An Improved Torque Density Pseudo Six-Phase Induction Machine Using a Quadruple Three-Phase Stator Winding
Abstract
The nine-phase six-terminal induction machine has recently been proposed as a promising contender to the conventional six-phase asymmetrical winding machine in terms of torque density, phase current quality, stator winding simplicity, and fault-tolerant capability. However, the relatively lower dc-link voltage utilization of a single neutral arrangement in multiphase machines with multiple three-phase windings represents, in general, a technical challenge when compared to windings with isolated star points. Therefore, this paper proposes a new pseudo six-phase winding layout suitable for medium-voltage high-power induction machines, which employs quadruple three-phase stator winding sets, while providing the same terminal behavior of a nine-phase six-terminal winding. Additionally, like the traditional six-phase winding, two possible neutral arrangements can be configured. The proposed winding configuration provides the same dc-link voltage utilization as in conventional dual three-phase winding machines with isolated neutrals. The effect of the circulating zero-sequence current component experienced with a single neutral arrangement can also be avoided. A 1.5 Hp prototype induction machine is used to experimentally validate the proposed six-phase winding layout under both healthy and fault conditions.
Collections
- Electrical Engineering [2424 items ]
Related items
Showing items related by title, author, creator and subject.
-
Two different carrier phase shifted space vector PWM techniques for pole phase modulation based 9-phase induction motor drive
Iqbal, Atif; Reddy, B. Prathap; Meraj, Mohammad; Maroti, P. K.; Hitimi, M. A. ( Institution of Engineering and Technology , 2020 , Conference Paper)The pole phase-modulated induction motor (PPMIM) drives fulfils all significant requirements of high power traction applications, like extended speed-torque capabilities, higher fault tolerance and high efficiency. In the ... -
A static three-phase to five-phase transformer based on Scott connection
Abdel-Khalik, A.S.; Shafik, Z.; Elserougi, A.; Ahmed, Shehab; Massoud, A. ( Elsevier B.V. , 2014 , Article)Multiphase machines have become challenging candidates for safety-critical applications that require wide fault tolerant capabilities and higher system reliability. However, this adds more complexity to the adopted power ... -
On the Achievable Rates of OFDM with Common Phase Error Compensation in Phase Noise Channels
Stefanatos, Stelios; Foukalas, Fotis; Khattab, Tamer ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)This paper considers the problem of analytically assessing the maximum achievable rates (capacity) of orthogonal frequency division multiplexing (OFDM) transmissions when the receiver, for complexity reasons, only accounts ...