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Self-Excited Induction Generation(SEIG) is very rugged, simple, lightweight, and it is easy and inexpensive to implement, very simple to control, and requires a very little maintenance. In this variable-speed operation, the SEIG needs a power electronics interface to convert from the variable frequency output voltage of the generator to a DC output voltage for battery or other DC applications. In...
Numerous Li-Ion cell manufacturers currently have currently produced all different kinds of 18650 cylindrical Li-Ion cells with a purpose of operating source of electric-powered application such as electric vehicle (EV), hybrid electric vehicle (HEV), and small-scale energy storage system (ESS). In general, for achieving the efficient and stable operation of above applications, each cell qualification...
This paper is with regard to a topology of an interleaved bidirectional buck-boost power converter for railway applications. The objectives of this proposed power converter topology are to suppress the harmonics at the both sides of the input terminal and output terminal using this topology. Since the both sides of voltages have wide operating ranges such as the battery voltage ranging 500V∼700V,...
This paper introduces an innovative approach for replacing the active and passive equalization circuits used for balancing the voltage and state-of-charge imbalances among Lithium-Ion cells. In this research, design and implementation of multi-variate discrete wavelet technique (MDWT) for de-noising experimental discharging charging signals are considered. WMULDEN function in MATLAB is used for MDWT...
A Self-Excited Induction Generation (SEIG) for a variable speed wind turbine generation(VS-WG) is normally considered to be a good candidate for implementation in stand-alone applications such as battery charging, hydrogenation, water pumping, water purification, water desalination, and etc. In this study, we have examined a study on active power and flux control strategies for a SEIG for a variable...
This paper describes a small signal model, voltage controller design and its implementation for a DC/DC converter in a PV(Photovoltaic) system. The detailed small signal model is proposed to design a voltage controller for the system. Based on the proposed small signal model, a voltage controller for the PV system is designed and tested with different internal resistances of the PV system. The designed...
This paper presents a Multi-Phase Sliding Mode(MPSM) Control Strategy for solving chattering issues inherently existing in DC-DC converters. The main idea of the proposed methodology is to implement a MPSM Control for geometrically nullifying the amplitude of ripple currents yielded by the switching patterns. The benefits of the proposed Multi-Phase Sliding Mode Control strategy involve low-switching...
This approach gives insight to the design and implementation of the noise suppression based on the wavelet transform (WT) for efficient FCTV signal provision. The most important thing in this approach is to show the comparative analyses on noise suppression between two transforms, such as the discrete wavelet transform (DWT) and discrete wavelet packet transform (DWPT). With an identical mother wavelet...
In this paper, an improved the maximum power point tracking (MPPT) in a Photovoltaic (PV) System is designed by using a Fuzzy Logic Controller (FLC). The objectives of designing the FLC for MPPT in the PV systems are to accelerate the MPPT rate, and to set a smaller oscillating zone around the maximum power point (MPP). The proposed FLC based MPPT adopts a set of variable step sizes with regard to...
The state-of-charge (SOC) estimation and state-of-health (SOH) prediction of the series/parallel-cell configured battery pack are determined by measuring an elaborate experimental discharging/charging terminal voltage (EDCTV) signal. Unfortunately, an unavoidable sensing of noisy in the EDCTV signal clearly results in non-correct SOC/SOH performances. Therefore, it is surely required to investigate...
This approach newly presents an innovative method that implements the noise suppression considering the discrete wavelet transform (DWT)-based multi-resolution analysis (MRA). Specifically, this approach elaborately carries out two comparative analyses of the noise suppression depending on information on mother wavelet and decomposition level in the MRA. The first is to select the decomposition level...
In this paper, a multi-phase sliding mode controller is presented for an electric vehicle system having a fuel cell power source and energy storage systems such as battery and ultracapacitor. Details of the multi-dimensional sliding mode control for this multi-input power converter are designed with a dynamic Proton Exchange Membrane Fuel Cell(PEMFC), Li-Ion battery and Ultracapacitor models. The...
The increase in data center operating costs is driving innovation to improve their energy efficiency. Previous research has investigated computational and physical control intervention strategies to alleviate the competition between energy consumption and thermal performance in data center operation. This study contributes to the body of knowledge by proposing a cyber-physical systems (CPS) approach...
In this paper, a simple MATLAB-SIMULINK based Digital Signal Processor(DSP) implementation for a Sliding Mode Control(SMC) is presented for power converters in electric vehicles and renewable energy applications. This proposed control and program can be used a Power Factor Corrected(PFC) converter and a bi-directional converter in those applications. Design procedures of SMC for a Power Factor Corrected...
In this paper, a modeling and supervisory control strategy for a solar/fuel cell powered hybrid power system are developed for stand-alone residential applications. Using Ultra-Capacitors(UC) and PhotoVoltaic (PV) panel together with a Fuel Cell(FC) system is a possible solution to provide sufficient power supplies for residential areas. Each model for the FC, PV and UC are developed, and four modes...
In this paper, a control design of Digital Signal Processor based a power factor corrected(PFC) converter and a bidirectional converter for Plug-In Hybrid Electric Vehicles (PHEVs) is discussed. In order to design current and voltage controllers of the PFC converter and the bi-directional converter for PHEVs, small signal models are used. Design procedures of current controllers for the PFC controller...
In this paper, a sliding mode control based multi-functional power converter is presented for electric vehicles and renewable energy applications. The proposed power converter is a multi-functional converter, which has capabilities of buck-boost, bidirectional functions and even fault tolerance. Each mode of operation of the proposed system were analyzed and to validate the system, a prototype test-bed...
In this paper, a sliding mode control of the power factor corrected(PFC) converter for Plug-In Hybrid Electric Vehicles (PHEVs) is presented. In order to design a voltage controller of the PFC converter for PHEVs, a small signal model can be used because of its slow nature of the voltage controller compared to the current controller in the system. In terms of the current controller for the PFC converter...
Since a fuel cell power system provides a low voltage output, in the most fuel cell vehicle and its stationary power applications, a step up boost DC/DC converter is required. In this paper, it is presented a design principle of sliding mode control for the current fed full bridge boost DC/DC converter with two different power sources, PEMFC(Proton Exchange Membrane Fuel Cell), and Ultra-Capacitor(UC)systems...
This study presents a control algorithm of the brushless excitation system for a synchronous machine during the failure of rotating diodes, specifically open circuit failure. Through the harmonic analysis of the exciter field current, the open circuit or short circuit diode fault can be detected. Also the FFT(fast fourier transformation) results of the exciter field current and the change ratio of...
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