1,720,973 research outputs found
Advanced topics on motor drives for emerging mechatronic applications
Get PDFElectrical drives, nowadays, are quickly spreading in various emerging mechatronic applications, such as robotics, precision motion control, servo-drives for medical applications, hybrid vehicles, industrial automation and many more. This implies stringent requirements in terms of reliability and system overall
performance.
Special care in design electrical machines and suitable attention in system modelling and implementing control strategy, can improve dynamic response, increase drives lifetime and achieving also costs reduction.
In the first part, this doctoral dissertation deals with modelling permanent magnet synchronous motors, starting from key-concepts arriving to the description of a fundamental measures set in order to characterize the model. To this aim, a test bench has been developed as useful tool for experimental validation after the design or simulation processes, as well as for a specific support for motor characterization during control design.
In this way, it is possible to prepare a detailed mathematical model, fundamental tool in studying of advanced control strategies.
The test bench is totally automated in executing measure, in order to guarantee measure repeatability.
In the second part, this thesis describes some electrical drive applications with permanent magnet synchronous motors (some applications are suitable also for other type of motors) which have been studied, developed and experimented during the three-year doctoral research.
Some main field interested are: control of interior permanent magnet motors, automotive, power line communication applied to electrical drives, as well as civil applications of drives controlled with microprocessors
High efficiency multi-drive system for a hybrid electric catamaran with submersed PM synchronous motors
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Design of a flux weakening control scheme for DC motor drives featuring full voltage operation
No full textThis paper deals with an effective drive control scheme for separately excited DC motors. Distinctive feature of the work is the modelling of the motor as a two-input single-output non linear system that allows the armature voltage to be maintained to the maximum full output voltage of the converter during flux weakening operation while the armature current is controlled by the excitation one. Experimental results confirm the expected drive performances that get advantages in sizing the power electronics
Performance Evaluation of an Integrated Starter Alternator using an Interior PM Machine
No full textAbstract: There is a worldwide effort in using more and more electrical-driven auxiliaries in road vehicles. The integrated starter-alternator (ISA) is an electric drive in which the functions of starting engine and generating
electric power are fulfilled by only one electric machine, instead of two separate electric machines in a traditional automotive vehicle. The interior permanent magnet (IPM) synchronous machines are attractive for
the ISA application thanks to their characteristics: the flux-weakening capability, the high efficiency, the high power density and the high overload capability. This study reports some analysis and test results of an ISA that has been developed using a fractional-slot IPM machine. The results confirm that the IPM machine configuration is an excellent candidate for this application
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