introduction to power system dr. jing wang head of institute of power electronic and electric drive...
TRANSCRIPT
![Page 1: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/1.jpg)
Introduction to Power System
Dr. Jing Wang
Head of Institute of Power Electronic and Electric
Drive
![Page 2: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/2.jpg)
II What is power system? II What is power system?
I Where does electricity come from?I Where does electricity come from?
III Do voltage and frequency matter?
III Do voltage and frequency matter?
I Where does electricity come from?
![Page 3: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/3.jpg)
1791 -1867
Michael Faraday
3
![Page 4: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/4.jpg)
magnet
Coil
electric current
4
![Page 5: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/5.jpg)
magnet
coil
electric current
Electric current is induced whether a magnet moves near coil or the coil moves in a magnet (relative movement ).
5
![Page 6: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/6.jpg)
6
![Page 7: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/7.jpg)
How can we keep the coil
rotating like that?
How can we keep the coil
rotating like that?
7
![Page 8: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/8.jpg)
Types of Power Plants
Thermal
Nuclear
Hydroelectric
Wind
Solar-PV
Biomass
Geothermal
……
Conventional SourcesConventional Sources
Non Conventional SourcesNon Conventional Sources
![Page 9: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/9.jpg)
Thermal Power Plant
99
![Page 10: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/10.jpg)
Turbines
10
![Page 11: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/11.jpg)
Steam turbine generator set
RotorStator
11
![Page 12: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/12.jpg)
1212
![Page 13: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/13.jpg)
Types of Power Plants
Thermal
Nuclear
Hydroelectric
Wind
Solar-PV
Biomass
Geothermal
……
![Page 14: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/14.jpg)
Nuclear Power Plant
14
![Page 15: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/15.jpg)
15
![Page 16: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/16.jpg)
Types of Power Plants
Thermal
Nuclear
Hydroelectric
Wind
Solar-PV
Biomass
Geothermal
……
![Page 17: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/17.jpg)
Hydroelectric Power Plant
17
![Page 18: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/18.jpg)
Hydroturbine rotor
RotorStator
18
![Page 19: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/19.jpg)
Hoover
Itaipu
Dams
19
![Page 20: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/20.jpg)
1. On electricity, power systems and smart grids
Grid 101 - The Power Grid Explained : https://www.youtube.com/watch?v=5wF03-bqyJo
Where energy comes from : https://www.youtube.com/watch?v=__zB80Saglk
Energy 101: Electricity Generation : https://www.youtube.com/watch?v=20Vb6hlLQSg
What Is the Smart Grid? : https://www.youtube.com/watch?v=JwRTpWZReJk
2. On Generators
Nuclear Power: How Nuclear Power Plants Work : https://www.youtube.com/watch?v=_UwexvaCMWA
Thermal power plant : https://www.youtube.com/watch?v=rEJKiUYjW1E
Hydro Power : https://www.youtube.com/watch?v=rnPEtwQtmGQ
https://www.youtube.com/watch?v=tpigNNTQix8&list=PLACD8E92715335CB2&index=8
Pumped Storage hydropower plant : https://www.youtube.com/watch?v=Tt_NtTOJEE8
Wind Power: How Wind Turbines Generate Electricity : https://www.youtube.com/watch?v=mrnul6ixX90
Wind Turbines : https://www.youtube.com/watch?v=EYYHfMCw-FI&index=3&list=PLACD8E92715335CB2
Solar Power: https://www.youtube.com/watch?v=0elhIcPVtKE
https://www.youtube.com/watch?v=0elhIcPVtKE&list=PLACD8E92715335CB2&index=16
1. On electricity, power systems and smart grids
Grid 101 - The Power Grid Explained : https://www.youtube.com/watch?v=5wF03-bqyJo
Where energy comes from : https://www.youtube.com/watch?v=__zB80Saglk
Energy 101: Electricity Generation : https://www.youtube.com/watch?v=20Vb6hlLQSg
What Is the Smart Grid? : https://www.youtube.com/watch?v=JwRTpWZReJk
2. On Generators
Nuclear Power: How Nuclear Power Plants Work : https://www.youtube.com/watch?v=_UwexvaCMWA
Thermal power plant : https://www.youtube.com/watch?v=rEJKiUYjW1E
Hydro Power : https://www.youtube.com/watch?v=rnPEtwQtmGQ
https://www.youtube.com/watch?v=tpigNNTQix8&list=PLACD8E92715335CB2&index=8
Pumped Storage hydropower plant : https://www.youtube.com/watch?v=Tt_NtTOJEE8
Wind Power: How Wind Turbines Generate Electricity : https://www.youtube.com/watch?v=mrnul6ixX90
Wind Turbines : https://www.youtube.com/watch?v=EYYHfMCw-FI&index=3&list=PLACD8E92715335CB2
Solar Power: https://www.youtube.com/watch?v=0elhIcPVtKE
https://www.youtube.com/watch?v=0elhIcPVtKE&list=PLACD8E92715335CB2&index=16
Online Materials
20
![Page 21: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/21.jpg)
II What is power system? II What is power system?
