US 12,348,037 B2
Control apparatus and method for controlling a power consumption and/or a power output of an energy system, and low-voltage network
Arvid Amthor, Grabfeld OT Nordheim (DE); Michael Metzger, Markt Schwaben (DE); Stefan Niessen, Erlangen (DE); Sebastian Schreck, Nuremberg (DE); and Sebastian Thiem, Neustadt an der Aisch (DE)
Assigned to SIEMENS AKTIENGESELLSCHAFT, Munich (DE)
Appl. No. 17/603,511
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Feb. 26, 2020, PCT No. PCT/EP2020/054964
§ 371(c)(1), (2) Date Oct. 13, 2021,
PCT Pub. No. WO2020/211998, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 19169863 (EP), filed on Apr. 17, 2019.
Prior Publication US 2022/0224111 A1, Jul. 14, 2022
Int. Cl. H02J 3/00 (2006.01)
CPC H02J 3/003 (2020.01) [H02J 3/004 (2020.01); H02J 2203/10 (2020.01); H02J 2300/24 (2020.01); H02J 2310/12 (2020.01)] 7 Claims
OG exemplary drawing
 
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.