DC-DC power electronic Project Title: converter for an electric vehicle drive. AIM OF PROJECT The design and control of a dc-dc power electronic converter for an electric vehicle drive. The converter will be required to control power flow from battery pack to electric motor and to control power flow in the reverse direction due to regenerative braking of the motor. 2 Summary of work to be undertaken for satisfactory completion: (This will form the project brief to students and should list the main milestones that need to be achieved. Please attach an additional sheet if further information is available. If industrially based include company name and contact details). 1. Research current and emerging battery and electric motor technologies for electric vehicle drives and critically evaluate them. 2. Select appropriate battery and motor types and give a detailed theoretical analysis of them. Specify current, voltage and power parameters for both battery pack and motor. 3. Research dc-dc power electronic converters for electric vehicles drives and provide a critical evaluation of the topologies. For a suitable converter topology, design the power circuit and the control circuit. 4. Simulate the battery/dc-dc power electronic converter/motor drive scheme using an appropriate simulation tool. 5. Critically evaluate the simulated operation of the dc-dc power electronic converter in the drive scheme. Identify areas for improvement and further work. Written Assignment IMPORTANT IMPORTANT NV Marking Scheme Log-book /Viva Voce 20 concise discussion of the and Exceptionally lucid, pertinent, accurate succinct with cross statements in the conclusions recommendations and to sections evidence contribution with of to with accurate use of the Harvard system Conclusions- Reflection and Recommendations 10 Referencing & Bibliography 5 Outstanding comprehensive referencing and bibliography Project layout 5 Outstanding presentation, logically and coherently structured, using correct grammar and spelling Outstanding verbal defence of work evidence by outstanding, clear, succinct, accurate and knowledge thorough responses to questions cross where Excellent pertinent, accurate succinct statements in the conclusions and and to recommendations sections Excellent referencing and bibliography with accurate use of the Harvard system and Excellent presentation, logically coherently structured, using correct grammar and spelling Excellent verbal defence of work evidence by clear, succinct, accurate and thorough responses to questions Classification Range Introduction Literature/Research (Level 6) of Marks with Abstract 5 Reviews 15 % 1 79.5- Outstanding Extensive and Outstanding 100% insightful comprehensive work evaluation and evidence of integrating (1st) synthesis of issues and material which applied & includes an original and reflective approach 2 Excellent 69.5 <79.5% Excellent work (1st) evaluation and synthesis of issues and material which includes some original and reflective thinking recent, appropriate supplementary sources of literature Extensive evidence of integrating, recent, appropriate applied & supplementary sources of literature Development- Design 20 a The application of design shows an excellent grasp of available techniques and the ability to judge how specification can most effectively be met, producing work of outstanding quality. Appropriate design and construction techniques are being successfully applied a high professional standard. to Development- Implementation & Testing 20 Evaluations of all systems and sub-systems responses and/or results is made at planned junctures, and at other times when clarification of performance is found to necessary, and effective modifications based on analytical assessments made with little difficulty. Thorough testing is carried out as a matter of routine at each major stage and at other times when clarification of performance is found to be necessary, with well-chosen results compared with predicated behaviour and effective modifications put in place. Discussion- Analysis of outcomes 20 Thorough, accurate and analysis statements referencing where appropriate published information. Accurate and concise discussion of the analysis with statements referencing appropriate published information 9 3 59.5 Very good <69.5% quality work (2:1) 4 Good quality work (2:2) Thorough and accurate evaluation and synthesis of issues material and 49.5 <59.5% Accurate description main issues and material, with some critical evaluation of Very good evidence of integrating, recent, appropriate applied & supplementary sources of literature Good evidence of integrating, recent, appropriate applied & supplementary sources of literature Demonstrating a working good knowledge of available design and construction techniques that are being applied with considerable success A competent demonstration of basic design skills and knowledge 5 39.5 Limited Satisfactory (3rd) <49.5 % evaluation and of Satisfactory evidence integrating, description of appropriate applied & supplementary sources of literature Design skills are evident but repeated guidance on their exploitation sometimes necessary. 1S main issues and material Testing is carried out at major stages and any other time when clarification of performance is thought to be necessary, comparison of results with predicted behaviour made modifications put in place. and Testing is carried out as a routine at major stages, comparison with predicated behaviour made, and modifications put in place. Very good and concise discussion of the analysis with statements some cross referencing where appropriate to published information. Good discussion of the analysis with some statements cross referencing where appropriate to published information. Testing is carried out at a few stages and at the remaining when prompted. Comparison with theoretical expectations is often made but not always. Some essential modifications are not always realised to be necessary. Satisfactory discussion analysis occasional statements referencing published information. of the with cross to Very good accurate and statements succinct in the conclusions recommendations sections Very referencing and bibliography good Very good Very good presentation, logically competently structured, using defence of work and evidence clear by and accurate good grammar and spelling responses to questions and with accurate Good accurate and clear statements in the conclusions and recommendations sections Satisfactory statements in the conclusions and some reasonable recommendations use of the Harvard system Good referencing and bibliography with use of the Harvard system Satisfactory referencing and bibliography with use of the Harvard system with Good defence of work and reasonable responses questions Good presentation, logically reasonably structured, using good grammar and spelling Satisfactory structure to Satisfactory defence of work with reasonable and presentation, using acceptable grammar and responses questions spelling to 6 Unsatisfactory (Fail) 29.5 <39.5% Weak evaluatio Marginal evidence of and description ofntegrating, main issues and ppropriate applied & material, withupplementary sources of literature some errors Limited success with circuit/software developed. Unlikely to obtain a pass grade at this level of effort, skills and knowledge of design Testing is carried out in a disorganised manner with the results not fully understood or acted upon Very weak discussion of the analysis with errors and little to no cross referencing published information. to Unsatisfactory and weak statements in the conclusions and recommendations sections Inaccurate or limited referencing and bibliography with errors in the use of the Harvard system Unsatisfactory structure and presentation, with errors in grammar and spelling Unsatisfactory or weak defence of work with poor responses to questions 10/n