Hybrid Power System is the integration of number of generating plants those are working together serve a particular region. They may be off grid or may not be.

2. Contents
Energy Scenario
Drawbacks of current power system
Power Failure
Non-Conventional Energy Sources
Hybrid Power System
Block Structure
Co-ordination among various power sources in Hybrid
Power System
Main technological configuration for Hybrid Power System
Advantages and applications

3. Energy Scenario
Electricity Consumption(KWh per head per year)
India(600)
2%
USA(13000)
44%
Japan(7000)
23%
5%
China(1380)
26%
South Coria(7800)
Average conssumption of electricy worlwide: 2430

4. Energy Scenario
Energy Profile of India
Nuclear
Hydro
Natural gas
2% 2%
9%
Coal
51%
36%
Oil

5. Drawbacks of current power system
Present in lesser amount then requirement.
Excess Load on power plants and grid
Power Quality
Voltage supplied at mass level
Power grid failure

6. Power failure(Cascading Failure)
Main Reasons:
Disturbance in Generation
Frequency.
Overload drawn at
consumer side.

7. Non-Conventional Energy Sources

8. Hybrid Power System
Combination of more than one conventional and non
conventional power generating plants.
Capable to produce power up to 5 MW
Use of Photovoltaic cells and wind turbines.
Storage of energy.
Batteries, Hydrogen Fuel cell.

9. Block Structure of Hybrid Power
System

10. Co-ordination among different
Energy Sources
Accepts the DC power from the three generating
units according to priority rules
Controls the power delivery to the load or loads
Monitors the battery voltage and charges the battery
as required.
Cuts off the charger when the battery is fully charged
and diverts the power to a suitable load

11. Main Technological Configuration for
Hybrid Power System
Electricity Generation Coupled at
DC Bus Line
AC Bus Line
AC/DC Bus line

12. Electricity Generation Coupled at
DC Bus Line

13. Electricity Generation Coupled at
AC Bus Line

14. Electricity Generation Coupled at
AC/DC Bus Line

15. Advantages
Average power factor
Power factor of various power plants
Hydro .9
thermal .8

16. Advantages
The systems are complementary. During the summer months when there's not
much wind there should be ample sunlight and during the dark winter months it
is usually quite windy.
Two different energy sources provide a diversity of supply, reducing the risk of
power outages.
High cost ancillary equipment such as the battery and the inverter required for a
single system must be specified to carry the full system load. A second system
can thus be added without increasing its capacity or adding cost for more of
these components.
Because of the supply diversity, the capacity of the battery can most likely be
reduced.

17. Applications
Lighting
Water Supply
Communication
Supporting Equipment's such as monitoring and
security system.