TOPICS

 

RESEARCH AND DOCTORAL THESIS TOPICS

 

Contents

 

1.

FOREWORDS

2.

RESEARCH TOPICS LIST

3.

RESEARCH TOPICS DESCRIPTION AND REFERENCE PROFESSORS - (POLITECNICO DI TORINO)

4. ABSTRACTS OF RESEARCH TOPICS AND REFERENCE PROFESSORS (TECHNISCHE UNIVERSITÄT DARMSTADT)

 

 

 

 

 

1. FOREWORDS

   This document contains a list of research topics that could be undertaken by Chinese students in Europe with a short abstract for each of them. The topics are indicative and may be adjusted with mutual agreement. The research work on those topics will constitute the basis for the Doctoral Dissertation of the students. Each research project will be undertaken by the Chinese Students under the guidance of at least one European professor, from PdT or TUD, and one Chinese professor from SJTU. An industrial expert may be involved too as a thesis external advisor.

    For any further information please visit the site http://www.polito.it/eclee or refer to the site coordinators of the project.

 

   

2. RESEARCH TOPICS LIST

    In the following is reported a list of research topics that will constitute the core activity for the write-up of the Doctoral Dissertation of the Chinese students.
   The topics are listed in two different groups with reference to the hosting European University in which those topics will be developed.

   
Politecnico di Torino - Italy

  • Power economics issues in competitive electricity markets
     

  • Risk evaluation in the deregulated electricity markets
     

  • Non-conventional generators for distributed generation and their technical-economic impacts


  • Technische Universität Darmstadt – Germany

  • Ancillary services in the deregulated energy market
     

  • Information processing in substations
     

  • Design of fault-tolerant Steer-by-Wire actuator for automotive application
     

  • Permanent magnet synchronous hydro-generators – Design procedure and operational performance

  •  

     

    3. RESEARCH TOPICS DESCRIPTION AND REFERENCE PROFESSORS - (POLITECNICO DI TORINO)

       
    3.1. Proposal 1 - Power economics issues in competitive electricity markets

        Abstract

       The introduction of competition in the electricity markets is underway all over the world. Electricity is considered as a commodities to be traded on a competitive market as well as other commodities. Nevertheless electricity is characterized by strong physical and operational constraints that pose special challenges to the electrical world. Those constraints may cause congestion to arise and could deeply impact the electricity market from the economic point of view in many respects as power system security, market efficiency, market power and lack of competitiveness.

       The study of the equilibrium points of the markets and their characterization in terms of economic metrics, in this context, is of the utmost importance. In this area different topics will be addressed as, for example, the elastic load modelling in a competitive environment, optimal strategic bidding, equilibrium points evaluation, competition analysis, market power assessment and countermeasures.

       Those studies require the application of classical microeconomics theories and tools to power system as game theory and auction theory that will be applied to real scale case test systems. The research aims to develop simulation tools for market analysis and training of the market operators.

       
        Profile of the candidate


        Recommended graduate courses

        Supervisors

     

    3.2. Proposal 2 - Risk evaluation in the deregulated electricity markets

        Abstract

       The electricity is one of the most important commodities in the life of modern societies and for that reason it should be assured a proper level of security. The electricity markets is subject to many different risks both technical and economical. Those risks may depend both on the market design rules or on the unfeasibility of an operational point as in the security analysis. The research aims to explore and categorize all the possible risk and to develop proper risks and evaluation tools. A particular attention will be devoted to the security analysis starting from the classical approach of n-1 approach and figuring out some possible probabilistic approaches that would be more suitable in a market context.


        Profile of the candidate


        Recommended graduate courses


       
    Supervisors

     

    3.3. Proposal 3 - Non-conventional generators for distributed generation and their technical-economic impacts

        Abstract

       The evolution in the technology will probably lead in the mid term to the possibility of a deep change in the power system due to the introduction of the distributed generation, with particular reference to the micro-turbines and fuel-cells. Those devices pose new challenges both from the technological point of view and from the integration in the existing electrical grid. The research aims to study and to model the devices, to evaluate different types of micro-generator together along with their technical, economical and environmental impacts on the system. The research will benefit from the local availability of a well featured and newly built Lab for the hydrogen technologies in which several activities are performed (http://www.hysylab.com).


