Method For Operating The Fluid Delivery System

Abstract

A method for operating a fluid delivery system, with a fluid delivery pump, voltage manipulator and an electric motor integrated into an electrical grid. The electric motor is controlled by a voltage applied to the electric motor and the voltage manipulator is upstream from the electric motor. The following steps include determining the desired fluid output, determining the required rotational speed of the pump to convey the desired fluid output, determining the required voltage to reach the required pump rotational speed, and activating the voltage manipulator to achieve the required voltage.

1 .- 12 . (canceled) 
     
     
         13 . A method for operating a fluid delivery system integrated into an electrical grid, having a fluid delivery pump, a voltage manipulator and an electric motor downstream of the voltage manipulator and controlled by a voltage applied to the electric motor, comprising:
 determining a desired fluid output;   determining a required rotational speed of the fluid delivery pump to convey the desired fluid output;   determining a required voltage to reach the required rotational speed of the fluid delivery pump; and   activating the voltage manipulator to achieve the required voltage.   
     
     
         14 . The method as claimed in  claim 13 , further comprising:
 activating the voltage manipulator when required voltage to reach the required rotational speed of the fluid delivery pump is outside a pre-defined voltage range.   
     
     
         15 . The method as claimed in  claim 14 , further comprising:
 determining the pre-defined voltage range based at least in part on a voltage level of the electrical grid.   
     
     
         16 . The method as claimed in  claim 13 ,
 wherein the electrical grid is operated at a specifiable mains voltage, and   wherein the voltage applied to the electric motor can be reduced to a level below the specifiable mains voltage by the voltage manipulator.   
     
     
         17 . The method as claimed in  claim 13 ,
 wherein the electrical grid is operated at a specifiable mains voltage, and   wherein the voltage applied to the electric motor can be increased to a level above the specifiable mains voltage by the voltage manipulator.   
     
     
         18 . The method as claimed in  claim 13 ,
 wherein the voltage manipulator is configured to act as a filter between the electric motor and a remaining electrical grid.   
     
     
         19 . The method as claimed in  claim 18 ,
 wherein the fluid delivery system is decoupled from the remaining electrical grid by the voltage manipulator with regard to a switching frequency of at least one control signal, whereby a lower switching frequency is predominant between the voltage manipulator and the electric motor than between the electrical grid and the voltage manipulator.   
     
     
         20 . The method as claimed in  claim 19 ,
 wherein a voltage emitted by the voltage manipulator to the electric motor corresponds to a voltage in the remaining electrical grid, whereby a switching frequency between electric motor and voltage manipulator is different than a switching frequency in the remaining electrical grid.   
     
     
         21 . The method as claimed in  claim 19 ,
 wherein the voltage manipulator is configured as an attenuator between a switching frequency of a control signal of the electric motor and a switching frequency in the remaining electrical grid.   
     
     
         22 . The method as claimed in  claim 13 ,
 wherein the voltage manipulator is composed of a booster, wherein the booster is constructed according to one of a ZETA principle, a SEPIC principle, a BUCK principle, or a BOOST principle.   
     
     
         23 . The method as claimed in  claim 13 ,
 wherein a voltage generated by the voltage manipulator and guided to the electric motor exactly corresponds to a required voltage to achieve one of a certain rotational speed of the fluid delivery pump and to convey a desired fluid output.   
     
     
         24 . The method as claimed in  claim 13 ,
 wherein a power module for block commutation is arranged between the voltage manipulator and the electric motor, and   
       wherein the power module is operated with a duty cycle of 90% to 100% and the rotational speed of the electric motor is controlled by the voltage emitted by the voltage manipulator.