hybrid power system ppt by dharmendra
TRANSCRIPT
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A SEMINAR ON HYBRID POWER SYSTEM
PRESENTED BY: DHARMENDER KUMAR SINGH
ROLL NO. 0809721036
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WHAT IS HYBRID POWER PLANTThe hybrid power plant is a complete electrical power supply system that can be easily configured to meet a broad range of remote power needs. There are three basic elements to the system - the power source, the battery, and the power management center. The power sources are a wind turbine, diesel engine generator, and solar arrays. The battery allows autonomous operation by compensating for the difference between power production and use. The power management center regulates power production from each of the sources, controls power use by classifying loads, and protects the battery from service extremes.
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Hybrid Systems
Hybrid power systems combine two or more energy conversion devices, or two or more fuels for the same device, that when integrated, overcome limitations inherent in either.Hybrid systems can address limitations in terms of Fuel flexibility, efficiency, reliability, emissions and / or economics.
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Hybrid Power Systems Objectives
Define the thrust of a new program– Compile a set of activities that may tap into existing technologyprograms to “fill in the gaps”– Coordinate but not overlap with technology programs– Stimulate innovative thinking that leads to creative businessopportunities• Define how a hybrid power program will accelerateintroduction of all DER technologies that includerenewables• Make determination on the need for an integrateddistributed hybrid power program
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TYPES OF NEW ELECTRICAL POWER SOURCESCONTROLLED SOURCES
UNCONTROLLED SOURCES
Primary energy sources giving rise to the possibility of controlling electrical power production
Eg. coal
Natural sources giving unpredictable power and independent of human action
Eg. Solar ,wind
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WHY HYBRID POWER PLANT
Electricity should be produced exactly at the time it is needed.Sun and wind do not meet this requirement. so special types ofPower plant should be built to avoid shortage of power and to utilise all available sun and wind power. There are atleast two ways to achieve this aim: 1. power plant using two (or more) primary sources with additional control system.2. Electricity energy storage. For hybrid power plant one of the sources must be controlled source.
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EXAMPLE OF HYBRID SYSTEMSOLAR – WIND HYBRID POWER PLANTA SOLID OXIDE FUEL CELL COMBINE
WITH A GAS TURBINE OR MICRO TURBINEA WIND - FUEL CELL HYBRID SYSTEM WIND TURBINE WITH BATTERY STORAGE
AND DIESEL BACKUP GENERATORDC HYBRID SYSTEM AND MICROGRID
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PROBLEMS 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.
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Value proposition
RenewablesFossil FuelGenerators
Storage Power Electronics
Hybrid System Value Propositions:High EfficiencyHigh ReliabilityLow EmissionsAcceptable Cost
The whole is greater thanthe sum of its parts.
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SOLAR WIND HYBRID POWER SYSTEM
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Energy Flow for All-Renewable Hybrid
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HYBRID SOLAR – FUEL CELL POWER PLANT
The block diagram of hybrid solar and fuel cell power plant
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HYBRID SOLAR – FUEL CELL POWER PRODUCTION
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Wind/Diesel Power• High penetration – 130kW wind added to existing 365kW diesel• Benefits of hybrid system:– Reduced fuel consumption 50-60%, requiring less diesel storage- Diesel generator provides continuous power in absence of wind
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CSP Trough/Natural Gas– Concentrating Solar Power trough plants tied to grid.– Total generating capacity:354 MW– Up to 25% natural gas fired
Benefit-maximizing renewable resource usage– Eliminated risk of diesel spills– Reduced annual fuel usage
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Wind diesel power system
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Energy flow for wind diesel hybrid system
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DC 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. Soloads are mainly households or small business.
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DC MICROGRID
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DC MICRO GRID ALLOWS1. Avoidance of many difficulties associated
with control of energy parameters.2. Simplification of control strategy and
control units3. Cost reduction.4. Reduction in transmission losses5. Introduction of load active control methods.6. New method of energy measurement.
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Key Points of Large Hybrid Systems
•Differences in Energy Storage–Long term energy storage:Larger battery bank to transfer energy from one time to another. Order of hours.–Short term energy storage: Energy used for very short periods to provide grid stability and allow controlled diesel engine starting. Order of minutes.•Power Quality issues•System Control–DSP based advanced control is required
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Advantages Reliable, continuous power maximizing renewable usage
Reduced fuel consumption 50-60%, requiring less diesel storage
Reduced operating costs
Less electricity
No Power Outages- The next time a hurricane goes through you will not have to worry about losing power for a week in the summer. Provided that your system was not damaged.
Pollutants-No pollutants are being released into the air. Cells only become a problem when it comes time to replace them (about twenty years)
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Conclusions 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.
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QUERIES