Granted Patent B2

US 12,348,037 · App. 17/603,511 · Granted Jul 1, 2025

Inventors: Arvid Amthor (Grabfeld OT Nordheim, DE); Michael Metzger (Markt Schwaben, DE); Stefan Niessen (Erlangen, DE); Sebastian Schreck (Nuremberg, DE); Sebastian Thiem (Neustadt an der Aisch, DE)

Assignee: SIEMENS AKTIENGESELLSCHAFT

H02J3/003H02J3/004H02J2203/10H02J2300/24H02J2310/12

Abstract

Claims (89)

1. A control apparatus for controlling a power consumption and/or a power output of an energy system via a network connection point of a voltage limited network, the control apparatus comprising:

a voltage detector to detect a line voltage at the network connection point;

wherein the network connection point connects the energy system to the voltage limited network;

wherein the energy system includes an energy consumer and an energy source;

a processor programmed to reduce the power consumption and/or to increase the power output if the line voltage is below a first threshold value and/or to increase the power consumption and/or to reduce the power output if the line voltage is above a second threshold value greater than the first threshold value;

wherein the power consumption and/or power output varies according to P_(in/out) (u(t))=P − _(in/out)·[1−sgn(P_(in/out))·f_(in/out) (u(t)−u_0)],

u(t) represents the detected line voltage,

u_0 represents a set point of the line voltage,

P − _in represents an average power consumption, and

f_(in/out) represents a respective characteristic curve of the control,

in each case f_(in/out) (u(t)−u_0)=−F_1 Θ(u_1−u(t))+F_2 Θ(u(t)−u_2),

F_1 and F_2 are constant and greater than zero; and

Θ(x)=0 for x<0 and Θ(x)=1 for x≥0.

2. The control apparatus as claimed in claim 1 , wherein:

the power consumption varies according to P_in (u(t))=P − _in·[1+f_in (u(t)−u_0)];

u(t) represents the detected line voltage,

u_0 represent a set point of the line voltage,

P − _in represents an average power consumption ( 420 ),

f_in represents a characteristic curve ( 423 ) of the control, and

f_in (u(t)−u_0)<0 if the line voltage is below the first threshold value ( 421 ), and

f_in (u(t)−u_0)>0 if the line voltage is above the second threshold value.

3. The control apparatus as claimed in claim 1 , wherein:

the power output varies according to P_out (u(t))=P − _out·[1−f_out (u(t)−u_0)],

u(t) represents the detected line voltage,

u_0 represents a set point of the line voltage,

P − _out represents an average power output, and

f_out represents a characteristic curve of the control, and

f_out (u(t)−u_0)<0 if the line voltage is below the first threshold value, and

f_out (u(t)−u_0)>0 if the line voltage is above the second threshold value.

4. A method for controlling a power consumption and/or a power output of an energy system via a network connection point of a voltage limited network, the method comprising:

detecting a line voltage of the voltage limited network at the network connection point;

wherein the network connection point connects the energy system to the voltage limited network;

wherein the energy system includes an energy consumer and an energy source;

reducing the power consumption and/or increasing the power output if the line voltage is below a first threshold value; and/or

increasing the power consumption and/or reducing the power output if the line voltage is above a second threshold value which is greater than the first threshold value according to P_in (u(t))=P − _in·[1+f_in (u(t)−u_0)],

wherein u(t) represents the detected line voltage,

u_0 represents a set point of the line voltage,

P − _in represents an average power consumption ( 420 ), and

f_in represents a characteristic curve ( 423 ) of the control, and

f_in (u(t)−u_0)<0 if the line voltage is below the first threshold value, and

f_in (u(t)−u_0)>0 if the line voltage is above the second threshold value;

wherein the power consumption and/or power output varies according to P_(in/out) (u(t))=P − _(in/out)·[1−sgn(P_(in/out))·f_(in/out) (u(t)−u_0)],

u(t) represents the detected line voltage,

u_0 represents a set point of the line voltage,

P − _in represents an average power consumption, and

f_(in/out) represents a respective characteristic curve of the control,

in each case f_(in/out) (u(t)−u_0)=−F_1 Θ(u_1−u(t))+F_2 Θ(u(t)−u_2),

F_1 and F_2 are constant and greater than zero; and

Θ(x)=0 for x<0 and Θ(x)=1 for x>0.

5. The method as claimed in claim 4 , further comprising controlling the power consumption and/or the power output so the amount of energy which is exchanged via the network connection point within a time range is equal to a specified amount of energy.

6. A method for controlling a power consumption and/or a power output of an energy system via a network connection point of a voltage limited network, the method comprising:

detecting a line voltage of the voltage limited network at the network connection point;

wherein the network connection point connects the energy system to the voltage limited network;

wherein the energy system includes an energy consumer and an energy source;

reducing the power consumption and/or increasing the power output if the line voltage is below a first threshold value; and/or

increasing the power consumption and/or reducing the power output if the line voltage is above a second threshold value which is greater than the first threshold value according to P_out (u(t))=P − _out·[1−f_out (u(t)−u_0)],

wherein u(t) represents the detected line voltage,

u_0 represents a set point of the line voltage,

P − _out represents an average power output, and

f_out represents a characteristic curve of the control,

f_out (u(t)−u_Soll)<0 if the line voltage is below the first threshold value, and

f_out (u(t)−u_0)>0 if the line voltage is above the second threshold value;

wherein the power consumption and/or power output varies according to P_(in/out) (u(t))=P − _(in/out)·[1−sgn(P_(in/out))·f_(in/out) (u(t)−u_0)],

u(t) represents the detected line voltage,

u_0 represents a set point of the line voltage,

P − _in represents an average power consumption, and

f_(in/out) represents a respective characteristic curve of the control,

in each case f_(in/out) (u(t)−u_0)=−F_1 Θ(u_1−u(t))+F_2 Θ(u(t)−u_2),

F_1 and F_2 are constant and greater than zero; and

Θ(x)=0 for x<0 and Θ(x)=1 for x≥0.

7. A method for controlling a power consumption and/or a power output of an energy system via a network connection point of a voltage limited network, the method comprising:

detecting a line voltage of the voltage limited network at the network connection point;

wherein the network connection point connects the energy system to the voltage limited network;

wherein the energy system includes an energy consumer and an energy source;

reducing the power consumption and/or increasing the power output if the line voltage is below a first threshold value; and/or

increasing the power consumption and/or reducing the power output if the line voltage is above a second threshold value which is greater than the first threshold value according to P_(in/out) (u(t))=P − _(in/out)·[1−sgn(P_(in/out))·f_(in/out) (u(t)−u_0)],

wherein u(t) represents the detected line voltage,

u_0 represents a set point of the line voltage,

P − _in represents an average power consumption, and

f_(in/out) a respective characteristic curve of the control,

wherein in each case f_(in/out) (u(t)−u_0)=−F_1 Θ(u_1−u(t))+F_2 Θ(u(t)−u_2), and F_1 and F_2 are constant and greater than zero;

wherein the power consumption and/or power output varies according to P_(in/out) (u(t))=P − _(in/out)·[1−sgn(P_(in/out))·f_(in/out) (u(t)−u_0)],

u(t) represents the detected line voltage,

u_0 represents a set point of the line voltage,

P − _in represents an average power consumption, and

f_(in/out) represents a respective characteristic curve of the control,

in each case f_(in/out) (u(t)−u_0)=−F_1 Θ(u_1−u(t))+F_2 Θ(u(t)−u_2),

F_1 and F_2 are constant and greater than zero; and

Θ(x)=0 for x<0 and Θ(x)=1 for x≥0.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (23)