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WIND DIESEL HYBRID POWER SYSTEM

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VIGNAN S LARA INSTITUTE OF TECHNOLOGY AND SCIENCE Aditya Pavan Kumar.T (08FE1A0202) * CONTENTS Abstract Objective Introduction Penetration AC Based Hybrid System ... – PowerPoint PPT presentation

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Title: WIND DIESEL HYBRID POWER SYSTEM


1
WIND DIESEL HYBRID POWER SYSTEM
VIGNANS LARA INSTITUTE OF TECHNOLOGY AND SCIENCE
  • Aditya Pavan Kumar.T (08FE1A0202)

2
CONTENTS
  • Abstract
  • Objective
  • Introduction
  • Penetration
  • AC Based Hybrid System
  • Benefits
  • Technical Difficulties
  • Conclusion
  • References

3
Abstract
  • 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.

4
Objective
  • 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.

5
Introduction
  • 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.

6
BLOCK DIAGRAM
7
Penetration
  • Instantaneous Penetration

  • Instantaneous Penetration Wind
    Power Output (kW)

  • .

  • Primary Electrical Load (kW)
  • Average Penetration
  •  
  • Average Penetration Wind
    Energy Produced (kWh)

  • .

  • Primary Energy Demand (kWh)
  •  

8
AC 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.

9
AC Based Hybrid System
10
Low 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
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12
Medium 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.

13
Medium Penetration System
14
High 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

15
High Penetration System (without Storage)
16
High Penetration System (With Storage)

17
Benefits
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
18
Technical 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.

19
Conclusions
  • 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.

20
References
  • 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
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