PVMD Delft University of Technology Stand-Alone System PV Panels - PowerPoint PPT Presentation

Overview of components in a PV system Olindo Isabella PVMD Delft University of Technology

Stand-Alone System PV Panels Balance of System (BoS) Outputs Storage Charge Controller Inverter

Grid-Connected System Balance of PV Panels Outputs System (BoS) Inverter Grid

Components PV Panels Balance of System (BoS) Outputs Modules Charge Storage Cables Controller Grid DC/DC Mounting Inverter Converter Frames Bypass Diodes

PV Module Module technologies Solar Cell Crystalline Si Thin-film By WhistlingBird (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons By LG 전자 (http://www.flickr.com/photos/lge/10845634103/) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

PV Module Bypass diode to prevent destructive effect of hot-spot • Blocking diode to prevent reverse flow of current • Diode Crystalline Si Thin-film By Elvis untot. (Own work.) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons By LG 전자 (http://www.flickr.com/photos/lge/10845634103/) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Balance of System (BoS) Mounting structures • Cables • Batteries • § Advantages • Reliable energy source available at night or on cloudy days Drawbacks § • Decrease the efficiency of the PV system • Replacement every five to ten years • Add to the expense of the overall system • Safety concerns By Oregon Department of Transportation [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)]

Balance of System (BoS) DC/DC converter • DC/DC converter DC/AC inverter • Grid-connected or Stand-alone • DC/AC inverter High conversion efficiency • Embedded circuitry for MPPT • By Neotesla (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons By Mik81 (Own work) [Public domain], via Wikimedia Commons

Balance of System (BoS) DC/DC converter • DC/DC converter DC/AC inverter • Grid-connected or Stand-alone • DC/AC inverter High conversion efficiency • Embedded circuitry for MPPT • Charge controller • Charge controller Optimum charge to the batteries • Overcharge protection • Preventing unwanted discharging • Decoupling voltage and current levels • Embedded circuitry for MPPT • By Neotesla (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons By Mik81 (Own work) [Public domain], via Wikimedia Commons Kaspars Dambis, BSV20A Solar Charge Controller , 18/02/2017, Creative Commons License

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PVMD Delft University of Technology Stand-Alone System PV Panels - PowerPoint PPT Presentation

Overview of components in a PV system Olindo Isabella PVMD Delft University of Technology Stand-Alone System PV Panels Balance of System (BoS) Outputs Storage Charge Controller Inverter Grid-Connected System Balance of PV Panels

PVMD Delft University of Technology Introduction DNIcos(AOI) f(SVF, AOI, DHI) G Module GHI

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Building PV Array Rating 18.9 kW Annual Output 27,000 kWh GHG Reduction 20,000 kg/yr