Power Generation

EE-415: Power Generation, Transmission and Distribution, Spring 2014

Introduction by Muhammad Arif
Department of Electrical Engineering
PIEAS

Structure of Power System y Major subsystems of a power
System:
•Generation
•Transmission
•Sub-transmission
•Distribution
•Utilization

Structure of Power System y Structure of Power System
Interconnected Systems
Advantages
Ad
Stability: Greater reserve power, hence better able to withstand a large disturbance
Continuity of Service: y Uninterrupted supply during breakdown or maintenance of a generating station or transmission i i i i line. Economy: Overall operating cost is minimized.

Interconnected Systems and History of Blackouts

Source: IEEE Spectrum, February 2005
Spectrum

Worst Blackouts in Pakistan
1.

February 2013

2.

September 2006

Historical Development p Historical Development p Growth of Generator Sizes in United States

Source: Power System Analysis and Design by J D Glover

Historical Development p Maximum AC and DC Rated Voltage

Historical Development p Single-phase ac power stations erected in Germany between 1891 and 1901 with operating frequencies shown in percentages
Source: IEEE Power and Energy Magzine, July/August 2011

Historical Development p Cost of U.S. electricity adjusted for inflation to year 2000 U.S. dollars. (Data from
U.S. city average electricity costs from the U.S. Bureau of Labor Statistics.)

Global Energy (2011) : Where Does it Come From? gy (
)

**Other includes geothermal, solar, wind, heat, etc.
Source: World Energy Statistics, 2013, IEA./

CO2 Emissions Per Capita, 2004 p ,

Fuel Share of Electricity Generation ( y (2011)
)

**Other includes geothermal, solar, wind, biofuels and waste, and heat.
Source: 2013 Key World Energy Statistics by IEA

Regional Share of Electricity Generation (2011) g y
(
)

**Asia excludes China.
Source: 2013 Key World