Valeo Equipements Electriques Moteur

Julien Hobraiche

Jean-Paul Vilain

A method for driving a power bridge () which is used for controlling a multiphase electric load (), is connectable to said electric load () through several arms and is drivable by switching functions determining control vectors for controlling the load, wherein said control vectors are subdivided into the free wheel control vectors and active control vectors. The inventive method is characterized in that it comprises the use of a switching function production method which produced a reduced number of switching function combinations corresponding to the free wheel control vectors for producing a sequence of the control vectors.

Method for controlling a polyphase voltage inverter

A method for driving a power bridge () which is used for controlling a multiphase electric load (), connectable to said electric load () via several arms and drivable by switching functions which determine free wheel controlling vectors and are active for controlling the load. The inventive method consists in selecting a first switching function production method which produces a reduced number of combinations of switching functions corresponding to the free wheel control vectors or a second switching function production method which produces combinations of switching functions corresponding only to the active control vectors, wherein said method are defined according to a given reference voltage vector and in applying said selected for producing a sequence of control vectors from the produced combinations of switching functions.

Polyphase voltage converter control method

The present invention relates to a method for controlling a polyphase voltage inverter the inverter being designed to control a load in terms of pulse width modulation and to be connected upstream to a voltage source via a DC bus and downstream to an electrical load. It is connected to a control logic which implements said method. A geometric structure is produced while taking account of the constraints downstream and upstream of the inverter. More particularly, an upstream constraint relates to the voltage of the supply source at the input of the inverter. An error vector is also produced.

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Compiegne, France

Julien Hobraiche