development of pv system sizing tool with economic analysis · charge controller model validation...
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Development of PV System Sizing Tool with Economic Analysis
Shruti Sriram
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Introduction
What would bethe most accurate system sizingmethodology forTSS?
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• Remote locations
• High operating temperatures
Constraints
• Inaccurate irradiance data
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Objective
• Development of system sizing tool.
• Economic analysis of Hybrid PV-Diesel systems.
• Choice of charge control technique- PWM or MPPT?
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Objective
• Development of system sizing tool.
• Economic analysis of Hybrid PV-Diesel systems .
• Choice of charge control technique- PWM or MPPT?
![Page 6: Development of PV System Sizing Tool with Economic Analysis · Charge Controller Model Validation Economic Analysis Battery Sizing Location Issue ... • Choice of charge control](https://reader030.vdocuments.site/reader030/viewer/2022040823/5e6e0f62b8ac1275405a7006/html5/thumbnails/6.jpg)
System Sizing Tool
PV EnergyYield
ThermalModel
Energy Yield
Charge ControllerModel
Validation
EconomicAnalysis Battery Sizing
Location Issue
Sun PositionCalculation
Meteo Data
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Objective
• Development of system sizing tool.
• Economic analysis of Hybrid PV-Diesel systems.
• Choice of charge control technique- PWM or MPPT?
![Page 8: Development of PV System Sizing Tool with Economic Analysis · Charge Controller Model Validation Economic Analysis Battery Sizing Location Issue ... • Choice of charge control](https://reader030.vdocuments.site/reader030/viewer/2022040823/5e6e0f62b8ac1275405a7006/html5/thumbnails/8.jpg)
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PWM vs MPPT at Cell Temperature of 25˚C
Difference in power extracted = 54.6 W
Pmpp
Ppwm
Average Vbat = 26 V
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PWM vs MPPT at Cell Temperature of 70˚C
Difference in power extracted = 6.28 W
Pmpp
Ppwm
Average Vbat = 26 V
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Difference Between MPPT and PWM
Category Low Temperature High Temperature
Power Extracted PWM : 18.2 % < MPPT PWM : 2.5% < MPPT
System Costs PWM : 13.0% > MPPT PWM : 1.0% < MPPT
In terms of power extracted, advantage of MPPT over PWM reduces at higher temperatures.
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PWM vs MPPT
Factors PWM MPPT
Space Constraint?
Reliability?
Shaded Condition?
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Objective
• Development of system sizing tool.
• Economic analysis of Hybrid PV-Diesel systems.
• Choice of charge control technique- PWM or MPPT?
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Systems Considered
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Component Stand-alone PV
Hybrid PV-Diesel
Stand-alone Diesel
Load (kW) 3 3 3
Number of PV Modules
57 25 0
Battery Capacity (Ah)
12175 4084 0
Diesel Run hours/year
0 55.2 8760
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Cummulative Costs over 10 years
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Lifecycle Costs of Power sources over 10 years
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Conclusion
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Conclusion
• Both PWM and MPPT can besurveyed due to influence ofvarious factors
• Hybrid PV-Diesel systems – moreeconomical in short term
• PV system Sizing Tool Developed,implemented and validated
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Thank you for your attention!
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Abu Dhabi at 35˚ module tilt Jakarta at 35˚ module tilt
Irradiation Transposition models
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Thermal model - NOCT