Michael O. Omoigui

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An overview of hybrid electric vehicle technology is presented. This encapsulates factors that necessitate the development of hybrid electric vehicles, classifications of hybrid electric vehicles based on the arrangement of the internal combustion engine and the electric motor for traction. The types of batteries required and the use of power electronic(More)
A three-phase synchronous reluctance machine having an axially laminated rotor structure and an auxiliary DC source fed single-phase control winding has utility as either as a high-speed generator or a high-torque, low-speed motor. This paper provides an understanding of its operation using electric circuit and electromagnetic field concepts in the process(More)
The analysis of an open phase fault for a five phase induction motor is presented. A circuit based model is developed which can help to predict not only the steady-state performance but also the dynamics including the pulsating torque and to evaluate the small-signal stability of the faulted machine. This is made possible by the utility of the harmonic(More)
This paper presents a new approach to the modeling and analysis of flying capacitor DC-DC converters using the switching function approach. This method helps to obtain the model dynamic equations which can be used in computer simulations to observe the response of the converter, voltages across the switching devices and the flying capacitors. The harmonic(More)
The first part of this paper presents the basic analyses carried out on Nigerian 330 kV electrical network with distributed generation (DG) penetration. The analyses include load flow, short circuit, transient stability, modal/eigenvalues calculation and harmonics. The proposed network is an expanded network of the present network incorporating wind, solar(More)
The paper reports the results of analysis of a multi-terminal UPFC used for power transfer and stability improvement of power systems. The analysis employed abc to qd0 transformation technique to obtain a time-invariant equation describing the system. A simulation of a-two transmission network rated at 20 and 15 MVA at 33 kV was investigated. Results(More)
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