In this paper, A power factor correction (PFC) based single ended primary inductor converter (SEPIC) is used to regulate DC bus voltage of voltage source inverter (VSI) to run PMBLDC motor . Permanent magnet brushless DC motor (PMBLDCM) is used in air-conditioning systems and runs at rated torque and variable speed to achieve energy conservation. The analysis, design and performance of the prop...

Optimal control of a wheel loader operating in the short loading cycle is studied in order to investigate the potentials for fuel consumption reduction while maintaining acceptable production rates. The wheel loader is modeled as a system with five states and three control inputs including torque converter nonlinearities. The torque converter is modeled with no lockup enabling power transmissio...

In this paper a systematic fuzzy sliding mode controller is presented for permanent magnet synchronous motor (PMSM) sensorless drives. The fuzzy sliding mode controller is designed based on input–output feedback linearization control technique. The extended Kalman filter is used to estimate the speed, position and load torque. The PMSM is fed from indirect power electronics converter. This indi...

abstract: a continuously variable transmission (cvt) is a transmission which may change step less by way of an infinite variety of effective gear ratios between maximum and minimum values. this contrasts with different mechanical transmissions that solely permit just a few different distinct gear ratios to be selected. continuously variable transmissions (cvts) are mechanical devices that allow...

Flow separation is ubiquitous in turbomachinery. Compared with the more mature turbomachinery flow control method where medium gas, liquid cannot be controlled well. In this study, according to principle of aircraft fowler flap, taking stator blade hydraulic torque converter as basic research object, shape fitted Joukowsky transformation, and then it slotted. Computational fluid dynamics used p...

Simple power electronic drive circuit and fault tolerance of converter are specific advantages of SRM drives, but excessive torque ripple has limited their use to special applications. It is well known that controlling the current shape adequately can minimize the torque ripple. This paper presents a new method for shaping the motor currents to minimize the torque ripple, using a neuro-fuzzy co...

This paper presents a 12 V mechanical torque converting belt-driven integrated starter and generator (BSG) system without DC-DC converter. A micro hybrid electric vehicle (micro HEV) typically uses battery with 12/48 bidirectional converter to satisfy its high starting wide operating speed for generating the required power. In contrast, proposed BSG consists of wound field synchronous machine (...

This chapter’s main goal is to show how MatLab can be very useful when applied in the model-based design of dynamic systems, especially in the domain of power electronics systems. Two cases will be described that are encountered in energy conversion: i) a slip energy recovery (SER) system and ii) a power electronic converter for a fuel cell (FC) based energy generation system. In both cases, th...

It is needless to say that four quadrant principle plays a vital role in industrial applications .Running a machine both in motoring and generating action illustrates the four quadrant operation. In electric locomotives, the motor may run clock wise and anti clockwise, and the torque may act either with or against the direction of rotation. In other words the speed and torque may be positive or...

To improve ground vehicle efficiency, shift schedule energy saving was proposed for the ground vehicle automatic transmission by studying the function of the torque converter and transmission in the vehicular drivetrain. The shift schedule can keep the torque converter working in the high efficiency range under all the working conditions except in the low efficiency range on the left when the t...