        Profile of the candidate


       
    Recommended graduate courses


       
    Supervisors

     

     

    4. ABSTRACTS OF RESEARCH TOPICS AND REFERENCE PROFESSORS (TECHNISCHE UNIVERSITÄT DARMSTADT)

    4.1. Proposal 1 - Ancillary services in the deregulated energy market

        Abstract

       The deregulation of the electric power industry seeks to segment the vertically integrated utility into a horizontally integrated set of companies. This segmentation intends to promote competition in each sector (generation, transmission and distribution). The generation market has been deregulated more than the other sectors. It presently experiences a high level of competitiveness.
    Generation is not only selling energy but also ancillary services, as well as byproducts. The ancillary services provide for the transportation of the electric energy under normal and abnormal conditions. Power plants offerring these services have to compete on the market. So they have to calculate their costs by taking into account the complete energy situation. The dependencies among the competitors of the given economy should be described by a model regarding every service offered in the course of one or several periods of time. The model should also include the introduction of distributed generation, new fuel conversion technologies, demand side management, as well as demand-side storage. The complexity of such models is obviously extensive and requires a significant amount of verified data for computation.


       
    Profile of the candidate


       
    Recommended graduate courses


       
    Supervisors

     

    4.2. Proposal 2 - Information processing in substations

        Abstract

       Electric utility regulation, economic pressures forcing downsizing, and the marketplace pressures have forced utilities to examine their operational and organizational practices. Utilities are realizing that they must shift their focus to customer service. Customer service requirements all point to one key element: information, i.e., the right amount of information to the right person or computer within the right time.
    The flow of information requires data communication over extended networks of systems and users. In fact, utilities are becoming among the largest users of data and are the largest users of real-time information. The advent of deregulation had placed greater emphasis on the availability and analysis of information, and the subsequent decision-making to optimize system operation in a competitive environment. Intelligent electronic devices (IEDs) being implemented in substations today contain valuable information, both operational and nonoperational, needed by many user groups within the utility. The challenge facing utilities is determining a standard integration architecture that meets the utility’s specific needs, can extract the desired operational and nonoperational information, and delivers this information to the users who have applications to analyze the information.


       
    Profile of the candidate


      
     Recommended graduate courses

     

    4.3. Proposal 3 - Design of fault-tolerant Steer-by-Wire actuator for automotive application

        Abstract

       Today´s steering of cars is done by mechanically coupling of driver´s steering wheel and car´s wheels, supported by a servo system. Future steering will be accomplished by an electronically connected driver´s wheel, acting on a electromechanical actuator, which will give the steering forces on the car´s wheel set. The advantage of this "steering-by-wire" is the possibility to stabilize the steering of the car in dangerous situations, like slippery road with an autonomous steering control. This concept is already used in modern air-craft, thus substituting the hydraulical steering force generation by electrical force generation.
    Fault-tolerance is a necessary feature of the electromechanical steering actor, as failure of one winding must no lead to malfunction, thus keeping up safe operational performance. The task of the Ph. D. thesis is to design an electromechanical actuator, consisting of MOSFET power controller, feeding the windings of an electrical motor, which is acting via gear or even gearless, on the wheel position system. The motor itself may be of permanent magnet brushless DC type, induction type or switched reluctance type. Design of motor can be done with modern CAD Finite element software (e.g. ANSYS). MATLAB/Simulink simulation of interaction of actuator and wheel-system will give insight into dynamical performance. Emphasis has to be laid on fault-tolerant operations such as multi-phase motor and inverter system. A prototype set-up shall be built at our department´s lab to measure steady-state torque, power consumption, dynamic performance and influence of faults such as winding failure on force generation. Support of automotive industry with relevant car data will be given.


       
    Profile of candidate

        Recommended graduate courses


        Supervisors

     

    4.4. Proposal 4 - Permanent magnet synchronous hydro-generators – Design proecedure and operational performance

        Abstract

       Extensive use of hydro power will be necessary in the future to cope with the environmental problems due to thermal electric power generation. Small hydro power stations up to several MW are therefore also interesting solutions. They usually comprise induction generators which are cheap, but need reactive power for magnetization. With the advent of high energy permanent magnets and their actual cost decrease compact and low loss synchronous generators are available, which allow even over-excitation or operation at unity power factor. Several prototypes have already been built at manufacturing companies and have proven their advantages. Still questions are open concerning optimum rotor configuration, cost-effectiveness, robustness and reduced maintenance.
        For given small hydro power generation stations with available data in the range of 500 kW to several MW, supplied by industry, in this Ph. D. thesis the design of optimum directly grid-operated permanent magnet synchronous generators shall be done. Bulb-type generators are preferred as they yield lowest hydraulic losses and a simple style of erecting the whole generator system. Modern CAD tools are available, based on finite element programs like ANSYS and MAFIA, to design the magnetic circuit and optimize the dimensions of the electric machine. System performance under different load conditions like grid asymmetry or short-circuit conditions shall be evaluated with these tools and with transient operation software. Overall system modelling will be done in the second step with the machine´s parameters as input. DYMOLA/Modelica and MATLAB/Simulink software is available for this purpose to show how transients are damped by the rotor damper system. Co-operation with hydro-power industry will be assured to get realistic input data for generator design.


        Profile of candidate


        Recommended graduate courses


        Supervisors