An electrical power distribution system has a converter module having a converter to convert AC voltage from AC voltage sources to DC voltage and provide DC voltage power with adjustable maximum power values at electrical output interfaces of the converter module to a maximum module power value. It includes a power profile management device to negotiate individual power profiles with electrical consumers connectable to the electrical output interfaces, according to which individual power profiles electrical power up to a negotiated maximum power value is provided by the converter via the electrical output interface. The device detects instantaneous actual power consumption with which an individually negotiated power profile and calculates a power reserve value of the converter as the difference between negotiated maximum power value and instantaneous actual power consumption and negotiate with consumers whose power reserve value is higher than an adjustable reserve threshold value a new power profile.