NOVELTY - The power distribution device (1) comprises a number N1 of converting devices (2), each of which has a cascade generator (3) for converting a first portion of a provided mechanical power to a first electrical power with an alternating voltage of constant amplitude and constant frequency and a respective frequency converter (4) for providing a second electrical power with the alternating voltage of constant amplitude and constant frequency as a function of a second portion of the provided mechanical power, and a number N2 of constant frequency busses (5, 6).    USE - Power distribution device for distributing power in a power distribution network of an aircraft (claimed).    ADVANTAGE - The power distribution device reduces service costs, technical effort and total mass of the aircraft, increases efficiency and operational reliability of the aircraft, reduces the complexity of the network for the power supply of the aircraft, and can be simply and economically designed with high performance.    DETAILED DESCRIPTION - The power distribution device (1) comprises a number N1 of converting devices (2), each of which has a cascade generator (3) for converting a first portion of a provided mechanical power to a first electrical power with an alternating voltage of constant amplitude and constant frequency and a respective frequency converter (4) for providing a second electrical power with the alternating voltage of constant amplitude and constant frequency as a function of a second portion of the provided mechanical power, a number N2 of constant frequency busses (5, 6) for respectively transferring the electrical power of constant frequency provided by the converting device to a number N3 of consumers, where the number N3 includes a number N4 of consumers whose power consumption is to be controlled, and a number N4 of control devices, where each control device is disposed between the respective consumer to be controlled and the constant frequency bus in coupled fashion and is adapted to control the power consumption of the consumer to be controlled. A power supply device is provided with power supply units for providing the electrical power with constant frequency. The power supply unit is formed as one of the N1 number of the converting devices, number of N5 of fuel cells and/or number N6 of connectors for coupling external current sources for providing electrical power with constant frequency. A controllable switching device is provided for switching the power supply unit to one of the N2 number of the constant frequency busses. The number N4 of the consumers whose power consumption is to be controlled has a first quantity U1 of cascade motors to be controlled and/or a second quantity U2 of consumers to be controlled, which are regulatable to 0-100% of its power consumption. The control device is couplably arranged between the constant frequency bus and the cascade motor and is formed as a frequency converter, and is couplably arranged between the constant frequency bus and second quantity U2 of consumers to be controlled and is formed as a phase section control. The number N3 of the consumer has the number N4 of consumers whose power consumption is to be controlled and a number N7 of uncontrolled consumers. The N2 number of the constant frequency busses has a first quantity M1 of main busses and a second quantity M2 of emergency busses. The switching device switches the power supply unit to the number N2 of the constant frequency busses in dependent of the assessed last distribution. A number N8 of fuel cells is provided, where the fuel cell is coupled with the switching device using an inverter, which is implemented as self-commutated inverter. The inverter is formed as external-guiding inverter. A transformer rectifier is provided, which couples one of the number N2 of the constant frequency busses with a low voltage DC-coupled network. A mechanical supply device is provided for supplying mechanical power and has an engine of the aircraft. An INDEPENDENT CLAIM is included for a method for distributing power.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic block diagram of a power distribution device for distributing power in an aircraft.    Power distribution device (2) Converting devices (1)    Cascade generator (3)    Frequency converter (4)    Constant frequency busses. (5, 6)