Method for operating an electrical system

An electrical system for a machine, comprising:

• a power-distribution network, including a first portion and a second portion;
• one or more power sources connected to the first portion of the power-distribution network through a power converter and connected to the second portion of the power-distribution network through a connection other than the power converter;
• one or more power loads connected to the first portion of the power-distribution network;
• one or more power loads connected to the second portion of the power-distribution network;
• and
• power-supply controls configured to execute a control method including:
• adjusting an output voltage at which the power converter supplies power to the first portion of the power-distribution network dependant upon power demands of one or more of the power loads connected to the second portion of the power-distribution network.

A machine, comprising:

• a driving system;
• an electrical system, including:
• one or more power sources;
• a power-distribution network, including a first portion connected to one or more of the power sources and a second portion connected to one or more of the power sources;
• one or more power loads connected to the first portion of the power-distribution network;
• one or more power loads connected to the second portion of the power-distribution network;
• power-supply controls configured to execute a control method including:
• when the driving system is operating, operating in a first load-priority mode, including supplying power to the first and second portions of the power-distribution network with a priority on supplying power to the first portion of the power distribution network;
• and
• when the driving system is not operating, selectively operating in the first load-priority mode or a second load-priority mode dependent upon conditions of operation of the machine, wherein the second load-priority mode includes supplying power to the first and second portions of the power-distribution network with a priority on supplying power to the second portion of the power-distribution network.