El Eng 307 Power Systems Engineering

COURSE DESCRIPTION

El Eng 307 – Power Systems Engineering (Offered Fall semesters)

Required or Elective Course: Elective

Catalog Description [Lect 3.0] Network analysis applied to power systems; the load flow concept; economic operation of power systems; synchronous machine reactances and transient stability; symmetrical components and asymmetrical faults; protective relaying. Prerequisite: El Eng 207 Power Systems.

Prerequisites by topic: Basics of 3-phase power systems, synchronous generators, transformers, and transmission lines; per-unit system.

Textbooks and other required material: J.J. Grainger and W.D. Stevenson, Power System Analysis, (McGraw-Hill, Inc. New York). Instructor notes and lecture slides available through course website.

Course objectives: 1. Be able to find the network admittance/impedance matrices by the building block approach and be able to modify the admittance/impedance matrices for addition/deletion of a line assuming mutually-decoupling or mutually-coupling with other lines. 2. Be able to find the power flow for an N-bus power system using the Newton- Raphson method and be able to find the fault current in three-phase balanced and unbalanced short circuits. 3. Understand the basics of interconnected operations of control areas in a deregulated environment. 4. Understand governor droop control. 5. Be able to determine stability with the Equal Area Criterion for a single-machine infinite bus (SMIB) system and be able to find the power angle swings after a disturbance in a SMIB system.

Topics covered: 1. Review of basic concepts - 3- circuits, complex power, power triangle, per units, single-line diagrams, impedance and reactance diagrams, phasor diagrams; 3- transformer equivalent circuits; Synchronous machines: 3-phase power generation, equivalent circuit, real and reactive power control, capability diagram; 3- transmission line modeling: short, medium and long line representation, power flow through a transmission line, reactive compensation of transmission lines. (2 weeks) 2. The admittance model; building block approach, adm. matrix modifications. (1.5 weeks) 3. The impedance model; building block approach, adm. matrix modifications. (1.5 weeks) 4. Power flow solutions; Newton-Raphson algorithm. (2 weeks) 5. Symmetrical faults. (1 week) 6. Symmetrical components and sequence networks. (1.5 weeks) 7. Unsymmetrical faults.(1.5 weeks) 8. Interconnection issues; automatic generation control. (2 weeks) 9. Power system stability. (2 weeks) 10. Exams (Total 1 week)

Class/laboratory schedule:

Three 50-minute or two 75-minute lectures/week. Students will have to use computer methods, preferably using MATLAB, for power flow studies. Therefore students are expected to spend some unsupervised time in the computer lab.

Contribution of course to meeting the professional component:

 Students are introduced to power industry practices for operation and planning.  Students use a commercial software package (MATLAB) in solving homework problems.  Students learn to use mathematical tools that are essential for system analysis and design.  Students are encouraged to work in groups. However, all submitted work is required to reflect individual effort.

Relationship of course learning outcomes to ECE program outcomes:

ECE Course Outcomes Outcome 1 2 3 4 5 Comments a M M M S M . b M M M M M c M M M M M d Applications are linked to fundamental e S S S S S knowledge f g h Analysis techniques provides tools for lifelong i W W W W W learning. j k M M M M M l

S – strong connection; M – medium connection; W – weak connection

Prepared by: Steve E. Watkins Date: February 1, 2008