Power converter comprising: - a rectifier stage connected to a plurality of phases (R, S, T) of a network supplying an input current (I E), - a DC power supply bus which is connected to the rectifier stage, comprising a first power supply line (V+) and a second power supply line (V-), and over which a current rectified by the rectifier stage, and called rectifier current, flows, - a bus capacitor (C bus) connected to the first power supply line via a first controlled current source, and to the second power supply line, - said control current source comprising a first variable voltage source, characterised in that it comprises: - a second controlled current source connected in parallel with the first controlled current source, said second controlled current source comprising a second variable voltage source, - a control unit of the first controlled current source and of the second controlled current source, the control unit being arranged to distribute the rectifier current into a first current ( I 1) flowing in the first controlled current source and into a second current ( I 2) flowing in the second controlled current source, arranged to shape the rectifier current and to regulate the voltage ( V e1, V e2) on the terminals of the first variable voltage source and the voltage on the terminals of the second variable voltage source, and in that: - the control unit comprises means for determining a control voltage to be applied to each controlled current source k, the control voltage ( v k) being determined on the basis of the following relation: v k = u k V ek = u k ∗ V ek ∗ + PI I ∗ V ek − V ek ∗ ∑ k = 1 n I k where: - u k represents the control duty cycle for the controlled current source k, - V ek represents the voltage on the terminals of the capacitor of the controlled current source k, - I* represents the reference of the rectifier current, - u k * represents the duty cycle reference for the controlled current source k, - V ek * represents the voltage reference on the terminals of the capacitor of the controlled current source k, - PI represents an integral proportional-action regulator, - n represents the number of current sources connected in parallel, - Ik represents the current in the current source k. - a rectifier stage connected to a plurality of phases (R, S, T) of a network supplying an input current (I E), - a DC power supply bus which is connected to the rectifier stage, comprising a first power supply line (V+) and a second power supply line (V-), and over which a current rectified by the rectifier stage, and called rectifier current, flows, - a bus capacitor (C bus) connected to the first power supply line via a first controlled current source, and to the second power supply line, - said control current source comprising a first variable voltage source, - a second controlled current source connected in parallel with the first controlled current source, said second controlled current source comprising a second variable voltage source, - a control unit of the first controlled current source and of the second controlled current source, the control unit being arranged to distribute the rectifier current into a first current ( I 1) flowing in the first controlled current source and into a second current ( I 2) flowing in the second controlled current source, arranged to shape the rectifier current and to regulate the voltage ( V e1, V e2) on the terminals of the first variable voltage source and the voltage on the terminals of the second variable voltage source, and in that: - the control unit comprises means for determining a control voltage to be applied to each controlled current source k, the control voltage ( v k) being determined on the basis of the following relation: v k = u k V ek = u k ∗ V ek ∗ + PI I ∗ V ek − V ek ∗ ∑ k = 1 n I k where: - u k represents the control duty cycle for the controlled current source k, - V ek represents the voltage on the terminals of the capacitor of the controlled current source k, - I* represents the reference of the rectifier current, - u k * represents the duty cycle reference for the controlled current source k, - V ek * represents the voltage reference on the terminals of the capacitor of the controlled current source k, - PI represents an integral proportional-action regulator, - n represents the number of current sources connected in parallel, - Ik represents the current in the current source k. - u k represents the control duty cycle for the controlled current source k, - V ek represents the voltage on the terminals of the capacitor of the controlled current source k, - I* represents the reference of the rectifier current, - u k * represents the duty cycle reference for the controlled current source k, - V ek * represents the voltage reference on the terminals of the capacitor of the controlled current source k, - PI represents an integral proportional-action regulator, - n represents the number of current sources connected in parallel, - Ik represents the current in the current source k.