Course Title: Energy Conversion II
Type of Course: Compulsory, Theory
Offered to: EEE
Pre-requisite Course(s): None
Synchronous Generator: construction, armature (stator) and rotating field (exciter), excitation system with brushes and brushless excitation system, cooling, generated voltage equation of distributed short pitched armature winding, armature winding connections and harmonic cancellation in distributed short pitched winding, equivalent circuit, synchronous impedance, generated voltage and terminal voltage, phasor diagram, voltage regulation with different power factor type loads, determination of synchronous impedance by tests, phasor diagram, salient pole generator d-q axes parameters, equivalent circuit, generator equations, determination of d-q axes parameters by tests, equation of developed power and torque of synchronous machines (salient and non-salient pole motor and generator).
Parallel Operation of Generators: requirement of parallel operation, conditions, synchronizing, effect of synchronizing current, hunting and oscillation, synchroscope, phase sequence indicator, load distribution of alternators in parallel, droop setting, frequency control, voltage control, house diagrams.
Synchronous Motors: construction, operation, starting, effect of variation of load at normal excitation, effect of variation of excitations, V curves, inverted V curves and compounding curves, power factor adjustment, synchronous capacitor and power factor correction.
DC Motors: principle of operation, constructional features, back emf and torque equations, armature reaction and its effect on motor performance, compensating winding, problems of commutation and their mitigations, types of dc motors and their torque speed characteristics, starting and speed control of dc motors, applications of different types of dc motor.
Single Phase Induction Motor: operation, quadrature field theory, double revolving field theory, split phasing, starting methods, equivalent circuit, torque-speed characteristic and performance calculation.
Renewable Energy: Introduction to photovoltaic systems.
To understand the construction and operations of synchronous generator (alternator), synchronous motor, DC motor, single phase induction motor and photovoltaic system
To analyse the characteristics of salient and non-salient pole generators and motors, to calculate various machine parameters based on design data and test results
To demonstrate the parallel operation of generators/infinite bus system
To be familiar with the application of renewable energy technology such as photovoltaic systems
Fundamental concepts of Electrical Circuits I & II course, application of Faraday’s law, and Energy Conversion I course
| CO No. | CO Statement | Corresponding PO(s)* | Domains and Taxonomy level(s)** | Delivery Method(s) and Activity(-ies) | Assessment Tool(s) |
|---|---|---|---|---|---|
| 1 | Explain the operations of synchronous and other (1-φ, DC) electrical machines by applying the knowledge of electrical circuits and electromagnetic induction | PO(a) | C2, C3 | Lectures, Discussions | Assignment, Class test, Final exam |
| 2 | Analyse the techniques of parallel operation of alternator (to another alternator and to infinite bus system) | PO(b) | C4 | Lectures, Discussions | Assignment, Class test, Final exam |
| 3 | Design solar home system satisfying necessary requirements | PO(c) | C6 | Lectures, Discussions | Assignment, Final exam |
| 4 | Compare renewable energy technology with conventional energy generation technology | PO(g) | C5 | Lectures, Discussions | Assignment, Class test, Final exam |
Cognitive Domain Taxonomy Levels: C1 – Knowledge, C2 – Comprehension, C3 – Application, C4 – Analysis, C5 – Synthesis, C6 – Evaluation, Affective Domain Taxonomy Levels: A1: Receive; A2: Respond; A3: Value (demonstrate); A4: Organize; A5: Characterize; Psychomotor Domain Taxonomy Levels: P1: Perception; P2: Set; P3: Guided Response; P4: Mechanism; P5: Complex Overt Response; P6: Adaptation; P7: Organization
Program Outcomes (PO): PO(a) Engineering Knowledge, PO(b) Problem Analysis, PO(c) Design/development Solution, PO(d) Investigation,
PO(e) Modern tool usage, PO(f) The Engineer and Society, PO(g) Environment and sustainability, PO(h) Ethics, PO(i) Individual work and team work,
PO(j). Communication, PO(k) Project management and finance, PO(l) Life-long Learning
* For details of program outcome (PO) statements, please see the departmental website or course curriculum
| K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | A1 | A2 | A3 | A4 | A5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 🗸 | 🗸 | 🗸 | 🗸 | 🗸 | 🗸 | 🗸 | 🗸 | 🗸 |
| Week | Lectures | Topic |
|---|---|---|
| 1 | 1-3 | Synchronous Generator: construction, armature (stator) and rotating field (exciter), excitation system with brushes and brushless excitation system. |
| 2 | 4-6 | Cooling of generator. Generated voltage equation of distributed short pitched armature winding, armature winding connections and harmonic cancellation in distributed short pitched winding. |
| 3 | 7-9 | Equivalent circuit, synchronous impedance, generated voltage and terminal voltage, phasor diagram, voltage regulation with different power factor type loads. |
| 4 | 10-12 | Determination of synchronous impedance by tests, phasor diagram, salient pole generator d-q axes parameters, equivalent circuit, generator equations. |
| 5 | 13-15 | Determination of d-q axes parameters by tests, equation of developed power and torque of synchronous machines (salient and non-salient pole motor and generator). |
| 6 | 16-18 | Parallel Operation of Generators: requirement of parallel operation, conditions, synchronizing, effect of synchronizing current, hunting and oscillation. |
| 7 | 19-21 | Synchroscope, phase sequence indicator, load distribution of alternators in parallel, droop setting, frequency control, voltage control, house diagrams. |
| 8 | 20-24 | Synchronous Motors: construction, operation, starting, effect of variation of load at normal excitation, effect of variation of excitations. |
| 9 | 25-27 | V-curves, inverted-V curves and compounding curves, power factor adjustment, synchronous capacitor and power factor correction. |
| 10 | 28-30 | DC Motors: principle of operation, constructional features, back emf and torque equations, armature reaction and its effect on motor performance, compensating winding, problems of commutation and their mitigations. |
| 11 | 31-33 | Types of dc motors and their torque speed characteristics, starting and speed control of dc motors, applications of different types of dc motor. |
| 12 | 34-36 | Single Phase Induction Motor: operation, quadrature field theory, double revolving field theory, split phasing. |
| 13 | 37-39 | Starting methods, equivalent circuit, torque-speed characteristic and performance calculation. |
| 14 | 40-42 | Renewable Energy: Introduction to photovoltaic systems. Summary review. |
Class participation will be judged by in-class evaluation; attendance will be recorded in every class.
Continuous assessment will be done in the form of quizzes, assignments, in-class evaluations.
Final Examination: A comprehensive term final examination will be held at the end of the Term following the guideline of academic Council.
Class Participation 10%
Continuous Assessment 20%
Final Examination 70%
Total 100%
Electric Machines Theory, Operation, Applications, Adjustment, and Control by Charles I. Hubert, 2002 (2nd edition)
Principles of Electric Machines and Power Electronics by P.C. Sen, 2014 (3rd edition)
Handbook of Renewable Energy Technology edited by A. F. Zobaa, World Scientific Co., 2011
Alternating Current Machines by A.F. Puchstein and T.C. Lloyd, 1942 (2nd edition)
Online resources or supplementary materials will be shared with the class on a need basis
Besides going through relevant topics of the textbook, it is strongly advised that the students follow the class Lectures and discussions regularly for a thorough understanding of the topics.