Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 1 UNIVERSITY OF DERBY College of Engineering and Technology Department of Engineering Electrical and Electronics Engineering Electrical Power Systems Module Code: 6EJ515 MODULE HANDBOOK AY: 2014 – 2015 Module leader: Prof M. Darwish London College UCK – Room: 226 Direct Tel.: 020 7243 4000 Email: firstname.lastname@example.org Validated module specifications – March 2012 College of Engineering and Technology Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 2 Welcome to the Electrical Power Applications Module: This handbook provides key information about the module and provides everything you need to get started with your studies. This includes the validated module specifications, learning schedule, assessment specifications and assessment criteria, supplementary information, and contact details of key module staff and support departments. It is really important that you familiarise yourself with the information in this handbook and that you note in particular key facts and key dates listed below. It is also important to note that a wider range of information and interactivity is provided online in Course Resources. Please make sure that you engage regularly with online module information and that you check your unimail email account for module related updates and general learning communication. Make a plan using this handbook for guidance and monitor your progress. Electrical power applications module addresses the main elements of electrical power systems and its industrial utilisation. It explains in depth the basic structure of power systems, principles of AC power circuits, three-phase systems balanced and unbalanced, per unit systems, the main components of power systems: generators, transmission lines and transformers, symmetrical components and short circuit calculations. Power flow problems and techniques are also covered. The module concludes with some industrial case studies of industrial applications and power system stability. Industrially relevant hardware and software design skills are developed; including the use of industrial power systems test rigs, and MATLAB, SIMULINK and PSS SIGNCAL tools. A major practical and computer simulation assignment adopts a Problem Based Learning approach, with student teams being required to develop electrical power applications, to meet given tasks design specifications. There will be also a series of industrial visit to gain the practical sense of the actual system in power station. Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 3 Module Title: ELECTRICAL POWER APPLICATIONS Module Code: 6EJ515 Pre-requisite: None No. of Credits: 20 Credit Level: 6 Mandatory Pre-requisite: None Co-requisite: None Learning Hours: 200 Key Words: generation, transmission, utilisation, power flows, per unit, three- phase systems. Module Delivery: Face to Face Lecture: Mondays: 10:00 – 12:00 – WK 1-12 (Room: 111) Tutorial: Mondays: 13:00 – 15:00 – WK 1, 2, 3, 5, 7, 10, 11 (Room: 111) Practical: Mondays: 13:00 – 16:00 – WK 4, 6, 8, 9 (Room: B6) MODULE DESCRIPTION: This module addresses the main elements of electrical power systems and its industrial utilisation. It explains in depth the basic structure of power systems, fundamentals of AC power circuits, three-phase systems balanced and unbalanced, per unit systems, the main components of power systems: generators, transmission lines, transformers and protection units, symmetrical components and short circuit calculations. Power flow problems and techniques are discussed. The module concludes with some industrial case studies of industrial applications and power system stability. Industrially relevant hardware and software design skills are developed; including the use of industrial power systems test rigs, and MATLAB, SIMULINK and PSS SIGNCAL tools. A major practical and computer simulation assignment adopts a Problem Based Learning approach, with student teams being required to develop electrical power applications, to meet given tasks design specifications. There will be also a series of industrial visit to gain the practical sense of the actual system in power station. MODULE LEARNING OUTCOMES: On successful completion of the module, you will be able to: 1. Evaluate, test and report the characteristics of high and low voltage electrical power distribution networks. 2. Identify, select, programme and test suitable power flow techniques and algorithms to solve network power, voltage and current distributions. 3. Select, apply and evaluate design methods to improve the performance of AC power distribution systems. Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 4 4. Analyse and specify the protection, operation and safety features of electrical distribution systems. MODULE CONTENT: Introduction to Electrical Power Systems Bus classifications, nodal admittance matrix, development of load flow equations, iterative methods, and fast de-coupling load flow Low Voltage Distribution Networks Commercial networks, supply transformers, ring mains, distribution boards, power consumption. High Voltage Distribution Networks Distribution networks for factory or industrial distribution systems, power transformers. Protection for High Voltage Systems Graded protection systems, types of relays, types of overload relay, thermal, IDMT, differential, under voltage, instantaneous, high voltage switchgear Fault Analysis Symmetrical component analysis, effects of unbalanced loads on power systems. Per unit notation, short circuit calculations with earth and phase to phase faults System Performance Power factor of unbalanced and complex systems, harmonics and the effects on the system voltage and users connected to the point of common coupling, static vars compensation, power factor correction, regulation compensation, synchronous capacitors, and filters. Case Studies and Sustainable Electrical Power Applications Case studies of electrical power system industrial applications (e.g. aerospace, automotive and railway electrical power applications) and some fundamentals on power system stability MODULE LEARNING AND TEACHING METHODS: There will be 12% of the total hours lectures, in which key features of electrical power applications will be introduced. This will include study of selected number of industrial applications, and the use of electrical power systems. 