A new dc–dc converter structure with high voltage gain is proposed in this paper. The consists of two switches that are turned on and off simultaneously. In addition, the switched-capacitor cells one energy storage cell utilized converter. These result gains at low values duty cycle. Besides, stress across power devices below half output voltage. Therefore, MOSFET <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math...

In this article, a high step-up nonisolated dc-dc converter is proposed to provide voltage gain with low stress on semiconductors. The main feature of the structure its flexibility in providing constant output voltages reasonable range stress. This achieved by different combinations duty cycles. Also, improves efficiency converter. consists three switches, two inductors, capacitors, and four diodes. descriptions continuous conduction mode, discontinuous boundary condition nonideal model,...

A lumped-parameter thermal model is presented for axial flux permanent magnet (AFPM) machines. The provides the steady-state solution to derive temperatures at different parts of machine, including in stator windings and temperature magnets. Temperature-dependent properties materials used machine construction as well winding resistance consequently copper losses require update accurate design machine. Therefore, an iterative coupled electromagnetic program proposed this study. 5-kW AFPM...

This article aims to propose a new nonisolated step-up multiport dc-dc converter. The proposed topology is dual-input dual-output converter with different output voltages levels. makes it possible be used in hybrid energy systems input sources as well electric vehicles supply the traction motor and auxiliary loads. capable of providing high voltage gains small values duty cycles low normalized peak stress across semiconductor devices. Therefore, switches turn-on resistance diodes reduced...

Optimal design for an axial-flux permanent magnet synchronous generator (AFPMSG) using genetic algorithm (GA) is presented, and the condition minimum active material cost deduced. A computer-aided procedure based on results of GA proposed. In practical performance characteristics are taken into account as some restrictions object function used in optimization algorithm. 30-kW AFPMSG with two parallel connected stators rotor-surface PMs designed developed program, then 3-D finite-element...

This study suggests a novel ultra-step-up dc–dc converter with low normalised voltage stress across the power devices. The proposed incorporates conventional boost self-lift circuit and charge pump concept utilises multiplier cell at output side. In input side, two inductors are magnetised during switch on-time. During off-time, stored energy in these inductors, capacitor source, is delivered to load. Accordingly, capable of providing high gains small duty cycle. Besides, devices low....

To compete with other types of electrical machines as well manufacturers, the performance characteristics axial-flux permanent-magnet (AFPM) should be improved. Reduction higher harmonic components from induced back electromotive force is preferred during design process an machine. achieve almost sinusoidal phase voltage, a air-gap flux density distribution produced. Furthermore, in order to easy startup and also less noisy machines, cogging torque machine reduced. In this paper,...

ABSTRACT This paper proposes a novel non‐isolated single‐input dual‐output (SIDO) DC‐DC converter with high controllability for application in on‐grid photovoltaic (PV) systems. The proposed topology utilises combination of quadratic boost structure and voltage multiplier cells to improve the gain converter. Also, it provides two output ports different levels, making suitable solar power plants, enabling simultaneous powering internal loads grid‐connected inverter through same Moreover,...

In this study, a new transformer-less multi-port dc–dc converter with bidirectional capability is proposed. The proposed has dual inputs and outputs in which one of the considered energy storage (ES) such as battery. Owing to capability, charging discharging ES are provided. mode, regenerative braking can charge These features make suitable for hybrid systems. Continuous current battery, low normalised peak voltage stress (NPVS) on semiconductors, step-up other advantages converter. Reduced...

In this study, a quadratic-based transformerless high step-down DC-DC buck converter is presented. There are two switching patterns applied to the switches. Through first pattern, proposed provides constant voltage conversion ratio for whole ranges of duty cycles. On other hand, by using an interleaved pattern input will be divided equally between primary capacitors, as result, low stress across semiconductor components. This feature allows designer select switches and diodes with lower...

Abstract The rampant growth in penetration of gas‐fired distributed units (GFDUs) is recasting the role integrated energy service provider (IESP) as a price‐maker player. Nevertheless, it threatening well‐being and reliability natural gas networks (NGNs). In this regard, paper investigates strategic participation 20‐node NGN an 33‐bus active distribution system (ADS) day‐ahead wholesale market (WM), which consists six‐bus transmission network (TN), through bi‐level optimization framework....

In the nonlinear dynamic equations of electric vehicle, parameters such as coefficient friction between tires and road, traction, resistance anchor, so on have ambiguities. Designing a controller that is robust to existence these parametric ambiguities also external disturbances, while still satisfying optimality criteria, challenging task. practical applications, in addition problems mentioned above, computing load control input should be taken into account sensible interaction performance...