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In this paper, a new full-bridge modular inverter topology for open-end split winding induction motor drive is presented. All bus capacitor related to a specific phase is connected in series to reach the desired voltage level required in high power and high input-voltage applications requirements. The number of inverters per phase is related to the number of pole-pairs in the machine. Single input...
High performance interior permanent magnet synchronous machines show nonlinear magnetics due to saturation and cross-coupling. Nonlinear differential equations describe these phenomena and make feedback control challenging. This paper presents a predictive control method to precisely control the dynamics of these machines. Four real-time capable strategies to online identify transient trajectories...
Focus is on three operation strategies for a grid-connected three-level neutral-poi n t-clamped quasi impedance source inverter in a single-ph as e application. Each control scheme wa s implemented in the PS CAD/EMTDC simulation tool a n d underwent different tests, which involved some steps in the reference values and in the perturbations applied to the system. A comparison according to their responses...
This paper presents the design of a novel miniaturized dual-band band pass filter based on the composite right/left-handed (CRLH) metamaterial structure. In detail, sub wavelength resonators are realized through the zeroth order resonance (ZOR), and inverter structures are proposed to control the coupling between neighboring ZOR resonators. The Technique is validated by EM Predictions using IE3D.
A novel topology scheme for wireless power transfer (WPT) applications whose transmitter consists of dual opposite phase class E inverters was proposed. Series-series compensation topology was applied for magnetic coupling structure. Constant output voltage at secondary side can be easily realized by inserting a π transconductance at the output of inverter to ensure the primary currents to be constant...
In this paper two operating modes available for permanent magnet synchronous machines (PMSM) are presented. This study aims to increase the efficiency of the motor-pump system. The PMSM is driven at variable speed and the inverter is controlled by space vector modulation theory. This study allows changing the component that produces magnetic flux (id), while the torque current component of PMSM (i...
This paper presents a resonant inductive coupling wireless power transfer (RIC-WPT) system with a class-DE and class-E rectifier along with its analytical design procedure. By using the class-DE inverter as a transmitter and the class-E rectifier as a receiver, the designed WPT system can achieve a high power-conversion efficiency because of the class-E ZVS/ZDS conditions satisfied in both the inverter...
This work compares multi-cell topologies based on Current Source Inverters (CSIs) which are connected in a Cascade H-Bridge (CHB), where the large DC inductor size needed to compensate the oscillating power drained by the inverter is the main drawback. In order to reduce the DC inductor size, two compensation methods which compensated the oscillating power are evaluated and compared with the basic...
A general-purpose control algorithm is proposed for permanent magnet (PM) synchronous machine drives based on the principles of Direct Flux Vector Control. The algorithm does not require regulators tuning, and it is tailored to different machines automatically via identification of the stator resistance and flux linkage tables. The model parameters are identified via a preliminary self-commissioning...
The finite reluctance approach is very well suited for fast modeling and dynamic simulation of permanent magnet synchronous machines with inverter feeding. This paper shows validating simulations, in both steady-state and transient conditions, carried out for a permanent magnet linear motor designed for on board ship load actuation. The basics of the method are resumed. The simulations obtained by...
Capacitively coupled power transfer (CCPT) has been proposed as an alternative contactless/wireless power transfer solution. Unlike inductively coupled power transfer (ICPT), CCPT transfers power via electric field coupling, which is usually modeled as coupling capacitance. As the coupling capacitance of a CCPT system is normally very small due to practical constraints, its impedance needs to be compensated...
This paper examines the issue of staying within the voltage capacity of a fixed bus voltage inverter during increasing magnetization state (MS) of variable flux permanent magnet synchronous machines (VF-PMSMs). MS manipulation using a fast stator id pulse is shown to induce a large voltage even at low speeds. In order to utilize the power conversion capability and improved efficiency regions of VF...
In this work, a 3kW inductive power transfer system is investigated, specifically intended for contactless vehicle charging. A series-series compensated topology with dual-side power control and a corresponding control strategy is proposed to significantly increase the overall efficiency, especially for systems with a large coupling factor variation and in partial load mode. A hardware prototype is...
Dynamic circuits using n-channel multiple-input floating-gate MOS(FGMOS) transistors to realize binary and ternary logic are presented. In binary domino circuits, the n-channel FGMOS transistors are used to replace the nMOS logic block to simplify the circuit structure. By using the advantage that voltage signals are easy to be added by means of floating gate in multiple-input FGMOS transistor, a...
This paper presents the experimental evaluation of a flux linkage-based inverter loss model embedded in a deadbeat-direct torque and flux control (DB-DTFC) that achieves desired torque and minimizes losses over each switching period. The optimal flux commands are selected from those that will achieve the desired torque by using embedded dynamic flux linkage-based loss models of the machine and inverter...
This paper derives analytical models for designing inductive chargers for electric vehicles intended to be charged with only primary side charger control. Designs with series or parallel resonant capacitors on the output of the secondary winding are compared. A design optimization methodology is given for component selection and maximizing converter efficiency for a range of parameters. Analysis of...
In this paper a 10 kVA photovoltaic emulator is presented. The system implemented generates photovoltaic V-I characteristic curves to analyse and test maximum power point tracking algorithms of real photovoltaic inverters according to the standard EN50530. The power converter used includes a three-phase ac-dc active rectifier. The power stage selected allows to minimize the harmonic current content...
Resonant coupling wireless power transmission technology fulfills power transmission through the two coils, which have the same resonant frequency to generate high-frequency alternating magnetic field. Compared with the traditional wire transmission, this technique is more flexible, efficient and permeable. In this paper, the system simulation and analysis are carried out on PSpice simulation platform,...
This paper presents a resonant inductive coupling wireless power transfer (RIC-WPT) system with a class-E2 dc-dc converter along with its analytical design procedure. By using the class-E inverter as a transmitter and the class-E rectifier as a receiver, the designed WPT system can achieve a high power-conversion efficiency because of the class-E ZVS/ZDS conditions satisfied in both the inverter and...
This paper presents a capacitive-coupling voltage source inverter (VSI) for single-phase grid connected photovoltaic (PV) system, which can achieve active power transfer and reactive power compensation simultaneously. The operation principle of the capacitive-coupling VSI was analyzed and compared with the conventional inductive-coupling VSI. Theoretical study indicates that capacitive-coupling grid-connected...
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