12% of the total hours will be allocated to practical work. You will be given a set of tasks to design, simulate, build and test against; this forms part of the module course work. Scheduled learning and teaching activities: 25% Guided independent study: 75% MODULE ASSESSMENT METHODS: Assessment Weighting: 60% Coursework & 40% Exam Formative: At an early stage in the module you will be given formative feedback on your performance in the laboratory, which will provide comment on both your practical and analytical skills. CW: 60% weighting: Learning Outcomes 1 & 2 Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 5 Part A: Assignment covering laboratory work that include the build, test, analysis of characteristics and design specifications of various electrical power applications, transmission, distribution, utilisation, protection, operation and safety features of electrical distribution systems (2000 words). Part B: report covering laboratory work that include power flow studies analysis, algorithm selection, programming, test and design specification verification of various electrical power applications and advanced techniques used for power flow problems (2000 words). EX: 40% weighting: Learning Outcome 3 & 4 A 2-hours, closed book, No special conditions apply, Support material will be provided in the exam sheet Please note that the rules on academic offences will always be applied. Make sure you have a complete understanding of what constitutes plagiarism and collusion. More details regarding academic regulations and offences can be found at: www.derby.ac.uk/regs http://www.derby.ac.uk/online/ongoing-support/academic-offences READING LIST: 1. Powe
r System – Analysis and Design, 5 th Edn, J. DUNCAN GLOVER, MULUKUTLA S. SARMA, THOMAS J. OVERBYE, © 2012 Cengage Learning 2. Power System Analysis, T. K. Nagsarkar & M. S. Sukhija, Oxford higher education, © Oxford University Press 2007 3. Electric Power Systems, S. A. Nasar, Schaum’s Outlines, 1990. Accommodation and Equipment: This module will make use of the e-learning, online research facilities and available electrical and electronics laboratory and computer software facility in B4 and B5 HEALTH AND SAFETY All activity will be taking place in University lecture space and computing labs. Risk assessments covering these activities can be found: http://www.derby.ac.uk/adt/healthandsafety Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 6 LEARNING SCHEDULE Cams Wk Teaching Wk Material covered 1 1 Introduction to Electric Power Systems: Generation, transmission and generation; sustainable aspects in the development of power syetem. 2 2 General methods for network calculations: Bus admittance matrix; bus impedance matrix. 3 3 Power-flow studies: Iterative procedure; power-flow equations; the Gauss and Gauss-Seidek methods; the Newton-Raphson method; bus voltage specification and regulation. 4 4 DC distribution networks; AC low voltage distribution networks (transformers, ring mains, distribution boards’ power consumption). 5 5 AC high voltage distribution networks; AC distribution calculations; methods of solving AC distribution problems 6 6 Network protection (circuit breakers, fuses, protective relays). 7 7 Protection of alternators and transformers; protection of busbars and lines; protection against overvoltage. 8 8 Symmetrical fault analysis (symmetrical fault calculations; limitation of fault current). 9 9 Unsymmetrical fault analysis (single line-to-ground fault; line-to-line fault; double line-to-ground fault). 10 10 Introduction to System Performance, Power factor of unbalanced and complex systems 11 11 harmonics and the effects on the system voltage and users connected to the point of common coupling, static VARS compensation 12 12 Power factor correction, regulation compensation, synchronous capacitors, and filters Revision Revision Note: A full copy of the undergraduate calendar can be located at: www.derby.ac.uk/files/academic_calendar_1415_pdf_70.pdf Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 7 COURSEWORK SPECIFICATIONS Coursework Title_1: An Investigation into the characteristics of high and low voltage electrical power distribution networks Key Words: High voltage distribution; low voltage distrbution Equipment: Power Analyser; Model of AC distribution system; AC/DC Power converter. Software Tools: OrCAD and MATLAB/Simulink Weighting: 30% Submission Deadline: Submission of the final report by 21:00 hours Monday the 27 th of October 2014 Submission, Format and Process: Research reports will be submitted via Turnitin online submission system via the module area of Course Resources. Submissions need to be made using standard text document using black text on white paper in 11 point font size. Further guidance is available via the Turnitin submission interface. Description: Major components of an electric power system are generation, transmission and distribution. Distribution, including high voltage and low voltage. In this assignment you are going to investigate the characteristics of low voltage distribution networks including modern AC/DC conversion and low voltage DC distribution system. You are required to submit an assignment of 2000 to 2500 words only. Directed studies work introduced in the lecture, laboratory & tutorial sessions will form the basis for most of the assignment topics but you are encouraged to extend the assignment according to your own interests and professional