Abstract: A system for supplying power to a motor driven pump. The system includes a variable speed electrical generator driven by an engine and a variable frequency drive connected to the output of the generator. The motor is powered by the output of the variable frequency drive. The system also includes a controller for changing the frequency of the output of the variable frequency drive and thereby changing the speed of the motor and the pump.

Abstract: A method of optimizing the dispatch of generators connected to an electrical grid. At least one of the gensets is a variable-speed genset. The optimum dispatch for each load condition is continuously updated by changing the load distribution slightly, testing for performance improvement and updating the distribution set points if improvement is found. Alternatively, the power system may be controlled so that the optimum dispatch for each load condition is determined with the use of an online model that is continuously updated with actual operational data to thereby determine the optimum dispatch.

Abstract: A generator system including an engine and an electrical generator. An electronic control unit configured to monitor and control the engine and generator is provided. The electronic control unit is configured to monitor the electrical load being supplied by the generator and to determine whether the load has remained within a predetermined range for a predetermined period of time. The electronic control unit is configured to adjust the speed of the engine by a predetermined amount when the load has been determined to have remained within the predetermined range for a predetermined length of time. The electronic control unit is configured to compare the present rate of fuel consumption for the adjusted speed to a stored value for the rate of fuel consumption corresponding to the present electrical load being applied to the generator and subsequently update the stored value for engine speed based on the results of the comparison.