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Multi-MPPT and Clipping

Daly supports per-input MPPT modeling through dcInputs on each block.

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Multi-MPPT Execution Model

For each block, Daly can compute independent DC paths per input using:

• dcInputId
• mpptIndex
• moduleId
• stringLength
• stringCount
• optional orientation/shading metadata

Inputs are sorted deterministically before weighting and clipping logic is applied.

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Power-Sharing Policies

settings.dcInputPowerSharingPolicy controls how DC headroom is allocated:

• independent_equal (default)
• string_count_weighted
• manual_weighted (via per-input shareWeight)

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Enforced Electrical Constraints

Per-input and aggregate constraints include:

• MPPT max-voltage clamp (VMPPMax)
• Absolute DC over-voltage cutoff (VAbsMax)
• MPPT current cap (IMaxDC, including multi-MPPT partitioning)
• MPPT min-voltage behavior (VMppMin, limitation/cut behavior)
• Inverter DC nameplate clipping (PMaxDC)

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Grid-Limit and POI Interactions

When plant settings include poiLimitMW and limitAtInverters, Daly computes per-inverter DC headroom and redistributes caps by priority so total output respects upstream limits.

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Output Signals

Multi-MPPT runs contribute to loss columns and summaries including:

• mppt_voltage_clip_loss
• mppt_current_clip_loss
• inverter_dc_clip_loss
• AC clipping and subsystem losses