Using accumulator(s) for dynamic power storage within a multi axis servo motor system

A method of using accumulator(s) to generate electrical power in a marine environment, the method comprising:

• powering with a first power source a first electrical load controlled by a first controller;
• configuring an electric machine to operate as an electric motor;
• driving a hydraulic pump in a first direction with the electric motor;
• charging an accumulator with the hydraulic pump driven in the first direction by the electric motor;
• driving the hydraulic pump in a second direction with the accumulator operable to discharge;
• driving the electric machine configured to operate as an electric generator with the hydraulic pump;
• generating a second power source with the electric generator, wherein generating the second power source with the electric generator requires a minimum working pressure of gas, wherein the pre-charge pressure gas is about one third of a minimum working pressure of gas;
• and
• powering with the second power source a second electrical load controlled by a second controller.

A method of using an accumulator(s) to generate electrical power in a marine environment, the method comprising:

• configuring an electric machine to operate as an electric motor;
• driving a hydraulic pump in a first direction with the electric motor, wherein the electric motor is powered by an output of a first electric power source;
• charging an accumulator with the hydraulic pump driven in the first direction by the electric motor;
• configuring the accumulator to drive a hydraulic actuator, wherein the hydraulic actuator is a hydraulic transient load;
• and
• configuring the accumulator to drive an electrical load, wherein the electrical load is a transient electrical load, and
• wherein configuring the accumulator to drive the electrical load comprises:
• discharging the accumulator to drive the hydraulic pump in a second direction;
• driving the electric machine operating as an electric generator with the hydraulic pump;
• generating a second power source with the electric generator;
• controlling the electrical load with a second controller powered by the second power source;
• and
• maintaining a power drawn from the output of the first power source a constant level.