skills development needs and to use the assignment as a platform for becoming more proactive with electrical power system design, analysis, simulation, prototyping, test, validation and wider personal development opportunities. The assignment must include and explore the following prescribed topics: (1) Carry out a series of simulation/laboratory experiments to study the characteristics of a low voltage distribution network. (2) Carry out a series of laboratory experiments to study the AC/DC power converters supplying resistive, and inductive loads, (3) Conduct a series of simulation/laboratory assessments to determine the power factor for linear and non-linear loads connected at distribution network. (4) Conduct a series of simulation/laboratory assessments to evaluate the current and voltage harmonics in power distribution networks. (5) Examine and analyse real, apparent and reactive power Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 8 components in linear and non-linear loads. (6) Evaluate the optimum capacitor value for unity / near unity power factor for power distribution network. (7) Explain your own thoughts, observation for each of the tests above and provide your professional comments. In fundamental nature the assignment is designed to support your development as an undergraduate learner and to outline a process of personal verification and evaluation. The purpose of learning is to develop competent graduates that are knowledgeable, creative, has capabilities of design and build skills and vision to bring fresh potential ideas to business. Use this assignment as a first step in redefining yourself as a professional. In completing this assignment the student will have developed skills in: Evaluate, test and report the characteristics of high and low voltage electrical distribution networks. Assignment resources: UCK Electrical Power Laboratory. Lecture, Tutorial and Practical notes available on the university black board Reference text books available in the library Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 9 Coursework Title_2: An Investigation into Electrical Power Network Power Load Flow Studies Using Advanced Computing Simulation and Analysis Tools Key Words: Load flow, Power Network, Power System Flow, Jacobi Method, Gauss Seidal, Impedance Matrix Method Equipment: PC PSS@SINCAL Power Tools & MATLAB/Simulink etc. … & MS123 & MS210 Software Tools: ETAP software and MATLAB/Simulink. Weighting: 30% Submission Deadline: Submission of the final report by 21:00 hours Monday the 1 st of December 2014 Submission, Format and Process: Research reports will be submitted via Turnitin online submission system via the module area of Course Resources. Submissions need to be made using standard text document using black text on white paper in 11 point font size. Further guidance is available via the Turnitin submission interface. Description: Load flow studies are used to determine the voltage, current and power, both the active and reactive components and their associate power factors, at all the node points in a specific power system network. Load flow studies should indicate the likely behaviour of the power system network in terms of: The flow of MW and MVAR in the various branches of the network, The precise bus-bar voltages, Effects of any partial rearrangement of the system inter-connections, or the consequences of adding further networks, The outcome of any loss of overhead line or underground cable, The results of changes in transformer tap position, The optimum performance of the system with minimum losses, Justification for any recommended system improvements. The complexity of obtaining a formal solution for load flow in a power system network arises because of the differences in the type of data specified for the various nodes (bus bars), of the system. In this assignment the student is expected to adapt any two separate well known iterative methods to solve the actual load flow distribution in a given power network. Each of these two iterative techniques is to be performed mathematically (for small network) and using ETAP software (for a large network). It is very well known that the methods that have been developed for solving this power network problem are: (1) The Newton-Raphson and (2)
the Gauss Seidal Methods. The assignment must include and explore the following prescribed topics: Carry out the mathematical calculation of at two-buses interconnected by a transmission line of given impedance. Your task is to determine the per-unit value of one of the Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 10 buses (given the voltage at the other one) and also to calculate the per-unit real and reactive power on both buses. Carry out a series of computer simulation using ETAP software for Buses/Nodes – seven lines network. Run the load flow analysis of the network and generate a summary report of your simulation. Analyse the results of each simulations and provide the necessary graphical analysis of the results, Explain your own thoughts, observation for each simulations and comment on it. In fundamental nature the assignment is designed to support your development as an undergraduate learner and to outline a process of personal verification and evaluation. The purpose of learning is to develop competent graduates that are knowledgeable, creative, new capabilities of design and build skills and vision to bring fresh potential ideas to business. Use this assignment as a first step in redefining yourself as a professional. In completing this assignment the student will have developed skills in: Identify, select, programme and test suitable power flow techniques and algorithms to solve network power, voltage and current distributions. Solving the load flow distribution problem in electrical power networks, Developing algorithms to describe the methodology for solving the electrical