Title: WIND DIESEL HYBRID POWER SYSTEM
1WIND DIESEL HYBRID POWER SYSTEM
VIGNANS LARA INSTITUTE OF TECHNOLOGY AND SCIENCE
- Aditya Pavan Kumar.T (08FE1A0202)
2CONTENTS
- Abstract
- Objective
- Introduction
- Penetration
- AC Based Hybrid System
- Benefits
- Technical Difficulties
- Conclusion
- References
3Abstract
- A wind-diesel hybrid system combines wind
turbine(s)with diesel generator(s) to obtain a
maximum contribution by the intermittent wind
resource while providing continuous high quality
electric power.
4Objective
-
- Reduce system fossil fuel consumption
- The more energy you use from your
non-renewable utility provider, the more these
non-renewable resources are wasted and the more
harm is done to the environment.
5Introduction
- Wind power is expected to be economically
attractive, but wind power generation is variable
and unpredictable. The hybrid wind power with
diesel generation has been suggested (Hunter,
1994) and (Lipmann, 1989) to handle the problem
above. A hybrid wind diesel system is very
reliable because the diesel acts as a cushion to
take care of variation in wind speed and would
always maintain an average power equal to the set
point.
6BLOCK DIAGRAM
7Penetration
- Instantaneous Penetration
-
- Instantaneous Penetration Wind
Power Output (kW) -
. -
Primary Electrical Load (kW) - Average Penetration
-
- Average Penetration Wind
Energy Produced (kWh) -
. -
Primary Energy Demand (kWh) -
8AC Based Hybrid System
- Low penetration systems -Wind acts as a negative
load, very little control or integration of wind
turbines into the power system is needed. - Medium penetration systems -Wind becomes a major
part of the power system but diesel engines still
provide much of the system power control.
Additional components and limited supervisory
control required to assist diesels in maintaining
power quality. - High penetration systems -Completely integrated
power system with advanced control. Diesel
generators shut off when not needed. Limited
operational control of system by plant staff.
9AC Based Hybrid System
10Low Penetration System
Generally easy integration with existing diesel
system, little or no diesel modifications
required. Diesel engines provide all frequency,
voltage and reactive power control
requirements. Switch gear would need to be
modified to add turbines and turbine control
software installed. Modest fuel savings of up to
20 possible
11(No Transcript)
12Medium Penetration System
- Diesel(s) are expected to operate at all times
and provide main system stability control. - Will need devices to help control system
frequency, eliminate excess energy and provide
VAR support. - Secondary diesels may be shut off when not
needed, reduces diesel operating hours and fuel
use. - In high peak wind periods, primary diesel runs
at low loading.
13Medium Penetration System
14High Penetration System
- Use of wind allows all diesel engines to shut
down during mid to high wind periods, reducing
fuel consumption and operation hours - Other hardware used to maintain system voltage,
frequency, and reactive power requirements - System controller continually monitors power
system and dispatched equipment as needed to
maintain system integrity
15High Penetration System (without Storage)
16High Penetration System (With Storage)
17Benefits
Reduced system operating costs. Reduced
environmental impacts. Reduced fuel consumption
. Can be the most economic option where fuel is
expensive and the renewable energy source is
good. Increased Reliability
18Technical difficulties
- High cost
- Power in rural areas is always expensive, but
many elements drive up the cost of wind in rural
areas. - New Technology
- Wind-diesel technologies are relatively new,
implementation in rural areas can be
operationally challenging.
19Conclusions
- Given good wind resource and adequate project
density ,high penetration wind-diesel systems can
provide least life cycle cost of electricity in
remote communities. - Isolated communities, mining sites and other
industrial outposts need to replace their
expensive, polluting diesel generators with
hybrid power systems that use wind.
20References
- Ackermann, T. (2005), Wind Power in Power
Systems, John Wiley Sons. Hunter R.E.G. (1994),
Wind-diesel systems a guide to technology and its
implementation, Cambridge University Press.
Lipman NH. (1989), Wind-diesel and autonomous
energy systems, Elservier Science Publishers
Ltd. - Bhatti T.S., Al-Ademi A.A.F. Bansal N.K.
(1997), Load frequency control of isolated wind
diesel hybrid power systems, International
Journal of Energy Conversion and Management, Vol.
39, pp. 829-837. - http//www.iser.uaa.alaska.edu/Publications/wind_d
iesel10022010.pdf - http//en.wikipedia.org/wiki/Wind_hybrid_power_sys
tems - http//energy-alaska.wikidot.com/wind-diesel-appli
cations
21 Thank You