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A novel four quadrant operation control strategy of permanent magnet synchronous motor (PMSM) drive systems is proposed. In order to regulate precisely output direct current (DC) bus voltage and achieve the control of unity power factor, the exponential functional-based sliding mode reaching law (ESMRL), which adapts to the variations of the grid-side inverter and sliding mode surfaces, is developed...
This paper is aimed at identifying the design parameters of a PM Assisted Synchronous Reluctance Motor (PMASyRM), by using cheaper magnets (for example hard ferrites) than those used for the equivalent stator of a Permanent Magnet Synchronous Motor (PMSM) taken as a reference. The rotor saliency is expected to be as high as possible so that its performance is comparable with the reference, while having...
PMSM machines with concentrated windings have become more and more popular over the last years. The biggest drawbacks of these machines are high cogging torque and the form of the back EMF. Standard approaches try to shape the back EMF sinusoidal to use standard field orientated control. In the following paper an approach is shown to shape the EMF by using derivative free minimization. Using this...
Apart from fulfilling component electrical specifications, electronics needs to fit into the target application, composed of electronics components as well as mechanical parts. In complex applications such investigations can be made by simulations in which relevant application performances are checked under any allowed variation of operating conditions, design parameters and noise factors. In this...
The growth of wind electric energy production during the last years shows a promising market for this renewable energy resource. Some aspects of it are well consolidated and there is little room to change the industry. However, further improvement is seen as the semiconductors technology and magnetic materials advance. In this context, this work presents a high efficiency wind energy conversion system...
In this paper, an optimization is reported for the determination of time response (Tr) and power (P) of Electric Vehicle. The electric constant of back-electromotive-force, stator d- and q- axes inductances, switching period, battery voltage, stator resistance and torque gear ratio were selected as factors being able to influence the Tr and P. The optimization process was carried out with Doehlert...
Due to high torque-to-loss ratio, permanent magnet synchronous machines (PMSM) have received increasing attention in automotive applications. In addition to high efficiency, quiet operation of the propulsion drives are desirable in automotive, naval and military applications. To effectively mitigate the effects of acoustics noise and vibration in PMSM, a numerically efficient method for optimization...
This paper deals with a design method of an external permanent magnet (PM) synchronous motor (PMSM) using concentrated winding (wound around one tooth). The machine is used for the electrical motorization of a small urban hybrid vehicle. Such an application leads to strong design constraints, such as weight limitation, high starting torque, compactness etc. To achieve the design of the machine, an...
Permanent magnet synchronous motor (PMSM) drives are increasingly considered in vehicular applications due to relatively high power density, negligible rotor losses, high efficiency, ease of control, and maintenance. In this paper a new method of fault detection and treatment for 5-phase PMSM under static rotor eccentricity has been introduced. As the optimum performance is of great importance in...
This research work presents a new and efficient design methodology for the specification, development and manufacture of permanent magnet sychronous motors (PMSMs). In this paper a genetic algorithm based design optimisation technique for PMSMs is presented in which the multi-criteria considered in the optimisation are the electromagnetic performance, the thermal performance and the material cost...
In view of the operation characters of permanent magnet synchronous motor (PMSM) for hybrid electric vehicle (HEV) application, efficiency optimization control strategy is needed to meet the demand of rapidity. An efficiency optimized vector control scheme is presented in this paper. The initial value of d-axis current can be achieved in any constant speed and torque operating point by loss model,...
In view of the operation characters of permanent magnet synchronous motor (PMSM) for hybrid electric vehicle (HEV) application, efficiency optimization control strategy is needed to meet the demand of rapidity. A quick efficiency optimized vector control scheme is presented in this paper. In steady state, the initial value of d-axis current can be achieved in any constant speed and torque operating...
This paper presents a comparative study of three popular, Evolutionary Algorithms (EA); Genetic Algorithms (GA), Particle Swarm Optimization (PSO) and Differential Evolution (DE) for optimal tuning of Proportional Integral (PI) speed controller in Permanent Magnet Synchronous Motor (PMSM) drives. A brief description of all the three algorithms and the definition of the problem are given.
This paper presents an immune PI control that consists of immune optimization algorithm and PI control. Traditional PI control canpsilat quickly match variation of motor variables or load disturbance in permanent magnet synchronous motor since control parameters are discrete and off-line adjusted. Therefore, by designing target function, antigen affinity, antibodies affinity and mutation, the immune...
In view of the operation characteristics of pump application, pump system should have high efficiency and energy saving during the whole operating process. A novel efficiency-optimization control strategy is presented to meet the demand of high efficiency of variable speed high efficiency PMSM. The core of this strategy is the excellent integration of mended maximum torque to current control algorithm,...
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