power load flow problem in power network, Using the ETAP computer programming software. Assignment resources: UCK Electrical Power simulation laboratory. Lecture, Tutorial and notes available on the university black board Reference text books available in the library Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 11 ASSESSMENT DESCRIPTORS COURSEWORK Percentage Grade Descriptors Outcome Class 90-100% Exceptional quality work. The assignment report demonstrates considerable engagement with focused academic topics and an exceptionally detailed and considered approach to learning and essential enquiry. Understanding connections are established between information sources, theoretical perspectives and related concepts and ideas and the assignment title interpreted in an original and creative way. Trivial weaknesses only. LEARNING OUTCOMES HAVE BEEN MET First 80-89% Excellent quality work. The assignment report is detailed, concise and demonstrates considerable interaction with academic study sources. A significant range of information is drawn together in a meaningful and productive manner and information is presented in a highly logical and coherent style. Very minor criticisms only. 70-79% Very good to excellent work incorporating detailed consideration of a wide range of relevant information and ideas. The assignment title is interpreted in a consistent and rigorous way with a high level of detail and clarity. Very minor issues only. 60-69% Very good work incorporating a significant level of information and depth and detail of study and evaluation. Information sources are appropriate and numerous and evaluation completed carefully and methodically. The assignment title is interpreted effectively and a relatively clear line of enquiry maintained. There is scope for more detailed engagement with substantial study sources and wider subject information, and for clearer synthesis of concepts and ideas. Minor issues only. Upper Second 50-59% Good work indicating a consistent engagement with the assignment objectives and consideration of relevant study and information. Some connections are established between information sources and a sound level of historical and contextual understanding is demonstrated. There is scope for more evidence of focused academic study, synthesis of information drawn from information sources, or more meaningful connection to be established between concepts, theories and ideas. Some inaccuracies or weaknesses apparent. Lower second 40-49% Satisfactory standard work that successfully addresses each of the specified requirements. Clear evidence is provided of study and consideration of the selected study topic. Work would be improved through more detailed review of topics literature, including more focused academic sources, Some clear errors, weaknesses or misunderstandings in evidence. Third 35-39% Unsatisfactory work incorporating some aspects of the required assignment components but indicating significant lack of understanding or failure to connect understanding gained through study effectively with the selected study topic. Learning outcomes not met Marginal Fail 1-34% Very poor work indicating an incomplete submission or generally superficial engagement with the assignment objectives. Some outline information but nothing to substantiate meaningful interaction with the notional learning time. No evidence of understanding or evidence of serious misunderstanding. Fail NS Non-submission: No work has been submitted. Z Academic offence notation: Applies to proven instances of academic offence. Note: An assignment checklist will be published separately to support effective personal evaluation of assessed work prior to submission. The university assessment grading scale and related regulations can be accessed via: http://www.derby.ac.uk/academic-regulations Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 12 Electrical Power Applications – CODE: 6EJ503 LABORATORY EXERCISES RECORD OF RISK ASSESSMENT Assessment Reference UOD – Electrical/Electronic Laboratory Activity assessed Experimental Procedures on Electrical / Electronic Equipment Persons who may be affected by the activity Students, Academic Staff, Technician Staff, Short Course Participants, Open Day and other Visitors, Cleaning Staff. SECTION A : Initial Assessment Overview Consider the activity or work area and identify if any of the hazards listed below are significant. 1 Fall of person 7 Machinery 13 Electricity 19 Substances 25 Drowning 2 Fall of objects 8 Tools/Equipment 14 Noise or Vibration 20 High Pressure 26 Psychological effects 3 Tripping/Slipping 9 Mobile work equipment 15 Hot / Cold Surfaces 21 Fire/ explosion 27 Human error 4 Manual handling operations 10 Mechanical lifting equipment 16 Workstation – layout / space 22 Lighting 28 Violence 5 Repetitive work 11 Display screen equipment 17 Radiation 23 Confined space 29 Peripatetic / lone working 6 Housekeeping / waste material 12 Sharp objects 18 Temperature / weather 24 Buildings & glazing 30 Other(s) SECTION B: Second Stage Assessment S = Severity For each hazard identified in Section A complete Section B L = Likelihood Hazard No. Hazard Description EXISTING CONTROL MEASURES S L Residual Risk 2 Fall of objects within the storage area Safe storage of all equipment, objects, tools and materials 2 1 Tolerable risk 3 Trip on obstructions Good housekeeping. Student bags out of gang way All electrical cables routed safely All materials stored away All floor surfaces in good condition Maintenance Socket system for fault reporting 1 2 Tolerable risk 4 General handing of equipment, furniture, tools and materials Each student given a clear explanation and guidelines on how to use and handle equipment before use General instruction on handling techniques during induction Portering services used for larger items Special consideration for new and expectant mothers, see University policy; Safety of New and Expectant Mothers 2 1 Tolerable risk 11 Display screen equipment Physiological effects including posture Use of display screens to be time limited in accordance with the university policy on the use of display screen equipment 1 2 Tolerable risk Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 13 8,9,13 Risk of electrical shock Contact with live parts of fixed installation. Electrical risk from faulty portable electrical appliance All electrical equipment Portab
