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RESEARCH PROGRAM

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Research Units
Similar research programs:
Scientific and education field classification
International Patent Classification
  • PERFORMING OPERATIONS; TRANSPORTING
    • VEHICLES IN GENERAL
      • ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL (electric coupling devices combined with mechanical couplings of vehicles B60D1/62; electric heating for vehicles B60H; transmitting drive from electric motors to ultimate propulsive elements in vehicles B60K; disposition of electric propulsion equipment, other than current collectors, in vehicles B60K; auxiliary generator drives on vehicles B60K; lighting for vehicles B60Q; vehicle brake control systems in general B60T; preventing wheel slip by reducing power in rail vehicles B61C; railway track circuits in general B61L; lighting in general F21; H05B; switches in general H01H; coupling devices for electric connections in general H01R; dynamo-electric machines H02K; electric converters H02M; starting, controlling, braking of electric machines or converters in general H02P; electric heating in general H05B) [C9507]
  • PHYSICS
Geographical classification
Keywords
ELECTROMAGNETIC AND THERMAL MODELING OF ELECTRICAL MACHINES AND STATIC CONVERTERS; COOLING; THERMAL EQUIVALENT NETWORKS; HEAT DISSIPATION IN AEROSPACE APPLICATIONS; MACHINES WITH CONCENTRATED WINDINGS; POWER ELECTRONICS MODULAR CONVERTERS; CONTROL WITH THERMAL IMAGE MODELS; FINITE ELEMENT ANALYSIS; SOFT MAGNETIC COMPOSITES

Thermal Aspects in Design and Control of Innovative Electrical Drives

Politecnico di Milano
Abstract
The research is aimed to analyze the thermal and the electromagnetic design aspects of the electrical machines and drives of various sectors, with the following purposes: improvement of the thermal modeling of components, development of design tools, forecast of the material thermal stresses, optimization of cooling, operation, and systems control.
Directly exploitable results will come in the following sectors: industrial processes; civil and commercial sectors; aerospace applications; propulsion systems.
Various types and ratings will be considered, in the manufacturing, consumer, transportation and services areas. Considering the increasing competition needs, and the concomitant increasing materials exploitation, the availability of suitable tools of knowledge and control of the thermal aspects is strategic: in fact, the project will be adequately sustained, also economically, from the industrial world.
This organic university-industry interaction will allow to join the theoretical approach with the experimental and manufacture aspects, with a strong orientation towards products and shared objectives. This fact will answer to the Italian industry problems, challenged to the product quality progress, at once containing the costs, in a global market where innovation is an absolute need.
The research program will be aimed to the development of thermal analysis methodologies for design and control purposes of motors, converters and drives, with >>>

Principal Investigator
Antonino DI GERLANDO Politecnico di MILANO
Research Objectives
Foreword
The sensibility to the thermal problems of electric machines, static converters and electric drives has progressively grown recently, for the following, main reasons:
- the tendency to improve components and systems performances (compactness and low cost, motor torque/mass or torque/inertia ratios, efficiency, response promptness) has made important the thermal behaviour knowledge and the adoption of measures suited to limit the operating temperatures [1];
-the evolution in the material technologies and in the design methodologies stimulates to adopt a suitable approach also on the thermal aspects of the design, for an effective pursuit of optimal results [2];
-the development of electromechanical devices and of conversion apparatus with non conventional structural configurations and/or employment conditions asks to carefully examine the thermal exchange and storage situations, with the development of test validation activities and of suitable models [3];
-the increasing availability of Finite Element (FEM) codes for thermal and/or fluid-dynamics analyses certainly represents a key design tool, but it does not eliminate the need to develop suitable models based on a more synthetic circuit approach, more suited to quick parametric analyses [4];
-the development of accurate equivalent thermal networks of the devices necessarily requires to be accompanied by experimental tests on adequately instrumented prototypes, in >>>

Timescale
24 months
National and international background
The use of electromechanical components and of power electronics systems is progressively spreading and specializing in various areas, both of the civil society and in the military sector ("more electric drive" solutions). Consequently, there are several examples related to the fields of the industrial processes, of the automation systems, of the applications in civil sectors (both "consumer" and commercial), of the transportation systems (not only terrestrial - electrical vehicles -, but also naval - "all electric ship" solutions – space and aeronautical - "more electric aircraft" -).
The increasing demand of performances optimization are more and more linked to the pursuit of other important objectives, among which: "custom" component realization (with dimensional and service constraints specifically oriented to the application); containment of the manufacturing costs (through the deeper exploitation of the active materials and the adoption of configurations more suitable for the automated production); operation reliability and robustness (also under severe environmental conditions and in greatly variable operating cycles).
The development of effectively competitive products asks for an integrated approach, that combines the followings aspects:
-in case of development of devices with innovative configurations, the adoption of tools and methodologies well suited for the component design and verification is essential, characterized by adaptability to >>>