Engine generator set systems and methods providing load power fault protection

An engine generator set including:

• an engine;
• a generator, mechanically coupled to and driven by the engine, the generator including an output configured to be coupled to a load for providing electrical power signal to the load, the generator including a generator exciter circuit controlling a load voltage of the electrical power signal provided to the load using a signal received at a generator exciter circuit control input;
• a load power sensing circuit, including an input configured for coupling to the load, and an output providing a load power signal measuring an indication of power delivered from the generator to the load;
• and
• a voltage regulator circuit, including an output configured for coupling to the generator exciter circuit control input to control the load voltage, and including an input coupled to the load power sensing circuit output to receive the measured load power indication, the voltage regulator circuit configured to decrease a magnitude of the load voltage when the measured load power indication reaches a predetermined maximum value to substantially prevent the load power delivered from the engine-generator set to the load from exceeding a maximum load power value.

A method of generating AC electrical power and delivering the electrical power to a load, the method including:

• sensing a load power delivered by an engine-generator set to a load;
• determining whether the delivered load power has reached a maximum load power value;
• and
• if the delivered load power has reached a maximum load power value, then decreasing a load voltage to clamp the load power about the maximum load power value.