Electrical power system

An electrical power system, comprising:

• an electrical power source;
• a power converter connected, at an input side, to the electrical power source and comprising first and second DC output terminals and a capacitor connected between the first and second output terminals;
• a DC electrical network having a first input terminal and a second input terminal;
• a resistor;
• a switch arrangement comprising a plurality of switches having:
• a first configuration in which the resistor is connected in series between the first output terminal of the power converter and the first input terminal of the DC electrical network;
• a second configuration in which the first output terminal of the power converter is connected to the first input terminal of the DC electrical network bypassing the resistor;
• and
• a third configuration in which the resistor is connected in parallel across the capacitor, wherein:
• the electrical power system further comprises a control system for controlling a configuration of the switch arrangement, and
• the first output terminal of the power converter, one end of the capacitor, and one end of the resistor are all connected to a common node.