Multidirectional power flow control among double winding six-phase induction machine winding sets

Abstract

Abstract-This paper presents an indirect rotor-field oriented control (IRFOC) algorithm for symmetrical six-phase doublewinding induction machines with four three-phase sub-winding sets. The presented algorithm introduces the ability to control the power flow between different sub-winding sets. Multiple threephase induction machines are utilised for critical applications such as more-electric aircrafts, due to their high reliability and fault tolerant capabilities. In this paper, the proposed control scheme is utilising the auxiliary currents of each six-phase sub-motor to achieve full control of the sub-winding sets current amplitudes and consequently the power flow direction for each sub-winding set. A six-phase induction machine with double winding is utilised to validate the proposed control scheme. Four isolated voltage source inverters (VSIs) are used to supply each winding set of the machine. The double-winding six-phase induction machine controlled by the proposed IRFOC algorithm is simulated using Matlab/Simulink. Presented simulation results validate the ability of the algorithm to appropriately control the power flow of each sub-winding set.

A Novel Dual Three-Phase Multilevel Space Vector Modulation for Six-Phase Multilevel Inverters to Drive Induction Machine

“…The SPIM with two similar stator three phase windings, shifted by 0, 30, 60 degrees in space and three phase winding in rotor is shown in Figure 3. To put it simply, we will consider that the electrical circuit of the rotor is equivalent to a three-phase winding shortcircuit [27,28]. Figure 3 gives the position of the magnetic axes of the nine windings forming the six phases of the stator and the three phases of the rotor.…”

“…In this section, the association of two three-phase machines. By applying the Park transformation of the two-stator stars, we obtain twice the two-phase models equivalent to the threephase model (Figure 4) [28,29]. In which we use for this the usual transformation of Concordia and Park.…”

SMART: Modular Architecture for Reliable Transportation

“…The machine windings are typically split into numerous sets of 3-phase systems physically displaced by a fixed angle. Typically these machines have a higher complexity in modelling and control as the interaction and cross coupling between phases must be considered, leading to a complicated inductance matrix [2][3][4][5][6][7].…”

“…Recent technological advancement in power flow control has shown that the load sharing can be controlled between the numbers of systems [2,[4][5]. Control can be either centralised or even decentralised [3] for higher reliability.…”

“…Control can be either centralised or even decentralised [3] for higher reliability. Solutions typically use vector space decomposition for control in the synchronous reference frame [2][3]5]. Efforts have already been made to integrate multi-three-phase machines for directdrive and integrated in-wheel applications [8][9] where it has been shown that high torque density can be achieved [10][11].…”