API field
Operating point (override)
Operating-point method for an inverter given by library id
What it is
The operating-point method of an inverter chosen by its library or OND file id; it replaces the choice stored with the inverter.
Typical values and how to get it
Chosen on the Model tab.
Values
Operating point on the array's I–V curve = iv_curve (default): the array voltage moves along the array's current-voltage curve to the window edge, the AC limit or the DC current limit, whichever binds · Cap the power, no I–V curve = power_limits: the DC power is scaled down to the DC current limit and reduced to the AC limit without a current-voltage curve; the voltage window causes no loss · Clip at the AC nameplate = ac_clip: the array stays at its maximum-power point and the output is cut at the AC nameplate, with no voltage window, current or temperature limit · MPPT window on the module curve, AC clip = mppt_window: the string voltage is held inside the MPPT window on the module curve, the DC derates reduce the power afterwards, and the output is cut at the AC limit
API
options.inverter_operating_point