This document discusses hybrid power systems which combine two or more sources of electricity generation, usually renewable sources like solar and wind, to provide reliable power. The objectives of hybrid systems are reducing use of non-renewable sources, improving reliability, minimizing costs, and better utilizing renewables. Examples discussed include solar-wind, wind-diesel, and microgrids which integrate distributed generation and storage. Hybrid systems provide continuous power and reduce fuel needs but require more complex control systems.

1. GLOBAL INSTITUTE OF TECHNOLOGY, JAIPUR
Department of Electrical Engineering
A Seminar Presentation on Hybridization of Electrical Power System
And Economical Hybrid Power System
Submitted To: Submitted By:
DR. A.K. PATHAK VINOD KUMAR YADAV
Roll No.: 15EGJEE132

2. CONTENTS
o Introduction
o Hybrid power system
o Objective of hybrid power system
o Solar wind power system
o Dc microgrid
o Advantages of hybrid power system
o Disadvantages of hybrid power system
o Application of hybrid power system

3. INTRODUCTION
With the increase in the rate of various developmental activities
around the world the energy being consumed is also increasing with the
result that conventional energy resources are fast getting depleted and
even hydel reserves are proving less than sufficient to satisfy the
growing energy demand.
As a result consumers around the world have to bear the brunt of
increasing power cuts and power costs, Hence to overcome from this
situation hybridization of power system is important.

4. HYBRID POWER SYSTEM
 Hybrid systems, as the name implies, combine two or more modes
of electricity generation together, usually using renewable
technologies such as solar photovoltaic (PV) and wind turbines. it
provide a high level of energy security through the mix of
generation methods.

5. OBJECTIVES OF HYBRID SYSTEM
 Reduction in consumption of non- renewable sources.
 Improve reliability of power system.
 Protection from transient collapse by distributed generation.
 Minimize overall generating cost per unit.
 Better utilization of renewable sources.
 To secure power system from failure.

6. SCHEMATIC DIAGRAM OF A HYBRID
POWER SYSTEM
SOLAR-WIND-FOSSIL HYBRID POWER SYSTEM

7. EXAMPLE OF HYBRID POWER
SYSTEM
 Wind turbines with bettery storage - diesel backup generator
 Thermal-hydro Hybrid Power System
 A Gas - Fuel Cell Hybrid System
 Thermal-solar-wind Hybrid System
 Diesel-solar-wind Hybrid System

8. SOURCES IN HYBRID POWER SYSTEM
CONTROLLED POWER SOURCES-
 Primary energy sources giving rise to the possibility of controlling electrical power
production
 Eg. Coal
UNCONTROLLED POWER SOURCES-
 Natural sources giving unpredictable power and independent of human action
 Eg. Solar ,wind

9. PROBLEM CAUSED BY
UNCONTROLLED POWER SOURCES
 The rapid and unpredictable changes in electricity production
 The sudden disappearences of power generation
 The poor usages of primary energy carriers.

10. SOLAR WIND HYBRID POWER
SYSTEM

11. WIND/PV HYBRID SYSTEM
 A typical hybrid energy system consists of solar and wind energy sources.
 The principle of an open loop hybrid system of this type is shown in
Figure above.
 The power produced by the wind generators is an AC voltage but have
variable amplitude and frequency that can then be transformed into DC to
charge the battery.
 The controller protects the battery from overcharging or deep discharging.

12. HYBRID SOLAR-HYDRO POWER
SYSTEM

13. PV/HYDRO HYBRID SYSTEM
 The block diagram of hybrid system, which combines PV with
hydro system, is shown above.
 In this system there is a small reservoir to store the water.
 This type of hybrid system sometimes depends upon the
geographical condition where the water at some height is available.
 System capacity is depends upon at the water quantity and solar
radiation.

14. HYBRID SYSTEM WITH MICROGRID
A Microgrid is a small power system containing all subsystems present
in a regular power generation system:
- power plants,
- storage system,
- transmission (distribution) network,
- control system,
-loads.
The microgrid is designed to supply small town or village. So loads are
mainly households or small business.

15. DC MICROGRID
To effectively manage this dynamic energy landscape, power system
operators create local distributed energy systems in the form of
microgrids. These systems bring together a diverse mix of generation
sources—as well as storage, energy monitoring, and control solutions—to
establish a localized microgrid that can operate in connection with the grid

16. BENIFITS OF MICROGRID HYBRID
SYSTEM
1. Avoidance of many difficulties associated with control of energy
parameters.
2. Simplification of control strategy and control units
3. Cost reduction.
4. Reduction in transmission losses
5. Introduction of load active control methods.
6. New method of energy measurement.

17. ECONOMIC HYBRID POWER SYSTEM
 Economic hybrid power system is the system in which the output
power generated by the sources to supply the specified load in a
manner that will minimize the total cost of fuel.
 The purpose of economic hybrid power system is to deliver the
optimal power to the load through various sources efficiently.

18. ECONOMIC DISPATCH IN HYBRID
SYSTEM
 The optimum economy is achieved if every generating unit operates at the same
incremental cost.
The economic scheduling of the generators aims to guarantee at all time the
optimum combination of the generator connected to the system to supply the load
demand.

19. ADVANTAGES OF HYBRID POWER
SYSTEM
 Reliable , continuous power maximizing renewable usage.
 Reduced fuel consumption and storage of fuel.
 Reduced operating costs.
 Power outages is minimized due to various sources.
 Less consumption of non- renewable sources.
 Higher fuel efficiency.

20. DISADVANTAGES OF HYBRID POWER
SYSTEM
 Control more complicated.
 Large initial project.
 Independent systems require more maintenance.
 Appropriate links required to connect various sources.

21. APPLICATIONS OF HYBRID POWER
SYSTEM
 Green power.
 Commercial power parks.
 Industrial power quality.
 Remote(off-grid)power.
 Distribution support.
 Power price stabilization.

22. CONCLUSION
 Hybrid power systems can offer solutions and value to customers that
individual technologies cannot match.
 HPS are a good way to have available sources of electricity which
optimise utilisation of primary energy sources.
 Hybrids offer market entry strategies for technologies that cannot currently
compete with the lowest-cost traditional options.
Some renewable hybrid power systems are commercially available today.
 Many options for the configuration of hybrid systems -Depend on load,
resource, and costs.

24. QUERIES