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International Journal of Electrical and Computer Engineering Systems, Vol. 14 No. 5, 2023.

Case report, case study

https://doi.org/10.32985/ijeces.14.5.10

Performance of Synchronous Reluctance Generators with Series and Shunt Stator Connections

Emeka Simon Obe orcid id orcid.org/0000-0001-9530-2009 ; Botswana International University of Science and Technology Department of Electrical, Electronic and Telecommunications Engineering, Plot 10071 Boseja, Palapye, Botswana
Lilian Livutse Amuhaya orcid id orcid.org/0000-0003-1898-8574 ; Botswana International University of Science and Technology, Department of Electrical, Electronic and Telecommunications Engineering, Plot 10071 Boseja, Palapye, Botswana
Pauline Ijeoma Obe ; University of Nigeria Nsukka Department of Industrial Technical Education, Faculty of Vocational Technical Education Nsukka 410001, Nigeria
Adamu Murtala Zungeru orcid id orcid.org/0000-0003-2412-6559 ; Botswana International University of Science and Technology, Department of Electrical, Electronic and Telecommunications Engineering, Plot 10071 Boseja, Palapye, Botswana

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Abstract

This paper reports the performance of series- and shunt-connected self-excited reluctance generators (SERG). In addition to the two stator connections, an analysis was carried out on rotor configurations (with and without a cage) a combination resulting in four different generator topologies. The loss of load and transient characteristics of each generator configuration were studied for a combination of pure resistive and R-L loads. It is shown that for the same machine size, speed and exciting capacitor value, the generator with a cage preserves a better wave shape following a transient disturbance than the cageless machine. At unity power factor, shunt generator with cage can deliver 0.691pu output power, at 1.97% regulation; its series counterpart only delivers 0.589 pu at 2.05%. The study demonstrates that while shunt generators have better regulation and supports higher loads at different power factors, series generators show a superior performance in terms of damping out transients.

Keywords

synchronous reluctance generator; transient performance; voltage regulation; loss of load performance; series connection; shunt connection; exciting capacitor;

Hrčak ID:

303575

URI

https://hrcak.srce.hr/303575

Publication date:

5.6.2023.

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