This course focuses on transmission technology of electric power, on which modern society heavily depends. Topics include equivalent circuit for a power system component, per-unit system, power circular diagram, fault analysis, and angle stability of a power system.
At the end of this course, students will be able to:
1) Understand how electric power is delivered through a power system;
2) Construct an equivalent circuit of a power system;
3) Understand transmission characteristics of a power system under normal and fault conditions
power system, three-phase circuit, active and reactive power, transmission line, power transformer, synchronous generator, equivalent circuit of a power system component, per-unit system, voltage control, fault analysis, symmetrical components, angle stability, protection relay, power distribution
Intercultural skills | Communication skills | Specialist skills | ✔ Critical thinking skills | Practical and/or problem-solving skills |
✔ ・Applied specialist skills on EEE |
1) Lectures are given based on the materials distributed through OCW-i. Students are required to make preparation and review with the materials.
2) Students must submit a report on exercise problems assigned in each class.
3) Solutions to the problems assigned in the previous class are explained at the beginning of each class.
Course schedule | Required learning | |
---|---|---|
Class 1 | Outline of a power system: system configuration and apparatus | Explanation of the roles of a power stations and substation |
Class 2 | Three-phase circuit and complex power | Construction of a single-phase equivalent circuit for a sample three-phase circuit |
Class 3 | Per-unit system | Construction of an impedance map in per-unit for a sample power system |
Class 4 | Modeling of a synchronous generator for power system analysis | Calculation of a short-circuit current for a salient-pole synchronous generator |
Class 5 | Electric power transmission systems | Configurations, devices, and basic characteristics of transmission systems |
Class 6 | Electric power distribution systems | Configurations, devices, and basic characteristics of distribution systems |
Class 7 | Summary of the first half | review and exercise of the first half |
Class 8 | Grounding and unbalance | Types and functions of grounding and voltage/current unbalance in power system |
Class 9 | Symmetrical components | Derivation of a formula for a fault current in case of three-phase short circuit, etc. |
Class 10 | Fault analysis of a power system | Calculation of e fault current of a sample power system during a phase-to-ground fault, etc. |
Class 11 | Structure of transmission and distribution systems | Explanation of the structure of transmission and distribution networks |
Class 12 | Transmission of electric power and power circle diagram | Calculation of the reactive power required to keep the voltage at a receiving end to a specified value |
Class 13 | Reactive power and voltage control | Explanation of the supply-and-demand balance of reactive power in a transmission line (overhead line and cable) |
Class 14 | Angle stability | Construction of a power-angle curve for a sample power system |
Okubo, Hitosh, et al., "Electric Power System Engineering," Ohm-sha.
1) All the materials used in a class can be found on OCW-i.
2) Textbook: Ohkubo, Hitoshi: "Power System Engineering," Ohm-Sha
3) Reference books
Hayashi, Izumi: "Power System," Shokoudoh;
Yasuoka, Kouichi: "Electric Power Engineering," Ohm-sha;
Michigami, Tsutomu, "Power Transmission and Distribution," IEEJ.
Students' course scores are based on reports in the first half (50%) and the later half (50%).
Students are required to have basic knowledge on electric circuit and electric machinery.