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This paper presents a biased flux hybrid-excited flux switching (BFHEFS) machine to improve the flux adjustability. The proposed configuration adopts E-core to enhance the permanent magnet (PM) material utilization ratio, which use half PMs of the conventional flux switching PM (FSPM) machine. The flux-adjusted principle of the E-core BFHEFS machine is introduced to explain the better flux adjustability...
In multi-phase machines, the third harmonic current can interact with the third harmonic back-EMF to improve the output torque. This paper investigates the unequal tooth width and permanent magnet (PM) segmentation techniques to improve the third harmonic back-EMF of the five phase 10-slot/8-pole surface-mounted permanent magnet (SPM) machine. It is found that the fundamental and third harmonic winding...
In the traditional switched reluctance machine drive(SRD), the energy exchange between power supply and electric machine could induce current ripple. Bus Peak Current Control Strategy is a new approach to reduce the DC-Link current ripple by minimizing peak current and filtering commutation-induced harmonic wave. A single current sensor is employed to realize the strategy which cut down cost and improve...
This paper focuses on micro controller unit (MCU) based platform and field oriented control (FOC) algorithm applying 3rd harmonic injection algorithm. The target application of this paper is power chain systems of electric vehicle (EV) and electric scooter (E-Scooter). The MCU based system on chip (SoC) is proposed, called Bison1, and the proposed platform is called Bison1 platform which is including...
In order to verify the feasibility of NDVI time series data applied in land use classification at cloudy and rainy regions. In this paper, Malaysia was taken as an example, an appropriate land use classification of it was established, and Harmonic Analysis of Time Series (HANTS) algorithm was chosen to reconstruct the NDVI time series for Malaysia land classification. The results indicated that the...
This paper presents a stochastic Newton method to compute the switching angles in multilevel converters so as to produce the required fundamental voltage while at the same time not generate higher order harmonics. For Newton method, a good initial guess which should be very close to exact solution patterns is necessary, so using stochastic techniques gives a new way to find possible initial values,...
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