I Where does electricity come from?I Where does electricity come from?
III Do voltage and frequency matter?
III Do voltage and frequency matter?
II What is power system?
![Page 22: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/22.jpg)
22
![Page 23: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/23.jpg)
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
Hydroturbine
Power Plants
Generator
Steam Turbine
23
![Page 24: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/24.jpg)
24
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
Hydroturbine
Power Plants
Generator
Steam TurbineStep-up Transformer
![Page 25: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/25.jpg)
Transformers
PURPOSE: to change the voltage• increase = “step-up”
• decrease = “step-down”
Often run hot, must be cooled, prone to explode.• oil inside
• cooling fins and fans
• blast walls
Why need to change Voltages?
Why is that so?
Why need to change Voltages?
Why is that so?
25
![Page 26: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/26.jpg)
Electrical Substation
2626
![Page 27: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/27.jpg)
27
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
Hydroturbine
Power Plants
Generator
Steam TurbineStep-up Transformer
Buses
![Page 28: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/28.jpg)
Buses uninsulated electrical conductors large cross-section = low resistance must be far from ground and other components to
avoid arcing
28
![Page 29: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/29.jpg)
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
Hydroturbine
Power Plants
Generator
Steam TurbineStep-up Transformer
Buses
Transmission lines
29
![Page 30: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/30.jpg)
30
![Page 31: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/31.jpg)
31
![Page 32: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/32.jpg)
32
![Page 33: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/33.jpg)
33
![Page 34: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/34.jpg)
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
Hydroturbine
Power Plants
Generator
Steam TurbineStep-up Transformer
Buses
Transmission lines
Step-down Transformer
34
Distribution lines
![Page 35: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/35.jpg)
35
Step-down transformer
35
![Page 36: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/36.jpg)
To your house...
36
![Page 37: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/37.jpg)
37
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
Hydroturbine
Power Plants
Generator
Steam TurbineStep-up Transformer
Buses
Transmission lines
Step-down Transformer
Consumers
![Page 38: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/38.jpg)
38
![Page 39: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/39.jpg)
a network of electrical components used to generate, transmit,
distribute and consume electric power
generate transmit
distribute consume
Electrical power system
39
![Page 40: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/40.jpg)
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
Electrical power system
40
![Page 41: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/41.jpg)
Power Grid
an interconnected network for transmitting and distributing
electricity from suppliers to consumers
transmission distribution
41
![Page 42: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/42.jpg)
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
Power Grid = Electrical power system – generators - consumers
Transmission System
Distribution System
42
![Page 43: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/43.jpg)
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
43
![Page 44: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/44.jpg)
44
![Page 45: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/45.jpg)
G~
G~
G~
G~
G~
G~
G~
G~
M~
M~
M~
| |
Damboiler
Heat supple network
boiler
boiler
boiler
220kV
110kV
10kV0.38kV
10.5kV
50Hz60Hz
45
![Page 46: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/46.jpg)
II What is power system? II What is power system?
I Where does electricity come from?I Where does electricity come from?
III Do voltage and frequency matter?
III Do voltage and frequency matter?
III Do voltage and frequency matter?
![Page 47: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/47.jpg)
1. What is the history of voltages and frequencies?
2. What are voltage levels? Why are they choosed as standards?
3. What kinds of frequencies are chosen as base frequency? Why is that so ?
4. Why are High Voltages Used to transmit power energy? Why is that so?
5. What conditions do we need to use AC or DC systems ?
1. What is the history of voltages and frequencies?
2. What are voltage levels? Why are they choosed as standards?
3. What kinds of frequencies are chosen as base frequency? Why is that so ?
4. Why are High Voltages Used to transmit power energy? Why is that so?
5. What conditions do we need to use AC or DC systems ?
Questions
47
![Page 48: Introduction to Power System Dr. Jing Wang Head of Institute of Power Electronic and Electric Drive kmhelen@sina.com.cn](https://reader037.vdocument.in/reader037/viewer/2022102908/56649e235503460f94b1111f/html5/thumbnails/48.jpg)
48