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Electrical Engineering Semester 7 Syllabus

Electrical Engineering Semester 7 Syllabus

 Power System Operation and Control Load Flow Studies: Network model formulation, Y bus formation and singular matrix transformation. Load flow problem, Gauss Seidel (GS) methods. Newton Raphson methods (NR) (Polar, Rectangular form). Decoupled, Fast Decoupled load flow and comparison. Concept of DC loads flow. Economic System Operation: Generator operating cost:- input-output, Heat rate and IFC curve, Constraints in operation, Coordinate equation, Exact coordinate equation, Bmn coefficients, transmission loss formula. Economic operation with limited fuel supply and shared generators, Economic exchange of power between the areas Optimal unit commitment and reliability considerations Automatic Generation and control: Load frequency control problem, Thermal Governing system and transfer function. Steam Turbine and Power system transfer function. Isolated power system:- static and dynamic response PI and control implementation Two area load frequency control, static and dynamic response Frequency biased Tie line Bias control-implementation and effect Implementation of AGC, AGC in restructured power system, under frequency load shedding, GRC, Dead band and its effect. Inter Change of Power and Energy: Multiple utility interchange transaction, Other types of transactions, Power Pool. Power System Stability:Types of Stability Study, Dynamics of synchronous machine, Power angle equation, Node elimination technique, Simple Systems, Steady state stability, Transient stability, Equal area criteria and its applications, Numerical solution of swing equation, Modified Euler?s method. Voltage stabilty: Introduction, reactive power transmission, short circuit capacity, Problems of reactive power transmission, rotor angle stability and voltage stability, surge impedance loading, P-V and V- Q curve, various methods of voltage control –shunt and series compensation. Voltage Control- Tap changing transformers, Booster transformers, Static voltage compensators, Thyristorised series voltage injection Assessment: Internal assessment consists of two tests out of which one should be compulsory class test (on minimum 02 modules) and the other is either a class test or assignment on live problems or course project. End Semester Examination: Some guidelines for setting the question papers are as, six questions to be set each of 20 marks, out of these any four questions to be attempted by students. Minimum 80% syllabus should be covered in question papers of end semester examination. Term work: Term Work shall consist of minimum four programs or four Simulations based on above syllabus and four tutorials covering the entire syllabus The distribution of marks for the term work shall be as follows: Laboratory work (experiments) :10 marks Assignments : 10 marks Attendance : 05 marks Text Books: 1. Kothari. D. P, Nagrath. I. J., „Modern Power System Analysis?, TMH Publication, Third Edition, 2008 2. Kothari. D. P, Nagrath. I. J., „Power System Engineering?, TMH Publication, Second Edition, 2008 3. George Kausic. „Computer Aided Power System Analysis?, Prentice Hall Publication.2008 4. Chakrabarti .A, Halder. S, „Power System Analysis- Operation and Control?, PHI, Second Edition 2008. 5. Allen. J. Wood., Bruce. F. Wollenberg., „Power Generation operation and Control?, Wiley India, Second Edition, 2007. 6. Prabha Kundur , „Power System Stability and Control? , TMH Publication,2008. High Voltage DC Transmission Electrical Engineering Semester 7 Syllabus Introduction to HVDC transmission: Early discoveries and applications, , Limitation and advantages of AC and DC transmission, Economic factors, Classification of HVDC links, Components HVDC Transmission system, Application of DC transmission , Ground Return Advantages and Problems Analysis of the Bridge rectifier: Analysis of six pulse converter with grid control but no overlap, Current and phase relations, Analysis of six pulse converter with grid control and overlap less than 600, Relation between AC and DC quantities, Analysis with overlap greater than 600, Rectifier operation and inverter operation, Equivalent circuit of rectifier and inverter, Multi bridge converter, Numerical from converter circuits and multiple bridge converter. Control: Basic means of control, Limitation of manual control, Constant current verses constant voltage control, Desired features of control, Actual control characteristics, Significance of current margin, Power reversal, Alternative Inverter Control Mode. Converter Firing Control: Control Implementation, Converter Firing Control Schemes. Faults and protection: Malfunction of mercury arc valves, By pass valves:- transfer of current from main valves to bypass valves and back to main valves (both rectifier and inverter), Commutation failure: causes and analysis, double commutation failure, Protection against over current, over voltage, Surge arrester. Harmonics & Filters: Characteristics Harmonics and Un-Characteristics Harmonics, Causes, Consequences, Trouble Caused by Harmonics, Means of Reducing Harmonics, Filters, AC & DC Filters. Assessment: Internal Assessment consists of two tests out of which; one should be compulsory class test (on minimum 02 Modules) and the other is either a class test or assignment on live problems or course project. End Semester Examination: Some guidelines for setting the question papers are as, six questions to be set each of 20 marks, out of these any four questions to be attempted by students. Minimum 80% syllabus should be covered in question papers of end semester examination. Term work: Term Work shall consist of minimum two programs or two Simulations based on above syllabus and six tutorials covering the entire syllabus The distribution of marks for the term work shall be as follows: Simulation/programs and tutorial : 10 marks Assignments : 10 marks Attendance : 05 marks Text Books: 1. Edward Wilson Kimbark “Direct Current Transmission” Wiley publication Inter science 2. K R Padiyar “HVDC power transmission systems” second edition, New Age International (p)Ltd 3. S. Kamkshaiah and V Kamraju “HVDC transmission” Tata McGraw Hill Education Pvt. Ltd, New Delhi