Regulating the operating point of a power inverter

A power inverter connectable to an external bus line and configured to produce an output voltage, the power inverter comprising:

• a voltage regulator with a voltage setpoint defined for no load on the external bus line;
• and
• processing circuitry configured to:
• determine a power level related to a load on the external bus line;
• determine an adjusted voltage setpoint based on the power level, including the processing circuitry configured to:
• decrease the voltage setpoint to the adjusted voltage setpoint having a first value when the power level is above a maximum threshold;
• increase the voltage setpoint to the adjusted voltage setpoint having a second value when the power level is below a minimum threshold;
• and
• slew the adjusted voltage setpoint to the voltage setpoint so that the adjusted voltage setpoint has a third value when the power level is within a range defined by the maximum threshold and the minimum threshold;
• and
• cause the voltage regulator to regulate the output voltage based on the adjusted voltage setpoint.

A computer-readable storage medium for power limiting in a power inverter connectable to an external bus line, the power inverter configured to produce an output voltage and having a voltage regulator with a voltage setpoint defined for no load on the external bus line, the computer-readable storage medium being non-transitory and having computer-readable program code stored therein that in response to execution by processing circuitry, cause the power inverter to at least:

• determine a power level related to a load on the external bus line;
• determine an adjusted voltage setpoint based on the power level, including the power inverter caused to:
• decrease the voltage setpoint to the adjusted voltage setpoint having a first value when the power level is above a maximum threshold;
• increase the voltage setpoint to the adjusted voltage setpoint having a second value when the power level is below a minimum threshold;
• and
• slew the adjusted voltage setpoint to the voltage setpoint so that the adjusted voltage setpoint has a third value when the power level is within a range defined by the maximum threshold and the minimum threshold;
• and
• cause the voltage regulator to regulate the output voltage based on the adjusted voltage setpoint.