le Appliance Tested (PAT) and stickers used to indicate electrical safety status. Health and safety talk given at induction. Each student signs the Health and Safety Booklet to indicate that they have read and understood the details. Power supplies for electronic circuits leading to exposed voltages restricted to below 50V dc Connection to 3-phase supplies is restricted by padlock; only performed under the direct supervision of a key holder, who is a competent member of staff. There must be no exposed live parts having voltages in excess of 40V ac or 50V dc with respect to earth. Equipment connected to single or 3-phase supplies must be adequately earthed. All live parts fully enclosed. University policy on Electrical Safety applied – http://www.derby.ac.uk/adt/healthandsafety 4 1 Tolerable risk 21 Fire resulting from electrical equipment Electrical equipment well maintained and tested. Evacuation procedures (General) 3 1 Tolerable risk All Normal working is in classes while under staff supervision. Students may also access the space for a specific period by permission from technician or academic staff. Lone working is not permitted. Assessor(s) Prof. M. Darwish Signed Date of Assessment Revision No. 3 General Module Information: For this module you should expect to manage approximately 150 hours of personal study and assignment preparation time during the 12-week semester alongside the timetabled sessions. This equates to approximately 12 hours per week in directed study work alongside 4 hours per week in lectures and tutorials. Attendance at taught sessions is critical to ensure successful completion of assessed work and a compulsory requirement of the Module. Un-notified absence is in breach of University regulations. Notification of an unavoidable absence from a Lecture, Seminar, or Tutorial should be submitted in advance (wherever practicable) to: Helena Mountford, London College, Top Up coordinator: email@example.com Help, support and well-being: Balancing the demands of undergraduate study with other life commitments and opportunities can be challenging and there will be occasions when the level of challenge becomes significant. If you need help or support, please ask. Module related questions and queries should be addressed within the tutorial sessions and via online module discussion boards. If you are unsure about anything, or if you think you are struggling with any aspect of the coursework, please contact the module leader via email. If you experience any problems that disrupt your studies please contact your Personal Tutor, Programme Leader, Subject Leader or the Student Liaison Officer as soon as possible. There are also a number of additional support services available and information is available online. Electrical Power Systems Module Handbook 2014-2015 V1.1 Prof M. Darwish 14 You will have been allocated a personal tutor for your studies. Your personal tutor may contact you to arrange meetings on an interim basis and will publish information about available times for drop-in contact or discussion throughout the academic year. It is important that you take advantage of this support and that you feel able to contact your personal tutor whenever you need help relating to your studies. Please do familiarise yourself with your personal tutor and get in touch whenever you need support. It is important that you familiarise yourself with the appropriate section of the general institutional health and safety regulations to ensure your wellbeing: A range of support services is available for undergraduate students. The UCK as well as the British libraries house a range of resources to support student learning. Access to Facilities: Computing facilities are normally available for access outside of teaching hours whenever the college is officially open. Assessment regulations and processes: In order to reduce unnecessary travel and queuing time for students, the University is moving to electronic submission (e-Submission) of all assignments where this is possible. Your tutor will advise you if this is not the case for the assignments of this module. Start by taking a look at the e-Sub website www.derby.ac.uk/esub as this is the main site supporting students with e-Submission and provides support documents and videos to talk you through the whole process. You will also find a printable guide In the Assessments area of your module called Electronic Submission Guide for Students this will talk you through the submission process and guide you to further resources to help you submit your work. Full details about assessment specifications will be provided in lectures and tutorials. It is however important to familiarise yourself with the assessment regulations relating particularly to plagiarism and academic offences, and the significance of completing and submitting work on time. Assessment regulations are available from: http://www.derby.ac.uk/academic-regulations If you experience significant personal difficulties that compromise your ability to complete assessed work by the stipulated deadline, please refer to the Exceptional Extenuating Circumstances regulations at: http://www.derby.ac.uk/eec Should you receive referral opportunities in any or all coursework submissions, referred coursework components will be required for submission by:_____________. Referral requirements will be published following the module results via Course Resources.