been designed based on the steady-state model of motor rather than the dynamic model of motor, such as [9,11,13,14,16,17], which impacts the dynamic performance of system. In addition, although motor drive systems are faced with unavoidable and unmeasurable disturbances or some parameter variations [24,25], the external disturbances and/or the uncertainty of model have not been considered in many studies like [9,11,[13][14][15][16][17].…”

Vector control of a three-phase parallel connected two motor single inverter speed sensorless drive

“…Simulation results were provided for change in wheel diameter between front and rear wheels. To improve the control performance of dual speed-irrelevant motors for unbalanced load, weighted flux linkage vector control was used in [9]. The speed of the induction motors was controlled by PI-controller for one motor and P-controller for another motor.…”

Single Inverter Fed Speed Sensorless Vector Control of Parallel Connected Two Motor Drive

“…In addition, to control the speed of parallel connected induction motor drive and to make the drive stable for unbalanced load conditions, nonlinear programming method [11]-[12], rotor flux oriented control scheme with parameter averaging and space vector averaging [13], motors with different ratings [14]- [15], adjustable PI controllers [16], rotor flux feedback control [17], matrix converter with slip frequency vector control [18], one degree of freedom control (1DOF) and two degree of freedom control (2DOF) [19], weighted voltage vector [20], new hybrid control method (speed and torque controller) [21], speedirrelevant motors using weighted flux linkage vector control [22], smart switching technique [23], mean and master slave field oriented control [24] and PI speed and current controllers [25] were employed.…”