Difference between revisions of "PV source and charge controller sizing and selection overview"

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(Created page with "Category:PV source and charge controller sizing and selection *Flowchart *Emphasize oversizing array. Calculations are the minimum. Need to consider battery bank size, day...")
 
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[[Category:PV source and charge controller sizing and selection]]
 
[[Category:PV source and charge controller sizing and selection]]
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*Flowchart
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[[File:PVandCCprocess.png|thumb]]
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*Emphasize oversizing array. Calculations are the minimum. Need to consider battery bank size, days of autonomy, depth of discharge. Mention generator
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The most complicated part of the design process involves sizing and configuring the [[PV module|PV source]] as it must be done in conjunction with the sizing and selection of the [[Charge controller|charge controller]]. This process may need to be performed various times until the ideal design is found for the project, but going through this process will becomes simpler with each subsquent design. There are many different design parameters in this process for which conservative values and appropriate values from component specifications sheets should be used.
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*Emphasize performing various iterations of designs with modules and charge controller types.
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*Discuss need to recharge system while still powering loads during periods of bad weather.
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The main inputs to this process are:
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#'''[[Load and solar resource comparison|DC load evaluation]]''' - included in average daily Watt-hours required for the design month and used to size the PV source.
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#'''[[Load and solar resource comparison|AC load evaluation]]''' - included in average daily Watt-hours required for the design month and used to size the PV source.
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#'''[[System voltage parameter]]''' - used to determine potential PV module and charge controller configurations.
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#'''[[Load and solar resource comparison|Solar resource]]''' - used to determine required PV source size to meet daily energy needs.
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The primary steps in the process are:
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#Determine [[Minimum PV source size|minimum PV source size]]
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#Choose a charge controller type: [[MPPT charge controller sizing and selection]] or [[PWM charge controller sizing and selection]]
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#Choose a module size.
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#Create a charge controller and PV source (series and parallel) configuration.
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#Verify that the charge controller and PV source combination will function well.
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#If the charge controller and and PV module configuration is not a good design, then restart with a different combination.
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#Determine a final charge controller and PV module configuration that is the best balance between performance and cost.

Revision as of 16:55, 25 November 2020

PVandCCprocess.png

The most complicated part of the design process involves sizing and configuring the PV source as it must be done in conjunction with the sizing and selection of the charge controller. This process may need to be performed various times until the ideal design is found for the project, but going through this process will becomes simpler with each subsquent design. There are many different design parameters in this process for which conservative values and appropriate values from component specifications sheets should be used.

The main inputs to this process are:

  1. DC load evaluation - included in average daily Watt-hours required for the design month and used to size the PV source.
  2. AC load evaluation - included in average daily Watt-hours required for the design month and used to size the PV source.
  3. System voltage parameter - used to determine potential PV module and charge controller configurations.
  4. Solar resource - used to determine required PV source size to meet daily energy needs.

The primary steps in the process are:

  1. Determine minimum PV source size
  2. Choose a charge controller type: MPPT charge controller sizing and selection or PWM charge controller sizing and selection
  3. Choose a module size.
  4. Create a charge controller and PV source (series and parallel) configuration.
  5. Verify that the charge controller and PV source combination will function well.
  6. If the charge controller and and PV module configuration is not a good design, then restart with a different combination.
  7. Determine a final charge controller and PV module configuration that is the best balance between performance and cost.
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